Merge MariaDB 5.1.66 -> 5.2.12

139 files changed, 7816 insertions, 965 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 13ef58a072a..d0a5cf03697 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -402,5 +402,130 @@ IF("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}.${CMAKE_PATCH_VERSION}" STREQU
  # CMake bug#11452, only in 2.8.3
  SET(CPACK_MONOLITHIC_INSTALL 1 CACHE INTERNAL "")
 ENDIF()
+
+IF(EXISTS ${CMAKE_SOURCE_DIR}/internal/CMakeLists.txt)
+  ADD_SUBDIRECTORY(internal)
+ENDIF()
+
+# Set up the installer
+SET(CPACK_PACKAGE_NAME "MariaDB")
+STRING(REPLACE "-MariaDB" "" CPACK_PACKAGE_VERSION ${VERSION})
+SET(CPACK_PACKAGE_VENDOR "Monty Program AB http://www.montyprogram.com")
+SET(CPACK_PACKAGE_DESCRIPTION_SUMMARY "MariaDB")
+SET(CPACK_RESOURCE_FILE_LICENSE ${CMAKE_SOURCE_DIR}/COPYING)
+SET(CPACK_GENERATOR NSIS)
+
+# Use our own NSIS template
+set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/win/cmake" ${CMAKE_MODULE_PATH})
+
+# Installer components and grouping
+SET(CPACK_COMPONENT_GROUP_SERVER_DESCRIPTION "The files necessary for running the MariaDB server.")
+SET(CPACK_COMPONENT_GROUP_DEVELOPMENT_DESCRIPTION "Files used in development on the MariaDB server.")
+SET(CPACK_ALL_INSTALL_TYPES Normal Development)
+SET(CPACK_COMPONENT_RUNTIME_DISPLAY_NAME "MariaDB server")
+SET(CPACK_COMPONENT_RUNTIME_DESCRIPTION "The server itself. You want to install this one.")
+SET(CPACK_COMPONENT_RUNTIME_GROUP "Server")
+SET(CPACK_COMPONENT_RUNTIME_INSTALL_TYPES Normal Development)
+SET(CPACK_COMPONENT_HEADERS_DISPLAY_NAME "Development headers")
+SET(CPACK_COMPONENT_HEADERS_DESCRIPTION "Header files for development on MariaDB.")
+SET(CPACK_COMPONENT_HEADERS_DEPENDS runtime)
+SET(CPACK_COMPONENT_HEADERS_GROUP "Development")
+SET(CPACK_COMPONENT_HEADERS_INSTALL_TYPES Development)
+SET(CPACK_COMPONENT_EMBEDDED_DISPLAY_NAME "Embedded")
+SET(CPACK_COMPONENT_EMBEDDED_DESCRIPTION "Files for embedding MariaDB in other projects.")
+SET(CPACK_COMPONENT_EMBEDDED_DEPENDS headers)
+SET(CPACK_COMPONENT_EMBEDDED_GROUP "Development")
+SET(CPACK_COMPONENT_EMBEDDED_INSTALL_TYPES Development)
+SET(CPACK_COMPONENT_SCRIPTS_DISPLAY_NAME "Server scripts")
+SET(CPACK_COMPONENT_SCRIPTS_DESCRIPTION "SQL and Perl scripts to control and modify the server. You need a perl installation for some of these to work.")
+SET(CPACK_COMPONENT_SCRIPTS_DEPENDS runtime)
+SET(CPACK_COMPONENT_SCRIPTS_GROUP "Server")
+SET(CPACK_COMPONENT_SCRIPTS_INSTALL_TYPES Normal Development)
+SET(CPACK_COMPONENT_MYSQLTEST_DISPLAY_NAME "MariaDB test suite")
+SET(CPACK_COMPONENT_MYSQLTEST_DESCRIPTION "The MariaDB regression test suite.")
+SET(CPACK_COMPONENT_MYSQLTEST_DEPENDS runtime)
+SET(CPACK_COMPONENT_MYSQLTEST_GROUP "Testing")
+SET(CPACK_COMPONENT_MYSQLTEST_INSTALL_TYPES Normal Development)
+SET(CPACK_COMPONENT_SQLBENCH_DISPLAY_NAME "SQL Bench")
+SET(CPACK_COMPONENT_SQLBENCH_DESCRIPTION "The MariaDB benchmark suite.")
+SET(CPACK_COMPONENT_SQLBENCH_DEPENDS runtime)
+SET(CPACK_COMPONENT_SQLBENCH_GROUP "Testing")
+SET(CPACK_COMPONENT_SQLBENCH_INSTALL_TYPES Normal Development)
+
+# Add files to the installer
+INSTALL(FILES COPYING EXCEPTIONS-CLIENT DESTINATION .)
+INSTALL(FILES support-files/my-huge.ini support-files/my-innodb-heavy-4G.ini DESTINATION .)
+INSTALL(FILES support-files/my-large.ini support-files/my-medium.ini DESTINATION .)
+INSTALL(FILES support-files/my-small.ini DESTINATION .)
+INSTALL(FILES Docs/INSTALL-BINARY DESTINATION Docs)
+INSTALL(FILES COPYING DESTINATION Docs)
+FILE(GLOB headerfiles "${CMAKE_CURRENT_SOURCE_DIR}/include/*.h")
+INSTALL(FILES ${headerfiles} DESTINATION include COMPONENT headers)
+INSTALL(FILES include/mysql/plugin.h DESTINATION include/mysql COMPONENT headers)
+INSTALL(FILES libmysql/libmysql.def DESTINATION include COMPONENT headers)
+
+# Handle the database files
+FILE(GLOB datafiles "${CMAKE_CURRENT_SOURCE_DIR}/win/data/mysql/*")
+INSTALL(FILES ${datafiles} DESTINATION data/clean/mysql)
+INSTALL(FILES win/data/maria_log.00000001 win/data/maria_log_control DESTINATION data/clean)
+INSTALL(DIRECTORY win/data/test DESTINATION data/clean)
+SET(CPACK_NSIS_EXTRA_INSTALL_COMMANDS "${CPACK_NSIS_EXTRA_INSTALL_COMMANDS}
+  IfFileExists '$INSTDIR\\\\data\\\\mysql\\\\db.frm' 0 CopyDatabaseFiles
+    MessageBox MB_OK 'There are already database files present in the data directory. Clean database files are not written to the directory'
+    GoTo EndCopyDatabaseFiles
+  CopyDatabaseFiles:
+    CopyFiles '$INSTDIR\\\\data\\\\clean\\\\*' '$INSTDIR\\\\data'
+  EndCopyDatabaseFiles:")
+SET(CPACK_NSIS_EXTRA_UNINSTALL_COMMANDS "${CPACK_NSIS_EXTRA_UNINSTALL_COMMANDS}
+  MessageBox MB_OK 'This will not delete the database files in $INSTDIR\\\\data'")
+
+# Files in the share dir
+INSTALL(FILES sql/share/errmsg.txt DESTINATION share COMPONENT runtime)
+FILE(GLOB charsets sql/share/charsets/*)
+INSTALL(FILES ${charsets} DESTINATION share/charsets COMPONENT runtime)
+FILE(GLOB share_dirs sql/share/*/errmsg.sys)
+FOREACH(ERRMSGFILE ${share_dirs})
+  STRING(REPLACE "//" "/" ERRMSGFILE ${ERRMSGFILE}) # Work around a cmake bug
+  FILE(RELATIVE_PATH DIRNAME ${PROJECT_SOURCE_DIR}/sql/share ${ERRMSGFILE})
+  STRING(REPLACE "/errmsg.sys" "" DIRNAME ${DIRNAME})
+  INSTALL(FILES ${ERRMSGFILE} DESTINATION share/${DIRNAME} COMPONENT runtime)
+ENDFOREACH(ERRMSGFILE ${share_dirs})
+
+# MTR files
+FILE(GLOB_RECURSE testfiles mysql-test/*)
+FOREACH(testfile ${testfiles})
+    FILE(RELATIVE_PATH dirname ${PROJECT_SOURCE_DIR} ${testfile})
+    GET_FILENAME_COMPONENT(dirname ${dirname} PATH)
+	GET_FILENAME_COMPONENT(filename ${testfile} NAME)
+	GET_FILENAME_COMPONENT(ext ${testfile} EXT)
+	SET(ok "yes")
+	IF (NOT "x_${ext}" STREQUAL "x_")
+		# Test if this is one of the extensions we don't want to install
+		STRING(TOLOWER ${ext} ext)
+		IF(${ext} STREQUAL ".dir" OR ${ext} STREQUAL ".vcproj" OR ${ext} STREQUAL ".user" OR ${ext} STREQUAL ".ilk"
+				OR ${ext} STREQUAL ".idb" OR ${ext} STREQUAL ".map" OR ${ext} STREQUAL ".gcov"
+				OR ${ext} STREQUAL ".supp" OR ${ext} STREQUAL ".am" OR ${ext} STREQUAL ".stress")
+			SET(ok "no")
+		ENDIF()
+	ENDIF(NOT "x_${ext}" STREQUAL "x_")
+	IF (${ok} STREQUAL "yes")
+		# Message("Dir: ${dirname}. File: ${filename}. Ext: ${ext}")
+		INSTALL(FILES ${testfile} DESTINATION ${dirname} COMPONENT mysqltest)
+	ENDIF(${ok} STREQUAL "yes")
+ENDFOREACH(testfile ${testfiles})
+
+# SQL Bench
+FILE(GLOB_RECURSE benchfiles sql-bench/*)
+FOREACH(testfile ${testfiles})
+    FILE(RELATIVE_PATH dirname ${PROJECT_SOURCE_DIR} ${testfile})
+    GET_FILENAME_COMPONENT(dirname ${dirname} PATH)
+	GET_FILENAME_COMPONENT(filename ${testfile} NAME)
+	IF(NOT ${dirname} STREQUAL "sql-bench" OR ${filename} STREQUAL "README")
+		INSTALL(FILES ${testfile} DESTINATION ${dirname} COMPONENT sqlbench)
+	ENDIF()
+ENDFOREACH(testfile ${testfiles})
+
+INCLUDE(InstallRequiredSystemLibraries)
+
 # This must always be the last line
 INCLUDE(CPack)
diff --git a/Docs/INSTALL-BINARY b/Docs/INSTALL-BINARY
index 01ac65950a9..7ff33c7051e 100644
--- a/Docs/INSTALL-BINARY
+++ b/Docs/INSTALL-BINARY
@@ -31,7 +31,7 @@ also applies.
        first.
 
    If you run into problems and need to file a bug report,
-   please report them to: http://bugs.launchpad.net/maria
+   please report them to: http://mariadb.org/jira
 
    See the instructions in Section 1.6, "How to Report Bugs or Problems."
 
diff --git a/client/mysql.cc b/client/mysql.cc
index 0ce28fa90c6..90c14087fed 100644
--- a/client/mysql.cc
+++ b/client/mysql.cc
@@ -1,6 +1,6 @@
-/* Copyright (C) 2000-2009 MySQL AB
-   Copyright 2000, 2010-2011, Oracle and/or its affiliates.
-   Copyright 2000-2010 Monty Program Ab
+/*
+   Copyright (c) 2000, 2012, Oracle and/or its affiliates.
+   Copyright (c) 2009, 2012, Monty Program Ab.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -119,6 +119,7 @@ extern "C" {
 #endif
 
 #include "completion_hash.h"
+#include <welcome_copyright_notice.h> // ORACLE_WELCOME_COPYRIGHT_NOTICE
 
 #define PROMPT_CHAR '\\'
 #define DEFAULT_DELIMITER ";"
@@ -1179,7 +1180,7 @@ int main(int argc,char *argv[])
 	  mysql_thread_id(&mysql), server_version_string(&mysql));
   put_info((char*) glob_buffer.ptr(),INFO_INFO);
 
-  put_info(COPYRIGHT_NOTICE, INFO_INFO);
+  put_info(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"), INFO_INFO);
 
 #ifdef HAVE_READLINE
   initialize_readline((char*) my_progname);
@@ -1614,7 +1615,7 @@ static void usage(int version)
 
   if (version)
     return;
-  printf("%s", COPYRIGHT_NOTICE);
+  puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"));
   printf("Usage: %s [OPTIONS] [database]\n", my_progname);
   my_print_help(my_long_options);
   print_defaults("my", load_default_groups);
@@ -2836,7 +2837,7 @@ static int com_server_help(String *buffer __attribute__((unused)),
 			   char *line __attribute__((unused)), char *help_arg)
 {
   MYSQL_ROW cur;
-  const char *server_cmd= buffer->ptr();
+  const char *server_cmd;
   char cmd_buf[100 + 1];
   MYSQL_RES *result;
   int error;
@@ -2851,9 +2852,12 @@ static int com_server_help(String *buffer __attribute__((unused)),
 		*++end_arg= '\0';
 	}
 	(void) strxnmov(cmd_buf, sizeof(cmd_buf), "help '", help_arg, "'", NullS);
-    server_cmd= cmd_buf;
   }
-  
+  else
+    (void) strxnmov(cmd_buf, sizeof(cmd_buf), "help ", help_arg, NullS);
+
+  server_cmd= cmd_buf;
+
   if (!status.batch)
   {
     old_buffer= *buffer;
@@ -2921,6 +2925,11 @@ static int com_server_help(String *buffer __attribute__((unused)),
     else
     {
       put_info("\nNothing found", INFO_INFO);
+      if (strncasecmp(server_cmd, "help 'contents'", 15) == 0)
+      {
+         put_info("\nPlease check if 'help tables' are loaded.\n", INFO_INFO); 
+         goto err;
+      }
       put_info("Please try to run 'help contents' for a list of all accessible topics\n", INFO_INFO);
     }
   }
diff --git a/client/mysql_upgrade.c b/client/mysql_upgrade.c
index c6e54cba67b..014e4fe65cb 100644
--- a/client/mysql_upgrade.c
+++ b/client/mysql_upgrade.c
@@ -1,7 +1,5 @@
 /*
-   Copyright (C) 2000 MySQL AB
-   Copyright (c) 2006, 2011, Oracle and/or its affiliates.
-   Copyright (C) 2010-2011 Monty Program Ab
+   Copyright (c) 2006, 2012, Oracle and/or its affiliates.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -21,6 +19,8 @@
 #include <sslopt-vars.h>
 #include "../scripts/mysql_fix_privilege_tables_sql.c"
 
+#include <welcome_copyright_notice.h> /* ORACLE_WELCOME_COPYRIGHT_NOTICE */
+
 #define VER "1.2"
 
 #ifdef HAVE_SYS_WAIT_H
@@ -235,6 +235,7 @@ get_one_option(int optid, const struct my_option *opt,
   case '?':
     printf("%s  Ver %s Distrib %s, for %s (%s)\n",
            my_progname, VER, MYSQL_SERVER_VERSION, SYSTEM_TYPE, MACHINE_TYPE);
+    puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"));
     puts("MySQL utility for upgrading databases to new MySQL versions.\n");
     my_print_help(my_long_options);
     exit(0);
diff --git a/client/mysqladmin.cc b/client/mysqladmin.cc
index 0716e391ab4..a7aa73fb02a 100644
--- a/client/mysqladmin.cc
+++ b/client/mysqladmin.cc
@@ -1,5 +1,5 @@
 /*
-   Copyright (c) 2000, 2011, Oracle and/or its affiliates.
+   Copyright (c) 2000, 2012, Oracle and/or its affiliates.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -25,6 +25,7 @@
 #include <sys/stat.h>
 #include <mysql.h>
 #include <sql_common.h>
+#include <welcome_copyright_notice.h>           /* ORACLE_WELCOME_COPYRIGHT_NOTICE */
 
 #define ADMIN_VERSION "9.0"
 #define MAX_MYSQL_VAR 512
@@ -704,9 +705,7 @@ static int execute_commands(MYSQL *mysql,int argc, char **argv)
     case ADMIN_VER:
       new_line=1;
       print_version();
-      puts("Copyright 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc,\n"
-           "2009 Monty Program Ab");
-      puts("This software comes with ABSOLUTELY NO WARRANTY. This is free software,\nand you are welcome to modify and redistribute it under the GPL license\n");
+      puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"));
       printf("Server version\t\t%s\n", mysql_get_server_info(mysql));
       printf("Protocol version\t%d\n", mysql_get_proto_info(mysql));
       printf("Connection\t\t%s\n",mysql_get_host_info(mysql));
@@ -1159,9 +1158,7 @@ static void print_version(void)
 static void usage(void)
 {
   print_version();
-  puts("Copyright 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc,\n"
-       "2009 Monty Program Ab");
-  puts("This software comes with ABSOLUTELY NO WARRANTY. This is free software,\nand you are welcome to modify and redistribute it under the GPL license\n");
+  puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"));
   puts("Administration program for the mysqld daemon.");
   printf("Usage: %s [OPTIONS] command command....\n", my_progname);
   my_print_help(my_long_options);
diff --git a/client/mysqlbinlog.cc b/client/mysqlbinlog.cc
index 3a7f7a603f9..67fcbab4314 100644
--- a/client/mysqlbinlog.cc
+++ b/client/mysqlbinlog.cc
@@ -36,6 +36,8 @@
 #include "mysql_priv.h" 
 #include "log_event.h"
 #include "sql_common.h"
+#include "my_dir.h"
+#include <welcome_copyright_notice.h> // ORACLE_WELCOME_COPYRIGHT_NOTICE
 
 /* Needed for Rpl_filter */
 CHARSET_INFO* system_charset_info= &my_charset_utf8_general_ci;
@@ -1341,10 +1343,7 @@ static void print_version()
 static void usage()
 {
   print_version();
-  puts("By Monty and Sasha, for your professional use\n\
-This software comes with NO WARRANTY:  This is free software,\n\
-and you are welcome to modify and redistribute it under the GPL license.\n");
-
+  puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"));
   printf("\
 Dumps a MySQL binary log in a format usable for viewing or for piping to\n\
 the mysql command line client.\n\n");
@@ -1888,6 +1887,7 @@ static Exit_status check_header(IO_CACHE* file,
   uchar header[BIN_LOG_HEADER_SIZE];
   uchar buf[PROBE_HEADER_LEN];
   my_off_t tmp_pos, pos;
+  MY_STAT my_file_stat;
 
   delete glob_description_event;
   if (!(glob_description_event= new Format_description_log_event(3)))
@@ -1897,7 +1897,16 @@ static Exit_status check_header(IO_CACHE* file,
   }
 
   pos= my_b_tell(file);
-  my_b_seek(file, (my_off_t)0);
+
+  /* fstat the file to check if the file is a regular file. */
+  if (my_fstat(file->file, &my_file_stat, MYF(0)) == -1)
+  {
+    error("Unable to stat the file.");
+    return ERROR_STOP;
+  }
+  if ((my_file_stat.st_mode & S_IFMT) == S_IFREG)
+    my_b_seek(file, (my_off_t)0);
+
   if (my_b_read(file, header, sizeof(header)))
   {
     error("Failed reading header; probably an empty file.");
diff --git a/client/mysqlcheck.c b/client/mysqlcheck.c
index 8bf6cbe8d83..bfc18161380 100644
--- a/client/mysqlcheck.c
+++ b/client/mysqlcheck.c
@@ -1,6 +1,5 @@
-/* Copyright (C) 2000 MySQL AB & Jani Tolonen
-   Copyright (c) 2001, 2011, Oracle and/or its affiliates.
-   Copyright (C) 2010- 2011 Monty Program Ab
+/*
+   Copyright (c) 2001, 2012, Oracle and/or its affiliates.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -23,6 +22,7 @@
 #include <mysql_version.h>
 #include <mysqld_error.h>
 #include <sslopt-vars.h>
+#include <welcome_copyright_notice.h> /* ORACLE_WELCOME_COPYRIGHT_NOTICE */
 
 /* Exit codes */
 
@@ -226,13 +226,7 @@ static void print_version(void)
 static void usage(void)
 {
   print_version();
-  puts("By Jani Tolonen, 2001-04-20, MySQL Development Team.\n");
-  puts("This software comes with ABSOLUTELY NO WARRANTY. This is free software,");
-  puts("and you are welcome to modify and redistribute it under the GPL license.\n");
-  printf("Usage: %s [OPTIONS] database [tables]\n", my_progname);
-  printf("OR     %s [OPTIONS] --databases DB1 [DB2 DB3...]\n",
-	 my_progname);
-  printf("OR     %s [OPTIONS] --all-databases\n\n", my_progname);
+  puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"));
   puts("This program can be used to CHECK (-c, -m, -C), REPAIR (-r), ANALYZE (-a),");
   puts("or OPTIMIZE (-o) tables. Some of the options (like -e or -q) can be");
   puts("used at the same time. Not all options are supported by all storage engines.");
diff --git a/client/mysqldump.c b/client/mysqldump.c
index ffb5e076417..3653cc93eeb 100644
--- a/client/mysqldump.c
+++ b/client/mysqldump.c
@@ -54,6 +54,8 @@
 #include "mysqld_error.h"
 #include "../sql/ha_ndbcluster_tables.h"
 
+#include <welcome_copyright_notice.h> /* ORACLE_WELCOME_COPYRIGHT_NOTICE */
+
 /* Exit codes */
 
 #define EX_USAGE 1
@@ -584,8 +586,7 @@ static void short_usage_sub(void)
 static void usage(void)
 {
   print_version();
-  puts("By Igor Romanenko, Monty, Jani & Sinisa and others.");
-  puts("This software comes with ABSOLUTELY NO WARRANTY. This is free software,\nand you are welcome to modify and redistribute it under the GPL license.\n");
+  puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"));
   puts("Dumping structure and contents of MySQL databases and tables.");
   short_usage_sub();
   print_defaults("my",load_default_groups);
diff --git a/client/mysqlimport.c b/client/mysqlimport.c
index 654f19f6f57..0067f5b3a8b 100644
--- a/client/mysqlimport.c
+++ b/client/mysqlimport.c
@@ -1,5 +1,5 @@
 /*
-   Copyright (c) 2000, 2011, Oracle and/or its affiliates.
+   Copyright (c) 2000, 2012, Oracle and/or its affiliates.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -34,6 +34,8 @@
 #include <my_pthread.h>
 #endif
 
+#include <welcome_copyright_notice.h>   /* ORACLE_WELCOME_COPYRIGHT_NOTICE */
+
 
 /* Global Thread counter */
 uint counter;
@@ -203,7 +205,8 @@ static void usage(void)
   puts("Copyright 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc.");
   puts("Copyright 2008-2011 Oracle and Monty Program Ab.");
   print_version();
-  printf("\n\
+  puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"));
+  printf("\
 Loads tables from text files in various formats.  The base name of the\n\
 text file must be the name of the table that should be used.\n\
 If one uses sockets to connect to the MySQL server, the server will open and\n\
diff --git a/client/mysqlshow.c b/client/mysqlshow.c
index e1cbfcb9404..7d73c0108cf 100644
--- a/client/mysqlshow.c
+++ b/client/mysqlshow.c
@@ -1,5 +1,5 @@
 /*
-   Copyright (c) 2000, 2011, Oracle and/or its affiliates.
+   Copyright (c) 2000, 2012, Oracle and/or its affiliates.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -27,6 +27,7 @@
 #include <signal.h>
 #include <stdarg.h>
 #include <sslopt-vars.h>
+#include <welcome_copyright_notice.h>   /* ORACLE_WELCOME_COPYRIGHT_NOTICE */
 
 static char * host=0, *opt_password=0, *user=0;
 static my_bool opt_show_keys= 0, opt_compress= 0, opt_count=0, opt_status= 0;
@@ -256,9 +257,7 @@ static void print_version(void)
 static void usage(void)
 {
   print_version();
-  puts("Copyright 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc.");
-  puts("Copyright 2008-2011 Oracle and Monty Program Ab.");
-  puts("This software comes with ABSOLUTELY NO WARRANTY. This is free software,\nand you are welcome to modify and redistribute it under the GPL license.\n");
+  puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"));
   puts("Shows the structure of a MySQL database (databases, tables, and columns).\n");
   printf("Usage: %s [OPTIONS] [database [table [column]]]\n",my_progname);
   puts("\n\
diff --git a/client/mysqlslap.c b/client/mysqlslap.c
index 7cac3a14379..6ae0271eedb 100644
--- a/client/mysqlslap.c
+++ b/client/mysqlslap.c
@@ -1,5 +1,5 @@
 /*
-   Copyright (c) 2005, 2011, Oracle and/or its affiliates.
+   Copyright (c) 2005, 2012, Oracle and/or its affiliates.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -95,6 +95,7 @@ TODO:
 #include <sys/wait.h>
 #endif
 #include <ctype.h>
+#include <welcome_copyright_notice.h>   /* ORACLE_WELCOME_COPYRIGHT_NOTICE */
 
 #ifdef __WIN__
 #define srandom  srand
@@ -709,8 +710,7 @@ static void print_version(void)
 static void usage(void)
 {
   print_version();
-  puts("Copyright (C) 2005 MySQL AB");
-  puts("This software comes with ABSOLUTELY NO WARRANTY. This is free software,\nand you are welcome to modify and redistribute it under the GPL license.\n");
+  puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2005"));
   puts("Run a query multiple times against the server.\n");
   printf("Usage: %s [OPTIONS]\n",my_progname);
   print_defaults("my",load_default_groups);
diff --git a/client/mysqltest.cc b/client/mysqltest.cc
index 86deb2eadac..fa5f2b566c2 100644
--- a/client/mysqltest.cc
+++ b/client/mysqltest.cc
@@ -55,6 +55,8 @@
 #include <signal.h>
 #include <my_stacktrace.h>
 
+#include <welcome_copyright_notice.h> // ORACLE_WELCOME_COPYRIGHT_NOTICE
+
 #ifdef __WIN__
 #include <crtdbg.h>
 #define SIGNAL_FMT "exception 0x%x"
@@ -6281,8 +6283,7 @@ void print_version(void)
 void usage()
 {
   print_version();
-  printf("MySQL AB, by Sasha, Matt, Monty & Jani and others\n");
-  printf("This software comes with ABSOLUTELY NO WARRANTY\n\n");
+  puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"));
   printf("Runs a test against the mysql server and compares output with a results file.\n\n");
   printf("Usage: %s [OPTIONS] [database] < test_file\n", my_progname);
   my_print_help(my_long_options);
diff --git a/client/sql_string.h b/client/sql_string.h
index 6d8269a4b31..423a9c400b3 100644
--- a/client/sql_string.h
+++ b/client/sql_string.h
@@ -1,5 +1,5 @@
 /*
-   Copyright (c) 2000, 2010, Oracle and/or its affiliates
+   Copyright (c) 2000, 2012, Oracle and/or its affiliates.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -198,8 +198,12 @@ public:
   }
   bool real_alloc(uint32 arg_length);			// Empties old string
   bool realloc(uint32 arg_length);
-  inline void shrink(uint32 arg_length)		// Shrink buffer
+
+  // Shrink the buffer, but only if it is allocated on the heap.
+  inline void shrink(uint32 arg_length)
   {
+    if (!is_alloced())
+      return;
     if (arg_length < Alloced_length)
     {
       char *new_ptr;
@@ -215,7 +219,7 @@ public:
       }
     }
   }
-  bool is_alloced() { return alloced; }
+  bool is_alloced() const { return alloced; }
   inline String& operator = (const String &s)
   {
     if (&s != this)
diff --git a/extra/perror.c b/extra/perror.c
index 0359100d3a1..d7f232f951b 100644
--- a/extra/perror.c
+++ b/extra/perror.c
@@ -1,5 +1,5 @@
 /*
-   Copyright (c) 2000, 2011, Oracle and/or its affiliates
+   Copyright (c) 2000, 2012, Oracle and/or its affiliates.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -29,6 +29,7 @@
 #include "../storage/ndb/src/kernel/error/ndbd_exit_codes.c"
 #include "../storage/ndb/include/mgmapi/mgmapi_error.h"
 #endif
+#include <welcome_copyright_notice.h> /* ORACLE_WELCOME_COPYRIGHT_NOTICE */
 
 static my_bool verbose, print_all_codes;
 
@@ -115,7 +116,7 @@ static void print_version(void)
 static void usage(void)
 {
   print_version();
-  puts("This software comes with ABSOLUTELY NO WARRANTY. This is free software,\nand you are welcome to modify and redistribute it under the GPL license\n");
+  puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"));
   printf("Print a description for a system error code or a MySQL error code.\n");
   printf("If you want to get the error for a negative error code, you should use\n-- before the first error code to tell perror that there was no more options.\n\n");
   printf("Usage: %s [OPTIONS] [ERRORCODE [ERRORCODE...]]\n",my_progname);
diff --git a/extra/yassl/src/ssl.cpp b/extra/yassl/src/ssl.cpp
index 00a3b885f88..3b1fc43bc94 100644
--- a/extra/yassl/src/ssl.cpp
+++ b/extra/yassl/src/ssl.cpp
@@ -747,7 +747,7 @@ void SSL_CTX_set_verify(SSL_CTX* ctx, int mode, VerifyCallback vc)
 int SSL_CTX_load_verify_locations(SSL_CTX* ctx, const char* file,
                                   const char* path)
 {
-    int       ret = SSL_SUCCESS;
+    int       ret = SSL_FAILURE;
     const int HALF_PATH = 128;
 
     if (file) ret = read_file(ctx, file, SSL_FILETYPE_PEM, CA);
diff --git a/extra/yassl/taocrypt/src/Makefile.am b/extra/yassl/taocrypt/src/Makefile.am
index 568ce259dc0..bfc9bfe7084 100644
--- a/extra/yassl/taocrypt/src/Makefile.am
+++ b/extra/yassl/taocrypt/src/Makefile.am
@@ -6,7 +6,7 @@ libtaocrypt_la_SOURCES  = aes.cpp aestables.cpp algebra.cpp arc4.cpp \
         asn.cpp bftables.cpp blowfish.cpp coding.cpp des.cpp dh.cpp \
         dsa.cpp file.cpp hash.cpp integer.cpp md2.cpp md4.cpp md5.cpp misc.cpp \
         random.cpp ripemd.cpp rsa.cpp sha.cpp template_instnt.cpp \
-        tftables.cpp twofish.cpp crypto.cpp rabbit.cpp hc128.cpp
+        tftables.cpp twofish.cpp rabbit.cpp hc128.cpp
 
 libtaocrypt_la_CXXFLAGS = @yassl_taocrypt_extra_cxxflags@ -DYASSL_PURE_C \
 			  @yassl_thread_cxxflags@
diff --git a/extra/yassl/taocrypt/src/crypto.cpp b/extra/yassl/taocrypt/src/crypto.cpp
deleted file mode 100644
index 90d406bf0c2..00000000000
--- a/extra/yassl/taocrypt/src/crypto.cpp
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
-   Copyright (C) 2000-2007 MySQL AB
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; version 2 of the License.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; see the file COPYING. If not, write to the
-   Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
-   MA  02110-1301  USA.
-*/
-
-/* put features that other apps expect from OpenSSL type crypto */
-
-
-
-extern "C" {
-
-    // for libcurl configure test, these are the signatures they use
-    // locking handled internally by library
-    char CRYPTO_lock() { return 0;}
-    char CRYPTO_add_lock() { return 0;}
-
-
-    // for openvpn, test are the signatures they use
-    char EVP_CIPHER_CTX_init() { return 0; }
-    char CRYPTO_mem_ctrl() { return 0; }
-}  // extern "C"
-
-
-
diff --git a/include/welcome_copyright_notice.h b/include/welcome_copyright_notice.h
index 6898cc8630c..8a9db3ad3dd 100644
--- a/include/welcome_copyright_notice.h
+++ b/include/welcome_copyright_notice.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2011, Oracle and/or its affiliates.
+/* Copyright (c) 2011, 2012, Oracle and/or its affiliates.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -16,12 +16,14 @@
 #ifndef _welcome_copyright_notice_h_
 #define _welcome_copyright_notice_h_
 
+#define COPYRIGHT_NOTICE_CURRENT_YEAR "2012"
+
 /*
   This define specifies copyright notice which is displayed by every MySQL
   program on start, or on help screen.
 */
-
-#define ORACLE_WELCOME_COPYRIGHT_NOTICE(years) \
-  "Copyright (c) " years ", Oracle, Monty Program Ab and others.\n"
+#define ORACLE_WELCOME_COPYRIGHT_NOTICE(first_year) \
+  "Copyright (c) " first_year ", " COPYRIGHT_NOTICE_CURRENT_YEAR \
+   ", Oracle, Monty Program Ab and others.\n"
 
 #endif /* _welcome_copyright_notice_h_ */
diff --git a/mysql-test/Makefile.am b/mysql-test/Makefile.am
index b73771391c2..f841645947e 100644
--- a/mysql-test/Makefile.am
+++ b/mysql-test/Makefile.am
@@ -85,6 +85,7 @@ TEST_DIRS = t r include std_data std_data/parts collections \
 	extra/binlog_tests/ extra/rpl_tests \
 	suite/binlog suite/binlog/t suite/binlog/r suite/binlog/std_data \
 	suite/federated \
+	suite/federated/include \
 	suite/pbxt/t suite/pbxt/r suite/pbxt \
 	suite/vcol suite/vcol/t suite/vcol/r suite/vcol/inc \
 	suite/oqgraph suite/oqgraph/t suite/oqgraph/r  \
diff --git a/mysql-test/r/information_schema.result b/mysql-test/r/information_schema.result
index 8a2b258e356..2b32e27162c 100644
--- a/mysql-test/r/information_schema.result
+++ b/mysql-test/r/information_schema.result
@@ -56,9 +56,13 @@ FILES
 GLOBAL_STATUS
 GLOBAL_VARIABLES
 INDEX_STATISTICS
+INNODB_BUFFER_PAGE
+INNODB_BUFFER_PAGE_LRU
 INNODB_BUFFER_POOL_PAGES
 INNODB_BUFFER_POOL_PAGES_BLOB
 INNODB_BUFFER_POOL_PAGES_INDEX
+INNODB_BUFFER_POOL_STATS
+INNODB_CHANGED_PAGES
 INNODB_CMP
 INNODB_CMPMEM
 INNODB_CMPMEM_RESET
@@ -94,7 +98,6 @@ USER_PRIVILEGES
 USER_STATISTICS
 VIEWS
 XTRADB_ADMIN_COMMAND
-XTRADB_ENHANCEMENTS
 columns_priv
 db
 event
@@ -872,6 +875,8 @@ COLUMNS	TABLE_NAME	select
 COLUMN_PRIVILEGES	TABLE_NAME	select
 FILES	TABLE_NAME	select
 INDEX_STATISTICS	TABLE_NAME	select
+INNODB_BUFFER_PAGE	TABLE_NAME	select
+INNODB_BUFFER_PAGE_LRU	TABLE_NAME	select
 INNODB_INDEX_STATS	table_name	select
 INNODB_TABLE_STATS	table_name	select
 KEY_COLUMN_USAGE	TABLE_NAME	select
@@ -1258,12 +1263,12 @@ DROP PROCEDURE p1;
 DROP USER mysql_bug20230@localhost;
 SELECT MAX(table_name) FROM information_schema.tables WHERE table_schema IN ('mysql', 'INFORMATION_SCHEMA', 'test');
 MAX(table_name)
-XTRADB_ENHANCEMENTS
+XTRADB_ADMIN_COMMAND
 SELECT table_name from information_schema.tables
 WHERE table_name=(SELECT MAX(table_name)
 FROM information_schema.tables WHERE table_schema IN ('mysql', 'INFORMATION_SCHEMA', 'test'));
 table_name
-XTRADB_ENHANCEMENTS
+XTRADB_ADMIN_COMMAND
 DROP TABLE IF EXISTS bug23037;
 DROP FUNCTION IF EXISTS get_value;
 SELECT COLUMN_NAME, MD5(COLUMN_DEFAULT), LENGTH(COLUMN_DEFAULT) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='bug23037';
diff --git a/mysql-test/r/information_schema_all_engines.result b/mysql-test/r/information_schema_all_engines.result
index 7a2c548a329..7dda3d32eb9 100644
--- a/mysql-test/r/information_schema_all_engines.result
+++ b/mysql-test/r/information_schema_all_engines.result
@@ -38,13 +38,13 @@ INNODB_BUFFER_POOL_PAGES
 PBXT_STATISTICS
 INNODB_CMP
 INNODB_RSEG
-XTRADB_ENHANCEMENTS
+INNODB_INDEX_STATS
 INNODB_BUFFER_POOL_PAGES_INDEX
 XTRADB_ADMIN_COMMAND
 INNODB_TRX
 INNODB_SYS_TABLES
 INNODB_LOCK_WAITS
-INNODB_SYS_STATS
+INNODB_BUFFER_POOL_STATS
 INNODB_LOCKS
 INNODB_CMPMEM
 INNODB_TABLE_STATS
@@ -52,7 +52,10 @@ INNODB_SYS_INDEXES
 INNODB_CMP_RESET
 INNODB_BUFFER_POOL_PAGES_BLOB
 INNODB_CMPMEM_RESET
-INNODB_INDEX_STATS
+INNODB_BUFFER_PAGE
+INNODB_CHANGED_PAGES
+INNODB_SYS_STATS
+INNODB_BUFFER_PAGE_LRU
 SELECT t.table_name, c1.column_name
 FROM information_schema.tables t
 INNER JOIN
@@ -105,13 +108,13 @@ INNODB_BUFFER_POOL_PAGES	page_type
 PBXT_STATISTICS	ID
 INNODB_CMP	page_size
 INNODB_RSEG	rseg_id
-XTRADB_ENHANCEMENTS	name
+INNODB_INDEX_STATS	table_schema
 INNODB_BUFFER_POOL_PAGES_INDEX	index_id
 XTRADB_ADMIN_COMMAND	result_message
 INNODB_TRX	trx_id
 INNODB_SYS_TABLES	SCHEMA
 INNODB_LOCK_WAITS	requesting_trx_id
-INNODB_SYS_STATS	INDEX_ID
+INNODB_BUFFER_POOL_STATS	POOL_SIZE
 INNODB_LOCKS	lock_id
 INNODB_CMPMEM	page_size
 INNODB_TABLE_STATS	table_schema
@@ -119,7 +122,10 @@ INNODB_SYS_INDEXES	TABLE_ID
 INNODB_CMP_RESET	page_size
 INNODB_BUFFER_POOL_PAGES_BLOB	space_id
 INNODB_CMPMEM_RESET	page_size
-INNODB_INDEX_STATS	table_schema
+INNODB_BUFFER_PAGE	BLOCK_ID
+INNODB_CHANGED_PAGES	space_id
+INNODB_SYS_STATS	INDEX_ID
+INNODB_BUFFER_PAGE_LRU	LRU_POSITION
 SELECT t.table_name, c1.column_name
 FROM information_schema.tables t
 INNER JOIN
@@ -172,13 +178,13 @@ INNODB_BUFFER_POOL_PAGES	page_type
 PBXT_STATISTICS	ID
 INNODB_CMP	page_size
 INNODB_RSEG	rseg_id
-XTRADB_ENHANCEMENTS	name
+INNODB_INDEX_STATS	table_schema
 INNODB_BUFFER_POOL_PAGES_INDEX	index_id
 XTRADB_ADMIN_COMMAND	result_message
 INNODB_TRX	trx_id
 INNODB_SYS_TABLES	SCHEMA
 INNODB_LOCK_WAITS	requesting_trx_id
-INNODB_SYS_STATS	INDEX_ID
+INNODB_BUFFER_POOL_STATS	POOL_SIZE
 INNODB_LOCKS	lock_id
 INNODB_CMPMEM	page_size
 INNODB_TABLE_STATS	table_schema
@@ -186,7 +192,10 @@ INNODB_SYS_INDEXES	TABLE_ID
 INNODB_CMP_RESET	page_size
 INNODB_BUFFER_POOL_PAGES_BLOB	space_id
 INNODB_CMPMEM_RESET	page_size
-INNODB_INDEX_STATS	table_schema
+INNODB_BUFFER_PAGE	BLOCK_ID
+INNODB_CHANGED_PAGES	space_id
+INNODB_SYS_STATS	INDEX_ID
+INNODB_BUFFER_PAGE_LRU	LRU_POSITION
 select 1 as f1 from information_schema.tables  where "CHARACTER_SETS"=
 (select cast(table_name as char)  from information_schema.tables
 order by table_name limit 1) limit 1;
@@ -220,9 +229,13 @@ FILES	information_schema.FILES	1
 GLOBAL_STATUS	information_schema.GLOBAL_STATUS	1
 GLOBAL_VARIABLES	information_schema.GLOBAL_VARIABLES	1
 INDEX_STATISTICS	information_schema.INDEX_STATISTICS	1
+INNODB_BUFFER_PAGE	information_schema.INNODB_BUFFER_PAGE	1
+INNODB_BUFFER_PAGE_LRU	information_schema.INNODB_BUFFER_PAGE_LRU	1
 INNODB_BUFFER_POOL_PAGES	information_schema.INNODB_BUFFER_POOL_PAGES	1
 INNODB_BUFFER_POOL_PAGES_BLOB	information_schema.INNODB_BUFFER_POOL_PAGES_BLOB	1
 INNODB_BUFFER_POOL_PAGES_INDEX	information_schema.INNODB_BUFFER_POOL_PAGES_INDEX	1
+INNODB_BUFFER_POOL_STATS	information_schema.INNODB_BUFFER_POOL_STATS	1
+INNODB_CHANGED_PAGES	information_schema.INNODB_CHANGED_PAGES	1
 INNODB_CMP	information_schema.INNODB_CMP	1
 INNODB_CMPMEM	information_schema.INNODB_CMPMEM	1
 INNODB_CMPMEM_RESET	information_schema.INNODB_CMPMEM_RESET	1
@@ -258,7 +271,6 @@ TRIGGERS	information_schema.TRIGGERS	1
 USER_PRIVILEGES	information_schema.USER_PRIVILEGES	1
 USER_STATISTICS	information_schema.USER_STATISTICS	1
 VIEWS	information_schema.VIEWS	1
-XTRADB_ENHANCEMENTS	information_schema.XTRADB_ENHANCEMENTS	1
 Database: information_schema
 +---------------------------------------+
 |                Tables                 |
@@ -300,13 +312,13 @@ Database: information_schema
 | PBXT_STATISTICS                       |
 | INNODB_CMP                            |
 | INNODB_RSEG                           |
-| XTRADB_ENHANCEMENTS                   |
+| INNODB_INDEX_STATS                    |
 | INNODB_BUFFER_POOL_PAGES_INDEX        |
 | XTRADB_ADMIN_COMMAND                  |
 | INNODB_TRX                            |
 | INNODB_SYS_TABLES                     |
 | INNODB_LOCK_WAITS                     |
-| INNODB_SYS_STATS                      |
+| INNODB_BUFFER_POOL_STATS              |
 | INNODB_LOCKS                          |
 | INNODB_CMPMEM                         |
 | INNODB_TABLE_STATS                    |
@@ -314,7 +326,10 @@ Database: information_schema
 | INNODB_CMP_RESET                      |
 | INNODB_BUFFER_POOL_PAGES_BLOB         |
 | INNODB_CMPMEM_RESET                   |
-| INNODB_INDEX_STATS                    |
+| INNODB_BUFFER_PAGE                    |
+| INNODB_CHANGED_PAGES                  |
+| INNODB_SYS_STATS                      |
+| INNODB_BUFFER_PAGE_LRU                |
 +---------------------------------------+
 Database: INFORMATION_SCHEMA
 +---------------------------------------+
@@ -357,13 +372,13 @@ Database: INFORMATION_SCHEMA
 | PBXT_STATISTICS                       |
 | INNODB_CMP                            |
 | INNODB_RSEG                           |
-| XTRADB_ENHANCEMENTS                   |
+| INNODB_INDEX_STATS                    |
 | INNODB_BUFFER_POOL_PAGES_INDEX        |
 | XTRADB_ADMIN_COMMAND                  |
 | INNODB_TRX                            |
 | INNODB_SYS_TABLES                     |
 | INNODB_LOCK_WAITS                     |
-| INNODB_SYS_STATS                      |
+| INNODB_BUFFER_POOL_STATS              |
 | INNODB_LOCKS                          |
 | INNODB_CMPMEM                         |
 | INNODB_TABLE_STATS                    |
@@ -371,7 +386,10 @@ Database: INFORMATION_SCHEMA
 | INNODB_CMP_RESET                      |
 | INNODB_BUFFER_POOL_PAGES_BLOB         |
 | INNODB_CMPMEM_RESET                   |
-| INNODB_INDEX_STATS                    |
+| INNODB_BUFFER_PAGE                    |
+| INNODB_CHANGED_PAGES                  |
+| INNODB_SYS_STATS                      |
+| INNODB_BUFFER_PAGE_LRU                |
 +---------------------------------------+
 Wildcard: inf_rmation_schema
 +--------------------+
@@ -381,5 +399,5 @@ Wildcard: inf_rmation_schema
 +--------------------+
 SELECT table_schema, count(*) FROM information_schema.TABLES WHERE table_schema IN ('mysql', 'INFORMATION_SCHEMA', 'test', 'mysqltest') AND table_name<>'ndb_binlog_index' AND table_name<>'ndb_apply_status' GROUP BY TABLE_SCHEMA;
 table_schema	count(*)
-information_schema	52
+information_schema	50
 mysql	22
diff --git a/mysql-test/r/innodb.result b/mysql-test/r/innodb.result
index 718e363adb7..a34fc94fa99 100644
--- a/mysql-test/r/innodb.result
+++ b/mysql-test/r/innodb.result
@@ -3198,7 +3198,7 @@ c21 CHAR(255), c22 CHAR(255), c23 CHAR(255), c24 CHAR(255),
 c25 CHAR(255), c26 CHAR(255), c27 CHAR(255), c28 CHAR(255),
 c29 CHAR(255), c30 CHAR(255), c31 CHAR(255), c32 CHAR(255)
 ) ENGINE = InnoDB;
-ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
+ERROR 42000: Row size too large (> 8126). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
 DROP TABLE IF EXISTS t1;
 Warnings:
 Note	1051	Unknown table 't1'
diff --git a/mysql-test/r/openssl_1.result b/mysql-test/r/openssl_1.result
index d87aeefbc34..9d8e4229445 100644
--- a/mysql-test/r/openssl_1.result
+++ b/mysql-test/r/openssl_1.result
@@ -44,9 +44,9 @@ ERROR 42000: DELETE command denied to user 'ssl_user4'@'localhost' for table 't1
 drop user ssl_user1@localhost, ssl_user2@localhost,
 ssl_user3@localhost, ssl_user4@localhost, ssl_user5@localhost;
 drop table t1;
-mysqltest: Could not open connection 'default': 2026 SSL error: ASN: bad other signature confirmation
-mysqltest: Could not open connection 'default': 2026 SSL error: ASN: bad other signature confirmation
-mysqltest: Could not open connection 'default': 2026 SSL error: ASN: bad other signature confirmation
+mysqltest: Could not open connection 'default': 2026 SSL connection error: xxxx
+mysqltest: Could not open connection 'default': 2026 SSL connection error: xxxx
+mysqltest: Could not open connection 'default': 2026 SSL connection error: xxxx
 SSL error: Unable to get private key from ''
 mysqltest: Could not open connection 'default': 2026 SSL connection error
 SSL error: Unable to get certificate from ''
diff --git a/mysql-test/suite/federated/federated_archive.test b/mysql-test/suite/federated/federated_archive.test
index 1bde23889be..b35b82c6fa6 100644
--- a/mysql-test/suite/federated/federated_archive.test
+++ b/mysql-test/suite/federated/federated_archive.test
@@ -1,5 +1,5 @@
 source include/have_archive.inc;
-source federated.inc;
+source suite/federated/include/federated.inc;
 
 
 connection slave;
@@ -54,5 +54,5 @@ connection slave;
 DROP TABLE federated.archive_table;
 
 
-source federated_cleanup.inc;
+source suite/federated/include/federated_cleanup.inc;
 
diff --git a/mysql-test/suite/federated/federated_bug_13118.test b/mysql-test/suite/federated/federated_bug_13118.test
index fad6be75dac..78115a7959f 100644
--- a/mysql-test/suite/federated/federated_bug_13118.test
+++ b/mysql-test/suite/federated/federated_bug_13118.test
@@ -1,4 +1,4 @@
-source federated.inc;
+source suite/federated/include/federated.inc;
 
 connection slave;
 --disable_warnings
@@ -37,5 +37,5 @@ connection slave;
 DROP TABLE federated.bug_13118_table;
 
 
-source federated_cleanup.inc;
+source suite/federated/include/federated_cleanup.inc;
 
diff --git a/mysql-test/suite/federated/federated_bug_25714.test b/mysql-test/suite/federated/federated_bug_25714.test
index 82745b2a094..0d5ecb7d99f 100644
--- a/mysql-test/suite/federated/federated_bug_25714.test
+++ b/mysql-test/suite/federated/federated_bug_25714.test
@@ -4,7 +4,7 @@ if (`select LENGTH("$MYSQL_BUG25714") = 0`)
   skip Need bug25714 test program;
 }
 
-source federated.inc;
+source suite/federated/include/federated.inc;
 
 connection master;
 # Disable concurrent inserts to avoid test failures when reading
@@ -59,4 +59,4 @@ SET @@GLOBAL.CONCURRENT_INSERT= @OLD_SLAVE_CONCURRENT_INSERT;
 
 
 
-source federated_cleanup.inc;
+source suite/federated/include/federated_cleanup.inc;
diff --git a/mysql-test/suite/federated/federated_bug_32426.test b/mysql-test/suite/federated/federated_bug_32426.test
index 254dfaa610a..2615adbc1bc 100644
--- a/mysql-test/suite/federated/federated_bug_32426.test
+++ b/mysql-test/suite/federated/federated_bug_32426.test
@@ -1,4 +1,4 @@
-source federated.inc;
+source include/federated.inc;
 
 --echo #
 --echo # Bug #32426: FEDERATED query returns corrupt results for ORDER BY 
@@ -21,4 +21,4 @@ DROP TABLE federated.t1;
 
 connection default;
 
-source federated_cleanup.inc;
+source include/federated_cleanup.inc;
diff --git a/mysql-test/suite/federated/federated_bug_35333.test b/mysql-test/suite/federated/federated_bug_35333.test
index 8bce63c34e5..6487e10e018 100644
--- a/mysql-test/suite/federated/federated_bug_35333.test
+++ b/mysql-test/suite/federated/federated_bug_35333.test
@@ -9,7 +9,7 @@
 --echo # to complete while still indicating a problem. This fix applies to any non-fatal system
 --echo # error that occurs during a query against I_S.TABLES.de
 
---source federated.inc
+--source suite/federated/include/federated.inc
 
 --disable_warnings
 # Federated database exists
@@ -74,4 +74,4 @@ DROP TABLE t1;
 --echo # Cleanup
 --echo #
 
---source federated_cleanup.inc
+--source suite/federated/include/federated_cleanup.inc
diff --git a/mysql-test/suite/federated/federated_bug_585688.test b/mysql-test/suite/federated/federated_bug_585688.test
index 6566125c419..02fec2c985c 100644
--- a/mysql-test/suite/federated/federated_bug_585688.test
+++ b/mysql-test/suite/federated/federated_bug_585688.test
@@ -1,4 +1,4 @@
-source federated.inc;
+source include/federated.inc;
 
 --echo #
 --echo # Bug #585688: maridb crashes in federatedx code
@@ -49,5 +49,5 @@ DROP TABLE federated.t1;
 
 connection default;
 
-source federated_cleanup.inc;
+source include/federated_cleanup.inc;
 
diff --git a/mysql-test/suite/federated/federated_debug.test b/mysql-test/suite/federated/federated_debug.test
index d63c1007088..a5707059cf4 100644
--- a/mysql-test/suite/federated/federated_debug.test
+++ b/mysql-test/suite/federated/federated_debug.test
@@ -1,6 +1,6 @@
 --source include/have_debug.inc
 --source include/long_test.inc
---source federated.inc
+--source include/federated.inc
 
 --echo #
 --echo # Bug#47525: MySQL crashed (Federated)
@@ -37,4 +37,4 @@ DROP TABLE t1;
 
 connection default;
 --echo # Federated cleanup
-source federated_cleanup.inc;
+source suite/federated/include/federated_cleanup.inc;
diff --git a/mysql-test/suite/federated/federated_innodb.test b/mysql-test/suite/federated/federated_innodb.test
index 278c5b18661..9212ba12b81 100644
--- a/mysql-test/suite/federated/federated_innodb.test
+++ b/mysql-test/suite/federated/federated_innodb.test
@@ -4,7 +4,7 @@
 # See Bug #40645 Test main.federated_innodb does not always clean up after itself
 
 source include/have_innodb.inc;
-source federated.inc;
+source suite/federated/include/federated.inc;
 
 #
 # Bug#25513 Federated transaction failures
@@ -36,4 +36,4 @@ connection slave;
 drop table federated.t1;
 
 
-source federated_cleanup.inc;
+source suite/federated/include/federated_cleanup.inc;
diff --git a/mysql-test/suite/federated/federated_partition.test b/mysql-test/suite/federated/federated_partition.test
index 13f26ecd756..ef1e27ec505 100644
--- a/mysql-test/suite/federated/federated_partition.test
+++ b/mysql-test/suite/federated/federated_partition.test
@@ -4,7 +4,7 @@
 source have_federatedx.inc;
 source include/have_partition.inc;
 source include/have_innodb.inc;
-source federated.inc;
+source include/federated.inc;
 
 disable_warnings;
 drop table if exists t1;
@@ -50,4 +50,4 @@ drop table federated.t1_2;
 
 --echo End of 5.1 tests
 
-source federated_cleanup.inc;
+source include/federated_cleanup.inc;
diff --git a/mysql-test/suite/federated/federated_server.test b/mysql-test/suite/federated/federated_server.test
index 807b6397ce5..abf8c79c274 100644
--- a/mysql-test/suite/federated/federated_server.test
+++ b/mysql-test/suite/federated/federated_server.test
@@ -4,7 +4,7 @@
 # Slow test, don't run during staging part
 -- source include/not_staging.inc
 -- source include/big_test.inc
--- source federated.inc
+-- source include/federated.inc
 
 connection slave;
 create database first_db;
@@ -343,4 +343,4 @@ drop procedure p1;
 drop server if exists s;
 
 
-source federated_cleanup.inc;
+source suite/federated/include/federated_cleanup.inc;
diff --git a/mysql-test/suite/federated/federated_transactions.test b/mysql-test/suite/federated/federated_transactions.test
index 637df45a52a..480f9a6ba27 100644
--- a/mysql-test/suite/federated/federated_transactions.test
+++ b/mysql-test/suite/federated/federated_transactions.test
@@ -1,6 +1,6 @@
 source have_federatedx.inc;
 source include/have_innodb.inc;
-source federated.inc;
+source suite/federated/include/federated.inc;
 
 connection slave;
 DROP TABLE IF EXISTS federated.t1;
@@ -36,4 +36,4 @@ INSERT INTO federated.t1 (id, name) VALUES (6, 'fig');
 SELECT * FROM federated.t1;
 DELETE FROM federated.t1;
 
-source federated_cleanup.inc;
+source suite/federated/include/federated_cleanup.inc;
diff --git a/mysql-test/suite/federated/federatedx.test b/mysql-test/suite/federated/federatedx.test
index cabcf0cea1b..d1f05d52a4b 100644
--- a/mysql-test/suite/federated/federatedx.test
+++ b/mysql-test/suite/federated/federatedx.test
@@ -6,7 +6,7 @@
 
 # should work with embedded server after mysqltest is fixed
 --source include/not_embedded.inc
---source federated.inc
+--source include/federated.inc
 --source have_federatedx.inc
 
 connection default;
@@ -2001,4 +2001,4 @@ connection slave;
 SET @@GLOBAL.CONCURRENT_INSERT= @OLD_SLAVE_CONCURRENT_INSERT;
 
 connection default;
-source federated_cleanup.inc;
+source suite/federated/include/federated_cleanup.inc;
diff --git a/mysql-test/suite/federated/federated.inc b/mysql-test/suite/federated/include/federated.inc
index 17410846604..17410846604 100644
--- a/mysql-test/suite/federated/federated.inc
+++ b/mysql-test/suite/federated/include/federated.inc
diff --git a/mysql-test/suite/federated/federated_cleanup.inc b/mysql-test/suite/federated/include/federated_cleanup.inc
index 06fd7f6737a..06fd7f6737a 100644
--- a/mysql-test/suite/federated/federated_cleanup.inc
+++ b/mysql-test/suite/federated/include/federated_cleanup.inc
diff --git a/mysql-test/suite/innodb/r/innodb_misc1.result b/mysql-test/suite/innodb/r/innodb_misc1.result
index 214e79de985..461cca349bc 100644
--- a/mysql-test/suite/innodb/r/innodb_misc1.result
+++ b/mysql-test/suite/innodb/r/innodb_misc1.result
@@ -774,7 +774,7 @@ c21 CHAR(255), c22 CHAR(255), c23 CHAR(255), c24 CHAR(255),
 c25 CHAR(255), c26 CHAR(255), c27 CHAR(255), c28 CHAR(255),
 c29 CHAR(255), c30 CHAR(255), c31 CHAR(255), c32 CHAR(255)
 ) ENGINE = InnoDB;
-ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
+ERROR 42000: Row size too large (> 8126). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
 DROP TABLE IF EXISTS t1;
 Warnings:
 Note	1051	Unknown table 't1'
diff --git a/mysql-test/suite/innodb_plugin/r/innodb-index.result b/mysql-test/suite/innodb_plugin/r/innodb-index.result
index 37bd81e5ec6..bf7c382327b 100644
--- a/mysql-test/suite/innodb_plugin/r/innodb-index.result
+++ b/mysql-test/suite/innodb_plugin/r/innodb-index.result
@@ -1096,7 +1096,7 @@ PRIMARY KEY (b(10), a), INDEX (c(10))
 INSERT INTO bug12547647 VALUES (5,repeat('khdfo5AlOq',1900),repeat('g',7731));
 COMMIT;
 UPDATE bug12547647 SET c = REPEAT('b',16928);
-ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
+ERROR 42000: Row size too large (> 8126). Changing some columns to TEXT or BLOB may help. In current row format, BLOB prefix of 0 bytes is stored inline.
 DROP TABLE bug12547647;
 SET @r=REPEAT('a',500);
 CREATE TABLE t1(a INT,
diff --git a/mysql-test/suite/innodb_plugin/r/innodb-zip.result b/mysql-test/suite/innodb_plugin/r/innodb-zip.result
index 16947bf16dc..5ee0854367a 100644
--- a/mysql-test/suite/innodb_plugin/r/innodb-zip.result
+++ b/mysql-test/suite/innodb_plugin/r/innodb-zip.result
@@ -125,12 +125,12 @@ CREATE TABLE t1(
 c TEXT NOT NULL, d TEXT NOT NULL,
 PRIMARY KEY (c(767),d(767)))
 ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=1 CHARSET=ASCII;
-ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
+ERROR 42000: Row size too large (> 8126). Changing some columns to TEXT or BLOB may help. In current row format, BLOB prefix of 0 bytes is stored inline.
 CREATE TABLE t1(
 c TEXT NOT NULL, d TEXT NOT NULL,
 PRIMARY KEY (c(767),d(767)))
 ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2 CHARSET=ASCII;
-ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
+ERROR 42000: Row size too large (> 8126). Changing some columns to TEXT or BLOB may help. In current row format, BLOB prefix of 0 bytes is stored inline.
 CREATE TABLE t1(
 c TEXT NOT NULL, d TEXT NOT NULL,
 PRIMARY KEY (c(767),d(767)))
@@ -138,7 +138,7 @@ ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=4 CHARSET=ASCII;
 drop table t1;
 CREATE TABLE t1(c TEXT, PRIMARY KEY (c(440)))
 ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=1 CHARSET=ASCII;
-ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
+ERROR 42000: Row size too large (> 8126). Changing some columns to TEXT or BLOB may help. In current row format, BLOB prefix of 0 bytes is stored inline.
 CREATE TABLE t1(c TEXT, PRIMARY KEY (c(438)))
 ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=1 CHARSET=ASCII;
 INSERT INTO t1 VALUES(REPEAT('A',512)),(REPEAT('B',512));
diff --git a/mysql-test/suite/innodb_plugin/r/innodb.result b/mysql-test/suite/innodb_plugin/r/innodb.result
index 87dee7dc6e1..0fbe962bab9 100644
--- a/mysql-test/suite/innodb_plugin/r/innodb.result
+++ b/mysql-test/suite/innodb_plugin/r/innodb.result
@@ -3151,7 +3151,7 @@ c21 CHAR(255), c22 CHAR(255), c23 CHAR(255), c24 CHAR(255),
 c25 CHAR(255), c26 CHAR(255), c27 CHAR(255), c28 CHAR(255),
 c29 CHAR(255), c30 CHAR(255), c31 CHAR(255), c32 CHAR(255)
 ) ENGINE = InnoDB;
-ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
+ERROR 42000: Row size too large (> 8126). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
 DROP TABLE IF EXISTS t1;
 Warnings:
 Note	1051	Unknown table 't1'
diff --git a/mysql-test/suite/innodb_plugin/r/innodb_bug53591.result b/mysql-test/suite/innodb_plugin/r/innodb_bug53591.result
index cf226464a4b..b0196318801 100644
--- a/mysql-test/suite/innodb_plugin/r/innodb_bug53591.result
+++ b/mysql-test/suite/innodb_plugin/r/innodb_bug53591.result
@@ -8,7 +8,7 @@ ERROR HY000: Too big row
 SHOW WARNINGS;
 Level	Code	Message
 Error	139	Too big row
-Error	1118	Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
+Error	1118	Row size too large (> 8126). Changing some columns to TEXT or BLOB may help. In current row format, BLOB prefix of 0 bytes is stored inline.
 DROP TABLE bug53591;
 SET GLOBAL innodb_file_format=Antelope;
 SET GLOBAL innodb_file_per_table=0;
diff --git a/mysql-test/suite/innodb_plugin/r/innodb_information_schema_buffer.result b/mysql-test/suite/innodb_plugin/r/innodb_information_schema_buffer.result
new file mode 100644
index 00000000000..bfda2c72757
--- /dev/null
+++ b/mysql-test/suite/innodb_plugin/r/innodb_information_schema_buffer.result
@@ -0,0 +1,127 @@
+SELECT * FROM INFORMATION_SCHEMA.INNODB_BUFFER_POOL_STATS;
+SELECT count(*) FROM INFORMATION_SCHEMA.INNODB_BUFFER_POOL_STATS;
+SELECT * FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE;
+SELECT COUNT(*) FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE;
+CREATE TABLE infoschema_buffer_test (col1 INT) ENGINE = INNODB;
+INSERT INTO infoschema_buffer_test VALUES(9);
+SELECT TABLE_NAME, INDEX_NAME, NUMBER_RECORDS, DATA_SIZE, PAGE_STATE, PAGE_TYPE
+FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
+WHERE TABLE_NAME like "%infoschema_buffer_test"
+	and PAGE_STATE="file_page" and PAGE_TYPE="index";
+TABLE_NAME	INDEX_NAME	NUMBER_RECORDS	DATA_SIZE	PAGE_STATE	PAGE_TYPE
+test/infoschema_buffer_test	GEN_CLUST_INDEX	1	29	FILE_PAGE	INDEX
+INSERT INTO infoschema_buffer_test VALUES(19);
+SELECT TABLE_NAME, INDEX_NAME, NUMBER_RECORDS, DATA_SIZE, PAGE_STATE, PAGE_TYPE
+FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
+WHERE TABLE_NAME like "%infoschema_buffer_test"
+and PAGE_STATE="file_page" and PAGE_TYPE="index";
+TABLE_NAME	INDEX_NAME	NUMBER_RECORDS	DATA_SIZE	PAGE_STATE	PAGE_TYPE
+test/infoschema_buffer_test	GEN_CLUST_INDEX	2	58	FILE_PAGE	INDEX
+CREATE INDEX idx ON infoschema_buffer_test(col1);
+SELECT TABLE_NAME, INDEX_NAME, NUMBER_RECORDS, DATA_SIZE, PAGE_STATE, PAGE_TYPE
+FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
+WHERE TABLE_NAME like "%infoschema_buffer_test"
+and PAGE_STATE="file_page" and INDEX_NAME = "idx" and PAGE_TYPE="index";
+TABLE_NAME	INDEX_NAME	NUMBER_RECORDS	DATA_SIZE	PAGE_STATE	PAGE_TYPE
+test/infoschema_buffer_test	idx	2	32	FILE_PAGE	INDEX
+DROP TABLE infoschema_buffer_test;
+SELECT TABLE_NAME, INDEX_NAME, NUMBER_RECORDS, DATA_SIZE, PAGE_STATE, PAGE_TYPE
+FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
+WHERE TABLE_NAME like "%infoschema_buffer_test";
+TABLE_NAME	INDEX_NAME	NUMBER_RECORDS	DATA_SIZE	PAGE_STATE	PAGE_TYPE
+CREATE TABLE infoschema_parent (id INT NOT NULL, PRIMARY KEY (id))
+ENGINE=INNODB;
+CREATE TABLE infoschema_child (id INT, parent_id INT, INDEX par_ind (parent_id),
+FOREIGN KEY (parent_id)
+REFERENCES infoschema_parent(id)
+ON DELETE CASCADE)
+ENGINE=INNODB;
+SELECT count(*)
+FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
+WHERE TABLE_NAME like "%infoschema_child" and PAGE_STATE="file_page"
+and PAGE_TYPE="index";
+count(*)
+2
+DROP TABLE infoschema_child;
+DROP TABLE infoschema_parent;
+show create table information_schema.innodb_buffer_page;
+Table	Create Table
+INNODB_BUFFER_PAGE	CREATE TEMPORARY TABLE `INNODB_BUFFER_PAGE` (
+  `BLOCK_ID` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `SPACE` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `PAGE_NUMBER` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `PAGE_TYPE` varchar(64) DEFAULT NULL,
+  `FLUSH_TYPE` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `FIX_COUNT` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `IS_HASHED` varchar(3) DEFAULT NULL,
+  `NEWEST_MODIFICATION` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `OLDEST_MODIFICATION` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `ACCESS_TIME` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `TABLE_NAME` varchar(1024) DEFAULT NULL,
+  `INDEX_NAME` varchar(1024) DEFAULT NULL,
+  `NUMBER_RECORDS` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `DATA_SIZE` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `COMPRESSED_SIZE` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `PAGE_STATE` varchar(64) DEFAULT NULL,
+  `IO_FIX` varchar(64) DEFAULT NULL,
+  `IS_OLD` varchar(3) DEFAULT NULL,
+  `FREE_PAGE_CLOCK` bigint(21) unsigned NOT NULL DEFAULT '0'
+) ENGINE=MEMORY DEFAULT CHARSET=utf8
+show create table information_schema.innodb_buffer_page_lru;
+Table	Create Table
+INNODB_BUFFER_PAGE_LRU	CREATE TEMPORARY TABLE `INNODB_BUFFER_PAGE_LRU` (
+  `LRU_POSITION` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `SPACE` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `PAGE_NUMBER` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `PAGE_TYPE` varchar(64) DEFAULT NULL,
+  `FLUSH_TYPE` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `FIX_COUNT` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `IS_HASHED` varchar(3) DEFAULT NULL,
+  `NEWEST_MODIFICATION` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `OLDEST_MODIFICATION` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `ACCESS_TIME` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `TABLE_NAME` varchar(1024) DEFAULT NULL,
+  `INDEX_NAME` varchar(1024) DEFAULT NULL,
+  `NUMBER_RECORDS` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `DATA_SIZE` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `COMPRESSED_SIZE` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `COMPRESSED` varchar(3) DEFAULT NULL,
+  `IO_FIX` varchar(64) DEFAULT NULL,
+  `IS_OLD` varchar(3) DEFAULT NULL,
+  `FREE_PAGE_CLOCK` bigint(21) unsigned NOT NULL DEFAULT '0'
+) ENGINE=MEMORY DEFAULT CHARSET=utf8
+show create table information_schema.innodb_buffer_pool_stats;
+Table	Create Table
+INNODB_BUFFER_POOL_STATS	CREATE TEMPORARY TABLE `INNODB_BUFFER_POOL_STATS` (
+  `POOL_SIZE` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `FREE_BUFFERS` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `DATABASE_PAGES` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `OLD_DATABASE_PAGES` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `MODIFIED_DATABASE_PAGES` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `PENDING_DECOMPRESS` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `PENDING_READS` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `PENDING_FLUSH_LRU` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `PENDING_FLUSH_LIST` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `PAGES_MADE_YOUNG` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `PAGES_NOT_MADE_YOUNG` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `PAGES_MADE_YOUNG_RATE` double NOT NULL DEFAULT '0',
+  `PAGES_MADE_NOT_YOUNG_RATE` double NOT NULL DEFAULT '0',
+  `NUMBER_PAGES_READ` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `NUMBER_PAGES_CREATED` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `NUMBER_PAGES_WRITTEN` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `PAGES_READ_RATE` double NOT NULL DEFAULT '0',
+  `PAGES_CREATE_RATE` double NOT NULL DEFAULT '0',
+  `PAGES_WRITTEN_RATE` double NOT NULL DEFAULT '0',
+  `NUMBER_PAGES_GET` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `HIT_RATE` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `YOUNG_MAKE_PER_THOUSAND_GETS` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `NOT_YOUNG_MAKE_PER_THOUSAND_GETS` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `NUMBER_PAGES_READ_AHEAD` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `NUMBER_READ_AHEAD_EVICTED` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `READ_AHEAD_RATE` double NOT NULL DEFAULT '0',
+  `READ_AHEAD_EVICTED_RATE` double NOT NULL DEFAULT '0',
+  `LRU_IO_TOTAL` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `LRU_IO_CURRENT` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `UNCOMPRESS_TOTAL` bigint(21) unsigned NOT NULL DEFAULT '0',
+  `UNCOMPRESS_CURRENT` bigint(21) unsigned NOT NULL DEFAULT '0'
+) ENGINE=MEMORY DEFAULT CHARSET=utf8
diff --git a/mysql-test/suite/innodb_plugin/r/innodb_misc1.result b/mysql-test/suite/innodb_plugin/r/innodb_misc1.result
index 5b1774c6e99..81c65c34554 100644
--- a/mysql-test/suite/innodb_plugin/r/innodb_misc1.result
+++ b/mysql-test/suite/innodb_plugin/r/innodb_misc1.result
@@ -774,7 +774,7 @@ c21 CHAR(255), c22 CHAR(255), c23 CHAR(255), c24 CHAR(255),
 c25 CHAR(255), c26 CHAR(255), c27 CHAR(255), c28 CHAR(255),
 c29 CHAR(255), c30 CHAR(255), c31 CHAR(255), c32 CHAR(255)
 ) ENGINE = InnoDB;
-ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
+ERROR 42000: Row size too large (> 8126). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
 SET innodb_strict_mode=OFF;
 DROP TABLE IF EXISTS t1;
 Warnings:
diff --git a/mysql-test/suite/innodb_plugin/t/innodb_information_schema_buffer.test b/mysql-test/suite/innodb_plugin/t/innodb_information_schema_buffer.test
new file mode 100644
index 00000000000..e0543a954f9
--- /dev/null
+++ b/mysql-test/suite/innodb_plugin/t/innodb_information_schema_buffer.test
@@ -0,0 +1,76 @@
+# Exercise the code path for INFORMATION_SCHEMA.INNODB_BUFFER_POOL_STATS
+# and INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
+
+-- source include/have_innodb_plugin.inc
+
+-- disable_result_log
+SELECT * FROM INFORMATION_SCHEMA.INNODB_BUFFER_POOL_STATS;
+
+# How many buffer pools we have
+SELECT count(*) FROM INFORMATION_SCHEMA.INNODB_BUFFER_POOL_STATS;
+
+SELECT * FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE;
+
+# This gives the over all buffer pool size
+SELECT COUNT(*) FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE;
+
+-- enable_result_log
+
+# Create a table and check its page info behave correctly in the pool
+CREATE TABLE infoschema_buffer_test (col1 INT) ENGINE = INNODB;
+
+INSERT INTO infoschema_buffer_test VALUES(9);
+
+# We should be able to see this table in the buffer pool if we check
+# right away
+SELECT TABLE_NAME, INDEX_NAME, NUMBER_RECORDS, DATA_SIZE, PAGE_STATE, PAGE_TYPE
+FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
+WHERE TABLE_NAME like "%infoschema_buffer_test"
+	and PAGE_STATE="file_page" and PAGE_TYPE="index";
+
+# The NUMBER_RECORDS and DATA_SIZE should check with each insertion
+INSERT INTO infoschema_buffer_test VALUES(19);
+
+SELECT TABLE_NAME, INDEX_NAME, NUMBER_RECORDS, DATA_SIZE, PAGE_STATE, PAGE_TYPE
+FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
+WHERE TABLE_NAME like "%infoschema_buffer_test"
+and PAGE_STATE="file_page" and PAGE_TYPE="index";
+
+CREATE INDEX idx ON infoschema_buffer_test(col1);
+
+SELECT TABLE_NAME, INDEX_NAME, NUMBER_RECORDS, DATA_SIZE, PAGE_STATE, PAGE_TYPE
+FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
+WHERE TABLE_NAME like "%infoschema_buffer_test"
+and PAGE_STATE="file_page" and INDEX_NAME = "idx" and PAGE_TYPE="index";
+
+
+# Check the buffer after dropping the table
+DROP TABLE infoschema_buffer_test;
+
+SELECT TABLE_NAME, INDEX_NAME, NUMBER_RECORDS, DATA_SIZE, PAGE_STATE, PAGE_TYPE
+FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
+WHERE TABLE_NAME like "%infoschema_buffer_test";
+
+# Do one more test
+#--replace_regex /'*[0-9]*'/'NUM'/
+CREATE TABLE infoschema_parent (id INT NOT NULL, PRIMARY KEY (id))
+ENGINE=INNODB;
+
+CREATE TABLE infoschema_child (id INT, parent_id INT, INDEX par_ind (parent_id),
+			       FOREIGN KEY (parent_id)
+			       REFERENCES infoschema_parent(id)
+			       ON DELETE CASCADE)
+ENGINE=INNODB;
+
+SELECT count(*)
+FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
+WHERE TABLE_NAME like "%infoschema_child" and PAGE_STATE="file_page"
+and PAGE_TYPE="index";
+
+DROP TABLE infoschema_child;
+DROP TABLE infoschema_parent;
+
+show create table information_schema.innodb_buffer_page;
+show create table information_schema.innodb_buffer_page_lru;
+show create table information_schema.innodb_buffer_pool_stats;
+
diff --git a/mysql-test/t/openssl_1.test b/mysql-test/t/openssl_1.test
index 8051dd0e866..74e2bd65717 100644
--- a/mysql-test/t/openssl_1.test
+++ b/mysql-test/t/openssl_1.test
@@ -74,25 +74,31 @@ drop table t1;
 #
 --exec echo "this query should not execute;" > $MYSQLTEST_VARDIR/tmp/test.sql
 # Handle that openssl gives different error messages from YaSSL.
---replace_regex /error:00000005:lib\(0\):func\(0\):DH lib/ASN: bad other signature confirmation/
+#--replace_regex /error:00000005:lib\(0\):func\(0\):DH lib/ASN: bad other signature confirmation/
+--replace_regex /2026 SSL .*error.*/2026 SSL connection error: xxxx/
 --error 1
 --exec $MYSQL_TEST --ssl-ca=$MYSQL_TEST_DIR/std_data/untrusted-cacert.pem --max-connect-retries=1 < $MYSQLTEST_VARDIR/tmp/test.sql 2>&1
+--echo
 
 #
 # Test that we can't open connection to server if we are using
 # a blank ca
 #
---replace_regex /error:00000005:lib\(0\):func\(0\):DH lib/ASN: bad other signature confirmation/
+#--replace_regex /error:00000005:lib\(0\):func\(0\):DH lib/ASN: bad other signature confirmation/
+--replace_regex /2026 SSL .*error.*/2026 SSL connection error: xxxx/
 --error 1
 --exec $MYSQL_TEST --ssl-ca= --max-connect-retries=1 < $MYSQLTEST_VARDIR/tmp/test.sql 2>&1
+--echo
 
 #
 # Test that we can't open connection to server if we are using
 # a nonexistent ca file
 #
---replace_regex /error:00000005:lib\(0\):func\(0\):DH lib/ASN: bad other signature confirmation/
+#--replace_regex /error:00000005:lib\(0\):func\(0\):DH lib/ASN: bad other signature confirmation/
+--replace_regex /2026 SSL .*error.*/2026 SSL connection error: xxxx/
 --error 1
 --exec $MYSQL_TEST --ssl-ca=nonexisting_file.pem --max-connect-retries=1 < $MYSQLTEST_VARDIR/tmp/test.sql 2>&1
+--echo
 
 #
 # Test that we can't open connection to server if we are using
diff --git a/scripts/mysql_secure_installation.pl.in b/scripts/mysql_secure_installation.pl.in
index ca39420952b..188a6bd7104 100755
--- a/scripts/mysql_secure_installation.pl.in
+++ b/scripts/mysql_secure_installation.pl.in
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # -*- cperl -*-
 #
-# Copyright (c) 2007, 2010, Oracle and/or its affiliates
+# Copyright (c) 2007, 2012, Oracle and/or its affiliates.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -28,7 +28,7 @@ my $mysql;  # How to call the mysql client
 my $rootpass = "";
 
 
-$SIG{QUIT} = $SIG{INT} = sub {
+$SIG{QUIT} = $SIG{INT} = $SIG{TERM} = $SIG{ABRT} = $SIG{HUP} = sub {
   print "\nAborting!\n\n";
   echo_on();
   cleanup();
@@ -242,7 +242,11 @@ sub reload_privilege_tables {
 }
 
 sub cleanup {
-  unlink($config,$command);
+  print "Cleaning up...\n";
+
+  foreach my $file ($config, $command) {
+    unlink $file or warn "Warning: Could not unlink $file: $!\n";
+  }
 }
 
 
diff --git a/scripts/mysql_secure_installation.sh b/scripts/mysql_secure_installation.sh
index 772a9d8b1d8..9e9bce9fa87 100644
--- a/scripts/mysql_secure_installation.sh
+++ b/scripts/mysql_secure_installation.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# Copyright (c) 2002, 2010, Oracle and/or its affiliates
+# Copyright (c) 2002, 2012, Oracle and/or its affiliates.
 # 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -18,7 +18,7 @@
 config=".my.cnf.$$"
 command=".mysql.$$"
 
-trap "interrupt" 2
+trap "interrupt" 1 2 3 6 15
 
 rootpass=""
 echo_n=
@@ -286,13 +286,16 @@ set_root_password() {
     if [ $? -eq 0 ]; then
 	echo "Password updated successfully!"
 	echo "Reloading privilege tables.."
-	reload_privilege_tables || exit 1
+	reload_privilege_tables
+	if [ $? -eq 1 ]; then
+		clean_and_exit
+	fi
 	echo
 	rootpass=$password1
 	make_config
     else
 	echo "Password update failed!"
-	exit 1
+	clean_and_exit
     fi
 
     return 0
@@ -304,7 +307,7 @@ remove_anonymous_users() {
 	echo " ... Success!"
     else
 	echo " ... Failed!"
-	exit 1
+	clean_and_exit
     fi
 
     return 0
@@ -364,6 +367,11 @@ cleanup() {
     rm -f $config $command
 }
 
+# Remove the files before exiting.
+clean_and_exit() {
+	cleanup
+	exit 1
+}
 
 # The actual script starts here
 
diff --git a/sql/filesort.cc b/sql/filesort.cc
index 6445fa0f0fa..2ebfb59fa32 100644
--- a/sql/filesort.cc
+++ b/sql/filesort.cc
@@ -1,5 +1,5 @@
 /*
-   Copyright (c) 2000, 2011, Oracle and/or its affiliates.  
+   Copyright (c) 2000, 2012, Oracle and/or its affiliates.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -296,8 +296,7 @@ ha_rows filesort(THD *thd, TABLE *table, SORT_FIELD *sortorder, uint s_length,
       Use also the space previously used by string pointers in sort_buffer
       for temporary key storage.
     */
-    param.keys=((param.keys*(param.rec_length+sizeof(char*))) /
-		param.rec_length-1);
+    param.keys= table_sort.sort_keys_size / param.rec_length;
     maxbuffer--;				// Offset from 0
     if (merge_many_buff(&param,(uchar*) sort_keys,buffpek,&maxbuffer,
 			&tempfile))
diff --git a/sql/gen_lex_hash.cc b/sql/gen_lex_hash.cc
index 773345b36fe..c34647c8916 100644
--- a/sql/gen_lex_hash.cc
+++ b/sql/gen_lex_hash.cc
@@ -1,5 +1,5 @@
 /*
-   Copyright (c) 2000, 2011, Oracle and/or its affiliates.
+   Copyright (c) 2000, 2012, Oracle and/or its affiliates.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -89,6 +89,8 @@ So, we can read full search-structure as 32-bit word
 #include "mysql_version.h"
 #include "lex.h"
 
+#include <welcome_copyright_notice.h> /* ORACLE_WELCOME_COPYRIGHT_NOTICE */
+
 const char *default_dbug_option="d:t:o,/tmp/gen_lex_hash.trace";
 
 struct my_option my_long_options[] =
@@ -348,10 +350,7 @@ static void usage(int version)
 	 my_progname, MYSQL_SERVER_VERSION, SYSTEM_TYPE, MACHINE_TYPE);
   if (version)
     return;
-  puts("Copyright (C) 2001 MySQL AB, by VVA and Monty");
-  puts("Copyright (C) 2011 Oracle");
-  puts("This software comes with ABSOLUTELY NO WARRANTY. This is free software,\n\
-and you are welcome to modify and redistribute it under the GPL license\n");
+  puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"));
   puts("This program generates a perfect hashing function for the sql_lex.cc");
   printf("Usage: %s [OPTIONS]\n\n", my_progname);
   my_print_help(my_long_options);
@@ -453,25 +452,9 @@ int main(int argc,char **argv)
   /* Broken up to indicate that it's not advice to you, gentle reader. */
   printf("/*\n\n  Do " "not " "edit " "this " "file " "directly!\n\n*/\n");
 
-  printf("\
-/* Copyright (C) 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc.\n\
-   Copyright (C) 2008-2011 Oracle\n\
-\n\
-   This program is free software; you can redistribute it and/or modify\n\
-   it under the terms of the GNU General Public License as published by\n\
-   the Free Software Foundation; version 2 of the License.\n\
-\n\
-   This program is distributed in the hope that it will be useful,\n\
-   but WITHOUT ANY WARRANTY; without even the implied warranty of\n\
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n\
-   GNU General Public License for more details.\n\
-\n\
-   You should have received a copy of the GNU General Public License\n\
-   along with this program; see the file COPYING. If not, write to the\n\
-   Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston\n\
-   MA  02110-1301  USA. */\n\
-\n\
-");
+  puts("/*");
+  puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"));
+  puts("*/");
 
   /* Broken up to indicate that it's not advice to you, gentle reader. */
   printf("/* Do " "not " "edit " "this " "file!  This is generated by "
diff --git a/sql/ha_partition.cc b/sql/ha_partition.cc
index 1ff2f9ca78d..a209dafd1fe 100644
--- a/sql/ha_partition.cc
+++ b/sql/ha_partition.cc
@@ -325,9 +325,7 @@ ha_partition::~ha_partition()
     for (i= 0; i < m_tot_parts; i++)
       delete m_file[i];
   }
-
-  my_free(m_ordered_rec_buffer, MYF(MY_ALLOW_ZERO_PTR));
-  m_ordered_rec_buffer= NULL;
+  destroy_record_priority_queue();
 
   clear_handler_file();
 
@@ -2664,7 +2662,6 @@ int ha_partition::open(const char *name, int mode, uint test_if_locked)
 {
   char *name_buffer_ptr;
   int error= HA_ERR_INITIALIZATION;
-  uint alloc_len;
   handler **file;
   char name_buff[FN_REFLEN];
   bool is_not_tmp_table= (table_share->tmp_table == NO_TMP_TABLE);
@@ -2681,33 +2678,7 @@ int ha_partition::open(const char *name, int mode, uint test_if_locked)
   name_buffer_ptr= m_name_buffer_ptr;
   m_start_key.length= 0;
   m_rec0= table->record[0];
-  m_rec_length= table_share->stored_rec_length;
-  alloc_len= m_tot_parts * (m_rec_length + PARTITION_BYTES_IN_POS);
-  alloc_len+= table_share->max_key_length;
-  if (!m_ordered_rec_buffer)
-  {
-    if (!(m_ordered_rec_buffer= (uchar*)my_malloc(alloc_len, MYF(MY_WME))))
-    {
-      DBUG_RETURN(error);
-    }
-    {
-      /*
-        We set-up one record per partition and each record has 2 bytes in
-        front where the partition id is written. This is used by ordered
-        index_read.
-        We also set-up a reference to the first record for temporary use in
-        setting up the scan.
-      */
-      char *ptr= (char*)m_ordered_rec_buffer;
-      uint i= 0;
-      do
-      {
-        int2store(ptr, i);
-        ptr+= m_rec_length + PARTITION_BYTES_IN_POS;
-      } while (++i < m_tot_parts);
-      m_start_key.key= (const uchar*)ptr;
-    }
-  }
+  m_rec_length= table_share->reclength;
 
   /* Initialize the bitmap we use to minimize ha_start_bulk_insert calls */
   if (bitmap_init(&m_bulk_insert_started, NULL, m_tot_parts + 1, FALSE))
@@ -2727,7 +2698,7 @@ int ha_partition::open(const char *name, int mode, uint test_if_locked)
 
   if (m_is_clone_of)
   {
-    uint i;
+    uint i, alloc_len;
     DBUG_ASSERT(m_clone_mem_root);
     /* Allocate an array of handler pointers for the partitions handlers. */
     alloc_len= (m_tot_parts + 1) * sizeof(handler*);
@@ -2805,12 +2776,6 @@ int ha_partition::open(const char *name, int mode, uint test_if_locked)
     being opened once.
   */
   clear_handler_file();
-  /*
-    Initialize priority queue, initialized to reading forward.
-  */
-  if ((error= init_queue(&m_queue, m_tot_parts, (uint) PARTITION_BYTES_IN_POS,
-                         0, key_rec_cmp, (void*)this)))
-    goto err_handler;
 
   /*
     Use table_share->ha_data to share auto_increment_value among all handlers
@@ -2933,7 +2898,7 @@ int ha_partition::close(void)
   DBUG_ENTER("ha_partition::close");
 
   DBUG_ASSERT(table->s == table_share);
-  delete_queue(&m_queue);
+  destroy_record_priority_queue();
   bitmap_free(&m_bulk_insert_started);
   if (!m_is_clone_of)
     bitmap_free(&(m_part_info->used_partitions));
@@ -4153,6 +4118,78 @@ int ha_partition::rnd_pos_by_record(uchar *record)
     subset of the partitions are used, then only use those partitions.
 */
 
+
+/**
+  Setup the ordered record buffer and the priority queue.
+*/
+
+bool ha_partition::init_record_priority_queue()
+{
+  DBUG_ENTER("ha_partition::init_record_priority_queue");
+  DBUG_ASSERT(!m_ordered_rec_buffer);
+  /*
+    Initialize the ordered record buffer.
+  */
+  if (!m_ordered_rec_buffer)
+  {
+    uint alloc_len;
+    uint used_parts= bitmap_bits_set(&m_part_info->used_partitions);
+    /* Allocate record buffer for each used partition. */
+    alloc_len= used_parts * (m_rec_length + PARTITION_BYTES_IN_POS);
+    /* Allocate a key for temporary use when setting up the scan. */
+    alloc_len+= table_share->max_key_length;
+
+    if (!(m_ordered_rec_buffer= (uchar*)my_malloc(alloc_len, MYF(MY_WME))))
+      DBUG_RETURN(true);
+
+    /*
+      We set-up one record per partition and each record has 2 bytes in
+      front where the partition id is written. This is used by ordered
+      index_read.
+      We also set-up a reference to the first record for temporary use in
+      setting up the scan.
+    */
+    char *ptr= (char*) m_ordered_rec_buffer;
+    uint16 i= 0;
+    do
+    {
+      if (bitmap_is_set(&m_part_info->used_partitions, i))
+      {
+        int2store(ptr, i);
+        ptr+= m_rec_length + PARTITION_BYTES_IN_POS;
+      }
+    } while (++i < m_tot_parts);
+    m_start_key.key= (const uchar*)ptr;
+    /* Initialize priority queue, initialized to reading forward. */
+    if (init_queue(&m_queue, used_parts, (uint) PARTITION_BYTES_IN_POS,
+                   0, key_rec_cmp, (void*)m_curr_key_info))
+    {
+      my_free(m_ordered_rec_buffer, MYF(0));
+      m_ordered_rec_buffer= NULL;
+      DBUG_RETURN(true);
+    }
+  }
+  DBUG_RETURN(false);
+}
+
+
+/**
+  Destroy the ordered record buffer and the priority queue.
+*/
+
+void ha_partition::destroy_record_priority_queue()
+{
+  DBUG_ENTER("ha_partition::destroy_record_priority_queue");
+  if (m_ordered_rec_buffer)
+  {
+    delete_queue(&m_queue);
+    my_free(m_ordered_rec_buffer, MYF(0));
+    m_ordered_rec_buffer= NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+
 /*
   Initialize handler before start of index scan
 
@@ -4194,6 +4231,10 @@ int ha_partition::index_init(uint inx, bool sorted)
   }
   else
     m_curr_key_info[1]= NULL;
+
+  if (init_record_priority_queue())
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
   /*
     Some handlers only read fields as specified by the bitmap for the
     read set. For partitioned handlers we always require that the
@@ -4268,11 +4309,11 @@ int ha_partition::index_end()
   do
   {
     int tmp;
-    /* TODO RONM: Change to index_end() when code is stable */
     if (bitmap_is_set(&(m_part_info->used_partitions), (file - m_file)))
       if ((tmp= (*file)->ha_index_end()))
         error= tmp;
   } while (*(++file));
+  destroy_record_priority_queue();
   DBUG_RETURN(error);
 }
 
@@ -4985,6 +5026,7 @@ int ha_partition::handle_ordered_index_scan(uchar *buf, bool reverse_order)
   uint i;
   uint j= 0;
   bool found= FALSE;
+  uchar *part_rec_buf_ptr= m_ordered_rec_buffer;
   DBUG_ENTER("ha_partition::handle_ordered_index_scan");
 
   m_top_entry= NO_CURRENT_PART_ID;
@@ -4995,7 +5037,7 @@ int ha_partition::handle_ordered_index_scan(uchar *buf, bool reverse_order)
   {
     if (!(bitmap_is_set(&(m_part_info->used_partitions), i)))
       continue;
-    uchar *rec_buf_ptr= rec_buf(i);
+    uchar *rec_buf_ptr= part_rec_buf_ptr + PARTITION_BYTES_IN_POS;
     int error;
     handler *file= m_file[i];
 
@@ -5036,12 +5078,13 @@ int ha_partition::handle_ordered_index_scan(uchar *buf, bool reverse_order)
       /*
         Initialize queue without order first, simply insert
       */
-      queue_element(&m_queue, j++)= (uchar*)queue_buf(i);
+      queue_element(&m_queue, j++)= part_rec_buf_ptr;
     }
     else if (error != HA_ERR_KEY_NOT_FOUND && error != HA_ERR_END_OF_FILE)
     {
       DBUG_RETURN(error);
     }
+    part_rec_buf_ptr+= m_rec_length + PARTITION_BYTES_IN_POS;
   }
   if (found)
   {
@@ -5104,18 +5147,19 @@ int ha_partition::handle_ordered_next(uchar *buf, bool is_next_same)
 {
   int error;
   uint part_id= m_top_entry;
+  uchar *rec_buf= queue_top(&m_queue) + PARTITION_BYTES_IN_POS;
   handler *file= m_file[part_id];
   DBUG_ENTER("ha_partition::handle_ordered_next");
   
   if (m_index_scan_type == partition_read_range)
   {
     error= file->read_range_next();
-    memcpy(rec_buf(part_id), table->record[0], m_rec_length);
+    memcpy(rec_buf, table->record[0], m_rec_length);
   }
   else if (!is_next_same)
-    error= file->ha_index_next(rec_buf(part_id));
+    error= file->ha_index_next(rec_buf);
   else
-    error= file->ha_index_next_same(rec_buf(part_id), m_start_key.key,
+    error= file->ha_index_next_same(rec_buf, m_start_key.key,
                                     m_start_key.length);
   if (error)
   {
@@ -5158,10 +5202,11 @@ int ha_partition::handle_ordered_prev(uchar *buf)
 {
   int error;
   uint part_id= m_top_entry;
+  uchar *rec_buf= queue_top(&m_queue) + PARTITION_BYTES_IN_POS;
   handler *file= m_file[part_id];
   DBUG_ENTER("ha_partition::handle_ordered_prev");
 
-  if ((error= file->ha_index_prev(rec_buf(part_id))))
+  if ((error= file->ha_index_prev(rec_buf)))
   {
     if (error == HA_ERR_END_OF_FILE)
     {
diff --git a/sql/ha_partition.h b/sql/ha_partition.h
index b1e38e0421d..c33216047b3 100644
--- a/sql/ha_partition.h
+++ b/sql/ha_partition.h
@@ -516,21 +516,13 @@ public:
   virtual int read_range_next();
 
 private:
+  bool init_record_priority_queue();
+  void destroy_record_priority_queue();
   int common_index_read(uchar * buf, bool have_start_key);
   int common_first_last(uchar * buf);
   int partition_scan_set_up(uchar * buf, bool idx_read_flag);
   int handle_unordered_next(uchar * buf, bool next_same);
   int handle_unordered_scan_next_partition(uchar * buf);
-  uchar *queue_buf(uint part_id)
-    {
-      return (m_ordered_rec_buffer +
-              (part_id * (m_rec_length + PARTITION_BYTES_IN_POS)));
-    }
-  uchar *rec_buf(uint part_id)
-    {
-      return (queue_buf(part_id) +
-              PARTITION_BYTES_IN_POS);
-    }
   int handle_ordered_index_scan(uchar * buf, bool reverse_order);
   int handle_ordered_next(uchar * buf, bool next_same);
   int handle_ordered_prev(uchar * buf);
diff --git a/sql/handler.cc b/sql/handler.cc
index a5dbf5170b7..86e584d4e1f 100644
--- a/sql/handler.cc
+++ b/sql/handler.cc
@@ -4521,7 +4521,20 @@ int handler::read_range_first(const key_range *start_key,
     DBUG_RETURN((result == HA_ERR_KEY_NOT_FOUND) 
 		? HA_ERR_END_OF_FILE
 		: result);
-  DBUG_RETURN (compare_key(end_range) <= 0 ? 0 : HA_ERR_END_OF_FILE);
+
+  if (compare_key(end_range) <= 0)
+  {
+    DBUG_RETURN(0);
+  }
+  else
+  {
+    /*
+      The last read row does not fall in the range. So request
+      storage engine to release row lock if possible.
+    */
+    unlock_row();
+    DBUG_RETURN(HA_ERR_END_OF_FILE);
+  }
 }
 
 
@@ -4553,7 +4566,20 @@ int handler::read_range_next()
   result= ha_index_next(table->record[0]);
   if (result)
     DBUG_RETURN(result);
-  DBUG_RETURN(compare_key(end_range) <= 0 ? 0 : HA_ERR_END_OF_FILE);
+
+  if (compare_key(end_range) <= 0)
+  {
+    DBUG_RETURN(0);
+  }
+  else
+  {
+    /*
+      The last read row does not fall in the range. So request
+      storage engine to release row lock if possible.
+    */
+    unlock_row();
+    DBUG_RETURN(HA_ERR_END_OF_FILE);
+  }
 }
 
 
diff --git a/sql/item_strfunc.cc b/sql/item_strfunc.cc
index 1488fe25fd9..68b54609193 100644
--- a/sql/item_strfunc.cc
+++ b/sql/item_strfunc.cc
@@ -3049,23 +3049,21 @@ err:
 String* Item_func_export_set::val_str(String* str)
 {
   DBUG_ASSERT(fixed == 1);
-  ulonglong the_set = (ulonglong) args[0]->val_int();
-  String yes_buf, *yes;
-  yes = args[1]->val_str(&yes_buf);
-  String no_buf, *no;
-  no = args[2]->val_str(&no_buf);
-  String *sep = NULL, sep_buf ;
+  String yes_buf, no_buf, sep_buf;
+  const ulonglong the_set = (ulonglong) args[0]->val_int();
+  const String *yes= args[1]->val_str(&yes_buf);
+  const String *no= args[2]->val_str(&no_buf);
+  const String *sep= NULL;
 
   uint num_set_values = 64;
-  ulonglong mask = 0x1;
   str->length(0);
   str->set_charset(collation.collation);
 
   /* Check if some argument is a NULL value */
   if (args[0]->null_value || args[1]->null_value || args[2]->null_value)
   {
-    null_value=1;
-    return 0;
+    null_value= true;
+    return NULL;
   }
   /*
     Arg count can only be 3, 4 or 5 here. This is guaranteed from the
@@ -3078,37 +3076,56 @@ String* Item_func_export_set::val_str(String* str)
       num_set_values=64;
     if (args[4]->null_value)
     {
-      null_value=1;
-      return 0;
+      null_value= true;
+      return NULL;
     }
     /* Fall through */
   case 4:
     if (!(sep = args[3]->val_str(&sep_buf)))	// Only true if NULL
     {
-      null_value=1;
-      return 0;
+      null_value= true;
+      return NULL;
     }
     break;
   case 3:
     {
       /* errors is not checked - assume "," can always be converted */
       uint errors;
-      sep_buf.copy(STRING_WITH_LEN(","), &my_charset_bin, collation.collation, &errors);
+      sep_buf.copy(STRING_WITH_LEN(","), &my_charset_bin,
+                   collation.collation, &errors);
       sep = &sep_buf;
     }
     break;
   default:
     DBUG_ASSERT(0); // cannot happen
   }
-  null_value=0;
+  null_value= false;
+
+  const ulong max_allowed_packet= current_thd->variables.max_allowed_packet;
+  const uint num_separators= num_set_values > 0 ? num_set_values - 1 : 0;
+  const ulonglong max_total_length=
+    num_set_values * max(yes->length(), no->length()) +
+    num_separators * sep->length();
+
+  if (unlikely(max_total_length > max_allowed_packet))
+  {
+    push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+                        ER_WARN_ALLOWED_PACKET_OVERFLOWED,
+                        ER(ER_WARN_ALLOWED_PACKET_OVERFLOWED),
+                        func_name(), max_allowed_packet);
+    null_value= true;
+    return NULL;
+  }
 
-  for (uint i = 0; i < num_set_values; i++, mask = (mask << 1))
+  uint ix;
+  ulonglong mask;
+  for (ix= 0, mask=0x1; ix < num_set_values; ++ix, mask = (mask << 1))
   {
     if (the_set & mask)
       str->append(*yes);
     else
       str->append(*no);
-    if (i != num_set_values - 1)
+    if (ix != num_separators)
       str->append(*sep);
   }
   return str;
diff --git a/sql/item_subselect.cc b/sql/item_subselect.cc
index 888c346c199..55db3c6136f 100644
--- a/sql/item_subselect.cc
+++ b/sql/item_subselect.cc
@@ -1171,7 +1171,7 @@ Item_in_subselect::single_value_transformer(JOIN *join,
   }
   else
   {
-    Item *item= (Item*) select_lex->item_list.head();
+    Item *item= (Item*) select_lex->item_list.head()->real_item();
 
     if (select_lex->table_list.elements)
     {
diff --git a/sql/log_event.h b/sql/log_event.h
index ddf0141c832..b78d674dba9 100644
--- a/sql/log_event.h
+++ b/sql/log_event.h
@@ -2502,7 +2502,7 @@ public:
   User_var_log_event(THD* thd_arg, char *name_arg, uint name_len_arg,
                      char *val_arg, ulong val_len_arg, Item_result type_arg,
 		     uint charset_number_arg)
-    :Log_event(), name(name_arg), name_len(name_len_arg), val(val_arg),
+    :Log_event(thd_arg,0,0), name(name_arg), name_len(name_len_arg), val(val_arg),
     val_len(val_len_arg), type(type_arg), charset_number(charset_number_arg),
     deferred(false)
     { is_null= !val; }
diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index 39be34bab0c..b7544ac8f52 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -270,6 +270,8 @@ extern "C" sig_handler handle_fatal_signal(int sig);
 
 /* Constants */
 
+#include <welcome_copyright_notice.h> // ORACLE_WELCOME_COPYRIGHT_NOTICE
+
 const char *show_comp_option_name[]= {"YES", "NO", "DISABLED"};
 /*
   WARNING: When adding new SQL modes don't forget to update the
@@ -8084,14 +8086,8 @@ static void usage(void)
   if (!default_collation_name)
     default_collation_name= (char*) default_charset_info->name;
   print_version();
-  puts("\
-Copyright (C) 2000-2008 MySQL AB, by Monty and others.\n\
-Copyright (C) 2000, 2011 Oracle.\n\
-Copyright (C) 2009-2011 Monty Program Ab.\n\
-This software comes with ABSOLUTELY NO WARRANTY. This is free software,\n\
-and you are welcome to modify and redistribute it under the GPL license\n\n\
-Starts the MariaDB database server.\n");
-
+  puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"));
+  puts("Starts the MariaDB database server.\n");
   printf("Usage: %s [OPTIONS]\n", my_progname);
   if (!opt_verbose)
     puts("\nFor more help options (several pages), use mysqld --verbose --help.");
diff --git a/sql/share/charsets/Index.xml b/sql/share/charsets/Index.xml
index 80b844e2f19..07e7e37b798 100644
--- a/sql/share/charsets/Index.xml
+++ b/sql/share/charsets/Index.xml
@@ -3,7 +3,7 @@
 <charsets max-id="99">
 
 <copyright>
- Copyright (C) 2003 MySQL AB
+  Copyright (c) 2003, 2012,  Oracle and/or its affiliates. All rights reserved.
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
diff --git a/sql/spatial.cc b/sql/spatial.cc
index 783d37ada48..eec028eaef1 100644
--- a/sql/spatial.cc
+++ b/sql/spatial.cc
@@ -525,12 +525,13 @@ uint Gis_line_string::init_from_wkb(const char *wkb, uint len,
   const char *wkb_end;
   Gis_point p;
 
-  if (len < 4)
+  if (len < 4 ||
+      (n_points= wkb_get_uint(wkb, bo)) < 1 ||
+      n_points > max_n_points)
     return 0;
-  n_points= wkb_get_uint(wkb, bo);
   proper_length= 4 + n_points * POINT_DATA_SIZE;
 
-  if (!n_points || len < proper_length || res->reserve(proper_length))
+  if (len < proper_length || res->reserve(proper_length))
     return 0;
 
   res->q_append(n_points);
@@ -1072,9 +1073,9 @@ uint Gis_multi_point::init_from_wkb(const char *wkb, uint len, wkbByteOrder bo,
   Gis_point p;
   const char *wkb_end;
 
-  if (len < 4)
+  if (len < 4 ||
+      (n_points= wkb_get_uint(wkb, bo)) > max_n_points)
     return 0;
-  n_points= wkb_get_uint(wkb, bo);
   proper_size= 4 + n_points * (WKB_HEADER_SIZE + POINT_DATA_SIZE);
  
   if (len < proper_size || res->reserve(proper_size))
diff --git a/sql/spatial.h b/sql/spatial.h
index 662c377dc1d..20b3856ca9a 100644
--- a/sql/spatial.h
+++ b/sql/spatial.h
@@ -379,6 +379,10 @@ public:
 
 class Gis_line_string: public Geometry
 {
+  // Maximum number of points in LineString that can fit into String
+  static const uint32 max_n_points=
+    (uint32) (UINT_MAX32 - WKB_HEADER_SIZE - 4 /* n_points */) /
+    POINT_DATA_SIZE;
 public:
   Gis_line_string() {}                        /* Remove gcc warning */
   virtual ~Gis_line_string() {}               /* Remove gcc warning */
@@ -435,6 +439,10 @@ public:
 
 class Gis_multi_point: public Geometry
 {
+  // Maximum number of points in MultiPoint that can fit into String
+  static const uint32 max_n_points=
+    (uint32) (UINT_MAX32 - WKB_HEADER_SIZE - 4 /* n_points */) /
+    (WKB_HEADER_SIZE + POINT_DATA_SIZE);
 public:
   Gis_multi_point() {}                        /* Remove gcc warning */
   virtual ~Gis_multi_point() {}               /* Remove gcc warning */
diff --git a/sql/sql_prepare.cc b/sql/sql_prepare.cc
index 6a36bca6a95..c269b262ff4 100644
--- a/sql/sql_prepare.cc
+++ b/sql/sql_prepare.cc
@@ -786,6 +786,14 @@ static bool insert_params_with_log(Prepared_statement *stmt, uchar *null_array,
         param->set_param_func(param, &read_pos, (uint) (data_end - read_pos));
         if (param->state == Item_param::NO_VALUE)
           DBUG_RETURN(1);
+
+        if (param->limit_clause_param && param->item_type != Item::INT_ITEM)
+        {
+          param->set_int(param->val_int(), MY_INT64_NUM_DECIMAL_DIGITS);
+          param->item_type= Item::INT_ITEM;
+          if (!param->unsigned_flag && param->value.integer < 0)
+            DBUG_RETURN(1);
+        }
       }
     }
     /*
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index cc377500b2c..87fb2ac95ad 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -538,8 +538,6 @@ JOIN::prepare(Item ***rref_pointer_array,
   
   if (having)
   {
-    Query_arena backup, *arena;
-    arena= thd->activate_stmt_arena_if_needed(&backup);
     nesting_map save_allow_sum_func= thd->lex->allow_sum_func;
     thd->where="having clause";
     thd->lex->allow_sum_func|= 1 << select_lex_arg->nest_level;
@@ -549,8 +547,6 @@ JOIN::prepare(Item ***rref_pointer_array,
 			  having->check_cols(1)));
     select_lex->having_fix_field= 0;
     select_lex->having= having;
-    if (arena)
-      thd->restore_active_arena(arena, &backup);
 
     if (having_fix_rc || thd->is_error())
       DBUG_RETURN(-1);				/* purecov: inspected */
@@ -1468,12 +1464,19 @@ JOIN::optimize()
         DBUG_RETURN(1);
       }
     }
-    
+    /*
+      Calculate a possible 'limit' of table rows for 'GROUP BY': 'need_tmp'
+      implies that there will be more postprocessing so the specified
+      'limit' should not be enforced yet in the call to
+      'test_if_skip_sort_order'.
+    */
+    const ha_rows limit = need_tmp ? HA_POS_ERROR : unit->select_limit_cnt;
+
     if (!(select_options & SELECT_BIG_RESULT) &&
         ((group_list &&
           (!simple_group ||
            !test_if_skip_sort_order(&join_tab[const_tables], group_list,
-                                    unit->select_limit_cnt, 0, 
+                                    limit, 0,
                                     &join_tab[const_tables].table->
                                     keys_in_use_for_group_by))) ||
          select_distinct) &&
diff --git a/sql/sql_show.cc b/sql/sql_show.cc
index 69b6399fd62..795b009a551 100644
--- a/sql/sql_show.cc
+++ b/sql/sql_show.cc
@@ -3585,8 +3585,9 @@ end:
   /* Restore original LEX value, statement's arena and THD arena values. */
   lex_end(thd->lex);
 
-  if (i_s_arena.free_list)
-    i_s_arena.free_items();
+  // Free items, before restoring backup_arena below.
+  DBUG_ASSERT(i_s_arena.free_list == NULL);
+  thd->free_items();
 
   /*
     For safety reset list of open temporary tables before closing
diff --git a/sql/sql_string.h b/sql/sql_string.h
index f1b77d754c2..4b0aaff35b9 100644
--- a/sql/sql_string.h
+++ b/sql/sql_string.h
@@ -1,5 +1,5 @@
 /*
-   Copyright (c) 2000, 2011, Oracle and/or its affiliates.
+   Copyright (c) 2000, 2012, Oracle and/or its affiliates.
    Copyright (c) 2008-2011 Monty Program Ab
 
    This program is free software; you can redistribute it and/or modify
@@ -251,8 +251,12 @@ public:
       return 0;
     return realloc_with_extra(arg_length);
   }
-  inline void shrink(uint32 arg_length)		// Shrink buffer
+
+  // Shrink the buffer, but only if it is allocated on the heap.
+  inline void shrink(uint32 arg_length)
   {
+    if (!is_alloced())
+      return;
     if (ALIGN_SIZE(arg_length+1) < Alloced_length)
     {
       char *new_ptr;
@@ -268,7 +272,7 @@ public:
       }
     }
   }
-  bool is_alloced() { return alloced; }
+  bool is_alloced() const { return alloced; }
   inline String& operator = (const String &s)
   {
     if (&s != this)
diff --git a/storage/federated/ha_federated.cc b/storage/federated/ha_federated.cc
index e0c6ea379fc..079485348c0 100644
--- a/storage/federated/ha_federated.cc
+++ b/storage/federated/ha_federated.cc
@@ -1364,7 +1364,7 @@ bool ha_federated::create_where_from_key(String *to,
           break;
         }
         DBUG_PRINT("info", ("federated HA_READ_AFTER_KEY %d", i));
-        if (store_length >= length) /* end key */
+        if ((store_length >= length) || (i > 0)) /* for all parts of end key*/
         {
           if (emit_key_part_name(&tmp, key_part))
             goto err;
diff --git a/storage/innobase/btr/btr0pcur.c b/storage/innobase/btr/btr0pcur.c
index 50aef035f2e..fe7878b6b0e 100644
--- a/storage/innobase/btr/btr0pcur.c
+++ b/storage/innobase/btr/btr0pcur.c
@@ -312,45 +312,40 @@ btr_pcur_restore_position(
 	/* Restore the old search mode */
 	cursor->search_mode = old_mode;
 
-	if (btr_pcur_is_on_user_rec(cursor, mtr)) {
-		switch (cursor->rel_pos) {
-		case BTR_PCUR_ON:
-			if (!cmp_dtuple_rec(
-				    tuple, btr_pcur_get_rec(cursor),
-				    rec_get_offsets(btr_pcur_get_rec(cursor),
-						    index, NULL,
-						    ULINT_UNDEFINED, &heap))) {
-
-				/* We have to store the NEW value for
-				the modify clock, since the cursor can
-				now be on a different page! But we can
-				retain the value of old_rec */
-
-				cursor->block_when_stored =
-					buf_block_align(
-						btr_pcur_get_page(cursor));
-				cursor->modify_clock =
-					buf_block_get_modify_clock(
-						cursor->block_when_stored);
-				cursor->old_stored = BTR_PCUR_OLD_STORED;
-
-				mem_heap_free(heap);
-
-				return(TRUE);
-			}
-
-			break;
-		case BTR_PCUR_BEFORE:
-			page_cur_move_to_next(btr_pcur_get_page_cur(cursor));
-			break;
-		case BTR_PCUR_AFTER:
-			page_cur_move_to_prev(btr_pcur_get_page_cur(cursor));
-			break;
+	switch (cursor->rel_pos) {
+	case BTR_PCUR_ON:
+		if (btr_pcur_is_on_user_rec(cursor, mtr)
+		    && !cmp_dtuple_rec(
+			    tuple, btr_pcur_get_rec(cursor),
+			    rec_get_offsets(btr_pcur_get_rec(cursor),
+					    index, NULL,
+					    ULINT_UNDEFINED, &heap))) {
+
+			/* We have to store the NEW value for
+			the modify clock, since the cursor can
+			now be on a different page! But we can
+			retain the value of old_rec */
+
+			cursor->block_when_stored =
+				buf_block_align(
+					btr_pcur_get_page(cursor));
+			cursor->modify_clock =
+				buf_block_get_modify_clock(
+					cursor->block_when_stored);
+			cursor->old_stored = BTR_PCUR_OLD_STORED;
+
+			mem_heap_free(heap);
+
+			return(TRUE);
+		}
 #ifdef UNIV_DEBUG
-		default:
-			ut_error;
+		/* fall through */
+	case BTR_PCUR_BEFORE:
+	case BTR_PCUR_AFTER:
+		break;
+	default:
+		ut_error;
 #endif /* UNIV_DEBUG */
-		}
 	}
 
 	mem_heap_free(heap);
diff --git a/storage/innobase/handler/ha_innodb.cc b/storage/innobase/handler/ha_innodb.cc
index 796f51d737b..df465d016e1 100644
--- a/storage/innobase/handler/ha_innodb.cc
+++ b/storage/innobase/handler/ha_innodb.cc
@@ -6380,7 +6380,6 @@ ha_innobase::records_in_range(
 	void*		heap2;
 
 	DBUG_ENTER("records_in_range");
-	DBUG_ASSERT(min_key || max_key);
 
 	ut_a(prebuilt->trx == thd_to_trx(ha_thd()));
 
diff --git a/storage/innodb_plugin/ChangeLog b/storage/innodb_plugin/ChangeLog
index 1588132fc8b..4ef88e3bca1 100644
--- a/storage/innodb_plugin/ChangeLog
+++ b/storage/innodb_plugin/ChangeLog
@@ -1,3 +1,32 @@
+2012-08-29	The InnoDB Team
+
+	* btr/btr0btr.c, page/page0cur.c, page/page0page.c:
+	Fix Bug#14554000 CRASH IN PAGE_REC_GET_NTH_CONST(NTH=0)
+	DURING COMPRESSED PAGE SPLIT
+
+2012-08-16	The InnoDB Team
+
+	* btr/btr0cur.c:
+	Fix Bug#12595091 POSSIBLY INVALID ASSERTION IN
+	BTR_CUR_PESSIMISTIC_UPDATE()
+
+2012-08-16	The InnoDB Team
+
+	* btr/btr0btr.c, btr/btr0cur.c:
+	Fix Bug#12845774 OPTIMISTIC INSERT/UPDATE USES WRONG HEURISTICS FOR
+	COMPRESSED PAGE SIZE
+
+2012-08-16	The InnoDB Team
+
+	* btr/btr0cur.c, page/page0page.c:
+	Fix Bug#13523839 ASSERTION FAILURES ON COMPRESSED INNODB TABLES
+
+2012-08-07	The InnoDB Team
+
+	* btr/btr0pcur.c, row/row0merge.c:
+	Fix Bug#14399148 INNODB TABLES UNDER LOAD PRODUCE DUPLICATE COPIES
+	OF ROWS IN QUERIES
+
 2012-03-15	The InnoDB Team
 
 	* fil/fil0fil.c, ibuf/ibuf0ibuf.c, include/fil0fil.h,
diff --git a/storage/innodb_plugin/btr/btr0btr.c b/storage/innodb_plugin/btr/btr0btr.c
index 05723c26e2f..604c56b5e73 100644
--- a/storage/innodb_plugin/btr/btr0btr.c
+++ b/storage/innodb_plugin/btr/btr0btr.c
@@ -1822,6 +1822,7 @@ btr_root_raise_and_insert(
 	root = btr_cur_get_page(cursor);
 	root_block = btr_cur_get_block(cursor);
 	root_page_zip = buf_block_get_page_zip(root_block);
+	ut_ad(page_get_n_recs(root) > 0);
 #ifdef UNIV_ZIP_DEBUG
 	ut_a(!root_page_zip || page_zip_validate(root_page_zip, root));
 #endif /* UNIV_ZIP_DEBUG */
@@ -2302,12 +2303,20 @@ btr_insert_on_non_leaf_level_func(
 				    BTR_CONT_MODIFY_TREE,
 				    &cursor, 0, file, line, mtr);
 
-	err = btr_cur_pessimistic_insert(BTR_NO_LOCKING_FLAG
-					 | BTR_KEEP_SYS_FLAG
-					 | BTR_NO_UNDO_LOG_FLAG,
-					 &cursor, tuple, &rec,
-					 &dummy_big_rec, 0, NULL, mtr);
-	ut_a(err == DB_SUCCESS);
+	ut_ad(cursor.flag == BTR_CUR_BINARY);
+
+	err = btr_cur_optimistic_insert(
+		BTR_NO_LOCKING_FLAG | BTR_KEEP_SYS_FLAG
+		| BTR_NO_UNDO_LOG_FLAG, &cursor, tuple, &rec,
+		&dummy_big_rec, 0, NULL, mtr);
+
+	if (err == DB_FAIL) {
+		err = btr_cur_pessimistic_insert(
+			BTR_NO_LOCKING_FLAG | BTR_KEEP_SYS_FLAG
+			| BTR_NO_UNDO_LOG_FLAG,
+			&cursor, tuple, &rec, &dummy_big_rec, 0, NULL, mtr);
+		ut_a(err == DB_SUCCESS);
+	}
 }
 
 /**************************************************************//**
@@ -3232,6 +3241,7 @@ btr_compress(
 
 	if (adjust) {
 		nth_rec = page_rec_get_n_recs_before(btr_cur_get_rec(cursor));
+		ut_ad(nth_rec > 0);
 	}
 
 	/* Decide the page to which we try to merge and which will inherit
@@ -3467,6 +3477,7 @@ func_exit:
 	mem_heap_free(heap);
 
 	if (adjust) {
+		ut_ad(nth_rec > 0);
 		btr_cur_position(
 			index,
 			page_rec_get_nth(merge_block->frame, nth_rec),
@@ -3979,8 +3990,22 @@ btr_index_page_validate(
 {
 	page_cur_t	cur;
 	ibool		ret	= TRUE;
+#ifndef DBUG_OFF
+	ulint		nth	= 1;
+#endif /* !DBUG_OFF */
 
 	page_cur_set_before_first(block, &cur);
+
+	/* Directory slot 0 should only contain the infimum record. */
+	DBUG_EXECUTE_IF("check_table_rec_next",
+			ut_a(page_rec_get_nth_const(
+				     page_cur_get_page(&cur), 0)
+			     == cur.rec);
+			ut_a(page_dir_slot_get_n_owned(
+				     page_dir_get_nth_slot(
+					     page_cur_get_page(&cur), 0))
+			     == 1););
+
 	page_cur_move_to_next(&cur);
 
 	for (;;) {
@@ -3994,6 +4019,16 @@ btr_index_page_validate(
 			return(FALSE);
 		}
 
+		/* Verify that page_rec_get_nth_const() is correctly
+		retrieving each record. */
+		DBUG_EXECUTE_IF("check_table_rec_next",
+				ut_a(cur.rec == page_rec_get_nth_const(
+					     page_cur_get_page(&cur),
+					     page_rec_get_n_recs_before(
+						     cur.rec)));
+				ut_a(nth++ == page_rec_get_n_recs_before(
+					     cur.rec)););
+
 		page_cur_move_to_next(&cur);
 	}
 
diff --git a/storage/innodb_plugin/btr/btr0cur.c b/storage/innodb_plugin/btr/btr0cur.c
index 223b976dea7..8fb4366d894 100644
--- a/storage/innodb_plugin/btr/btr0cur.c
+++ b/storage/innodb_plugin/btr/btr0cur.c
@@ -1220,7 +1220,12 @@ fail_err:
 
 		if (UNIV_UNLIKELY(reorg)) {
 			ut_a(zip_size);
-			ut_a(*rec);
+			/* It's possible for rec to be NULL if the
+			page is compressed.  This is because a
+			reorganized page may become incompressible. */
+			if (!*rec) {
+				goto fail;
+			}
 		}
 	}
 
@@ -1356,20 +1361,9 @@ btr_cur_pessimistic_insert(
 	ut_ad(mtr_memo_contains(mtr, btr_cur_get_block(cursor),
 				MTR_MEMO_PAGE_X_FIX));
 
-	/* Try first an optimistic insert; reset the cursor flag: we do not
-	assume anything of how it was positioned */
-
 	cursor->flag = BTR_CUR_BINARY;
 
-	err = btr_cur_optimistic_insert(flags, cursor, entry, rec,
-					big_rec, n_ext, thr, mtr);
-	if (err != DB_FAIL) {
-
-		return(err);
-	}
-
-	/* Retry with a pessimistic insert. Check locks and write to undo log,
-	if specified */
+	/* Check locks and write to undo log, if specified */
 
 	err = btr_cur_ins_lock_and_undo(flags, cursor, entry,
 					thr, mtr, &dummy_inh);
@@ -1973,8 +1967,12 @@ any_extern:
 		goto err_exit;
 	}
 
-	max_size = old_rec_size
-		+ page_get_max_insert_size_after_reorganize(page, 1);
+	/* We do not attempt to reorganize if the page is compressed.
+	This is because the page may fail to compress after reorganization. */
+	max_size = page_zip
+		? page_get_max_insert_size(page, 1)
+		: (old_rec_size
+		   + page_get_max_insert_size_after_reorganize(page, 1));
 
 	if (!(((max_size >= BTR_CUR_PAGE_REORGANIZE_LIMIT)
 	       && (max_size >= new_rec_size))
@@ -2328,7 +2326,12 @@ make_external:
 		err = DB_SUCCESS;
 		goto return_after_reservations;
 	} else {
-		ut_a(optim_err != DB_UNDERFLOW);
+		/* If the page is compressed and it initially
+		compresses very well, and there is a subsequent insert
+		of a badly-compressing record, it is possible for
+		btr_cur_optimistic_update() to return DB_UNDERFLOW and
+		btr_cur_insert_if_possible() to return FALSE. */
+		ut_a(page_zip || optim_err != DB_UNDERFLOW);
 
 		/* Out of space: reset the free bits. */
 		if (!dict_index_is_clust(index)
@@ -2356,8 +2359,10 @@ make_external:
 	record on its page? */
 	was_first = page_cur_is_before_first(page_cursor);
 
-	/* The first parameter means that no lock checking and undo logging
-	is made in the insert */
+	/* Lock checks and undo logging were already performed by
+	btr_cur_upd_lock_and_undo(). We do not try
+	btr_cur_optimistic_insert() because
+	btr_cur_insert_if_possible() already failed above. */
 
 	err = btr_cur_pessimistic_insert(BTR_NO_UNDO_LOG_FLAG
 					 | BTR_NO_LOCKING_FLAG
diff --git a/storage/innodb_plugin/btr/btr0pcur.c b/storage/innodb_plugin/btr/btr0pcur.c
index 33700501bc5..92500d4fb10 100644
--- a/storage/innodb_plugin/btr/btr0pcur.c
+++ b/storage/innodb_plugin/btr/btr0pcur.c
@@ -336,44 +336,39 @@ btr_pcur_restore_position_func(
 	/* Restore the old search mode */
 	cursor->search_mode = old_mode;
 
-	if (btr_pcur_is_on_user_rec(cursor)) {
-		switch (cursor->rel_pos) {
-		case BTR_PCUR_ON:
-			if (!cmp_dtuple_rec(
-				    tuple, btr_pcur_get_rec(cursor),
-				    rec_get_offsets(btr_pcur_get_rec(cursor),
-						    index, NULL,
-						    ULINT_UNDEFINED, &heap))) {
-
-				/* We have to store the NEW value for
-				the modify clock, since the cursor can
-				now be on a different page! But we can
-				retain the value of old_rec */
-
-				cursor->block_when_stored =
-					btr_pcur_get_block(cursor);
-				cursor->modify_clock =
-					buf_block_get_modify_clock(
-						cursor->block_when_stored);
-				cursor->old_stored = BTR_PCUR_OLD_STORED;
-
-				mem_heap_free(heap);
-
-				return(TRUE);
-			}
-
-			break;
-		case BTR_PCUR_BEFORE:
-			page_cur_move_to_next(btr_pcur_get_page_cur(cursor));
-			break;
-		case BTR_PCUR_AFTER:
-			page_cur_move_to_prev(btr_pcur_get_page_cur(cursor));
-			break;
+	switch (cursor->rel_pos) {
+	case BTR_PCUR_ON:
+		if (btr_pcur_is_on_user_rec(cursor)
+		    && !cmp_dtuple_rec(
+			    tuple, btr_pcur_get_rec(cursor),
+			    rec_get_offsets(btr_pcur_get_rec(cursor),
+					    index, NULL,
+					    ULINT_UNDEFINED, &heap))) {
+
+			/* We have to store the NEW value for
+			the modify clock, since the cursor can
+			now be on a different page! But we can
+			retain the value of old_rec */
+
+			cursor->block_when_stored =
+				btr_pcur_get_block(cursor);
+			cursor->modify_clock =
+				buf_block_get_modify_clock(
+					cursor->block_when_stored);
+			cursor->old_stored = BTR_PCUR_OLD_STORED;
+
+			mem_heap_free(heap);
+
+			return(TRUE);
+		}
 #ifdef UNIV_DEBUG
-		default:
-			ut_error;
+		/* fall through */
+	case BTR_PCUR_BEFORE:
+	case BTR_PCUR_AFTER:
+		break;
+	default:
+		ut_error;
 #endif /* UNIV_DEBUG */
-		}
 	}
 
 	mem_heap_free(heap);
diff --git a/storage/innodb_plugin/buf/buf0buf.c b/storage/innodb_plugin/buf/buf0buf.c
index c2000d67303..3ec9ba246d2 100644
--- a/storage/innodb_plugin/buf/buf0buf.c
+++ b/storage/innodb_plugin/buf/buf0buf.c
@@ -269,14 +269,6 @@ read-ahead or flush occurs */
 UNIV_INTERN ibool		buf_debug_prints = FALSE;
 #endif /* UNIV_DEBUG */
 
-/** A chunk of buffers.  The buffer pool is allocated in chunks. */
-struct buf_chunk_struct{
-	ulint		mem_size;	/*!< allocated size of the chunk */
-	ulint		size;		/*!< size of frames[] and blocks[] */
-	void*		mem;		/*!< pointer to the memory area which
-					was allocated for the frames */
-	buf_block_t*	blocks;		/*!< array of buffer control blocks */
-};
 #endif /* !UNIV_HOTBACKUP */
 
 /********************************************************************//**
@@ -3623,6 +3615,133 @@ buf_get_free_list_len(void)
 
 	return(len);
 }
+
+/*******************************************************************//**
+Collect buffer pool stats information for a buffer pool. Also
+record aggregated stats if there are more than one buffer pool
+in the server */
+UNIV_INTERN
+void
+buf_stats_get_pool_info(
+/*====================*/
+	buf_pool_info_t*	pool_info)	/*!< in/out: buffer pool info
+						to fill */
+{
+	time_t			current_time;
+	double			time_elapsed;
+
+	buf_pool_mutex_enter();
+
+	pool_info->pool_size = buf_pool->curr_size;
+
+	pool_info->lru_len = UT_LIST_GET_LEN(buf_pool->LRU);
+
+	pool_info->old_lru_len = buf_pool->LRU_old_len;
+
+	pool_info->free_list_len = UT_LIST_GET_LEN(buf_pool->free);
+
+	pool_info->flush_list_len = UT_LIST_GET_LEN(buf_pool->flush_list);
+
+	pool_info->n_pend_unzip = UT_LIST_GET_LEN(buf_pool->unzip_LRU);
+
+	pool_info->n_pend_reads = buf_pool->n_pend_reads;
+
+	pool_info->n_pending_flush_lru =
+		 (buf_pool->n_flush[BUF_FLUSH_LRU]
+		  + buf_pool->init_flush[BUF_FLUSH_LRU]);
+
+	pool_info->n_pending_flush_list =
+		 (buf_pool->n_flush[BUF_FLUSH_LIST]
+		  + buf_pool->init_flush[BUF_FLUSH_LIST]);
+
+	pool_info->n_pending_flush_single_page =
+		 (buf_pool->n_flush[BUF_FLUSH_SINGLE_PAGE]
+		  + buf_pool->init_flush[BUF_FLUSH_SINGLE_PAGE]);
+
+	current_time = time(NULL);
+	time_elapsed = 0.001 + difftime(current_time,
+					buf_pool->last_printout_time);
+
+	pool_info->n_pages_made_young = buf_pool->stat.n_pages_made_young;
+
+	pool_info->n_pages_not_made_young =
+		buf_pool->stat.n_pages_not_made_young;
+
+	pool_info->n_pages_read = buf_pool->stat.n_pages_read;
+
+	pool_info->n_pages_created = buf_pool->stat.n_pages_created;
+
+	pool_info->n_pages_written = buf_pool->stat.n_pages_written;
+
+	pool_info->n_page_gets = buf_pool->stat.n_page_gets;
+
+	pool_info->n_ra_pages_read_rnd = buf_pool->stat.n_ra_pages_read_rnd;
+	pool_info->n_ra_pages_read = buf_pool->stat.n_ra_pages_read;
+
+	pool_info->n_ra_pages_evicted = buf_pool->stat.n_ra_pages_evicted;
+
+	pool_info->page_made_young_rate =
+		 (buf_pool->stat.n_pages_made_young
+		  - buf_pool->old_stat.n_pages_made_young) / time_elapsed;
+
+	pool_info->page_not_made_young_rate =
+		 (buf_pool->stat.n_pages_not_made_young
+		  - buf_pool->old_stat.n_pages_not_made_young) / time_elapsed;
+
+	pool_info->pages_read_rate =
+		(buf_pool->stat.n_pages_read
+		  - buf_pool->old_stat.n_pages_read) / time_elapsed;
+
+	pool_info->pages_created_rate =
+		(buf_pool->stat.n_pages_created
+		 - buf_pool->old_stat.n_pages_created) / time_elapsed;
+
+	pool_info->pages_written_rate =
+		(buf_pool->stat.n_pages_written
+		 - buf_pool->old_stat.n_pages_written) / time_elapsed;
+
+	pool_info->n_page_get_delta = buf_pool->stat.n_page_gets
+				      - buf_pool->old_stat.n_page_gets;
+
+	if (pool_info->n_page_get_delta) {
+		pool_info->page_read_delta = buf_pool->stat.n_pages_read
+					     - buf_pool->old_stat.n_pages_read;
+
+		pool_info->young_making_delta =
+			buf_pool->stat.n_pages_made_young
+			- buf_pool->old_stat.n_pages_made_young;
+
+		pool_info->not_young_making_delta =
+			buf_pool->stat.n_pages_not_made_young
+			- buf_pool->old_stat.n_pages_not_made_young;
+	}
+	pool_info->pages_readahead_rnd_rate =
+		 (buf_pool->stat.n_ra_pages_read_rnd
+		  - buf_pool->old_stat.n_ra_pages_read_rnd) / time_elapsed;
+
+
+	pool_info->pages_readahead_rate =
+		 (buf_pool->stat.n_ra_pages_read
+		  - buf_pool->old_stat.n_ra_pages_read) / time_elapsed;
+
+	pool_info->pages_evicted_rate =
+		(buf_pool->stat.n_ra_pages_evicted
+		 - buf_pool->old_stat.n_ra_pages_evicted) / time_elapsed;
+
+	pool_info->unzip_lru_len = UT_LIST_GET_LEN(buf_pool->unzip_LRU);
+
+	pool_info->io_sum = buf_LRU_stat_sum.io;
+
+	pool_info->io_cur = buf_LRU_stat_cur.io;
+
+	pool_info->unzip_sum = buf_LRU_stat_sum.unzip;
+
+	pool_info->unzip_cur = buf_LRU_stat_cur.unzip;
+
+	buf_refresh_io_stats();
+	buf_pool_mutex_exit();
+}
+
 #else /* !UNIV_HOTBACKUP */
 /********************************************************************//**
 Inits a page to the buffer buf_pool, for use in ibbackup --restore. */
@@ -3653,3 +3772,5 @@ buf_page_init_for_backup_restore(
 	}
 }
 #endif /* !UNIV_HOTBACKUP */
+
+
diff --git a/storage/innodb_plugin/handler/ha_innodb.cc b/storage/innodb_plugin/handler/ha_innodb.cc
index 0e954424365..cde44affdee 100644
--- a/storage/innodb_plugin/handler/ha_innodb.cc
+++ b/storage/innodb_plugin/handler/ha_innodb.cc
@@ -877,11 +877,23 @@ convert_error_code_to_mysql(
 	case DB_TABLE_NOT_FOUND:
 		return(HA_ERR_NO_SUCH_TABLE);
 
-	case DB_TOO_BIG_RECORD:
-		my_error(ER_TOO_BIG_ROWSIZE, MYF(0),
-			 page_get_free_space_of_empty(flags
-						      & DICT_TF_COMPACT) / 2);
+	case DB_TOO_BIG_RECORD: {
+		/* If prefix is true then a 768-byte prefix is stored
+		locally for BLOB fields. Refer to dict_table_get_format() */
+		bool prefix = ((flags & DICT_TF_FORMAT_MASK)
+		 	       >> DICT_TF_FORMAT_SHIFT) < UNIV_FORMAT_B;
+		my_printf_error(ER_TOO_BIG_ROWSIZE,
+			"Row size too large (> %lu). Changing some columns "
+			"to TEXT or BLOB %smay help. In current row "
+			"format, BLOB prefix of %d bytes is stored inline.",
+			MYF(0),
+			page_get_free_space_of_empty(flags &
+				DICT_TF_COMPACT) / 2,
+			prefix ? "or using ROW_FORMAT=DYNAMIC "
+			"or ROW_FORMAT=COMPRESSED ": "",
+			prefix ? DICT_MAX_INDEX_COL_LEN : 0);
 		return(HA_ERR_TO_BIG_ROW);
+	}
 
 	case DB_NO_SAVEPOINT:
 		return(HA_ERR_NO_SAVEPOINT);
@@ -7439,7 +7451,6 @@ ha_innobase::records_in_range(
 	mem_heap_t*	heap;
 
 	DBUG_ENTER("records_in_range");
-	DBUG_ASSERT(min_key || max_key);
 
 	ut_a(prebuilt->trx == thd_to_trx(ha_thd()));
 
@@ -11342,7 +11353,10 @@ i_s_innodb_lock_waits,
 i_s_innodb_cmp,
 i_s_innodb_cmp_reset,
 i_s_innodb_cmpmem,
-i_s_innodb_cmpmem_reset
+i_s_innodb_cmpmem_reset,
+i_s_innodb_buffer_page,
+i_s_innodb_buffer_page_lru,
+i_s_innodb_buffer_stats
 mysql_declare_plugin_end;
 
 /** @brief Initialize the default value of innodb_commit_concurrency.
diff --git a/storage/innodb_plugin/handler/i_s.cc b/storage/innodb_plugin/handler/i_s.cc
index b0149967e9b..4992cbc9c21 100644
--- a/storage/innodb_plugin/handler/i_s.cc
+++ b/storage/innodb_plugin/handler/i_s.cc
@@ -41,10 +41,90 @@ extern "C" {
 #include "buf0buf.h" /* for buf_pool and PAGE_ZIP_MIN_SIZE */
 #include "ha_prototypes.h" /* for innobase_convert_name() */
 #include "srv0start.h" /* for srv_was_started */
+#include "btr0btr.h"
+#include "log0log.h"
 }
 
 static const char plugin_author[] = "Innobase Oy";
 
+/** structure associates a name string with a file page type and/or buffer
+page state. */
+struct buffer_page_desc_str_struct{
+        const char*     type_str;       /*!< String explain the page
+                                        type/state */
+        ulint           type_value;     /*!< Page type or page state */
+};
+
+typedef struct buffer_page_desc_str_struct      buf_page_desc_str_t;
+
+/** Any states greater than FIL_PAGE_TYPE_LAST would be treated as unknown. */
+#define I_S_PAGE_TYPE_UNKNOWN           (FIL_PAGE_TYPE_LAST + 1)
+
+/** We also define I_S_PAGE_TYPE_INDEX as the Index Page's position
+in i_s_page_type[] array */
+#define I_S_PAGE_TYPE_INDEX             1
+
+/** Name string for File Page Types */
+static buf_page_desc_str_t      i_s_page_type[] = {
+        {"ALLOCATED", FIL_PAGE_TYPE_ALLOCATED},
+        {"INDEX", FIL_PAGE_INDEX},
+        {"UNDO_LOG", FIL_PAGE_UNDO_LOG},
+        {"INODE", FIL_PAGE_INODE},
+        {"IBUF_FREE_LIST", FIL_PAGE_IBUF_FREE_LIST},
+        {"IBUF_BITMAP", FIL_PAGE_IBUF_BITMAP},
+        {"SYSTEM", FIL_PAGE_TYPE_SYS},
+        {"TRX_SYSTEM", FIL_PAGE_TYPE_TRX_SYS},
+        {"FILE_SPACE_HEADER", FIL_PAGE_TYPE_FSP_HDR},
+        {"EXTENT_DESCRIPTOR", FIL_PAGE_TYPE_XDES},
+        {"BLOB", FIL_PAGE_TYPE_BLOB},
+        {"COMPRESSED_BLOB", FIL_PAGE_TYPE_ZBLOB},
+        {"COMPRESSED_BLOB2", FIL_PAGE_TYPE_ZBLOB2},
+        {"UNKNOWN", I_S_PAGE_TYPE_UNKNOWN}
+};
+
+/* Check if we can hold all page type in a 4 bit value */
+#if I_S_PAGE_TYPE_UNKNOWN > 1<<4
+# error "i_s_page_type[] is too large"
+#endif
+
+/** This structure defines information we will fetch from pages
+currently cached in the buffer pool. It will be used to populate
+table INFORMATION_SCHEMA.INNODB_BUFFER_PAGE */
+struct buffer_page_info_struct{
+        ulint           block_id;       /*!< Buffer Pool block ID */
+        unsigned        space_id:32;    /*!< Tablespace ID */
+        unsigned        page_num:32;    /*!< Page number/offset */
+        unsigned        access_time:32; /*!< Time of first access */
+        unsigned        flush_type:2;   /*!< Flush type */
+        unsigned        io_fix:2;       /*!< type of pending I/O operation */
+        unsigned        fix_count:19;   /*!< Count of how manyfold this block
+                                        is bufferfixed */
+        unsigned        hashed:1;       /*!< Whether hash index has been
+                                        built on this page */
+        unsigned        is_old:1;       /*!< TRUE if the block is in the old
+                                        blocks in buf_pool->LRU_old */
+        unsigned        freed_page_clock:31; /*!< the value of
+                                        buf_pool->freed_page_clock */
+        unsigned        zip_ssize:PAGE_ZIP_SSIZE_BITS;
+                                        /*!< Compressed page size */
+        unsigned        page_state:BUF_PAGE_STATE_BITS; /*!< Page state */
+        unsigned        page_type:4;    /*!< Page type */
+        unsigned        num_recs:UNIV_PAGE_SIZE_SHIFT-2;
+                                        /*!< Number of records on Page */
+        unsigned	data_size:UNIV_PAGE_SIZE_SHIFT;
+                                        /*!< Sum of the sizes of the records */
+        lsn_t		newest_mod;     /*!< Log sequence number of
+                                        the youngest modification */
+        lsn_t		oldest_mod;     /*!< Log sequence number of
+                                        the oldest modification */
+        dulint		index_id;       /*!< Index ID if a index page */
+};
+
+typedef struct buffer_page_info_struct  buf_page_info_t;
+
+/** maximum number of buffer page info we would cache. */
+#define MAX_BUF_INFO_CACHED             10000
+
 #define OK(expr)		\
 	if ((expr) != 0) {	\
 		DBUG_RETURN(1);	\
@@ -1576,3 +1656,1675 @@ i_s_common_deinit(
 
 	DBUG_RETURN(0);
 }
+
+
+/* Fields of the dynamic table INNODB_BUFFER_POOL_STATS. */
+static ST_FIELD_INFO	i_s_innodb_buffer_stats_fields_info[] =
+{
+#define IDX_BUF_STATS_POOL_SIZE		0
+	{STRUCT_FLD(field_name,		"POOL_SIZE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_FREE_BUFFERS	1
+	{STRUCT_FLD(field_name,		"FREE_BUFFERS"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_LRU_LEN		2
+	{STRUCT_FLD(field_name,		"DATABASE_PAGES"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_OLD_LRU_LEN	3
+	{STRUCT_FLD(field_name,		"OLD_DATABASE_PAGES"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_FLUSH_LIST_LEN	4
+	{STRUCT_FLD(field_name,		"MODIFIED_DATABASE_PAGES"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_PENDING_ZIP	5
+	{STRUCT_FLD(field_name,		"PENDING_DECOMPRESS"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_PENDING_READ	6
+	{STRUCT_FLD(field_name,		"PENDING_READS"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_FLUSH_LRU		7
+	{STRUCT_FLD(field_name,		"PENDING_FLUSH_LRU"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_FLUSH_LIST	8
+	{STRUCT_FLD(field_name,		"PENDING_FLUSH_LIST"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_PAGE_YOUNG	9
+	{STRUCT_FLD(field_name,		"PAGES_MADE_YOUNG"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_PAGE_NOT_YOUNG	10
+	{STRUCT_FLD(field_name,		"PAGES_NOT_MADE_YOUNG"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define	IDX_BUF_STATS_PAGE_YOUNG_RATE	11
+	{STRUCT_FLD(field_name,		"PAGES_MADE_YOUNG_RATE"),
+	 STRUCT_FLD(field_length,	MAX_FLOAT_STR_LENGTH),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_FLOAT),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define	IDX_BUF_STATS_PAGE_NOT_YOUNG_RATE 12
+	{STRUCT_FLD(field_name,		"PAGES_MADE_NOT_YOUNG_RATE"),
+	 STRUCT_FLD(field_length,	MAX_FLOAT_STR_LENGTH),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_FLOAT),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_PAGE_READ		13
+	{STRUCT_FLD(field_name,		"NUMBER_PAGES_READ"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_PAGE_CREATED	14
+	{STRUCT_FLD(field_name,		"NUMBER_PAGES_CREATED"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_PAGE_WRITTEN	15
+	{STRUCT_FLD(field_name,		"NUMBER_PAGES_WRITTEN"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define	IDX_BUF_STATS_PAGE_READ_RATE	16
+	{STRUCT_FLD(field_name,		"PAGES_READ_RATE"),
+	 STRUCT_FLD(field_length,	MAX_FLOAT_STR_LENGTH),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_FLOAT),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define	IDX_BUF_STATS_PAGE_CREATE_RATE	17
+	{STRUCT_FLD(field_name,		"PAGES_CREATE_RATE"),
+	 STRUCT_FLD(field_length,	MAX_FLOAT_STR_LENGTH),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_FLOAT),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define	IDX_BUF_STATS_PAGE_WRITTEN_RATE	18
+	{STRUCT_FLD(field_name,		"PAGES_WRITTEN_RATE"),
+	 STRUCT_FLD(field_length,	MAX_FLOAT_STR_LENGTH),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_FLOAT),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_GET		19
+	{STRUCT_FLD(field_name,		"NUMBER_PAGES_GET"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_HIT_RATE		20
+	{STRUCT_FLD(field_name,		"HIT_RATE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_MADE_YOUNG_PCT	21
+	{STRUCT_FLD(field_name,		"YOUNG_MAKE_PER_THOUSAND_GETS"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_NOT_MADE_YOUNG_PCT 22
+	{STRUCT_FLD(field_name,		"NOT_YOUNG_MAKE_PER_THOUSAND_GETS"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_READ_AHREAD	23
+	{STRUCT_FLD(field_name,		"NUMBER_PAGES_READ_AHEAD"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_READ_AHEAD_EVICTED 24
+	{STRUCT_FLD(field_name,		"NUMBER_READ_AHEAD_EVICTED"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define	IDX_BUF_STATS_READ_AHEAD_RATE	25
+	{STRUCT_FLD(field_name,		"READ_AHEAD_RATE"),
+	 STRUCT_FLD(field_length,	MAX_FLOAT_STR_LENGTH),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_FLOAT),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define	IDX_BUF_STATS_READ_AHEAD_EVICT_RATE 26
+	{STRUCT_FLD(field_name,		"READ_AHEAD_EVICTED_RATE"),
+	 STRUCT_FLD(field_length,	MAX_FLOAT_STR_LENGTH),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_FLOAT),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_LRU_IO_SUM	27
+	{STRUCT_FLD(field_name,		"LRU_IO_TOTAL"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_LRU_IO_CUR	28
+	{STRUCT_FLD(field_name,		"LRU_IO_CURRENT"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_UNZIP_SUM		29
+	{STRUCT_FLD(field_name,		"UNCOMPRESS_TOTAL"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_UNZIP_CUR		30
+	{STRUCT_FLD(field_name,		"UNCOMPRESS_CURRENT"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+	END_OF_ST_FIELD_INFO
+};
+
+/*******************************************************************//**
+Fill Information Schema table INNODB_BUFFER_POOL_STATS for a particular
+buffer pool
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_stats_fill(
+/*==================*/
+	THD*			thd,		/*!< in: thread */
+	TABLE_LIST*		tables,		/*!< in/out: tables to fill */
+	const buf_pool_info_t*	info)		/*!< in: buffer pool
+						information */
+{
+	TABLE*			table;
+	Field**			fields;
+
+	DBUG_ENTER("i_s_innodb_stats_fill");
+
+	table = tables->table;
+
+	fields = table->field;
+
+	OK(fields[IDX_BUF_STATS_POOL_SIZE]->store(info->pool_size));
+
+	OK(fields[IDX_BUF_STATS_LRU_LEN]->store(info->lru_len));
+
+	OK(fields[IDX_BUF_STATS_OLD_LRU_LEN]->store(info->old_lru_len));
+
+	OK(fields[IDX_BUF_STATS_FREE_BUFFERS]->store(info->free_list_len));
+
+	OK(fields[IDX_BUF_STATS_FLUSH_LIST_LEN]->store(
+		info->flush_list_len));
+
+	OK(fields[IDX_BUF_STATS_PENDING_ZIP]->store(info->n_pend_unzip));
+
+	OK(fields[IDX_BUF_STATS_PENDING_READ]->store(info->n_pend_reads));
+
+	OK(fields[IDX_BUF_STATS_FLUSH_LRU]->store(info->n_pending_flush_lru));
+
+	OK(fields[IDX_BUF_STATS_FLUSH_LIST]->store(info->n_pending_flush_list));
+
+	OK(fields[IDX_BUF_STATS_PAGE_YOUNG]->store(info->n_pages_made_young));
+
+	OK(fields[IDX_BUF_STATS_PAGE_NOT_YOUNG]->store(
+		info->n_pages_not_made_young));
+
+	OK(fields[IDX_BUF_STATS_PAGE_YOUNG_RATE]->store(
+		info->page_made_young_rate));
+
+	OK(fields[IDX_BUF_STATS_PAGE_NOT_YOUNG_RATE]->store(
+		info->page_not_made_young_rate));
+
+	OK(fields[IDX_BUF_STATS_PAGE_READ]->store(info->n_pages_read));
+
+	OK(fields[IDX_BUF_STATS_PAGE_CREATED]->store(info->n_pages_created));
+
+	OK(fields[IDX_BUF_STATS_PAGE_WRITTEN]->store(info->n_pages_written));
+
+	OK(fields[IDX_BUF_STATS_GET]->store(info->n_page_gets));
+
+	OK(fields[IDX_BUF_STATS_PAGE_READ_RATE]->store(info->pages_read_rate));
+
+	OK(fields[IDX_BUF_STATS_PAGE_CREATE_RATE]->store(info->pages_created_rate));
+
+	OK(fields[IDX_BUF_STATS_PAGE_WRITTEN_RATE]->store(info->pages_written_rate));
+
+	if (info->n_page_get_delta) {
+		OK(fields[IDX_BUF_STATS_HIT_RATE]->store(
+			1000 - (1000 * info->page_read_delta
+				/ info->n_page_get_delta)));
+
+		OK(fields[IDX_BUF_STATS_MADE_YOUNG_PCT]->store(
+			1000 * info->young_making_delta
+			/ info->n_page_get_delta));
+
+		OK(fields[IDX_BUF_STATS_NOT_MADE_YOUNG_PCT]->store(
+			1000 * info->not_young_making_delta
+			/ info->n_page_get_delta));
+	} else {
+		OK(fields[IDX_BUF_STATS_HIT_RATE]->store(0));
+		OK(fields[IDX_BUF_STATS_MADE_YOUNG_PCT]->store(0));
+		OK(fields[IDX_BUF_STATS_NOT_MADE_YOUNG_PCT]->store(0));
+	}
+
+	OK(fields[IDX_BUF_STATS_READ_AHREAD]->store(info->n_ra_pages_read));
+
+	OK(fields[IDX_BUF_STATS_READ_AHEAD_EVICTED]->store(
+		info->n_ra_pages_evicted));
+
+	OK(fields[IDX_BUF_STATS_READ_AHEAD_RATE]->store(
+		info->pages_readahead_rate));
+
+	OK(fields[IDX_BUF_STATS_READ_AHEAD_EVICT_RATE]->store(
+		info->pages_evicted_rate));
+
+	OK(fields[IDX_BUF_STATS_LRU_IO_SUM]->store(info->io_sum));
+
+	OK(fields[IDX_BUF_STATS_LRU_IO_CUR]->store(info->io_cur));
+
+	OK(fields[IDX_BUF_STATS_UNZIP_SUM]->store(info->unzip_sum));
+
+	OK(fields[IDX_BUF_STATS_UNZIP_CUR]->store( info->unzip_cur));
+
+	DBUG_RETURN(schema_table_store_record(thd, table));
+}
+
+/*******************************************************************//**
+This is the function that loops through each buffer pool and fetch buffer
+pool stats to information schema  table: I_S_INNODB_BUFFER_POOL_STATS
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buffer_stats_fill_table(
+/*===============================*/
+	THD*		thd,		/*!< in: thread */
+	TABLE_LIST*	tables,		/*!< in/out: tables to fill */
+	Item*		)		/*!< in: condition (ignored) */
+{
+	int			status	= 0;
+	buf_pool_info_t*	pool_info;
+
+	DBUG_ENTER("i_s_innodb_buffer_fill_general");
+
+	/* Only allow the PROCESS privilege holder to access the stats */
+	if (check_global_access(thd, PROCESS_ACL)) {
+		DBUG_RETURN(0);
+	}
+
+	pool_info = (buf_pool_info_t*) mem_zalloc(sizeof *pool_info);
+
+	/* Fetch individual buffer pool info */
+	buf_stats_get_pool_info(pool_info);
+	status = i_s_innodb_stats_fill(thd, tables, pool_info);
+
+	mem_free(pool_info);
+
+	DBUG_RETURN(status);
+}
+
+/*******************************************************************//**
+Bind the dynamic table INFORMATION_SCHEMA.INNODB_BUFFER_POOL_STATS.
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buffer_pool_stats_init(
+/*==============================*/
+	void*	p)	/*!< in/out: table schema object */
+{
+	ST_SCHEMA_TABLE*	schema;
+
+	DBUG_ENTER("i_s_innodb_buffer_pool_stats_init");
+
+	schema = reinterpret_cast<ST_SCHEMA_TABLE*>(p);
+
+	schema->fields_info = i_s_innodb_buffer_stats_fields_info;
+	schema->fill_table = i_s_innodb_buffer_stats_fill_table;
+
+	DBUG_RETURN(0);
+}
+
+UNIV_INTERN struct st_mysql_plugin	i_s_innodb_buffer_stats =
+{
+	/* the plugin type (a MYSQL_XXX_PLUGIN value) */
+	/* int */
+	STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
+
+	/* pointer to type-specific plugin descriptor */
+	/* void* */
+	STRUCT_FLD(info, &i_s_info),
+
+	/* plugin name */
+	/* const char* */
+	STRUCT_FLD(name, "INNODB_BUFFER_POOL_STATS"),
+
+	/* plugin author (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(author, plugin_author),
+
+	/* general descriptive text (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(descr, "InnoDB Buffer Pool Statistics Information "),
+
+	/* the plugin license (PLUGIN_LICENSE_XXX) */
+	/* int */
+	STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
+
+	/* the function to invoke when plugin is loaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(init, i_s_innodb_buffer_pool_stats_init),
+
+	/* the function to invoke when plugin is unloaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(deinit, i_s_common_deinit),
+
+	/* plugin version (for SHOW PLUGINS) */
+	/* unsigned int */
+	STRUCT_FLD(version, INNODB_VERSION_SHORT),
+
+	/* struct st_mysql_show_var* */
+	STRUCT_FLD(status_vars, NULL),
+
+	/* struct st_mysql_sys_var** */
+	STRUCT_FLD(system_vars, NULL),
+
+	/* reserved for dependency checking */
+	/* void* */
+	STRUCT_FLD(__reserved1, NULL),
+};
+
+/* Fields of the dynamic table INNODB_BUFFER_POOL_PAGE. */
+static ST_FIELD_INFO	i_s_innodb_buffer_page_fields_info[] =
+{
+#define IDX_BUFFER_BLOCK_ID		0
+	{STRUCT_FLD(field_name,		"BLOCK_ID"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_SPACE		1
+	{STRUCT_FLD(field_name,		"SPACE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_NUM		2
+	{STRUCT_FLD(field_name,		"PAGE_NUMBER"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_TYPE		3
+	{STRUCT_FLD(field_name,		"PAGE_TYPE"),
+	 STRUCT_FLD(field_length,	64),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_FLUSH_TYPE	4
+	{STRUCT_FLD(field_name,		"FLUSH_TYPE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_FIX_COUNT	5
+	{STRUCT_FLD(field_name,		"FIX_COUNT"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_HASHED		6
+	{STRUCT_FLD(field_name,		"IS_HASHED"),
+	 STRUCT_FLD(field_length,	3),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_NEWEST_MOD	7
+	{STRUCT_FLD(field_name,		"NEWEST_MODIFICATION"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_OLDEST_MOD	8
+	{STRUCT_FLD(field_name,		"OLDEST_MODIFICATION"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_ACCESS_TIME	 9
+	{STRUCT_FLD(field_name,		"ACCESS_TIME"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_TABLE_NAME	10
+	{STRUCT_FLD(field_name,		"TABLE_NAME"),
+	 STRUCT_FLD(field_length,	1024),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_INDEX_NAME	11
+	{STRUCT_FLD(field_name,		"INDEX_NAME"),
+	 STRUCT_FLD(field_length,	1024),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_NUM_RECS	12
+	{STRUCT_FLD(field_name,		"NUMBER_RECORDS"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_DATA_SIZE	13
+	{STRUCT_FLD(field_name,		"DATA_SIZE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_ZIP_SIZE	14
+	{STRUCT_FLD(field_name,		"COMPRESSED_SIZE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_STATE		15
+	{STRUCT_FLD(field_name,		"PAGE_STATE"),
+	 STRUCT_FLD(field_length,	64),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_IO_FIX		16
+	{STRUCT_FLD(field_name,		"IO_FIX"),
+	 STRUCT_FLD(field_length,	64),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_IS_OLD		17
+	{STRUCT_FLD(field_name,		"IS_OLD"),
+	 STRUCT_FLD(field_length,	3),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_FREE_CLOCK	18
+	{STRUCT_FLD(field_name,		"FREE_PAGE_CLOCK"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+	END_OF_ST_FIELD_INFO
+};
+
+/*******************************************************************//**
+Fill Information Schema table INNODB_BUFFER_PAGE with information
+cached in the buf_page_info_t array
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buffer_page_fill(
+/*========================*/
+	THD*			thd,		/*!< in: thread */
+	TABLE_LIST*		tables,		/*!< in/out: tables to fill */
+	const buf_page_info_t*	info_array,	/*!< in: array cached page
+						info */
+	ulint			num_page,	/*!< in: number of page info
+						 cached */
+	mem_heap_t*		heap)		/*!< in: temp heap memory */
+{
+	TABLE*			table;
+	Field**			fields;
+
+	DBUG_ENTER("i_s_innodb_buffer_page_fill");
+
+	table = tables->table;
+
+	fields = table->field;
+
+	/* Iterate through the cached array and fill the I_S table rows */
+	for (ulint i = 0; i < num_page; i++) {
+		const buf_page_info_t*	page_info;
+		const char*		table_name;
+		const char*		index_name;
+		const char*		state_str;
+		enum buf_page_state	state;
+
+		page_info = info_array + i;
+
+		table_name = NULL;
+		index_name = NULL;
+		state_str = NULL;
+
+		OK(fields[IDX_BUFFER_BLOCK_ID]->store(page_info->block_id));
+
+		OK(fields[IDX_BUFFER_PAGE_SPACE]->store(page_info->space_id));
+
+		OK(fields[IDX_BUFFER_PAGE_NUM]->store(page_info->page_num));
+
+		OK(field_store_string(
+			fields[IDX_BUFFER_PAGE_TYPE],
+			i_s_page_type[page_info->page_type].type_str));
+
+		OK(fields[IDX_BUFFER_PAGE_FLUSH_TYPE]->store(
+			page_info->flush_type));
+
+		OK(fields[IDX_BUFFER_PAGE_FIX_COUNT]->store(
+			page_info->fix_count));
+
+		if (page_info->hashed) {
+			OK(field_store_string(
+				fields[IDX_BUFFER_PAGE_HASHED], "YES"));
+		} else {
+			OK(field_store_string(
+				fields[IDX_BUFFER_PAGE_HASHED], "NO"));
+		}
+
+		OK(fields[IDX_BUFFER_PAGE_NEWEST_MOD]->store(
+			(longlong) page_info->newest_mod, true));
+
+		OK(fields[IDX_BUFFER_PAGE_OLDEST_MOD]->store(
+			(longlong) page_info->oldest_mod, true));
+
+		OK(fields[IDX_BUFFER_PAGE_ACCESS_TIME]->store(
+			page_info->access_time));
+
+		/* If this is an index page, fetch the index name
+		and table name */
+		if (page_info->page_type == I_S_PAGE_TYPE_INDEX) {
+			const dict_index_t*	index;
+
+			mutex_enter(&dict_sys->mutex);
+			index = dict_index_get_if_in_cache_low(
+				page_info->index_id);
+
+			/* Copy the index/table name under mutex. We
+			do not want to hold the InnoDB mutex while
+			filling the IS table */
+			if (index) {
+				const char*	name_ptr = index->name;
+
+				if (name_ptr[0] == TEMP_INDEX_PREFIX) {
+					name_ptr++;
+				}
+
+				index_name = mem_heap_strdup(heap, name_ptr);
+
+				table_name = mem_heap_strdup(heap,
+							     index->table_name);
+
+			}
+
+			mutex_exit(&dict_sys->mutex);
+		}
+
+		OK(field_store_string(
+			fields[IDX_BUFFER_PAGE_TABLE_NAME], table_name));
+
+		OK(field_store_string(
+			fields[IDX_BUFFER_PAGE_INDEX_NAME], index_name));
+
+		OK(fields[IDX_BUFFER_PAGE_NUM_RECS]->store(
+			page_info->num_recs));
+
+		OK(fields[IDX_BUFFER_PAGE_DATA_SIZE]->store(
+			page_info->data_size));
+
+		OK(fields[IDX_BUFFER_PAGE_ZIP_SIZE]->store(
+			page_info->zip_ssize
+			? (PAGE_ZIP_MIN_SIZE >> 1) << page_info->zip_ssize
+			: 0));
+
+#if BUF_PAGE_STATE_BITS > 3
+# error "BUF_PAGE_STATE_BITS > 3, please ensure that all 1<<BUF_PAGE_STATE_BITS values are checked for"
+#endif
+		state = static_cast<enum buf_page_state>(page_info->page_state);
+
+		switch (state) {
+		/* First three states are for compression pages and
+		are not states we would get as we scan pages through
+		buffer blocks */
+		case BUF_BLOCK_ZIP_FREE:
+		case BUF_BLOCK_ZIP_PAGE:
+		case BUF_BLOCK_ZIP_DIRTY:
+			state_str = NULL;
+			break;
+		case BUF_BLOCK_NOT_USED:
+			state_str = "NOT_USED";
+			break;
+		case BUF_BLOCK_READY_FOR_USE:
+			state_str = "READY_FOR_USE";
+			break;
+		case BUF_BLOCK_FILE_PAGE:
+			state_str = "FILE_PAGE";
+			break;
+		case BUF_BLOCK_MEMORY:
+			state_str = "MEMORY";
+			break;
+		case BUF_BLOCK_REMOVE_HASH:
+			state_str = "REMOVE_HASH";
+			break;
+		};
+
+		OK(field_store_string(fields[IDX_BUFFER_PAGE_STATE],
+				      state_str));
+
+		switch (page_info->io_fix) {
+		case BUF_IO_NONE:
+			OK(field_store_string(fields[IDX_BUFFER_PAGE_IO_FIX],
+					      "IO_NONE"));
+			break;
+		case BUF_IO_READ:
+			OK(field_store_string(fields[IDX_BUFFER_PAGE_IO_FIX],
+					      "IO_READ"));
+			break;
+		case BUF_IO_WRITE:
+			OK(field_store_string(fields[IDX_BUFFER_PAGE_IO_FIX],
+					      "IO_WRITE"));
+			break;
+		}
+
+		OK(field_store_string(fields[IDX_BUFFER_PAGE_IS_OLD],
+				      (page_info->is_old) ? "YES" : "NO"));
+
+		OK(fields[IDX_BUFFER_PAGE_FREE_CLOCK]->store(
+			page_info->freed_page_clock));
+
+		if (schema_table_store_record(thd, table)) {
+			DBUG_RETURN(1);
+		}
+	}
+
+	DBUG_RETURN(0);
+}
+
+/*******************************************************************//**
+Set appropriate page type to a buf_page_info_t structure */
+static
+void
+i_s_innodb_set_page_type(
+/*=====================*/
+	buf_page_info_t*page_info,	/*!< in/out: structure to fill with
+					scanned info */
+	ulint		page_type,	/*!< in: page type */
+	const byte*	frame)		/*!< in: buffer frame */
+{
+	if (page_type == FIL_PAGE_INDEX) {
+		const page_t*	page = (const page_t*) frame;
+
+		/* FIL_PAGE_INDEX is a bit special, its value
+		is defined as 17855, so we cannot use FIL_PAGE_INDEX
+		to index into i_s_page_type[] array, its array index
+		in the i_s_page_type[] array is I_S_PAGE_TYPE_INDEX
+		(1) */
+		page_info->page_type = I_S_PAGE_TYPE_INDEX;
+
+		page_info->index_id = btr_page_get_index_id(page);
+
+		page_info->data_size = (ulint)(page_header_get_field(
+			page, PAGE_HEAP_TOP) - (page_is_comp(page)
+						? PAGE_NEW_SUPREMUM_END
+						: PAGE_OLD_SUPREMUM_END)
+			- page_header_get_field(page, PAGE_GARBAGE));
+
+		page_info->num_recs = page_get_n_recs(page);
+	} else if (page_type >= I_S_PAGE_TYPE_UNKNOWN) {
+		/* Encountered an unknown page type */
+		page_info->page_type = I_S_PAGE_TYPE_UNKNOWN;
+	} else {
+		/* Make sure we get the right index into the
+		i_s_page_type[] array */
+		ut_a(page_type == i_s_page_type[page_type].type_value);
+
+		page_info->page_type = page_type;
+	}
+
+	if (page_info->page_type == FIL_PAGE_TYPE_ZBLOB
+	    || page_info->page_type == FIL_PAGE_TYPE_ZBLOB2) {
+		page_info->page_num = mach_read_from_4(
+			frame + FIL_PAGE_OFFSET);
+		page_info->space_id = mach_read_from_4(
+			frame + FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID);
+	}
+}
+
+/*******************************************************************//**
+Scans pages in the buffer cache, and collect their general information
+into the buf_page_info_t array which is zero-filled. So any fields
+that are not initialized in the function will default to 0 */
+static
+void
+i_s_innodb_buffer_page_get_info(
+/*============================*/
+	const buf_page_t*bpage,		/*!< in: buffer pool page to scan */
+	ulint		pos,		/*!< in: buffer block position in
+					buffer pool or in the LRU list */
+	buf_page_info_t*page_info)	/*!< in: zero filled info structure;
+					out: structure filled with scanned
+					info */
+{
+	page_info->block_id = pos;
+
+	page_info->page_state = buf_page_get_state(bpage);
+
+	/* Only fetch information for buffers that map to a tablespace,
+	that is, buffer page with state BUF_BLOCK_ZIP_PAGE,
+	BUF_BLOCK_ZIP_DIRTY or BUF_BLOCK_FILE_PAGE */
+	if (buf_page_in_file(bpage)) {
+		const byte*	frame;
+		ulint		page_type;
+
+		page_info->space_id = buf_page_get_space(bpage);
+
+		page_info->page_num = buf_page_get_page_no(bpage);
+
+		page_info->flush_type = bpage->flush_type;
+
+		page_info->fix_count = bpage->buf_fix_count;
+
+		page_info->newest_mod = bpage->newest_modification;
+
+		page_info->oldest_mod = bpage->oldest_modification;
+
+		page_info->access_time = bpage->access_time;
+
+		page_info->zip_ssize = bpage->zip.ssize;
+
+		page_info->io_fix = bpage->io_fix;
+
+		page_info->is_old = bpage->old;
+
+		page_info->freed_page_clock = bpage->freed_page_clock;
+
+		if (page_info->page_state == BUF_BLOCK_FILE_PAGE) {
+			const buf_block_t*block;
+
+			block = reinterpret_cast<const buf_block_t*>(bpage);
+			frame = block->frame;
+			page_info->hashed = (block->index != NULL);
+		} else {
+			ut_ad(page_info->zip_ssize);
+			frame = bpage->zip.data;
+		}
+
+		page_type = fil_page_get_type(frame);
+
+		i_s_innodb_set_page_type(page_info, page_type, frame);
+	} else {
+		page_info->page_type = I_S_PAGE_TYPE_UNKNOWN;
+	}
+}
+
+/*******************************************************************//**
+This is the function that goes through each block of the buffer pool
+and fetch information to information schema tables: INNODB_BUFFER_PAGE.
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_fill_buffer_pool(
+/*========================*/
+	THD*			thd,		/*!< in: thread */
+	TABLE_LIST*		tables)		/*!< in/out: tables to fill */
+{
+	int			status	= 0;
+	mem_heap_t*		heap;
+
+	DBUG_ENTER("i_s_innodb_fill_buffer_pool");
+
+	heap = mem_heap_create(10000);
+
+	/* Go through each chunk of buffer pool. Currently, we only
+	have one single chunk for each buffer pool */
+	for (ulint n = 0; n < buf_pool->n_chunks; n++) {
+		const buf_block_t*	block;
+		ulint			n_blocks;
+		buf_page_info_t*	info_buffer;
+		ulint			num_page;
+		ulint			mem_size;
+		ulint			chunk_size;
+		ulint			num_to_process = 0;
+		ulint			block_id = 0;
+
+		/* Get buffer block of the nth chunk */
+		block = buf_get_nth_chunk_block(buf_pool, n, &chunk_size);
+		num_page = 0;
+
+		while (chunk_size > 0) {
+			/* we cache maximum MAX_BUF_INFO_CACHED number of
+			buffer page info */
+			num_to_process = ut_min(chunk_size,
+						MAX_BUF_INFO_CACHED);
+
+			mem_size = num_to_process * sizeof(buf_page_info_t);
+
+			/* For each chunk, we'll pre-allocate information
+			structures to cache the page information read from
+			the buffer pool. Doing so before obtain any mutex */
+			info_buffer = (buf_page_info_t*) mem_heap_zalloc(
+				heap, mem_size);
+
+			/* Obtain appropriate mutexes. Since this is diagnostic
+			buffer pool info printout, we are not required to
+			preserve the overall consistency, so we can
+			release mutex periodically */
+			buf_pool_mutex_enter();
+
+			/* GO through each block in the chunk */
+			for (n_blocks = num_to_process; n_blocks--; block++) {
+				i_s_innodb_buffer_page_get_info(
+					&block->page, block_id,
+					info_buffer + num_page);
+				block_id++;
+				num_page++;
+			}
+
+			buf_pool_mutex_exit();
+
+			/* Fill in information schema table with information
+			just collected from the buffer chunk scan */
+			status = i_s_innodb_buffer_page_fill(
+				thd, tables, info_buffer,
+				num_page, heap);
+
+			/* If something goes wrong, break and return */
+			if (status) {
+				break;
+			}
+
+			mem_heap_empty(heap);
+			chunk_size -= num_to_process;
+			num_page = 0;
+		}
+	}
+
+	mem_heap_free(heap);
+
+	DBUG_RETURN(status);
+}
+
+/*******************************************************************//**
+Fill page information for pages in InnoDB buffer pool to the
+dynamic table INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buffer_page_fill_table(
+/*==============================*/
+	THD*		thd,		/*!< in: thread */
+	TABLE_LIST*	tables,		/*!< in/out: tables to fill */
+	Item*		)		/*!< in: condition (ignored) */
+{
+	int	status	= 0;
+
+	DBUG_ENTER("i_s_innodb_buffer_page_fill_table");
+
+	/* deny access to user without PROCESS privilege */
+	if (check_global_access(thd, PROCESS_ACL)) {
+		DBUG_RETURN(0);
+	}
+
+	/* Fetch information from pages in this buffer pool,
+	and fill the corresponding I_S table */
+	status = i_s_innodb_fill_buffer_pool(thd, tables);
+
+	DBUG_RETURN(status);
+}
+
+/*******************************************************************//**
+Bind the dynamic table INFORMATION_SCHEMA.INNODB_BUFFER_PAGE.
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buffer_page_init(
+/*========================*/
+	void*	p)	/*!< in/out: table schema object */
+{
+	ST_SCHEMA_TABLE*	schema;
+
+	DBUG_ENTER("i_s_innodb_buffer_page_init");
+
+	schema = reinterpret_cast<ST_SCHEMA_TABLE*>(p);
+
+	schema->fields_info = i_s_innodb_buffer_page_fields_info;
+	schema->fill_table = i_s_innodb_buffer_page_fill_table;
+
+	DBUG_RETURN(0);
+}
+
+UNIV_INTERN struct st_mysql_plugin	i_s_innodb_buffer_page =
+{
+	/* the plugin type (a MYSQL_XXX_PLUGIN value) */
+	/* int */
+	STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
+
+	/* pointer to type-specific plugin descriptor */
+	/* void* */
+	STRUCT_FLD(info, &i_s_info),
+
+	/* plugin name */
+	/* const char* */
+	STRUCT_FLD(name, "INNODB_BUFFER_PAGE"),
+
+	/* plugin author (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(author, plugin_author),
+
+	/* general descriptive text (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(descr, "InnoDB Buffer Page Information"),
+
+	/* the plugin license (PLUGIN_LICENSE_XXX) */
+	/* int */
+	STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
+
+	/* the function to invoke when plugin is loaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(init, i_s_innodb_buffer_page_init),
+
+	/* the function to invoke when plugin is unloaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(deinit, i_s_common_deinit),
+
+	/* plugin version (for SHOW PLUGINS) */
+	/* unsigned int */
+	STRUCT_FLD(version, INNODB_VERSION_SHORT),
+
+	/* struct st_mysql_show_var* */
+	STRUCT_FLD(status_vars, NULL),
+
+	/* struct st_mysql_sys_var** */
+	STRUCT_FLD(system_vars, NULL),
+
+	/* reserved for dependency checking */
+	/* void* */
+	STRUCT_FLD(__reserved1, NULL),
+};
+
+static ST_FIELD_INFO	i_s_innodb_buf_page_lru_fields_info[] =
+{
+#define IDX_BUF_LRU_POS			0
+	{STRUCT_FLD(field_name,		"LRU_POSITION"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_SPACE		1
+	{STRUCT_FLD(field_name,		"SPACE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_NUM		2
+	{STRUCT_FLD(field_name,		"PAGE_NUMBER"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_TYPE		3
+	{STRUCT_FLD(field_name,		"PAGE_TYPE"),
+	 STRUCT_FLD(field_length,	64),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_FLUSH_TYPE	4
+	{STRUCT_FLD(field_name,		"FLUSH_TYPE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_FIX_COUNT	5
+	{STRUCT_FLD(field_name,		"FIX_COUNT"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_HASHED		6
+	{STRUCT_FLD(field_name,		"IS_HASHED"),
+	 STRUCT_FLD(field_length,	3),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_NEWEST_MOD	7
+	{STRUCT_FLD(field_name,		"NEWEST_MODIFICATION"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_OLDEST_MOD	8
+	{STRUCT_FLD(field_name,		"OLDEST_MODIFICATION"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_ACCESS_TIME	9
+	{STRUCT_FLD(field_name,		"ACCESS_TIME"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_TABLE_NAME	10
+	{STRUCT_FLD(field_name,		"TABLE_NAME"),
+	 STRUCT_FLD(field_length,	1024),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_INDEX_NAME	11
+	{STRUCT_FLD(field_name,		"INDEX_NAME"),
+	 STRUCT_FLD(field_length,	1024),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_NUM_RECS	12
+	{STRUCT_FLD(field_name,		"NUMBER_RECORDS"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_DATA_SIZE	13
+	{STRUCT_FLD(field_name,		"DATA_SIZE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_ZIP_SIZE	14
+	{STRUCT_FLD(field_name,		"COMPRESSED_SIZE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_STATE		15
+	{STRUCT_FLD(field_name,		"COMPRESSED"),
+	 STRUCT_FLD(field_length,	3),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_IO_FIX		16
+	{STRUCT_FLD(field_name,		"IO_FIX"),
+	 STRUCT_FLD(field_length,	64),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_IS_OLD		17
+	{STRUCT_FLD(field_name,		"IS_OLD"),
+	 STRUCT_FLD(field_length,	3),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_FREE_CLOCK	18
+	{STRUCT_FLD(field_name,		"FREE_PAGE_CLOCK"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+	END_OF_ST_FIELD_INFO
+};
+
+/*******************************************************************//**
+Fill Information Schema table INNODB_BUFFER_PAGE_LRU with information
+cached in the buf_page_info_t array
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buf_page_lru_fill(
+/*=========================*/
+	THD*			thd,		/*!< in: thread */
+	TABLE_LIST*		tables,		/*!< in/out: tables to fill */
+	const buf_page_info_t*	info_array,	/*!< in: array cached page
+						info */
+	ulint			num_page)	/*!< in: number of page info
+						 cached */
+{
+	TABLE*			table;
+	Field**			fields;
+	mem_heap_t*		heap;
+
+	DBUG_ENTER("i_s_innodb_buf_page_lru_fill");
+
+	table = tables->table;
+
+	fields = table->field;
+
+	heap = mem_heap_create(1000);
+
+	/* Iterate through the cached array and fill the I_S table rows */
+	for (ulint i = 0; i < num_page; i++) {
+		const buf_page_info_t*	page_info;
+		const char*		table_name;
+		const char*		index_name;
+		const char*		state_str;
+		enum buf_page_state	state;
+
+		table_name = NULL;
+		index_name = NULL;
+		state_str = NULL;
+
+		page_info = info_array + i;
+
+		OK(fields[IDX_BUF_LRU_POS]->store(page_info->block_id));
+
+		OK(fields[IDX_BUF_LRU_PAGE_SPACE]->store(page_info->space_id));
+
+		OK(fields[IDX_BUF_LRU_PAGE_NUM]->store(page_info->page_num));
+
+		OK(field_store_string(
+			fields[IDX_BUF_LRU_PAGE_TYPE],
+			i_s_page_type[page_info->page_type].type_str));
+
+		OK(fields[IDX_BUF_LRU_PAGE_FLUSH_TYPE]->store(
+			page_info->flush_type));
+
+		OK(fields[IDX_BUF_LRU_PAGE_FIX_COUNT]->store(
+			page_info->fix_count));
+
+		if (page_info->hashed) {
+			OK(field_store_string(
+				fields[IDX_BUF_LRU_PAGE_HASHED], "YES"));
+		} else {
+			OK(field_store_string(
+				fields[IDX_BUF_LRU_PAGE_HASHED], "NO"));
+		}
+
+		OK(fields[IDX_BUF_LRU_PAGE_NEWEST_MOD]->store(
+			page_info->newest_mod, true));
+
+		OK(fields[IDX_BUF_LRU_PAGE_OLDEST_MOD]->store(
+			page_info->oldest_mod, true));
+
+		OK(fields[IDX_BUF_LRU_PAGE_ACCESS_TIME]->store(
+			page_info->access_time));
+
+		/* If this is an index page, fetch the index name
+		and table name */
+		if (page_info->page_type == I_S_PAGE_TYPE_INDEX) {
+			const dict_index_t*	index;
+
+			mutex_enter(&dict_sys->mutex);
+			index = dict_index_get_if_in_cache_low(
+				page_info->index_id);
+
+			/* Copy the index/table name under mutex. We
+			do not want to hold the InnoDB mutex while
+			filling the IS table */
+			if (index) {
+				const char*	name_ptr = index->name;
+
+				if (name_ptr[0] == TEMP_INDEX_PREFIX) {
+					name_ptr++;
+				}
+
+				index_name = mem_heap_strdup(heap, name_ptr);
+
+				table_name = mem_heap_strdup(heap,
+							     index->table_name);
+			}
+
+			mutex_exit(&dict_sys->mutex);
+		}
+
+		OK(field_store_string(
+			fields[IDX_BUF_LRU_PAGE_TABLE_NAME], table_name));
+
+		OK(field_store_string(
+			fields[IDX_BUF_LRU_PAGE_INDEX_NAME], index_name));
+		OK(fields[IDX_BUF_LRU_PAGE_NUM_RECS]->store(
+			page_info->num_recs));
+
+		OK(fields[IDX_BUF_LRU_PAGE_DATA_SIZE]->store(
+			page_info->data_size));
+
+		OK(fields[IDX_BUF_LRU_PAGE_ZIP_SIZE]->store(
+			page_info->zip_ssize ?
+				 512 << page_info->zip_ssize : 0));
+
+		state = static_cast<enum buf_page_state>(page_info->page_state);
+
+		switch (state) {
+		/* Compressed page */
+		case BUF_BLOCK_ZIP_PAGE:
+		case BUF_BLOCK_ZIP_DIRTY:
+			state_str = "YES";
+			break;
+		/* Uncompressed page */
+		case BUF_BLOCK_FILE_PAGE:
+			state_str = "NO";
+			break;
+		/* We should not see following states */
+		case BUF_BLOCK_ZIP_FREE:
+		case BUF_BLOCK_READY_FOR_USE:
+		case BUF_BLOCK_NOT_USED:
+		case BUF_BLOCK_MEMORY:
+		case BUF_BLOCK_REMOVE_HASH:
+			state_str = NULL;
+			break;
+		};
+
+		OK(field_store_string(fields[IDX_BUF_LRU_PAGE_STATE],
+				      state_str));
+
+		switch (page_info->io_fix) {
+		case BUF_IO_NONE:
+			OK(field_store_string(fields[IDX_BUF_LRU_PAGE_IO_FIX],
+					      "IO_NONE"));
+			break;
+		case BUF_IO_READ:
+			OK(field_store_string(fields[IDX_BUF_LRU_PAGE_IO_FIX],
+					      "IO_READ"));
+			break;
+		case BUF_IO_WRITE:
+			OK(field_store_string(fields[IDX_BUF_LRU_PAGE_IO_FIX],
+					      "IO_WRITE"));
+			break;
+		}
+
+		OK(field_store_string(fields[IDX_BUF_LRU_PAGE_IS_OLD],
+				      (page_info->is_old) ? "YES" : "NO"));
+
+		OK(fields[IDX_BUF_LRU_PAGE_FREE_CLOCK]->store(
+			page_info->freed_page_clock));
+
+		if (schema_table_store_record(thd, table)) {
+			mem_heap_free(heap);
+			DBUG_RETURN(1);
+		}
+
+		mem_heap_empty(heap);
+	}
+
+	mem_heap_free(heap);
+
+	DBUG_RETURN(0);
+}
+
+/*******************************************************************//**
+This is the function that goes through buffer pool's LRU list
+and fetch information to INFORMATION_SCHEMA.INNODB_BUFFER_PAGE_LRU.
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_fill_buffer_lru(
+/*=======================*/
+	THD*			thd,		/*!< in: thread */
+	TABLE_LIST*		tables)		/*!< in/out: tables to fill */
+{
+	int			status = 0;
+	buf_page_info_t*	info_buffer;
+	ulint			lru_pos = 0;
+	const buf_page_t*	bpage;
+	ulint			lru_len;
+
+	DBUG_ENTER("i_s_innodb_fill_buffer_lru");
+
+	/* Obtain buf_pool mutex before allocate info_buffer, since
+	UT_LIST_GET_LEN(buf_pool->LRU) could change */
+	buf_pool_mutex_enter();
+
+	lru_len = UT_LIST_GET_LEN(buf_pool->LRU);
+
+	/* Print error message if malloc fail */
+	info_buffer = (buf_page_info_t*) my_malloc(
+		lru_len * sizeof *info_buffer, MYF(MY_WME));
+
+	if (!info_buffer) {
+		status = 1;
+		goto exit;
+	}
+
+	memset(info_buffer, 0, lru_len * sizeof *info_buffer);
+
+	/* Walk through Pool's LRU list and print the buffer page
+	information */
+	bpage = UT_LIST_GET_LAST(buf_pool->LRU);
+
+	while (bpage != NULL) {
+		/* Use the same function that collect buffer info for
+		INNODB_BUFFER_PAGE to get buffer page info */
+		i_s_innodb_buffer_page_get_info(bpage, lru_pos,
+						(info_buffer + lru_pos));
+
+		bpage = UT_LIST_GET_PREV(LRU, bpage);
+
+		lru_pos++;
+	}
+
+	ut_ad(lru_pos == lru_len);
+	ut_ad(lru_pos == UT_LIST_GET_LEN(buf_pool->LRU));
+
+exit:
+	buf_pool_mutex_exit();
+
+	if (info_buffer) {
+		status = i_s_innodb_buf_page_lru_fill(
+			thd, tables, info_buffer, lru_len);
+
+		my_free(info_buffer, MYF(MY_ALLOW_ZERO_PTR));
+	}
+
+	DBUG_RETURN(status);
+}
+
+/*******************************************************************//**
+Fill page information for pages in InnoDB buffer pool to the
+dynamic table INFORMATION_SCHEMA.INNODB_BUFFER_PAGE_LRU
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buf_page_lru_fill_table(
+/*===============================*/
+	THD*		thd,		/*!< in: thread */
+	TABLE_LIST*	tables,		/*!< in/out: tables to fill */
+	Item*		)		/*!< in: condition (ignored) */
+{
+	int	status	= 0;
+
+	DBUG_ENTER("i_s_innodb_buf_page_lru_fill_table");
+
+	/* deny access to any users that do not hold PROCESS_ACL */
+	if (check_global_access(thd, PROCESS_ACL)) {
+		DBUG_RETURN(0);
+	}
+
+	/* Fetch information from pages in this buffer pool's LRU list,
+	and fill the corresponding I_S table */
+	status = i_s_innodb_fill_buffer_lru(thd, tables);
+
+	DBUG_RETURN(status);
+}
+
+/*******************************************************************//**
+Bind the dynamic table INFORMATION_SCHEMA.INNODB_BUFFER_PAGE_LRU.
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buffer_page_lru_init(
+/*============================*/
+	void*	p)	/*!< in/out: table schema object */
+{
+	ST_SCHEMA_TABLE*	schema;
+
+	DBUG_ENTER("i_s_innodb_buffer_page_lru_init");
+
+	schema = reinterpret_cast<ST_SCHEMA_TABLE*>(p);
+
+	schema->fields_info = i_s_innodb_buf_page_lru_fields_info;
+	schema->fill_table = i_s_innodb_buf_page_lru_fill_table;
+
+	DBUG_RETURN(0);
+}
+
+UNIV_INTERN struct st_mysql_plugin	i_s_innodb_buffer_page_lru =
+{
+	/* the plugin type (a MYSQL_XXX_PLUGIN value) */
+	/* int */
+	STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
+
+	/* pointer to type-specific plugin descriptor */
+	/* void* */
+	STRUCT_FLD(info, &i_s_info),
+
+	/* plugin name */
+	/* const char* */
+	STRUCT_FLD(name, "INNODB_BUFFER_PAGE_LRU"),
+
+	/* plugin author (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(author, plugin_author),
+
+	/* general descriptive text (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(descr, "InnoDB Buffer Page in LRU"),
+
+	/* the plugin license (PLUGIN_LICENSE_XXX) */
+	/* int */
+	STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
+
+	/* the function to invoke when plugin is loaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(init, i_s_innodb_buffer_page_lru_init),
+
+	/* the function to invoke when plugin is unloaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(deinit, i_s_common_deinit),
+
+	/* plugin version (for SHOW PLUGINS) */
+	/* unsigned int */
+	STRUCT_FLD(version, INNODB_VERSION_SHORT),
+
+	/* struct st_mysql_show_var* */
+	STRUCT_FLD(status_vars, NULL),
+
+	/* struct st_mysql_sys_var** */
+	STRUCT_FLD(system_vars, NULL),
+
+	/* reserved for dependency checking */
+	/* void* */
+	STRUCT_FLD(__reserved1, NULL),
+};
diff --git a/storage/innodb_plugin/handler/i_s.h b/storage/innodb_plugin/handler/i_s.h
index 402c88bbedb..3a8770d73fb 100644
--- a/storage/innodb_plugin/handler/i_s.h
+++ b/storage/innodb_plugin/handler/i_s.h
@@ -33,5 +33,8 @@ extern struct st_mysql_plugin	i_s_innodb_cmp;
 extern struct st_mysql_plugin	i_s_innodb_cmp_reset;
 extern struct st_mysql_plugin	i_s_innodb_cmpmem;
 extern struct st_mysql_plugin	i_s_innodb_cmpmem_reset;
+extern struct st_mysql_plugin	i_s_innodb_buffer_page;
+extern struct st_mysql_plugin	i_s_innodb_buffer_page_lru;
+extern struct st_mysql_plugin	i_s_innodb_buffer_stats;
 
 #endif /* i_s_h */
diff --git a/storage/innodb_plugin/ibuf/ibuf0ibuf.c b/storage/innodb_plugin/ibuf/ibuf0ibuf.c
index f1da399167c..965d8df7d0c 100644
--- a/storage/innodb_plugin/ibuf/ibuf0ibuf.c
+++ b/storage/innodb_plugin/ibuf/ibuf0ibuf.c
@@ -2752,11 +2752,19 @@ ibuf_insert_low(
 
 		root = ibuf_tree_root_get(&mtr);
 
-		err = btr_cur_pessimistic_insert(BTR_NO_LOCKING_FLAG
-						 | BTR_NO_UNDO_LOG_FLAG,
-						 cursor,
-						 ibuf_entry, &ins_rec,
-						 &dummy_big_rec, 0, thr, &mtr);
+		err = btr_cur_optimistic_insert(
+			BTR_NO_LOCKING_FLAG | BTR_NO_UNDO_LOG_FLAG,
+			cursor, ibuf_entry, &ins_rec,
+			&dummy_big_rec, 0, thr, &mtr);
+
+		if (err == DB_FAIL) {
+			err = btr_cur_pessimistic_insert(
+				BTR_NO_LOCKING_FLAG
+				| BTR_NO_UNDO_LOG_FLAG,
+				cursor, ibuf_entry, &ins_rec,
+				&dummy_big_rec, 0, thr, &mtr);
+		}
+
 		if (err == DB_SUCCESS) {
 			/* Update the page max trx id field */
 			page_update_max_trx_id(btr_cur_get_block(cursor), NULL,
diff --git a/storage/innodb_plugin/include/buf0buf.h b/storage/innodb_plugin/include/buf0buf.h
index de009a4c670..fd286f6c26c 100644
--- a/storage/innodb_plugin/include/buf0buf.h
+++ b/storage/innodb_plugin/include/buf0buf.h
@@ -103,6 +103,81 @@ enum buf_page_state {
 					before putting to the free list */
 };
 
+/** This structure defines information we will fetch from each buffer pool. It
+will be used to print table IO stats */
+struct buf_pool_info_struct{
+	/* General buffer pool info */
+	ulint	pool_size;		/*!< Buffer Pool size in pages */
+	ulint	lru_len;		/*!< Length of buf_pool->LRU */
+	ulint	old_lru_len;		/*!< buf_pool->LRU_old_len */
+	ulint	free_list_len;		/*!< Length of buf_pool->free list */
+	ulint	flush_list_len;		/*!< Length of buf_pool->flush_list */
+	ulint	n_pend_unzip;		/*!< buf_pool->n_pend_unzip, pages
+					pending decompress */
+	ulint	n_pend_reads;		/*!< buf_pool->n_pend_reads, pages
+					pending read */
+	ulint	n_pending_flush_lru;	/*!< Pages pending flush in LRU */
+	ulint	n_pending_flush_single_page;/*!< Pages pending to be
+					flushed as part of single page
+					flushes issued by various user
+					threads */
+	ulint	n_pending_flush_list;	/*!< Pages pending flush in FLUSH
+					LIST */
+	ulint	n_pages_made_young;	/*!< number of pages made young */
+	ulint	n_pages_not_made_young;	/*!< number of pages not made young */
+	ulint	n_pages_read;		/*!< buf_pool->n_pages_read */
+	ulint	n_pages_created;	/*!< buf_pool->n_pages_created */
+	ulint	n_pages_written;	/*!< buf_pool->n_pages_written */
+	ulint	n_page_gets;		/*!< buf_pool->n_page_gets */
+	ulint	n_ra_pages_read_rnd;	/*!< buf_pool->n_ra_pages_read_rnd,
+					number of pages readahead */
+	ulint	n_ra_pages_read;	/*!< buf_pool->n_ra_pages_read, number
+					of pages readahead */
+	ulint	n_ra_pages_evicted;	/*!< buf_pool->n_ra_pages_evicted,
+					number of readahead pages evicted
+					without access */
+	ulint	n_page_get_delta;	/*!< num of buffer pool page gets since
+					last printout */
+
+	/* Buffer pool access stats */
+	double	page_made_young_rate;	/*!< page made young rate in pages
+					per second */
+	double	page_not_made_young_rate;/*!< page not made young rate
+					in pages per second */
+	double	pages_read_rate;	/*!< num of pages read per second */
+	double	pages_created_rate;	/*!< num of pages create per second */
+	double	pages_written_rate;	/*!< num of  pages written per second */
+	ulint	page_read_delta;	/*!< num of pages read since last
+					printout */
+	ulint	young_making_delta;	/*!< num of pages made young since
+					last printout */
+	ulint	not_young_making_delta;	/*!< num of pages not make young since
+					last printout */
+
+	/* Statistics about read ahead algorithm.  */
+	double	pages_readahead_rnd_rate;/*!< random readahead rate in pages per
+					second */
+	double	pages_readahead_rate;	/*!< readahead rate in pages per
+					second */
+	double	pages_evicted_rate;	/*!< rate of readahead page evicted
+					without access, in pages per second */
+
+	/* Stats about LRU eviction */
+	ulint	unzip_lru_len;		/*!< length of buf_pool->unzip_LRU
+					list */
+	/* Counters for LRU policy */
+	ulint	io_sum;			/*!< buf_LRU_stat_sum.io */
+	ulint	io_cur;			/*!< buf_LRU_stat_cur.io, num of IO
+					for current interval */
+	ulint	unzip_sum;		/*!< buf_LRU_stat_sum.unzip */
+	ulint	unzip_cur;		/*!< buf_LRU_stat_cur.unzip, num
+					pages decompressed in current
+					interval */
+};
+
+typedef struct buf_pool_info_struct	buf_pool_info_t;
+
+
 #ifndef UNIV_HOTBACKUP
 /********************************************************************//**
 Creates the buffer pool.
@@ -618,6 +693,16 @@ void
 buf_print_io(
 /*=========*/
 	FILE*	file);	/*!< in: file where to print */
+/*******************************************************************//**
+Collect buffer pool stats information for a buffer pool. Also
+record aggregated stats if there are more than one buffer pool
+in the server */
+UNIV_INTERN
+void
+buf_stats_get_pool_info(
+/*====================*/
+	buf_pool_info_t*        pool_info); /*!< in/out: buffer pool info
+                                                to fill */
 /*********************************************************************//**
 Returns the ratio in percents of modified pages in the buffer pool /
 database pages in the buffer pool.
@@ -1037,12 +1122,27 @@ UNIV_INTERN
 ulint
 buf_get_free_list_len(void);
 /*=======================*/
+
+/*********************************************************************//**
+Get the nth chunk's buffer block in the specified buffer pool.
+@return the nth chunk's buffer block. */
+UNIV_INLINE
+buf_block_t*
+buf_get_nth_chunk_block(
+/*====================*/
+	const buf_pool_t* buf_pool,     /*!< in: buffer pool instance */
+	ulint           n,              /*!< in: nth chunk in the buffer pool */
+	ulint*          chunk_size);    /*!< in: chunk size */
+
 #endif /* !UNIV_HOTBACKUP */
 
 
 /** The common buffer control block structure
 for compressed and uncompressed frames */
 
+/** Number of bits used for buffer page states. */
+#define BUF_PAGE_STATE_BITS     3
+
 struct buf_page_struct{
 	/** @name General fields
 	None of these bit-fields must be modified without holding
@@ -1057,7 +1157,8 @@ struct buf_page_struct{
 	unsigned	offset:32;	/*!< page number; also protected
 					by buf_pool_mutex. */
 
-	unsigned	state:3;	/*!< state of the control block; also
+	unsigned	state:BUF_PAGE_STATE_BITS;
+					/*!< state of the control block; also
 					protected by buf_pool_mutex.
 					State transitions from
 					BUF_BLOCK_READY_FOR_USE to
diff --git a/storage/innodb_plugin/include/buf0buf.ic b/storage/innodb_plugin/include/buf0buf.ic
index e7308d77983..39135a2ece1 100644
--- a/storage/innodb_plugin/include/buf0buf.ic
+++ b/storage/innodb_plugin/include/buf0buf.ic
@@ -36,6 +36,16 @@ Created 11/5/1995 Heikki Tuuri
 #include "buf0lru.h"
 #include "buf0rea.h"
 
+/** A chunk of buffers. The buffer pool is allocated in chunks. */
+struct buf_chunk_struct{
+        ulint           mem_size;       /*!< allocated size of the chunk */
+        ulint           size;           /*!< size of frames[] and blocks[] */
+        void*           mem;            /*!< pointer to the memory area which
+                                        was allocated for the frames */
+        buf_block_t*    blocks;         /*!< array of buffer control blocks */
+};
+
+
 /********************************************************************//**
 Reads the freed_page_clock of a buffer block.
 @return	freed_page_clock */
@@ -1106,4 +1116,23 @@ buf_block_dbg_add_level(
 	sync_thread_add_level(&block->lock, level, FALSE);
 }
 #endif /* UNIV_SYNC_DEBUG */
+
+/*********************************************************************//**
+Get the nth chunk's buffer block in the specified buffer pool.
+@return the nth chunk's buffer block. */
+UNIV_INLINE
+buf_block_t*
+buf_get_nth_chunk_block(
+/*====================*/
+        const buf_pool_t* buf_pool,     /*!< in: buffer pool instance */
+        ulint           n,              /*!< in: nth chunk in the buffer pool */
+        ulint*          chunk_size)     /*!< in: chunk size */
+{
+        const buf_chunk_t*      chunk;
+
+        chunk = buf_pool->chunks + n;
+        *chunk_size = chunk->size;
+        return(chunk->blocks);
+}
 #endif /* !UNIV_HOTBACKUP */
+
diff --git a/storage/innodb_plugin/include/fil0fil.h b/storage/innodb_plugin/include/fil0fil.h
index c95038b9231..05217168764 100644
--- a/storage/innodb_plugin/include/fil0fil.h
+++ b/storage/innodb_plugin/include/fil0fil.h
@@ -141,6 +141,8 @@ extern fil_addr_t	fil_addr_null;
 #define FIL_PAGE_TYPE_BLOB	10	/*!< Uncompressed BLOB page */
 #define FIL_PAGE_TYPE_ZBLOB	11	/*!< First compressed BLOB page */
 #define FIL_PAGE_TYPE_ZBLOB2	12	/*!< Subsequent compressed BLOB page */
+#define FIL_PAGE_TYPE_LAST	FIL_PAGE_TYPE_ZBLOB2
+					/*!< Last page type */
 /* @} */
 
 /** Space types @{ */
diff --git a/storage/innodb_plugin/include/log0log.h b/storage/innodb_plugin/include/log0log.h
index 8c61244a38d..0295ac4ee35 100644
--- a/storage/innodb_plugin/include/log0log.h
+++ b/storage/innodb_plugin/include/log0log.h
@@ -41,6 +41,9 @@ Created 12/9/1995 Heikki Tuuri
 #include "sync0rw.h"
 #endif /* !UNIV_HOTBACKUP */
 
+/* Type used for all log sequence number storage and arithmetics */
+typedef ib_uint64_t		lsn_t;
+
 /** Redo log buffer */
 typedef struct log_struct	log_t;
 /** Redo log group */
diff --git a/storage/innodb_plugin/include/univ.i b/storage/innodb_plugin/include/univ.i
index 4e9fbef4db3..6cede60a6e0 100644
--- a/storage/innodb_plugin/include/univ.i
+++ b/storage/innodb_plugin/include/univ.i
@@ -267,6 +267,24 @@ management to ensure correct alignment for doubles etc. */
 			========================
 */
 
+/** There are currently two InnoDB file formats which are used to group
+features with similar restrictions and dependencies. Using an enum allows
+switch statements to give a compiler warning when a new one is introduced. */
+enum innodb_file_formats_enum {
+	/** Antelope File Format: InnoDB/MySQL up to 5.1.
+	This format includes REDUNDANT and COMPACT row formats */
+	UNIV_FORMAT_A		= 0,
+
+	/** Barracuda File Format: Introduced in InnoDB plugin for 5.1:
+	This format includes COMPRESSED and DYNAMIC row formats.  It
+	includes the ability to create secondary indexes from data that
+	is not on the clustered index page and the ability to store more
+	data off the clustered index page. */
+	UNIV_FORMAT_B		= 1
+};
+
+typedef enum innodb_file_formats_enum innodb_file_formats_t;
+
 /* The 2-logarithm of UNIV_PAGE_SIZE: */
 #define UNIV_PAGE_SIZE_SHIFT	14
 /* The universal page size of the database */
diff --git a/storage/innodb_plugin/page/page0cur.c b/storage/innodb_plugin/page/page0cur.c
index 88ee6bc09a9..00fb55d169c 100644
--- a/storage/innodb_plugin/page/page0cur.c
+++ b/storage/innodb_plugin/page/page0cur.c
@@ -1902,6 +1902,7 @@ page_cur_delete_rec(
 
 	/* Save to local variables some data associated with current_rec */
 	cur_slot_no = page_dir_find_owner_slot(current_rec);
+	ut_ad(cur_slot_no > 0);
 	cur_dir_slot = page_dir_get_nth_slot(page, cur_slot_no);
 	cur_n_owned = page_dir_slot_get_n_owned(cur_dir_slot);
 
diff --git a/storage/innodb_plugin/page/page0page.c b/storage/innodb_plugin/page/page0page.c
index 7b72a22fd1c..a85789f5c32 100644
--- a/storage/innodb_plugin/page/page0page.c
+++ b/storage/innodb_plugin/page/page0page.c
@@ -780,17 +780,23 @@ page_copy_rec_list_start(
 	if (UNIV_LIKELY_NULL(new_page_zip)) {
 		mtr_set_log_mode(mtr, log_mode);
 
+		DBUG_EXECUTE_IF("page_copy_rec_list_start_compress_fail",
+				goto zip_reorganize;);
+
 		if (UNIV_UNLIKELY
 		    (!page_zip_compress(new_page_zip, new_page, index, mtr))) {
+			ulint	ret_pos;
+#ifndef DBUG_OFF
+zip_reorganize:
+#endif /* DBUG_OFF */
 			/* Before trying to reorganize the page,
 			store the number of preceding records on the page. */
-			ulint	ret_pos
-				= page_rec_get_n_recs_before(ret);
+			ret_pos = page_rec_get_n_recs_before(ret);
 			/* Before copying, "ret" was the predecessor
 			of the predefined supremum record.  If it was
 			the predefined infimum record, then it would
-			still be the infimum.  Thus, the assertion
-			ut_a(ret_pos > 0) would fail here. */
+			still be the infimum, and we would have
+			ret_pos == 0. */
 
 			if (UNIV_UNLIKELY
 			    (!page_zip_reorganize(new_block, index, mtr))) {
@@ -806,15 +812,10 @@ page_copy_rec_list_start(
 				btr_blob_dbg_add(new_page, index,
 						 "copy_start_reorg_fail");
 				return(NULL);
-			} else {
-				/* The page was reorganized:
-				Seek to ret_pos. */
-				ret = new_page + PAGE_NEW_INFIMUM;
-
-				do {
-					ret = rec_get_next_ptr(ret, TRUE);
-				} while (--ret_pos);
 			}
+
+			/* The page was reorganized: Seek to ret_pos. */
+			ret = page_rec_get_nth(new_page, ret_pos);
 		}
 	}
 
@@ -1050,6 +1051,7 @@ page_delete_rec_list_end(
 
 		n_owned = rec_get_n_owned_new(rec2) - count;
 		slot_index = page_dir_find_owner_slot(rec2);
+		ut_ad(slot_index > 0);
 		slot = page_dir_get_nth_slot(page, slot_index);
 	} else {
 		rec_t*	rec2	= rec;
@@ -1065,6 +1067,7 @@ page_delete_rec_list_end(
 
 		n_owned = rec_get_n_owned_old(rec2) - count;
 		slot_index = page_dir_find_owner_slot(rec2);
+		ut_ad(slot_index > 0);
 		slot = page_dir_get_nth_slot(page, slot_index);
 	}
 
@@ -1491,6 +1494,10 @@ page_rec_get_nth_const(
 	ulint			n_owned;
 	const rec_t*		rec;
 
+	if (nth == 0) {
+		return(page_get_infimum_rec(page));
+	}
+
 	ut_ad(nth < UNIV_PAGE_SIZE / (REC_N_NEW_EXTRA_BYTES + 1));
 
 	for (i = 0;; i++) {
diff --git a/storage/innodb_plugin/row/row0ins.c b/storage/innodb_plugin/row/row0ins.c
index 4994a91dd23..92ce04774ea 100644
--- a/storage/innodb_plugin/row/row0ins.c
+++ b/storage/innodb_plugin/row/row0ins.c
@@ -2179,9 +2179,16 @@ row_ins_index_entry_low(
 
 				goto function_exit;
 			}
-			err = btr_cur_pessimistic_insert(
+
+			err = btr_cur_optimistic_insert(
 				0, &cursor, entry, &insert_rec, &big_rec,
 				n_ext, thr, &mtr);
+
+			if (err == DB_FAIL) {
+				err = btr_cur_pessimistic_insert(
+					0, &cursor, entry, &insert_rec,
+					&big_rec, n_ext, thr, &mtr);
+			}
 		}
 	}
 
diff --git a/storage/innodb_plugin/row/row0merge.c b/storage/innodb_plugin/row/row0merge.c
index 7f59d7cf9e9..5da2a4b8534 100644
--- a/storage/innodb_plugin/row/row0merge.c
+++ b/storage/innodb_plugin/row/row0merge.c
@@ -1214,11 +1214,25 @@ row_merge_read_clustered_index(
 				goto err_exit;
 			}
 
+			/* Store the cursor position on the last user
+			record on the page. */
+			btr_pcur_move_to_prev_on_page(&pcur);
+			/* Leaf pages must never be empty, unless
+			this is the only page in the index tree. */
+			ut_ad(btr_pcur_is_on_user_rec(&pcur)
+			      || buf_block_get_page_no(
+				      btr_pcur_get_block(&pcur))
+			      == clust_index->page);
+
 			btr_pcur_store_position(&pcur, &mtr);
 			mtr_commit(&mtr);
 			mtr_start(&mtr);
+			/* Restore position on the record, or its
+			predecessor if the record was purged
+			meanwhile. */
 			btr_pcur_restore_position(BTR_SEARCH_LEAF,
 						  &pcur, &mtr);
+			/* Move to the successor of the original record. */
 			has_next = btr_pcur_move_to_next_user_rec(&pcur, &mtr);
 		}
 
diff --git a/storage/innodb_plugin/scripts/install_innodb_plugins.sql b/storage/innodb_plugin/scripts/install_innodb_plugins.sql
index 3fdb8f11e22..8833d9c023c 100644
--- a/storage/innodb_plugin/scripts/install_innodb_plugins.sql
+++ b/storage/innodb_plugin/scripts/install_innodb_plugins.sql
@@ -7,3 +7,6 @@ INSTALL PLUGIN innodb_cmp SONAME 'ha_innodb.so';
 INSTALL PLUGIN innodb_cmp_reset SONAME 'ha_innodb.so';
 INSTALL PLUGIN innodb_cmpmem SONAME 'ha_innodb.so';
 INSTALL PLUGIN innodb_cmpmem_reset SONAME 'ha_innodb.so';
+INSTALL PLUGIN innodb_buffer_pool_stats SONAME 'ha_innodb.so';
+INSTALL PLUGIN innodb_buffer_page SONAME 'ha_innodb.so';
+INSTALL PLUGIN innodb_buffer_page_lru SONAME 'ha_innodb.so';
diff --git a/storage/innodb_plugin/scripts/install_innodb_plugins_win.sql b/storage/innodb_plugin/scripts/install_innodb_plugins_win.sql
index 8c94b4e240d..023b13132c3 100644
--- a/storage/innodb_plugin/scripts/install_innodb_plugins_win.sql
+++ b/storage/innodb_plugin/scripts/install_innodb_plugins_win.sql
@@ -7,3 +7,6 @@ INSTALL PLUGIN innodb_cmp SONAME 'ha_innodb.dll';
 INSTALL PLUGIN innodb_cmp_reset SONAME 'ha_innodb.dll';

 INSTALL PLUGIN innodb_cmpmem SONAME 'ha_innodb.dll';

 INSTALL PLUGIN innodb_cmpmem_reset SONAME 'ha_innodb.dll';

+INSTALL PLUGIN innodb_buffer_pool_stats SONAME 'ha_innodb.dll';

+INSTALL PLUGIN innodb_buffer_page SONAME 'ha_innodb.dll';

+INSTALL PLUGIN innodb_buffer_page_lru SONAME 'ha_innodb.dll';

diff --git a/storage/maria/unittest/ma_test_all-t b/storage/maria/unittest/ma_test_all-t
index 4d72c6dfadf..75e1442998f 100755
--- a/storage/maria/unittest/ma_test_all-t
+++ b/storage/maria/unittest/ma_test_all-t
@@ -623,7 +623,7 @@ sub ok
   print " ]" if ($verbose);
   print " $test_counter - $com" unless $verbose;
   print "\n";
-  if ($verbose && defined($output) && length($output))
+  if (defined($output) && length($output))
   {
     print "$output\n";
   }
diff --git a/storage/xtradb/CMakeLists.txt b/storage/xtradb/CMakeLists.txt
index 50f2dba5cf9..13c4f24d3a9 100644
--- a/storage/xtradb/CMakeLists.txt
+++ b/storage/xtradb/CMakeLists.txt
@@ -63,7 +63,7 @@ SET(XTRADB_SOURCES	btr/btr0btr.c btr/btr0cur.c btr/btr0pcur.c btr/btr0sea.c
 			ibuf/ibuf0ibuf.c
 			pars/lexyy.c pars/pars0grm.c pars/pars0opt.c pars/pars0pars.c pars/pars0sym.c
 			lock/lock0lock.c lock/lock0iter.c
-			log/log0log.c log/log0recv.c
+			log/log0log.c log/log0recv.c log/log0online.c
 			mach/mach0data.c
 			mem/mem0mem.c mem/mem0pool.c
 			mtr/mtr0log.c mtr/mtr0mtr.c
diff --git a/storage/xtradb/ChangeLog b/storage/xtradb/ChangeLog
index 1588132fc8b..4ef88e3bca1 100644
--- a/storage/xtradb/ChangeLog
+++ b/storage/xtradb/ChangeLog
@@ -1,3 +1,32 @@
+2012-08-29	The InnoDB Team
+
+	* btr/btr0btr.c, page/page0cur.c, page/page0page.c:
+	Fix Bug#14554000 CRASH IN PAGE_REC_GET_NTH_CONST(NTH=0)
+	DURING COMPRESSED PAGE SPLIT
+
+2012-08-16	The InnoDB Team
+
+	* btr/btr0cur.c:
+	Fix Bug#12595091 POSSIBLY INVALID ASSERTION IN
+	BTR_CUR_PESSIMISTIC_UPDATE()
+
+2012-08-16	The InnoDB Team
+
+	* btr/btr0btr.c, btr/btr0cur.c:
+	Fix Bug#12845774 OPTIMISTIC INSERT/UPDATE USES WRONG HEURISTICS FOR
+	COMPRESSED PAGE SIZE
+
+2012-08-16	The InnoDB Team
+
+	* btr/btr0cur.c, page/page0page.c:
+	Fix Bug#13523839 ASSERTION FAILURES ON COMPRESSED INNODB TABLES
+
+2012-08-07	The InnoDB Team
+
+	* btr/btr0pcur.c, row/row0merge.c:
+	Fix Bug#14399148 INNODB TABLES UNDER LOAD PRODUCE DUPLICATE COPIES
+	OF ROWS IN QUERIES
+
 2012-03-15	The InnoDB Team
 
 	* fil/fil0fil.c, ibuf/ibuf0ibuf.c, include/fil0fil.h,
diff --git a/storage/xtradb/Makefile.am b/storage/xtradb/Makefile.am
index 02eeaa1e456..c90a76ba142 100644
--- a/storage/xtradb/Makefile.am
+++ b/storage/xtradb/Makefile.am
@@ -101,6 +101,7 @@ noinst_HEADERS=		\
 			include/lock0types.h	\
 			include/log0log.h	\
 			include/log0log.ic	\
+			include/log0online.h	\
 			include/log0recv.h	\
 			include/log0recv.ic	\
 			include/mach0data.h	\
@@ -226,7 +227,6 @@ noinst_HEADERS=		\
 			include/ut0vec.h	\
 			include/ut0vec.ic	\
 			include/ut0wqueue.h	\
-			handler/innodb_patch_info.h	\
 			mem/mem0dbg.c
 
 noinst_LTLIBRARIES=	@plugin_xtradb_static_target@
@@ -265,6 +265,7 @@ libxtradb_la_SOURCES=	\
 			lock/lock0iter.c		\
 			lock/lock0lock.c		\
 			log/log0log.c			\
+			log/log0online.c		\
 			log/log0recv.c			\
 			mach/mach0data.c		\
 			mem/mem0mem.c			\
diff --git a/storage/xtradb/btr/btr0btr.c b/storage/xtradb/btr/btr0btr.c
index 75cc80d0967..75be76b9dd1 100644
--- a/storage/xtradb/btr/btr0btr.c
+++ b/storage/xtradb/btr/btr0btr.c
@@ -664,6 +664,12 @@ btr_root_fseg_validate(
 {
 	ulint	offset = mach_read_from_2(seg_header + FSEG_HDR_OFFSET);
 
+	if (UNIV_UNLIKELY(srv_pass_corrupt_table)) {
+		return (mach_read_from_4(seg_header + FSEG_HDR_SPACE) == space)
+			&& (offset >= FIL_PAGE_DATA)
+			&& (offset <= UNIV_PAGE_SIZE - FIL_PAGE_DATA_END);
+	}
+
 	ut_a(mach_read_from_4(seg_header + FSEG_HDR_SPACE) == space);
 	ut_a(offset >= FIL_PAGE_DATA);
 	ut_a(offset <= UNIV_PAGE_SIZE - FIL_PAGE_DATA_END);
@@ -704,6 +710,17 @@ btr_root_block_get(
 	if (!dict_index_is_ibuf(index)) {
 		const page_t*	root = buf_block_get_frame(block);
 
+		if (UNIV_UNLIKELY(srv_pass_corrupt_table)) {
+			if (!btr_root_fseg_validate(FIL_PAGE_DATA
+						    + PAGE_BTR_SEG_LEAF
+						    + root, space))
+				return(NULL);
+			if (!btr_root_fseg_validate(FIL_PAGE_DATA
+						    + PAGE_BTR_SEG_TOP
+						    + root, space))
+				return(NULL);
+			return(block);
+		}
 		ut_a(btr_root_fseg_validate(FIL_PAGE_DATA + PAGE_BTR_SEG_LEAF
 					    + root, space));
 		ut_a(btr_root_fseg_validate(FIL_PAGE_DATA + PAGE_BTR_SEG_TOP
@@ -1852,6 +1869,7 @@ btr_root_raise_and_insert(
 	root = btr_cur_get_page(cursor);
 	root_block = btr_cur_get_block(cursor);
 	root_page_zip = buf_block_get_page_zip(root_block);
+	ut_ad(page_get_n_recs(root) > 0);
 #ifdef UNIV_ZIP_DEBUG
 	ut_a(!root_page_zip || page_zip_validate(root_page_zip, root));
 #endif /* UNIV_ZIP_DEBUG */
@@ -2332,12 +2350,20 @@ btr_insert_on_non_leaf_level_func(
 				    BTR_CONT_MODIFY_TREE,
 				    &cursor, 0, file, line, mtr);
 
-	err = btr_cur_pessimistic_insert(BTR_NO_LOCKING_FLAG
-					 | BTR_KEEP_SYS_FLAG
-					 | BTR_NO_UNDO_LOG_FLAG,
-					 &cursor, tuple, &rec,
-					 &dummy_big_rec, 0, NULL, mtr);
-	ut_a(err == DB_SUCCESS);
+	ut_ad(cursor.flag == BTR_CUR_BINARY);
+
+	err = btr_cur_optimistic_insert(
+		BTR_NO_LOCKING_FLAG | BTR_KEEP_SYS_FLAG
+		| BTR_NO_UNDO_LOG_FLAG, &cursor, tuple, &rec,
+		&dummy_big_rec, 0, NULL, mtr);
+
+	if (err == DB_FAIL) {
+		err = btr_cur_pessimistic_insert(
+			BTR_NO_LOCKING_FLAG | BTR_KEEP_SYS_FLAG
+			| BTR_NO_UNDO_LOG_FLAG,
+			&cursor, tuple, &rec, &dummy_big_rec, 0, NULL, mtr);
+		ut_a(err == DB_SUCCESS);
+	}
 }
 
 /**************************************************************//**
@@ -3262,6 +3288,7 @@ btr_compress(
 
 	if (adjust) {
 		nth_rec = page_rec_get_n_recs_before(btr_cur_get_rec(cursor));
+		ut_ad(nth_rec > 0);
 	}
 
 	/* Decide the page to which we try to merge and which will inherit
@@ -3497,6 +3524,7 @@ func_exit:
 	mem_heap_free(heap);
 
 	if (adjust) {
+		ut_ad(nth_rec > 0);
 		btr_cur_position(
 			index,
 			page_rec_get_nth(merge_block->frame, nth_rec),
@@ -4009,8 +4037,22 @@ btr_index_page_validate(
 {
 	page_cur_t	cur;
 	ibool		ret	= TRUE;
+#ifndef DBUG_OFF
+	ulint		nth	= 1;
+#endif /* !DBUG_OFF */
 
 	page_cur_set_before_first(block, &cur);
+
+	/* Directory slot 0 should only contain the infimum record. */
+	DBUG_EXECUTE_IF("check_table_rec_next",
+			ut_a(page_rec_get_nth_const(
+				     page_cur_get_page(&cur), 0)
+			     == cur.rec);
+			ut_a(page_dir_slot_get_n_owned(
+				     page_dir_get_nth_slot(
+					     page_cur_get_page(&cur), 0))
+			     == 1););
+
 	page_cur_move_to_next(&cur);
 
 	for (;;) {
@@ -4024,6 +4066,16 @@ btr_index_page_validate(
 			return(FALSE);
 		}
 
+		/* Verify that page_rec_get_nth_const() is correctly
+		retrieving each record. */
+		DBUG_EXECUTE_IF("check_table_rec_next",
+				ut_a(cur.rec == page_rec_get_nth_const(
+					     page_cur_get_page(&cur),
+					     page_rec_get_n_recs_before(
+						     cur.rec)));
+				ut_a(nth++ == page_rec_get_n_recs_before(
+					     cur.rec)););
+
 		page_cur_move_to_next(&cur);
 	}
 
@@ -4435,6 +4487,12 @@ btr_validate_index(
 	mtr_x_lock(dict_index_get_lock(index), &mtr);
 
 	root = btr_root_get(index, &mtr);
+
+	if (UNIV_UNLIKELY(srv_pass_corrupt_table && !root)) {
+		mtr_commit(&mtr);
+		return(FALSE);
+	}
+
 	n = btr_page_get_level(root, &mtr);
 
 	for (i = 0; i <= n && !trx_is_interrupted(trx); i++) {
diff --git a/storage/xtradb/btr/btr0cur.c b/storage/xtradb/btr/btr0cur.c
index 4161be93a90..91f14beab96 100644
--- a/storage/xtradb/btr/btr0cur.c
+++ b/storage/xtradb/btr/btr0cur.c
@@ -1307,7 +1307,12 @@ fail_err:
 
 		if (UNIV_UNLIKELY(reorg)) {
 			ut_a(zip_size);
-			ut_a(*rec);
+			/* It's possible for rec to be NULL if the
+			page is compressed.  This is because a
+			reorganized page may become incompressible. */
+			if (!*rec) {
+				goto fail;
+			}
 		}
 	}
 
@@ -1443,20 +1448,9 @@ btr_cur_pessimistic_insert(
 	ut_ad((thr && thr_get_trx(thr)->fake_changes) || mtr_memo_contains(mtr, btr_cur_get_block(cursor),
 				MTR_MEMO_PAGE_X_FIX));
 
-	/* Try first an optimistic insert; reset the cursor flag: we do not
-	assume anything of how it was positioned */
-
 	cursor->flag = BTR_CUR_BINARY;
 
-	err = btr_cur_optimistic_insert(flags, cursor, entry, rec,
-					big_rec, n_ext, thr, mtr);
-	if (err != DB_FAIL) {
-
-		return(err);
-	}
-
-	/* Retry with a pessimistic insert. Check locks and write to undo log,
-	if specified */
+	/* Check locks and write to undo log, if specified */
 
 	err = btr_cur_ins_lock_and_undo(flags, cursor, entry,
 					thr, mtr, &dummy_inh);
@@ -2083,8 +2077,12 @@ any_extern:
 		goto err_exit;
 	}
 
-	max_size = old_rec_size
-		+ page_get_max_insert_size_after_reorganize(page, 1);
+	/* We do not attempt to reorganize if the page is compressed.
+	This is because the page may fail to compress after reorganization. */
+	max_size = page_zip
+		? page_get_max_insert_size(page, 1)
+		: (old_rec_size
+		   + page_get_max_insert_size_after_reorganize(page, 1));
 
 	if (!(((max_size >= BTR_CUR_PAGE_REORGANIZE_LIMIT)
 	       && (max_size >= new_rec_size))
@@ -2452,7 +2450,12 @@ make_external:
 		err = DB_SUCCESS;
 		goto return_after_reservations;
 	} else {
-		ut_a(optim_err != DB_UNDERFLOW);
+		/* If the page is compressed and it initially
+		compresses very well, and there is a subsequent insert
+		of a badly-compressing record, it is possible for
+		btr_cur_optimistic_update() to return DB_UNDERFLOW and
+		btr_cur_insert_if_possible() to return FALSE. */
+		ut_a(page_zip || optim_err != DB_UNDERFLOW);
 
 		/* Out of space: reset the free bits. */
 		if (!dict_index_is_clust(index)
@@ -2480,8 +2483,10 @@ make_external:
 	record on its page? */
 	was_first = page_cur_is_before_first(page_cursor);
 
-	/* The first parameter means that no lock checking and undo logging
-	is made in the insert */
+	/* Lock checks and undo logging were already performed by
+	btr_cur_upd_lock_and_undo(). We do not try
+	btr_cur_optimistic_insert() because
+	btr_cur_insert_if_possible() already failed above. */
 
 	err = btr_cur_pessimistic_insert(BTR_NO_UNDO_LOG_FLAG
 					 | BTR_NO_LOCKING_FLAG
@@ -3483,6 +3488,8 @@ btr_estimate_n_rows_in_range(
 				n_rows = n_rows * 2;
 			}
 
+			DBUG_EXECUTE_IF("bug14007649", return(n_rows););
+
 			/* Do not estimate the number of rows in the range
 			to over 1 / 2 of the estimated rows in the whole
 			table */
@@ -3582,9 +3589,9 @@ btr_record_not_null_field_in_rec(
 
 	for (i = 0; i < n_unique; i++) {
 		if (rec_offs_nth_sql_null(offsets, i)) {
-			/* Break if we hit the first NULL value */
 			break;
 		}
+
 		n_not_null[i]++;
 	}
 }
diff --git a/storage/xtradb/btr/btr0pcur.c b/storage/xtradb/btr/btr0pcur.c
index be1a6cbd8ee..f5323adec91 100644
--- a/storage/xtradb/btr/btr0pcur.c
+++ b/storage/xtradb/btr/btr0pcur.c
@@ -342,44 +342,39 @@ btr_pcur_restore_position_func(
 	/* Restore the old search mode */
 	cursor->search_mode = old_mode;
 
-	if (btr_pcur_is_on_user_rec(cursor)) {
-		switch (cursor->rel_pos) {
-		case BTR_PCUR_ON:
-			if (!cmp_dtuple_rec(
-				    tuple, btr_pcur_get_rec(cursor),
-				    rec_get_offsets(btr_pcur_get_rec(cursor),
-						    index, NULL,
-						    ULINT_UNDEFINED, &heap))) {
-
-				/* We have to store the NEW value for
-				the modify clock, since the cursor can
-				now be on a different page! But we can
-				retain the value of old_rec */
-
-				cursor->block_when_stored =
-					btr_pcur_get_block(cursor);
-				cursor->modify_clock =
-					buf_block_get_modify_clock(
-						cursor->block_when_stored);
-				cursor->old_stored = BTR_PCUR_OLD_STORED;
-
-				mem_heap_free(heap);
-
-				return(TRUE);
-			}
-
-			break;
-		case BTR_PCUR_BEFORE:
-			page_cur_move_to_next(btr_pcur_get_page_cur(cursor));
-			break;
-		case BTR_PCUR_AFTER:
-			page_cur_move_to_prev(btr_pcur_get_page_cur(cursor));
-			break;
+	switch (cursor->rel_pos) {
+	case BTR_PCUR_ON:
+		if (btr_pcur_is_on_user_rec(cursor)
+		    && !cmp_dtuple_rec(
+			    tuple, btr_pcur_get_rec(cursor),
+			    rec_get_offsets(btr_pcur_get_rec(cursor),
+					    index, NULL,
+					    ULINT_UNDEFINED, &heap))) {
+
+			/* We have to store the NEW value for
+			the modify clock, since the cursor can
+			now be on a different page! But we can
+			retain the value of old_rec */
+
+			cursor->block_when_stored =
+				btr_pcur_get_block(cursor);
+			cursor->modify_clock =
+				buf_block_get_modify_clock(
+					cursor->block_when_stored);
+			cursor->old_stored = BTR_PCUR_OLD_STORED;
+
+			mem_heap_free(heap);
+
+			return(TRUE);
+		}
 #ifdef UNIV_DEBUG
-		default:
-			ut_error;
+		/* fall through */
+	case BTR_PCUR_BEFORE:
+	case BTR_PCUR_AFTER:
+		break;
+	default:
+		ut_error;
 #endif /* UNIV_DEBUG */
-		}
 	}
 
 	mem_heap_free(heap);
diff --git a/storage/xtradb/buf/buf0buf.c b/storage/xtradb/buf/buf0buf.c
index 6998f1b53ac..22c1effc0d3 100644
--- a/storage/xtradb/buf/buf0buf.c
+++ b/storage/xtradb/buf/buf0buf.c
@@ -2123,6 +2123,7 @@ wait_until_unfixed:
 	if (mode == BUF_GET_IF_IN_POOL && ibuf_debug) {
 		/* Try to evict the block from the buffer pool, to use the
 		insert buffer as much as possible. */
+		ulint	page_no	= buf_block_get_page_no(block);
 
 		if (buf_LRU_free_block(&block->page, TRUE, FALSE)) {
 			//buf_pool_mutex_exit();
@@ -2131,6 +2132,18 @@ wait_until_unfixed:
 				"innodb_change_buffering_debug evict %u %u\n",
 				(unsigned) space, (unsigned) offset);
 			return(NULL);
+		} else if (UNIV_UNLIKELY(buf_block_get_state(block)
+					 != BUF_BLOCK_FILE_PAGE
+				|| (buf_block_get_page_no(block) != page_no)
+				|| (buf_block_get_space(block) != space))) {
+
+				/* buf_LRU_free_block temporarily releases the
+				block mutex, and now block points to something
+				else. */
+				mutex_exit(block_mutex);
+				block = NULL;
+				goto loop2;
+
 		} else if (buf_flush_page_try(block)) {
 			fprintf(stderr,
 				"innodb_change_buffering_debug flush %u %u\n",
@@ -4078,6 +4091,133 @@ buf_get_free_list_len(void)
 
 	return(len);
 }
+
+/*******************************************************************//**
+Collect buffer pool stats information for a buffer pool. Also
+record aggregated stats if there are more than one buffer pool
+in the server */
+UNIV_INTERN
+void
+buf_stats_get_pool_info(
+/*====================*/
+	buf_pool_info_t*	pool_info)	/*!< in/out: buffer pool info
+						to fill */
+{
+	time_t			current_time;
+	double			time_elapsed;
+
+	buf_pool_mutex_enter();
+
+	pool_info->pool_size = buf_pool->curr_size;
+
+	pool_info->lru_len = UT_LIST_GET_LEN(buf_pool->LRU);
+
+	pool_info->old_lru_len = buf_pool->LRU_old_len;
+
+	pool_info->free_list_len = UT_LIST_GET_LEN(buf_pool->free);
+
+	pool_info->flush_list_len = UT_LIST_GET_LEN(buf_pool->flush_list);
+
+	pool_info->n_pend_unzip = UT_LIST_GET_LEN(buf_pool->unzip_LRU);
+
+	pool_info->n_pend_reads = buf_pool->n_pend_reads;
+
+	pool_info->n_pending_flush_lru =
+		 (buf_pool->n_flush[BUF_FLUSH_LRU]
+		  + buf_pool->init_flush[BUF_FLUSH_LRU]);
+
+	pool_info->n_pending_flush_list =
+		 (buf_pool->n_flush[BUF_FLUSH_LIST]
+		  + buf_pool->init_flush[BUF_FLUSH_LIST]);
+
+	pool_info->n_pending_flush_single_page =
+		 (buf_pool->n_flush[BUF_FLUSH_SINGLE_PAGE]
+		  + buf_pool->init_flush[BUF_FLUSH_SINGLE_PAGE]);
+
+	current_time = time(NULL);
+	time_elapsed = 0.001 + difftime(current_time,
+					buf_pool->last_printout_time);
+
+	pool_info->n_pages_made_young = buf_pool->stat.n_pages_made_young;
+
+	pool_info->n_pages_not_made_young =
+		buf_pool->stat.n_pages_not_made_young;
+
+	pool_info->n_pages_read = buf_pool->stat.n_pages_read;
+
+	pool_info->n_pages_created = buf_pool->stat.n_pages_created;
+
+	pool_info->n_pages_written = buf_pool->stat.n_pages_written;
+
+	pool_info->n_page_gets = buf_pool->stat.n_page_gets;
+
+	pool_info->n_ra_pages_read_rnd = buf_pool->stat.n_ra_pages_read_rnd;
+	pool_info->n_ra_pages_read = buf_pool->stat.n_ra_pages_read;
+
+	pool_info->n_ra_pages_evicted = buf_pool->stat.n_ra_pages_evicted;
+
+	pool_info->page_made_young_rate =
+		 (buf_pool->stat.n_pages_made_young
+		  - buf_pool->old_stat.n_pages_made_young) / time_elapsed;
+
+	pool_info->page_not_made_young_rate =
+		 (buf_pool->stat.n_pages_not_made_young
+		  - buf_pool->old_stat.n_pages_not_made_young) / time_elapsed;
+
+	pool_info->pages_read_rate =
+		(buf_pool->stat.n_pages_read
+		  - buf_pool->old_stat.n_pages_read) / time_elapsed;
+
+	pool_info->pages_created_rate =
+		(buf_pool->stat.n_pages_created
+		 - buf_pool->old_stat.n_pages_created) / time_elapsed;
+
+	pool_info->pages_written_rate =
+		(buf_pool->stat.n_pages_written
+		 - buf_pool->old_stat.n_pages_written) / time_elapsed;
+
+	pool_info->n_page_get_delta = buf_pool->stat.n_page_gets
+				      - buf_pool->old_stat.n_page_gets;
+
+	if (pool_info->n_page_get_delta) {
+		pool_info->page_read_delta = buf_pool->stat.n_pages_read
+					     - buf_pool->old_stat.n_pages_read;
+
+		pool_info->young_making_delta =
+			buf_pool->stat.n_pages_made_young
+			- buf_pool->old_stat.n_pages_made_young;
+
+		pool_info->not_young_making_delta =
+			buf_pool->stat.n_pages_not_made_young
+			- buf_pool->old_stat.n_pages_not_made_young;
+	}
+	pool_info->pages_readahead_rnd_rate =
+		 (buf_pool->stat.n_ra_pages_read_rnd
+		  - buf_pool->old_stat.n_ra_pages_read_rnd) / time_elapsed;
+
+
+	pool_info->pages_readahead_rate =
+		 (buf_pool->stat.n_ra_pages_read
+		  - buf_pool->old_stat.n_ra_pages_read) / time_elapsed;
+
+	pool_info->pages_evicted_rate =
+		(buf_pool->stat.n_ra_pages_evicted
+		 - buf_pool->old_stat.n_ra_pages_evicted) / time_elapsed;
+
+	pool_info->unzip_lru_len = UT_LIST_GET_LEN(buf_pool->unzip_LRU);
+
+	pool_info->io_sum = buf_LRU_stat_sum.io;
+
+	pool_info->io_cur = buf_LRU_stat_cur.io;
+
+	pool_info->unzip_sum = buf_LRU_stat_sum.unzip;
+
+	pool_info->unzip_cur = buf_LRU_stat_cur.unzip;
+
+	buf_refresh_io_stats();
+	buf_pool_mutex_exit();
+}
+
 #else /* !UNIV_HOTBACKUP */
 /********************************************************************//**
 Inits a page to the buffer buf_pool, for use in ibbackup --restore. */
@@ -4108,3 +4248,5 @@ buf_page_init_for_backup_restore(
 	}
 }
 #endif /* !UNIV_HOTBACKUP */
+
+
diff --git a/storage/xtradb/buf/buf0lru.c b/storage/xtradb/buf/buf0lru.c
index c53b71632c2..4e3b677d8a9 100644
--- a/storage/xtradb/buf/buf0lru.c
+++ b/storage/xtradb/buf/buf0lru.c
@@ -48,6 +48,7 @@ Created 11/5/1995 Heikki Tuuri
 #include "page0zip.h"
 #include "log0recv.h"
 #include "srv0srv.h"
+#include "srv0start.h"
 
 /** The number of blocks from the LRU_old pointer onward, including
 the block pointed to, must be buf_LRU_old_ratio/BUF_LRU_OLD_RATIO_DIV
@@ -1428,13 +1429,12 @@ buf_LRU_make_block_old(
 Try to free a block.  If bpage is a descriptor of a compressed-only
 page, the descriptor object will be freed as well.
 
-NOTE: If this function returns TRUE, it will temporarily
-release buf_pool_mutex.  Furthermore, the page frame will no longer be
-accessible via bpage.
+NOTE: This will temporarily release buf_pool_mutex.  Furthermore, the
+page frame will no longer be accessible via bpage.
 
-The caller must hold buf_pool_mutex and buf_page_get_mutex(bpage) and
-release these two mutexes after the call.  No other
-buf_page_get_mutex() may be held when calling this function.
+The caller must hold buf_page_get_mutex(bpage) and release this mutex
+after the call.  No other buf_page_get_mutex() may be held when
+calling this function.
 @return TRUE if freed, FALSE otherwise. */
 UNIV_INTERN
 ibool
@@ -2098,6 +2098,12 @@ func_exit:
 /********************************************************************//**
 Dump the LRU page list to the specific file. */
 #define LRU_DUMP_FILE "ib_lru_dump"
+#define LRU_DUMP_TEMP_FILE "ib_lru_dump.tmp"
+#define LRU_OS_FILE_WRITE() \
+	os_file_write(LRU_DUMP_FILE, dump_file, buffer, \
+		(buffers << UNIV_PAGE_SIZE_SHIFT) & 0xFFFFFFFFUL, \
+		(buffers >> (32 - UNIV_PAGE_SIZE_SHIFT)), \
+		UNIV_PAGE_SIZE)
 
 UNIV_INTERN
 ibool
@@ -2109,17 +2115,19 @@ buf_LRU_file_dump(void)
 	byte*		buffer_base = NULL;
 	byte*		buffer = NULL;
 	buf_page_t*	bpage;
+	buf_page_t*	first_bpage;
 	ulint		buffers;
 	ulint		offset;
-	ibool		ret = FALSE;
+	ulint		pages_written;
 	ulint		i;
+	ulint		total_pages;
 
 	for (i = 0; i < srv_n_data_files; i++) {
 		if (strstr(srv_data_file_names[i], LRU_DUMP_FILE) != NULL) {
 			fprintf(stderr,
 				" InnoDB: The name '%s' seems to be used for"
-				" innodb_data_file_path. Dumping LRU list is not"
-				" done for safeness.\n", LRU_DUMP_FILE);
+				" innodb_data_file_path. Dumping LRU list is"
+				"  not done for safeness.\n", LRU_DUMP_FILE);
 			goto end;
 		}
 	}
@@ -2132,7 +2140,7 @@ buf_LRU_file_dump(void)
 		goto end;
 	}
 
-	dump_file = os_file_create(LRU_DUMP_FILE, OS_FILE_OVERWRITE,
+	dump_file = os_file_create(LRU_DUMP_TEMP_FILE, OS_FILE_OVERWRITE,
 				OS_FILE_NORMAL, OS_DATA_FILE, &success);
 	if (!success) {
 		os_file_get_last_error(TRUE);
@@ -2142,12 +2150,21 @@ buf_LRU_file_dump(void)
 	}
 
 	mutex_enter(&LRU_list_mutex);
-	bpage = UT_LIST_GET_LAST(buf_pool->LRU);
+	bpage = first_bpage = UT_LIST_GET_FIRST(buf_pool->LRU);
+	total_pages = UT_LIST_GET_LEN(buf_pool->LRU);
 
-	buffers = offset = 0;
-	while (bpage != NULL) {
-		if (offset == 0) {
-			memset(buffer, 0, UNIV_PAGE_SIZE);
+	buffers = offset = pages_written = 0;
+	while (bpage != NULL && (pages_written++ < total_pages)) {
+
+		buf_page_t*	next_bpage = UT_LIST_GET_NEXT(LRU, bpage);
+
+		if (next_bpage == first_bpage) {
+			mutex_exit(&LRU_list_mutex);
+			success = FALSE;
+			fprintf(stderr,
+				"InnoDB: detected cycle in LRU, skipping "
+				"dump\n");
+			goto end;
 		}
 
 		mach_write_to_4(buffer + offset * 4, bpage->space);
@@ -2156,50 +2173,79 @@ buf_LRU_file_dump(void)
 		offset++;
 
 		if (offset == UNIV_PAGE_SIZE/4) {
-			success = os_file_write(LRU_DUMP_FILE, dump_file, buffer,
-					(buffers << UNIV_PAGE_SIZE_SHIFT) & 0xFFFFFFFFUL,
-					(buffers >> (32 - UNIV_PAGE_SIZE_SHIFT)),
-					UNIV_PAGE_SIZE);
+			mutex_t		*next_block_mutex = NULL;
+
+			if (srv_shutdown_state != SRV_SHUTDOWN_NONE) {
+				mutex_exit(&LRU_list_mutex);
+				success = FALSE;
+				fprintf(stderr,
+					" InnoDB: stopped dumping lru pages"
+					" because of server shutdown.\n");
+				goto end;
+			}
+
+			/* while writing file, release buffer pool mutex but
+			   keep the next page fixed so we don't worry about
+			   our list iterator becoming invalid */
+			if (next_bpage) {
+				next_block_mutex = buf_page_get_mutex(
+							next_bpage);
+
+				mutex_enter(next_block_mutex);
+				next_bpage->buf_fix_count++;
+				mutex_exit(next_block_mutex);
+			}
+			mutex_exit(&LRU_list_mutex);
+
+			success = LRU_OS_FILE_WRITE();
+
+			/* grab this again here so that next_bpage
+			   can't be purged when we drop the fix_count */
+			mutex_enter(&LRU_list_mutex);
+
+			if (next_bpage) {
+				mutex_enter(next_block_mutex);
+				next_bpage->buf_fix_count--;
+				mutex_exit(next_block_mutex);
+			}
 			if (!success) {
 				mutex_exit(&LRU_list_mutex);
 				fprintf(stderr,
-					" InnoDB: cannot write page %lu of %s\n",
+					" InnoDB: cannot write page"
+					" %lu of %s\n",
 					buffers, LRU_DUMP_FILE);
 				goto end;
 			}
 			buffers++;
 			offset = 0;
+			bpage = next_bpage;
+		} else {
+			bpage = UT_LIST_GET_NEXT(LRU, bpage);
 		}
-
-		bpage = UT_LIST_GET_PREV(LRU, bpage);
-	}
+	} /* while(bpage ...) */
 	mutex_exit(&LRU_list_mutex);
 
-	if (offset == 0) {
-		memset(buffer, 0, UNIV_PAGE_SIZE);
-	}
-
 	mach_write_to_4(buffer + offset * 4, 0xFFFFFFFFUL);
 	offset++;
 	mach_write_to_4(buffer + offset * 4, 0xFFFFFFFFUL);
 	offset++;
 
-	success = os_file_write(LRU_DUMP_FILE, dump_file, buffer,
-			(buffers << UNIV_PAGE_SIZE_SHIFT) & 0xFFFFFFFFUL,
-			(buffers >> (32 - UNIV_PAGE_SIZE_SHIFT)),
-			UNIV_PAGE_SIZE);
-	if (!success) {
-		goto end;
-	}
-
-	ret = TRUE;
+	success = LRU_OS_FILE_WRITE();
 end:
-	if (dump_file != (os_file_t) -1)
+	if (dump_file != (os_file_t) -1) {
+		if (success) {
+			success = os_file_flush(dump_file, TRUE);
+		}
 		os_file_close(dump_file);
+	}
+	if (success) {
+		success = os_file_rename(LRU_DUMP_TEMP_FILE,
+			LRU_DUMP_FILE);
+	}
 	if (buffer_base)
 		ut_free(buffer_base);
 
-	return(ret);
+	return(success);
 }
 
 typedef struct {
@@ -2241,6 +2287,7 @@ buf_LRU_file_restore(void)
 	dump_record_t*	records = NULL;
 	ulint		size;
 	ulint		size_high;
+	ulint 		recsize = sizeof(dump_record_t);
 	ulint		length;
 
 	dump_file = os_file_create_simple_no_error_handling(
@@ -2248,7 +2295,15 @@ buf_LRU_file_restore(void)
 	if (!success || !os_file_get_size(dump_file, &size, &size_high)) {
 		os_file_get_last_error(TRUE);
 		fprintf(stderr,
-			" InnoDB: cannot open %s\n", LRU_DUMP_FILE);
+			" InnoDB: cannot open %s,"
+			" buffer pool preload not done\n",
+			LRU_DUMP_FILE);
+		goto end;
+	}
+
+	if (size == 0 || size_high > 0 || size % recsize) {
+		fprintf(stderr, " InnoDB: broken LRU dump file,"
+			" buffer pool preload not done\n");
 		goto end;
 	}
 
@@ -2332,6 +2387,14 @@ buf_LRU_file_restore(void)
 		if (offset % 16 == 15) {
 			os_aio_simulated_wake_handler_threads();
 			buf_flush_free_margin(FALSE);
+			/* skip loading of the rest of the file if we are
+ 			   terminating anyway*/
+			if (srv_shutdown_state != SRV_SHUTDOWN_NONE) {
+				fprintf(stderr,
+					" InnoDB: stopped loading LRU pages"
+					" because of server shutdown.\n");
+				break;
+			}
 		}
 
 		zip_size = fil_space_get_zip_size(space_id);
diff --git a/storage/xtradb/dict/dict0boot.c b/storage/xtradb/dict/dict0boot.c
index 2b6a208321d..538b5f861f5 100644
--- a/storage/xtradb/dict/dict0boot.c
+++ b/storage/xtradb/dict/dict0boot.c
@@ -237,6 +237,166 @@ dict_hdr_create(
 }
 
 /*****************************************************************//**
+Verifies the SYS_STATS table by scanning its clustered index.  This
+function may only be called at InnoDB startup time.
+
+@return	TRUE if SYS_STATS was verified successfully */
+UNIV_INTERN
+ibool
+dict_verify_xtradb_sys_stats(void)
+/*==============================*/
+{
+	dict_index_t* sys_stats_index;
+	ulint	      saved_srv_pass_corrupt_table = srv_pass_corrupt_table;
+	ibool	      result;
+
+	sys_stats_index = dict_table_get_first_index(dict_sys->sys_stats);
+
+	/* Since this may be called only during server startup, avoid hitting
+	   various asserts by using XtraDB pass_corrupt_table option. */
+	srv_pass_corrupt_table = 1;
+	result = btr_validate_index(sys_stats_index, NULL);
+	srv_pass_corrupt_table = saved_srv_pass_corrupt_table;
+
+	return result;
+}
+
+/*****************************************************************//**
+Creates the B-tree for the SYS_STATS clustered index, adds the XtraDB
+mark and the id of the index to the dictionary header page.  Rewrites
+both passed args. */
+static
+void
+dict_create_xtradb_sys_stats(
+/*=========================*/
+	dict_hdr_t**	dict_hdr,	/*!< in/out: dictionary header */
+	mtr_t*		mtr)		/*!< in/out: mtr */
+{
+	ulint	root_page_no;
+
+	root_page_no = btr_create(DICT_CLUSTERED | DICT_UNIQUE,
+				  DICT_HDR_SPACE, 0, DICT_STATS_ID,
+				  dict_ind_redundant, mtr);
+	if (root_page_no == FIL_NULL) {
+		fprintf(stderr, "InnoDB: Warning: failed to create SYS_STATS btr.\n");
+		srv_use_sys_stats_table = FALSE;
+	} else {
+		mlog_write_ulint(*dict_hdr + DICT_HDR_STATS, root_page_no,
+				 MLOG_4BYTES, mtr);
+		mlog_write_dulint(*dict_hdr + DICT_HDR_XTRADB_MARK,
+				  DICT_HDR_XTRADB_FLAG, mtr);
+	}
+	mtr_commit(mtr);
+	/* restart mtr */
+	mtr_start(mtr);
+	*dict_hdr = dict_hdr_get(mtr);
+}
+
+/*****************************************************************//**
+Create the table and index structure of SYS_STATS for the dictionary
+cache and add it there.  If called for the first time, also support
+wrong root page id injection for testing purposes. */
+static
+void
+dict_add_to_cache_xtradb_sys_stats(
+/*===============================*/
+	ibool		first_time __attribute__((unused)),
+					/*!< in: first invocation flag. If
+					TRUE, optionally inject wrong root page
+					id */
+	mem_heap_t*	heap,		/*!< in: memory heap for table/index
+					allocation */
+	dict_hdr_t*	dict_hdr,	/*!< in: dictionary header */
+	mtr_t*		mtr)		/*!< in: mtr */
+{
+	dict_table_t*	table;
+	dict_index_t*	index;
+	ulint		root_page_id;
+	ulint		error;
+
+	table = dict_mem_table_create("SYS_STATS", DICT_HDR_SPACE, 4, 0);
+	table->n_mysql_handles_opened = 1; /* for pin */
+
+	dict_mem_table_add_col(table, heap, "INDEX_ID", DATA_BINARY, 0, 0);
+	dict_mem_table_add_col(table, heap, "KEY_COLS", DATA_INT, 0, 4);
+	dict_mem_table_add_col(table, heap, "DIFF_VALS", DATA_BINARY, 0, 0);
+	dict_mem_table_add_col(table, heap, "NON_NULL_VALS", DATA_BINARY, 0, 0);
+
+	/* The '+ 2' below comes from the fields DB_TRX_ID, DB_ROLL_PTR */
+#if DICT_SYS_STATS_DIFF_VALS_FIELD != 2 + 2
+#error "DICT_SYS_STATS_DIFF_VALS_FIELD != 2 + 2"
+#endif
+#if DICT_SYS_STATS_NON_NULL_VALS_FIELD != 3 + 2
+#error "DICT_SYS_STATS_NON_NULL_VALS_FIELD != 3 + 2"
+#endif
+
+	table->id = DICT_STATS_ID;
+	dict_table_add_to_cache(table, heap);
+	dict_sys->sys_stats = table;
+	mem_heap_empty(heap);
+
+	index = dict_mem_index_create("SYS_STATS", "CLUST_IND",
+				      DICT_HDR_SPACE,
+				      DICT_UNIQUE | DICT_CLUSTERED, 2);
+
+	dict_mem_index_add_field(index, "INDEX_ID", 0);
+	dict_mem_index_add_field(index, "KEY_COLS", 0);
+
+	index->id = DICT_STATS_ID;
+
+	root_page_id = mtr_read_ulint(dict_hdr + DICT_HDR_STATS, MLOG_4BYTES,
+				      mtr);
+#ifdef UNIV_DEBUG
+	if ((srv_sys_stats_root_page != 0) && first_time)
+		root_page_id = srv_sys_stats_root_page;
+#endif
+	error = dict_index_add_to_cache(table, index, root_page_id, FALSE);
+	ut_a(error == DB_SUCCESS);
+
+	mem_heap_empty(heap);
+}
+
+/*****************************************************************//**
+Discard the existing dictionary cache SYS_STATS information, create and
+add it there anew.  Does not touch the old SYS_STATS tablespace page
+under the assumption that they are corrupted or overwritten for other
+purposes. */
+UNIV_INTERN
+void
+dict_recreate_xtradb_sys_stats(void)
+/*================================*/
+{
+	mtr_t		mtr;
+	dict_hdr_t*	dict_hdr;
+	dict_index_t*	sys_stats_clust_idx;
+	mem_heap_t*	heap;
+
+	heap = mem_heap_create(450);
+
+	mutex_enter(&(dict_sys->mutex));
+
+	sys_stats_clust_idx = dict_table_get_first_index(dict_sys->sys_stats);
+	dict_index_remove_from_cache(dict_sys->sys_stats, sys_stats_clust_idx);
+
+	dict_table_remove_from_cache(dict_sys->sys_stats);
+
+	dict_sys->sys_stats = NULL;
+
+	mtr_start(&mtr);
+
+	dict_hdr = dict_hdr_get(&mtr);
+
+	dict_create_xtradb_sys_stats(&dict_hdr, &mtr);
+	dict_add_to_cache_xtradb_sys_stats(FALSE, heap, dict_hdr, &mtr);
+
+	mem_heap_free(heap);
+
+	mtr_commit(&mtr);
+
+	mutex_exit(&(dict_sys->mutex));
+}
+
+/*****************************************************************//**
 Initializes the data dictionary memory structures when the database is
 started. This function is also called when the data dictionary is created. */
 UNIV_INTERN
@@ -251,39 +411,23 @@ dict_boot(void)
 	mtr_t		mtr;
 	ulint		error;
 
+	heap = mem_heap_create(450);
+
 	mtr_start(&mtr);
 
 	/* Create the hash tables etc. */
 	dict_init();
 
-	heap = mem_heap_create(450);
-
 	mutex_enter(&(dict_sys->mutex));
 
 	/* Get the dictionary header */
 	dict_hdr = dict_hdr_get(&mtr);
 
-	if (ut_dulint_cmp(mtr_read_dulint(dict_hdr + DICT_HDR_XTRADB_MARK, &mtr),
-			  DICT_HDR_XTRADB_FLAG) != 0) {
+	if (ut_dulint_cmp(mtr_read_dulint(dict_hdr + DICT_HDR_XTRADB_MARK,
+					  &mtr), DICT_HDR_XTRADB_FLAG) != 0) {
+
 		/* not extended yet by XtraDB, need to be extended */
-		ulint	root_page_no;
-
-		root_page_no = btr_create(DICT_CLUSTERED | DICT_UNIQUE,
-					  DICT_HDR_SPACE, 0, DICT_STATS_ID,
-					  dict_ind_redundant, &mtr);
-		if (root_page_no == FIL_NULL) {
-			fprintf(stderr, "InnoDB: Warning: failed to create SYS_STATS btr.\n");
-			srv_use_sys_stats_table = FALSE;
-		} else {
-			mlog_write_ulint(dict_hdr + DICT_HDR_STATS, root_page_no,
-					 MLOG_4BYTES, &mtr);
-			mlog_write_dulint(dict_hdr + DICT_HDR_XTRADB_MARK,
-					  DICT_HDR_XTRADB_FLAG, &mtr);
-		}
-		mtr_commit(&mtr);
-		/* restart mtr */
-		mtr_start(&mtr);
-		dict_hdr = dict_hdr_get(&mtr);
+		dict_create_xtradb_sys_stats(&dict_hdr, &mtr);
 	}
 
 	/* Because we only write new row ids to disk-based data structure
@@ -464,42 +608,7 @@ dict_boot(void)
 					FALSE);
 	ut_a(error == DB_SUCCESS);
 
-	/*-------------------------*/
-	table = dict_mem_table_create("SYS_STATS", DICT_HDR_SPACE, 4, 0);
-	table->n_mysql_handles_opened = 1; /* for pin */
-
-	dict_mem_table_add_col(table, heap, "INDEX_ID", DATA_BINARY, 0, 0);
-	dict_mem_table_add_col(table, heap, "KEY_COLS", DATA_INT, 0, 4);
-	dict_mem_table_add_col(table, heap, "DIFF_VALS", DATA_BINARY, 0, 0);
-	dict_mem_table_add_col(table, heap, "NON_NULL_VALS", DATA_BINARY, 0, 0);
-
-	/* The '+ 2' below comes from the fields DB_TRX_ID, DB_ROLL_PTR */
-#if DICT_SYS_STATS_DIFF_VALS_FIELD != 2 + 2
-#error "DICT_SYS_STATS_DIFF_VALS_FIELD != 2 + 2"
-#endif
-#if DICT_SYS_STATS_NON_NULL_VALS_FIELD != 3 + 2
-#error "DICT_SYS_STATS_NON_NULL_VALS_FIELD != 3 + 2"
-#endif
-
-	table->id = DICT_STATS_ID;
-	dict_table_add_to_cache(table, heap);
-	dict_sys->sys_stats = table;
-	mem_heap_empty(heap);
-
-	index = dict_mem_index_create("SYS_STATS", "CLUST_IND",
-				      DICT_HDR_SPACE,
-				      DICT_UNIQUE | DICT_CLUSTERED, 2);
-
-	dict_mem_index_add_field(index, "INDEX_ID", 0);
-	dict_mem_index_add_field(index, "KEY_COLS", 0);
-
-	index->id = DICT_STATS_ID;
-	error = dict_index_add_to_cache(table, index,
-					mtr_read_ulint(dict_hdr
-						       + DICT_HDR_STATS,
-						       MLOG_4BYTES, &mtr),
-					FALSE);
-	ut_a(error == DB_SUCCESS);
+	dict_add_to_cache_xtradb_sys_stats(TRUE, heap, dict_hdr, &mtr);
 
 	mem_heap_free(heap);
 
diff --git a/storage/xtradb/dict/dict0dict.c b/storage/xtradb/dict/dict0dict.c
index 574b0e5d7da..65189ba2961 100644
--- a/storage/xtradb/dict/dict0dict.c
+++ b/storage/xtradb/dict/dict0dict.c
@@ -4622,12 +4622,6 @@ next_rec:
 	}
 	btr_pcur_close(&pcur);
 	mtr_commit(&mtr);
-
-	if (rests) {
-		fprintf(stderr, "InnoDB: Warning: failed to store %lu stats entries"
-				" of %s/%s to SYS_STATS system table.\n",
-				rests, index->table_name, index->name);
-	}
 }
 /*===========================================*/
 
@@ -5394,6 +5388,28 @@ dict_table_replace_index_in_foreign_list(
 			foreign->foreign_index = new_index;
 		}
 	}
+
+
+	for (foreign = UT_LIST_GET_FIRST(table->referenced_list);
+	     foreign;
+	     foreign = UT_LIST_GET_NEXT(referenced_list, foreign)) {
+
+		dict_index_t*	new_index;
+
+		if (foreign->referenced_index == index) {
+			ut_ad(foreign->referenced_table == index->table);
+
+			new_index = dict_foreign_find_index(
+				foreign->referenced_table,
+				foreign->referenced_col_names,
+				foreign->n_fields, index,
+				/*check_charsets=*/TRUE, /*check_null=*/FALSE);
+			ut_ad(new_index || !trx->check_foreigns);
+			ut_ad(!new_index || new_index->table == index->table);
+
+			foreign->referenced_index = new_index;
+		}
+	}
 }
 
 /**********************************************************************//**
diff --git a/storage/xtradb/dict/dict0load.c b/storage/xtradb/dict/dict0load.c
index d026306a646..015d88852e9 100644
--- a/storage/xtradb/dict/dict0load.c
+++ b/storage/xtradb/dict/dict0load.c
@@ -165,7 +165,7 @@ dict_print(void)
 	monitor printout */
 
 	mutex_enter(&kernel_mutex);
-	srv_fatal_semaphore_wait_threshold += 7200; /* 2 hours */
+	srv_fatal_semaphore_wait_threshold += SRV_SEMAPHORE_WAIT_EXTENSION;
 	mutex_exit(&kernel_mutex);
 
 	mutex_enter(&(dict_sys->mutex));
@@ -193,7 +193,7 @@ loop:
 		/* Restore the fatal semaphore wait timeout */
 
 		mutex_enter(&kernel_mutex);
-		srv_fatal_semaphore_wait_threshold -= 7200; /* 2 hours */
+		srv_fatal_semaphore_wait_threshold -= SRV_SEMAPHORE_WAIT_EXTENSION;
 		mutex_exit(&kernel_mutex);
 
 		return;
diff --git a/storage/xtradb/fil/fil0fil.c b/storage/xtradb/fil/fil0fil.c
index 1cc6654a88e..c035b628eb1 100644
--- a/storage/xtradb/fil/fil0fil.c
+++ b/storage/xtradb/fil/fil0fil.c
@@ -1876,7 +1876,7 @@ fil_inc_pending_ops(
 
 	if (space == NULL) {
 		fprintf(stderr,
-			"InnoDB: Error: trying to do ibuf merge to a"
+			"InnoDB: Error: trying to do an operation on a"
 			" dropped tablespace %lu\n",
 			(ulong) id);
 	}
@@ -3375,6 +3375,7 @@ skip_info:
 			for (offset = 0; offset < free_limit_bytes;
 			     offset += zip_size ? zip_size : UNIV_PAGE_SIZE) {
 				ibool		page_is_corrupt;
+				ibool		is_descr_page = FALSE;
 
 				success = os_file_read(file, page,
 							(ulint)(offset & 0xFFFFFFFFUL),
@@ -3413,6 +3414,7 @@ skip_info:
 
 					/* store as descr page */
 					memcpy(descr_page, page, (zip_size ? zip_size : UNIV_PAGE_SIZE));
+					is_descr_page = TRUE;
 
 				} else if (descr_is_corrupt) {
 					/* unknown state of the page */
@@ -3489,7 +3491,8 @@ skip_info:
 						}
 					}
 
-					if (fil_page_get_type(page) == FIL_PAGE_INDEX) {
+					if (fil_page_get_type(page) ==
+					    FIL_PAGE_INDEX && !is_descr_page) {
 						dulint tmp = mach_read_from_8(page + (PAGE_HEADER + PAGE_INDEX_ID));
 
 						for (i = 0; i < n_index; i++) {
diff --git a/storage/xtradb/handler/ha_innodb.cc b/storage/xtradb/handler/ha_innodb.cc
index 8f3f0ffee4c..a9592d4a748 100644
--- a/storage/xtradb/handler/ha_innodb.cc
+++ b/storage/xtradb/handler/ha_innodb.cc
@@ -195,6 +195,9 @@ static my_bool	innobase_rollback_on_timeout		= FALSE;
 static my_bool	innobase_create_status_file		= FALSE;
 static my_bool	innobase_stats_on_metadata		= TRUE;
 static my_bool	innobase_use_sys_stats_table		= FALSE;
+#ifdef UNIV_DEBUG
+static ulong    innobase_sys_stats_root_page		= 0;
+#endif
 static my_bool	innobase_buffer_pool_shm_checksum	= TRUE;
 static uint	innobase_buffer_pool_shm_key		= 0;
 
@@ -939,11 +942,23 @@ convert_error_code_to_mysql(
 	case DB_TABLE_NOT_FOUND:
 		return(HA_ERR_NO_SUCH_TABLE);
 
-	case DB_TOO_BIG_RECORD:
-		my_error(ER_TOO_BIG_ROWSIZE, MYF(0),
-			 page_get_free_space_of_empty(flags
-						      & DICT_TF_COMPACT) / 2);
+	case DB_TOO_BIG_RECORD: {
+		/* If prefix is true then a 768-byte prefix is stored
+		locally for BLOB fields. Refer to dict_table_get_format() */
+		bool prefix = ((flags & DICT_TF_FORMAT_MASK)
+		 	       >> DICT_TF_FORMAT_SHIFT) < UNIV_FORMAT_B;
+		my_printf_error(ER_TOO_BIG_ROWSIZE,
+			"Row size too large (> %lu). Changing some columns "
+			"to TEXT or BLOB %smay help. In current row "
+			"format, BLOB prefix of %d bytes is stored inline.",
+			MYF(0),
+			page_get_free_space_of_empty(flags &
+				DICT_TF_COMPACT) / 2,
+			prefix ? "or using ROW_FORMAT=DYNAMIC "
+			"or ROW_FORMAT=COMPRESSED ": "",
+			prefix ? DICT_MAX_INDEX_COL_LEN : 0);
 		return(HA_ERR_TO_BIG_ROW);
+	}
 
 	case DB_NO_SAVEPOINT:
 		return(HA_ERR_NO_SAVEPOINT);
@@ -2369,6 +2384,10 @@ mem_free_and_error:
 
 	srv_use_sys_stats_table = (ibool) innobase_use_sys_stats_table;
 
+#ifdef UNIV_DEBUG
+	srv_sys_stats_root_page = innobase_sys_stats_root_page;
+#endif
+
 	/* -------------- Log files ---------------------------*/
 
 	/* The default dir for log files is the datadir of MySQL */
@@ -4268,6 +4287,27 @@ table_opened:
 }
 
 UNIV_INTERN
+handler*
+ha_innobase::clone(
+/*===============*/
+	const char*	name,		/*!< in: table name */
+	MEM_ROOT*	mem_root)	/*!< in: memory context */
+{
+	ha_innobase* new_handler;
+
+	DBUG_ENTER("ha_innobase::clone");
+
+	new_handler = static_cast<ha_innobase*>(handler::clone(name,
+							       mem_root));
+	if (new_handler) {
+		new_handler->prebuilt->select_lock_type
+			= prebuilt->select_lock_type;
+	}
+
+	DBUG_RETURN(new_handler);
+}
+
+UNIV_INTERN
 uint
 ha_innobase::max_supported_key_part_length() const
 {
@@ -8695,7 +8735,7 @@ ha_innobase::check(
 
 	/* Enlarge the fatal lock wait timeout during CHECK TABLE. */
 	mutex_enter(&kernel_mutex);
-	srv_fatal_semaphore_wait_threshold += 7200; /* 2 hours */
+	srv_fatal_semaphore_wait_threshold += SRV_SEMAPHORE_WAIT_EXTENSION;
 	mutex_exit(&kernel_mutex);
 
 	for (index = dict_table_get_first_index(prebuilt->table);
@@ -8791,7 +8831,7 @@ ha_innobase::check(
 
 	/* Restore the fatal lock wait timeout after CHECK TABLE. */
 	mutex_enter(&kernel_mutex);
-	srv_fatal_semaphore_wait_threshold -= 7200; /* 2 hours */
+	srv_fatal_semaphore_wait_threshold -= SRV_SEMAPHORE_WAIT_EXTENSION;
 	mutex_exit(&kernel_mutex);
 
 	prebuilt->trx->op_info = "";
@@ -11762,6 +11802,13 @@ static MYSQL_SYSVAR_BOOL(use_sys_stats_table, innobase_use_sys_stats_table,
   "So you should use ANALYZE TABLE command intentionally.",
   NULL, NULL, FALSE);
 
+#ifdef UNIV_DEBUG
+static MYSQL_SYSVAR_ULONG(persistent_stats_root_page,
+  innobase_sys_stats_root_page, PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
+  "Override the SYS_STATS root page id, 0 = no override (for testing only)",
+  NULL, NULL, 0, 0, ULONG_MAX, 0);
+#endif
+
 static MYSQL_SYSVAR_BOOL(adaptive_hash_index, btr_search_enabled,
   PLUGIN_VAR_OPCMDARG,
   "Enable InnoDB adaptive hash index (enabled by default).  "
@@ -11945,6 +11992,18 @@ static MYSQL_SYSVAR_ENUM(stats_method, srv_innodb_stats_method,
   "NULLS_UNEQUAL and NULLS_IGNORED",
    NULL, NULL, SRV_STATS_NULLS_EQUAL, &innodb_stats_method_typelib);
 
+static MYSQL_SYSVAR_BOOL(track_changed_pages, srv_track_changed_pages,
+    PLUGIN_VAR_NOCMDARG | PLUGIN_VAR_READONLY,
+    "Track the redo log for changed pages and output a changed page bitmap",
+    NULL, NULL, FALSE);
+
+static MYSQL_SYSVAR_ULONGLONG(changed_pages_limit, srv_changed_pages_limit,
+  PLUGIN_VAR_RQCMDARG,
+  "The maximum number of rows for "
+  "INFORMATION_SCHEMA.INNODB_CHANGED_PAGES table, "
+  "0 - unlimited",
+  NULL, NULL, 1000000, 0, ~0ULL, 0);
+
 #if defined UNIV_DEBUG || defined UNIV_IBUF_DEBUG
 static MYSQL_SYSVAR_UINT(change_buffering_debug, ibuf_debug,
   PLUGIN_VAR_RQCMDARG,
@@ -12081,7 +12140,7 @@ static MYSQL_SYSVAR_UINT(auto_lru_dump, srv_auto_lru_dump,
   NULL, NULL, 0, 0, UINT_MAX32, 0);
 
 static MYSQL_SYSVAR_BOOL(blocking_lru_restore, innobase_blocking_lru_restore,
-  PLUGIN_VAR_NOCMDARG | PLUGIN_VAR_READONLY,
+  PLUGIN_VAR_OPCMDARG | PLUGIN_VAR_READONLY,
   "Block XtraDB startup process until buffer pool is full restored from a "
   "dump file (if present). Disabled by default.",
   NULL, NULL, FALSE);
@@ -12160,6 +12219,9 @@ static struct st_mysql_sys_var* innobase_system_variables[]= {
   MYSQL_SYSVAR(stats_auto_update),
   MYSQL_SYSVAR(stats_update_need_lock),
   MYSQL_SYSVAR(use_sys_stats_table),
+#ifdef UNIV_DEBUG
+  MYSQL_SYSVAR(persistent_stats_root_page),
+#endif
   MYSQL_SYSVAR(stats_sample_pages),
   MYSQL_SYSVAR(adaptive_hash_index),
   MYSQL_SYSVAR(stats_method),
@@ -12191,6 +12253,8 @@ static struct st_mysql_sys_var* innobase_system_variables[]= {
   MYSQL_SYSVAR(dict_size_limit),
   MYSQL_SYSVAR(use_sys_malloc),
   MYSQL_SYSVAR(change_buffering),
+  MYSQL_SYSVAR(track_changed_pages),
+  MYSQL_SYSVAR(changed_pages_limit),
 #if defined UNIV_DEBUG || defined UNIV_IBUF_DEBUG
   MYSQL_SYSVAR(change_buffering_debug),
 #endif /* UNIV_DEBUG || UNIV_IBUF_DEBUG */
@@ -12241,7 +12305,10 @@ i_s_innodb_admin_command,
 i_s_innodb_sys_tables,
 i_s_innodb_sys_indexes,
 i_s_innodb_sys_stats,
-i_s_innodb_patches
+i_s_innodb_changed_pages,
+i_s_innodb_buffer_page,
+i_s_innodb_buffer_page_lru,
+i_s_innodb_buffer_stats
 mysql_declare_plugin_end;
 maria_declare_plugin(xtradb)
 { /* InnoDB */
@@ -12276,7 +12343,10 @@ i_s_innodb_admin_command_maria,
 i_s_innodb_sys_tables_maria,
 i_s_innodb_sys_indexes_maria,
 i_s_innodb_sys_stats_maria,
-i_s_innodb_patches_maria
+i_s_innodb_changed_pages_maria,
+i_s_innodb_buffer_page_maria,
+i_s_innodb_buffer_page_lru_maria,
+i_s_innodb_buffer_stats_maria
 maria_declare_plugin_end;
 
 
diff --git a/storage/xtradb/handler/ha_innodb.h b/storage/xtradb/handler/ha_innodb.h
index 1e18b3a22b9..d04fe24cf79 100644
--- a/storage/xtradb/handler/ha_innodb.h
+++ b/storage/xtradb/handler/ha_innodb.h
@@ -133,6 +133,7 @@ class ha_innobase: public handler
 	const key_map* keys_to_use_for_scanning();
 
 	int open(const char *name, int mode, uint test_if_locked);
+	handler* clone(const char *name, MEM_ROOT *mem_root);
 	int close(void);
 	double scan_time();
 	double read_time(uint index, uint ranges, ha_rows rows);
diff --git a/storage/xtradb/handler/handler0alter.cc b/storage/xtradb/handler/handler0alter.cc
index 5efc3f96fa3..c746f65bf14 100644
--- a/storage/xtradb/handler/handler0alter.cc
+++ b/storage/xtradb/handler/handler0alter.cc
@@ -668,6 +668,10 @@ ha_innobase::add_index(
 		DBUG_RETURN(HA_ERR_NO_SUCH_TABLE);
 	}
 
+	if (innodb_table->tablespace_discarded) {
+		DBUG_RETURN(-1);
+	}
+
 	/* Check that index keys are sensible */
 	error = innobase_check_index_keys(key_info, num_of_keys, innodb_table);
 
@@ -823,6 +827,8 @@ ha_innobase::add_index(
 					innodb_table, indexed_table,
 					index, num_of_idx, table);
 
+	DBUG_EXECUTE_IF("crash_innodb_add_index_after", DBUG_SUICIDE(););
+
 error_handling:
 	/* After an error, remove all those index definitions from the
 	dictionary which were defined. */
diff --git a/storage/xtradb/handler/i_s.cc b/storage/xtradb/handler/i_s.cc
index af5c7278231..ea6d3039c2d 100644
--- a/storage/xtradb/handler/i_s.cc
+++ b/storage/xtradb/handler/i_s.cc
@@ -22,8 +22,15 @@ InnoDB INFORMATION SCHEMA tables interface to MySQL.
 
 Created July 18, 2007 Vasil Dimov
 *******************************************************/
-
+#ifndef MYSQL_SERVER
+#define MYSQL_SERVER /* For Item_* classes */
+#include <mysql_priv.h>
+/* Prevent influence of this definition to other headers */
+#undef MYSQL_SERVER
+#else
 #include <mysql_priv.h>
+#endif //MYSQL_SERVER
+
 #include <mysqld_error.h>
 
 #include <m_ctype.h>
@@ -32,7 +39,6 @@ Created July 18, 2007 Vasil Dimov
 #include <mysys_err.h>
 #include <my_sys.h>
 #include "i_s.h"
-#include "innodb_patch_info.h"
 #include <mysql/plugin.h>
 
 extern "C" {
@@ -41,6 +47,7 @@ extern "C" {
 #include "buf0buddy.h" /* for i_s_cmpmem */
 #include "buf0buf.h" /* for buf_pool and PAGE_ZIP_MIN_SIZE */
 #include "ha_prototypes.h" /* for innobase_convert_name() */
+#include "srv0srv.h" /* for srv_track_changed_pages */
 #include "srv0start.h" /* for srv_was_started */
 #include "btr0btr.h" /* for btr_page_get_index_id */
 #include "trx0rseg.h" /* for trx_rseg_struct */
@@ -48,10 +55,91 @@ extern "C" {
 #include "dict0dict.h" /* for dict_sys */
 #include "btr0pcur.h"
 #include "buf0lru.h" /* for XTRA_LRU_[DUMP/RESTORE] */
+#include "log0online.h"
+#include "btr0btr.h"
+#include "log0log.h"
 }
 
 static const char plugin_author[] = "Innobase Oy";
 
+/** structure associates a name string with a file page type and/or buffer
+page state. */
+struct buffer_page_desc_str_struct{
+        const char*     type_str;       /*!< String explain the page
+                                        type/state */
+        ulint           type_value;     /*!< Page type or page state */
+};
+
+typedef struct buffer_page_desc_str_struct      buf_page_desc_str_t;
+
+/** Any states greater than FIL_PAGE_TYPE_LAST would be treated as unknown. */
+#define I_S_PAGE_TYPE_UNKNOWN           (FIL_PAGE_TYPE_LAST + 1)
+
+/** We also define I_S_PAGE_TYPE_INDEX as the Index Page's position
+in i_s_page_type[] array */
+#define I_S_PAGE_TYPE_INDEX             1
+
+/** Name string for File Page Types */
+static buf_page_desc_str_t      i_s_page_type[] = {
+        {"ALLOCATED", FIL_PAGE_TYPE_ALLOCATED},
+        {"INDEX", FIL_PAGE_INDEX},
+        {"UNDO_LOG", FIL_PAGE_UNDO_LOG},
+        {"INODE", FIL_PAGE_INODE},
+        {"IBUF_FREE_LIST", FIL_PAGE_IBUF_FREE_LIST},
+        {"IBUF_BITMAP", FIL_PAGE_IBUF_BITMAP},
+        {"SYSTEM", FIL_PAGE_TYPE_SYS},
+        {"TRX_SYSTEM", FIL_PAGE_TYPE_TRX_SYS},
+        {"FILE_SPACE_HEADER", FIL_PAGE_TYPE_FSP_HDR},
+        {"EXTENT_DESCRIPTOR", FIL_PAGE_TYPE_XDES},
+        {"BLOB", FIL_PAGE_TYPE_BLOB},
+        {"COMPRESSED_BLOB", FIL_PAGE_TYPE_ZBLOB},
+        {"COMPRESSED_BLOB2", FIL_PAGE_TYPE_ZBLOB2},
+        {"UNKNOWN", I_S_PAGE_TYPE_UNKNOWN}
+};
+
+/* Check if we can hold all page type in a 4 bit value */
+#if I_S_PAGE_TYPE_UNKNOWN > 1<<4
+# error "i_s_page_type[] is too large"
+#endif
+
+/** This structure defines information we will fetch from pages
+currently cached in the buffer pool. It will be used to populate
+table INFORMATION_SCHEMA.INNODB_BUFFER_PAGE */
+struct buffer_page_info_struct{
+        ulint           block_id;       /*!< Buffer Pool block ID */
+        unsigned        space_id:32;    /*!< Tablespace ID */
+        unsigned        page_num:32;    /*!< Page number/offset */
+        unsigned        access_time:32; /*!< Time of first access */
+        unsigned        flush_type:2;   /*!< Flush type */
+        unsigned        io_fix:2;       /*!< type of pending I/O operation */
+        unsigned        fix_count:19;   /*!< Count of how manyfold this block
+                                        is bufferfixed */
+        unsigned        hashed:1;       /*!< Whether hash index has been
+                                        built on this page */
+        unsigned        is_old:1;       /*!< TRUE if the block is in the old
+                                        blocks in buf_pool->LRU_old */
+        unsigned        freed_page_clock:31; /*!< the value of
+                                        buf_pool->freed_page_clock */
+        unsigned        zip_ssize:PAGE_ZIP_SSIZE_BITS;
+                                        /*!< Compressed page size */
+        unsigned        page_state:BUF_PAGE_STATE_BITS; /*!< Page state */
+        unsigned        page_type:4;    /*!< Page type */
+        unsigned        num_recs;
+                                        /*!< Number of records on Page */
+        unsigned	data_size;
+                                        /*!< Sum of the sizes of the records */
+        lsn_t		newest_mod;     /*!< Log sequence number of
+                                        the youngest modification */
+        lsn_t		oldest_mod;     /*!< Log sequence number of
+                                        the oldest modification */
+        dulint		index_id;       /*!< Index ID if a index page */
+};
+
+typedef struct buffer_page_info_struct  buf_page_info_t;
+
+/** maximum number of buffer page info we would cache. */
+#define MAX_BUF_INFO_CACHED             10000
+
 #define OK(expr)		\
 	if ((expr) != 0) {	\
 		DBUG_RETURN(1);	\
@@ -224,221 +312,11 @@ field_store_ulint(
 	return(ret);
 }
 
-/* Fields of the dynamic table INFORMATION_SCHEMA.innodb_patches */
-static ST_FIELD_INFO	innodb_patches_fields_info[] =
-{
-#define IDX_PATCH_NAME		0
-	{STRUCT_FLD(field_name,		"name"),
-	 STRUCT_FLD(field_length,	255),
-	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
-	 STRUCT_FLD(value,		0),
-	 STRUCT_FLD(field_flags,	0),
-	 STRUCT_FLD(old_name,		""),
-	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
-
-#define IDX_PATCH_DESCR		1
-	{STRUCT_FLD(field_name,		"description"),
-	 STRUCT_FLD(field_length,	255),
-	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
-	 STRUCT_FLD(value,		0),
-	 STRUCT_FLD(field_flags,	0),
-	 STRUCT_FLD(old_name,		""),
-	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
-
-#define IDX_PATCH_COMMENT		2
-	{STRUCT_FLD(field_name,		"comment"),
-	 STRUCT_FLD(field_length,	100),
-	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
-	 STRUCT_FLD(value,		0),
-	 STRUCT_FLD(field_flags,	0),
-	 STRUCT_FLD(old_name,		""),
-	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
-
-#define IDX_PATCH_LINK			3
-	{STRUCT_FLD(field_name,		"link"),
-	 STRUCT_FLD(field_length,	255),
-	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
-	 STRUCT_FLD(value,		0),
-	 STRUCT_FLD(field_flags,	0),
-	 STRUCT_FLD(old_name,		""),
-	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
-
-	END_OF_ST_FIELD_INFO
-};
-
 static struct st_mysql_information_schema	i_s_info =
 {
 	MYSQL_INFORMATION_SCHEMA_INTERFACE_VERSION
 };
 
-/***********************************************************************
-Fill the dynamic table information_schema.innodb_patches */
-static
-int
-innodb_patches_fill(
-/*=============*/
-				/* out: 0 on success, 1 on failure */
-	THD*		thd,	/* in: thread */
-	TABLE_LIST*	tables,	/* in/out: tables to fill */
-	COND*		cond)	/* in: condition (ignored) */
-{
-	TABLE*	table	= (TABLE *) tables->table;
-	int	status	= 0;
-	int	i;
-	Field**	fields;
-
-
-	DBUG_ENTER("innodb_patches_fill");
-	fields = table->field;
-
-	/* deny access to non-superusers */
-	if (check_global_access(thd, PROCESS_ACL)) {
-
-		DBUG_RETURN(0);
-	}
-
-	RETURN_IF_INNODB_NOT_STARTED(tables->schema_table_name);
-	
-	for (i = 0; innodb_enhancements[i].file; i++) {
-
-   	field_store_string(fields[0],innodb_enhancements[i].file);
-   	field_store_string(fields[1],innodb_enhancements[i].name);
-   	field_store_string(fields[2],innodb_enhancements[i].comment);
-   	field_store_string(fields[3],innodb_enhancements[i].link);
-
-	if (schema_table_store_record(thd, table)) {
-		status = 1;
-		break;
-	}
-
-	}
-
-
-	DBUG_RETURN(status);
-}
-
-/***********************************************************************
-Bind the dynamic table information_schema.innodb_patches. */
-static
-int
-innodb_patches_init(
-/*=========*/
-			/* out: 0 on success */
-	void*	p)	/* in/out: table schema object */
-{
-	DBUG_ENTER("innodb_patches_init");
-	ST_SCHEMA_TABLE* schema = (ST_SCHEMA_TABLE*) p;
-
-	schema->fields_info = innodb_patches_fields_info;
-	schema->fill_table = innodb_patches_fill;
-
-	DBUG_RETURN(0);
-}
-
-
-UNIV_INTERN struct st_mysql_plugin      i_s_innodb_patches =
-{
-        /* the plugin type (a MYSQL_XXX_PLUGIN value) */
-        /* int */
-        STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
-
-        /* pointer to type-specific plugin descriptor */
-        /* void* */
-        STRUCT_FLD(info, &i_s_info),
-
-        /* plugin name */
-        /* const char* */
-        STRUCT_FLD(name, "XTRADB_ENHANCEMENTS"),
-
-        /* plugin author (for SHOW PLUGINS) */
-        /* const char* */
-        STRUCT_FLD(author, "Percona"),
-
-        /* general descriptive text (for SHOW PLUGINS) */
-        /* const char* */
-        STRUCT_FLD(descr, "Enhancements applied to InnoDB plugin"),
-
-        /* the plugin license (PLUGIN_LICENSE_XXX) */
-        /* int */
-        STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
-
-        /* the function to invoke when plugin is loaded */
-        /* int (*)(void*); */
-        STRUCT_FLD(init, innodb_patches_init),
-
-        /* the function to invoke when plugin is unloaded */
-        /* int (*)(void*); */
-        STRUCT_FLD(deinit, i_s_common_deinit),
-
-        /* plugin version (for SHOW PLUGINS) */
-        /* unsigned int */
-        STRUCT_FLD(version, INNODB_VERSION_SHORT),
-
-        /* struct st_mysql_show_var* */
-        STRUCT_FLD(status_vars, NULL),
-
-        /* struct st_mysql_sys_var** */
-        STRUCT_FLD(system_vars, NULL),
-
-        /* reserved for dependency checking */
-        /* void* */
-        STRUCT_FLD(__reserved1, NULL)
-};
-
-UNIV_INTERN struct st_maria_plugin      i_s_innodb_patches_maria =
-{
-        /* the plugin type (a MYSQL_XXX_PLUGIN value) */
-        /* int */
-        STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
-
-        /* pointer to type-specific plugin descriptor */
-        /* void* */
-        STRUCT_FLD(info, &i_s_info),
-
-        /* plugin name */
-        /* const char* */
-        STRUCT_FLD(name, "XTRADB_ENHANCEMENTS"),
-
-        /* plugin author (for SHOW PLUGINS) */
-        /* const char* */
-        STRUCT_FLD(author, "Percona"),
-
-        /* general descriptive text (for SHOW PLUGINS) */
-        /* const char* */
-        STRUCT_FLD(descr, "Enhancements applied to InnoDB plugin"),
-
-        /* the plugin license (PLUGIN_LICENSE_XXX) */
-        /* int */
-        STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
-
-        /* the function to invoke when plugin is loaded */
-        /* int (*)(void*); */
-        STRUCT_FLD(init, innodb_patches_init),
-
-        /* the function to invoke when plugin is unloaded */
-        /* int (*)(void*); */
-        STRUCT_FLD(deinit, i_s_common_deinit),
-
-        /* plugin version (for SHOW PLUGINS) */
-        /* unsigned int */
-        STRUCT_FLD(version, INNODB_VERSION_SHORT),
-
-        /* struct st_mysql_show_var* */
-        STRUCT_FLD(status_vars, NULL),
-
-        /* struct st_mysql_sys_var** */
-        STRUCT_FLD(system_vars, NULL),
-
-        /* string version */
-        /* const char * */
-        STRUCT_FLD(version_info, "1.0"),
-
-        /* Maturity */
-        /* int */
-        STRUCT_FLD(maturity, MariaDB_PLUGIN_MATURITY_STABLE)
-};
-
-
 static ST_FIELD_INFO	i_s_innodb_buffer_pool_pages_fields_info[] =
 {
 	{STRUCT_FLD(field_name,		"page_type"),
@@ -2328,6 +2206,8 @@ i_s_cmp_fill_low(
 
 	DBUG_ENTER("i_s_cmp_fill_low");
 
+	RETURN_IF_INNODB_NOT_STARTED(tables->schema_table_name);
+
 	/* deny access to non-superusers */
 	if (check_global_access(thd, PROCESS_ACL)) {
 
@@ -2702,6 +2582,8 @@ i_s_cmpmem_fill_low(
 
 	DBUG_ENTER("i_s_cmpmem_fill_low");
 
+	RETURN_IF_INNODB_NOT_STARTED(tables->schema_table_name);
+
 	/* deny access to non-superusers */
 	if (check_global_access(thd, PROCESS_ACL)) {
 
@@ -3097,6 +2979,8 @@ i_s_innodb_rseg_fill(
 
 	DBUG_ENTER("i_s_innodb_rseg_fill");
 
+	RETURN_IF_INNODB_NOT_STARTED(tables->schema_table_name);
+
 	/* deny access to non-superusers */
 	if (check_global_access(thd, PROCESS_ACL)) {
 
@@ -3283,6 +3167,8 @@ i_s_innodb_admin_command_fill(
 
 	DBUG_ENTER("i_s_innodb_admin_command_fill");
 
+	RETURN_IF_INNODB_NOT_STARTED(tables->schema_table_name);
+
 	/* deny access to non-superusers */
 	if (check_global_access(thd, PROCESS_ACL)) {
 		DBUG_RETURN(0);
@@ -3557,6 +3443,8 @@ i_s_innodb_table_stats_fill(
 
 	DBUG_ENTER("i_s_innodb_table_stats_fill");
 
+	RETURN_IF_INNODB_NOT_STARTED(tables->schema_table_name);
+
 	/* deny access to non-superusers */
 	if (check_global_access(thd, PROCESS_ACL)) {
 		DBUG_RETURN(0);
@@ -3620,6 +3508,8 @@ i_s_innodb_index_stats_fill(
 
 	DBUG_ENTER("i_s_innodb_index_stats_fill");
 
+	RETURN_IF_INNODB_NOT_STARTED(tables->schema_table_name);
+
 	/* deny access to non-superusers */
 	if (check_global_access(thd, PROCESS_ACL)) {
 		DBUG_RETURN(0);
@@ -4302,6 +4192,8 @@ i_s_innodb_schema_table_fill(
 
 	DBUG_ENTER("i_s_innodb_schema_table_fill");
 
+	RETURN_IF_INNODB_NOT_STARTED(tables->schema_table_name);
+
 	/* deny access to non-superusers */
 	if (check_global_access(thd, PROCESS_ACL)) {
 		DBUG_RETURN(0);
@@ -4525,3 +4417,2125 @@ UNIV_INTERN struct st_maria_plugin   i_s_innodb_sys_stats_maria =
         STRUCT_FLD(maturity, MariaDB_PLUGIN_MATURITY_BETA)
 };
 
+static ST_FIELD_INFO	i_s_innodb_changed_pages_info[] =
+{
+	{STRUCT_FLD(field_name,		"space_id"),
+	 STRUCT_FLD(field_length,	MY_INT32_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+	{STRUCT_FLD(field_name,		"page_id"),
+	 STRUCT_FLD(field_length,	MY_INT32_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+	{STRUCT_FLD(field_name,		"start_lsn"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+	{STRUCT_FLD(field_name,		"end_lsn"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+	END_OF_ST_FIELD_INFO
+};
+
+/***********************************************************************
+  This function parses condition and gets upper bounds for start and end LSN's
+  if condition corresponds to certain pattern.
+
+  We can't know right position to avoid scanning bitmap files from the beginning
+  to the lower bound. But we can stop scanning bitmap files if we reach upper bound.
+
+  It's expected the most used queries will be like the following:
+
+  SELECT * FROM INNODB_CHANGED_PAGES WHERE START_LSN > num1 AND start_lsn < num2;
+
+  That's why the pattern is:
+
+  pattern:  comp | and_comp;
+  comp:     lsn <  int_num | lsn <= int_num | int_num > lsn  | int_num >= lsn;
+  lsn:	    start_lsn | end_lsn;
+  and_comp: some_expression AND some_expression  | some_expression AND and_comp;
+  some_expression: comp	| any_other_expression;
+
+  Suppose the condition is start_lsn < 100, this means we have to read all
+  blocks with start_lsn < 100. Which is equivalent to reading all the blocks
+  with end_lsn <= 99, or just end_lsn < 100. That's why it's enough to find
+  maximum lsn value, doesn't matter if this is start or end lsn and compare
+  it with "start_lsn" field.
+
+  Example:
+
+  SELECT * FROM INNODB_CHANGED_PAGES
+    WHERE
+    start_lsn > 10  AND
+    end_lsn <= 1111 AND
+    555 > end_lsn   AND
+    page_id = 100;
+
+  max_lsn will be set to 555.
+*/
+static
+void
+limit_lsn_range_from_condition(
+/*===========================*/
+	TABLE*		table,   /*!<in: table */
+	COND*		cond,    /*!<in: condition */
+	ib_uint64_t*	max_lsn) /*!<in/out: maximum LSN
+				 (must be initialized with maximum
+				 available value) */
+{
+	if (cond->type() != Item::COND_ITEM &&
+	    cond->type() != Item::FUNC_ITEM)
+		return;
+
+	switch (((Item_func*) cond)->functype())
+	{
+		case Item_func::COND_AND_FUNC:
+		{
+			List_iterator<Item>	li(*((Item_cond*) cond)->
+						   argument_list());
+			Item			*item;
+			while ((item= li++))
+				limit_lsn_range_from_condition(table,
+							       item,
+							       max_lsn);
+			break;
+		}
+		case Item_func::LT_FUNC:
+		case Item_func::LE_FUNC:
+		case Item_func::GT_FUNC:
+		case Item_func::GE_FUNC:
+		{
+			Item			*left;
+			Item			*right;
+			Item_field		*item_field;
+			ib_uint64_t		tmp_result;
+
+			/*
+			   a <= b equals to b >= a that's why we just exchange
+			   "left" and "right" in the case of ">" or ">="
+			   function
+			*/
+			if (((Item_func*) cond)->functype() ==
+				Item_func::LT_FUNC ||
+			    ((Item_func*) cond)->functype() ==
+				Item_func::LE_FUNC)
+			{
+				left = ((Item_func*) cond)->arguments()[0];
+				right = ((Item_func*) cond)->arguments()[1];
+			} else {
+				left = ((Item_func*) cond)->arguments()[1];
+				right = ((Item_func*) cond)->arguments()[0];
+			}
+
+			if (!left || !right)
+				return;
+			if (left->type() != Item::FIELD_ITEM)
+				return;
+			if (right->type() != Item::INT_ITEM)
+				return;
+
+			item_field = (Item_field*)left;
+
+			if (/* START_LSN */
+			    table->field[2] != item_field->field &&
+			    /* END_LSN */
+			    table->field[3] != item_field->field)
+			{
+				return;
+			}
+
+			/* Check if the current field belongs to our table */
+			if (table != item_field->field->table)
+				return;
+
+			tmp_result = right->val_int();
+			if (tmp_result < *max_lsn)
+				*max_lsn = tmp_result;
+
+			break;
+		}
+		default:;
+	}
+
+}
+
+/***********************************************************************
+Fill the dynamic table information_schema.innodb_changed_pages.
+@return 0 on success, 1 on failure */
+static
+int
+i_s_innodb_changed_pages_fill(
+/*==========================*/
+	THD*		thd,	/*!<in: thread */
+	TABLE_LIST*	tables,	/*!<in/out: tables to fill */
+	COND*		cond)	/*!<in: condition */
+{
+	TABLE*			table = (TABLE *) tables->table;
+	log_bitmap_iterator_t	i;
+	ib_uint64_t		output_rows_num = 0UL;
+	ib_uint64_t		max_lsn = ~0ULL;
+
+	if (!srv_track_changed_pages)
+		return 0;
+
+	if (!log_online_bitmap_iterator_init(&i))
+		return 1;
+
+	if (cond)
+		limit_lsn_range_from_condition(table, cond, &max_lsn);
+
+	while(log_online_bitmap_iterator_next(&i) &&
+	      (!srv_changed_pages_limit ||
+	       output_rows_num < srv_changed_pages_limit) &&
+	      /*
+	        There is no need to compare both start LSN and end LSN fields
+	        with maximum value. It's enough to compare only start LSN.
+	        Example:
+
+	                              max_lsn = 100
+	        \\\\\\\\\\\\\\\\\\\\\\\\\|\\\\\\\\        - Query 1
+	        I------I I-------I I-------------I I----I
+		//////////////////       |                - Query 2
+	           1        2             3          4
+
+	        Query 1:
+	        SELECT * FROM INNODB_CHANGED_PAGES WHERE start_lsn < 100
+	        will select 1,2,3 bitmaps
+	        Query 2:
+	        SELECT * FROM INNODB_CHANGED_PAGES WHERE end_lsn < 100
+	        will select 1,2 bitmaps
+
+	        The condition start_lsn <= 100 will be false after reading
+	        1,2,3 bitmaps which suits for both cases.
+	      */
+	      LOG_BITMAP_ITERATOR_START_LSN(i) <= max_lsn)
+	{
+		if (!LOG_BITMAP_ITERATOR_PAGE_CHANGED(i))
+			continue;
+
+		/* SPACE_ID */
+		table->field[0]->store(
+				       LOG_BITMAP_ITERATOR_SPACE_ID(i));
+		/* PAGE_ID */
+		table->field[1]->store(
+				       LOG_BITMAP_ITERATOR_PAGE_NUM(i));
+		/* START_LSN */
+		table->field[2]->store(
+				       LOG_BITMAP_ITERATOR_START_LSN(i));
+		/* END_LSN */
+		table->field[3]->store(
+				       LOG_BITMAP_ITERATOR_END_LSN(i));
+
+		/*
+		  I_S tables are in-memory tables. If bitmap file is big enough
+		  a lot of memory can be used to store the table. But the size
+		  of used memory can be diminished if we store only data which
+		  corresponds to some conditions (in WHERE sql clause). Here
+		  conditions are checked for the field values stored above.
+
+		  Conditions are checked twice. The first is here (during table
+		  generation) and the second during query execution. Maybe it
+		  makes sense to use some flag in THD object to avoid double
+		  checking.
+		*/
+		if (cond && !cond->val_int())
+			continue;
+
+		if (schema_table_store_record(thd, table))
+		{
+			log_online_bitmap_iterator_release(&i);
+			return 1;
+		}
+
+		++output_rows_num;
+	}
+
+	log_online_bitmap_iterator_release(&i);
+	return 0;
+}
+
+static
+int
+i_s_innodb_changed_pages_init(
+/*==========================*/
+	void*	p)
+{
+	DBUG_ENTER("i_s_innodb_changed_pages_init");
+	ST_SCHEMA_TABLE* schema = (ST_SCHEMA_TABLE*) p;
+
+	schema->fields_info = i_s_innodb_changed_pages_info;
+	schema->fill_table = i_s_innodb_changed_pages_fill;
+
+	DBUG_RETURN(0);
+}
+
+UNIV_INTERN struct st_mysql_plugin   i_s_innodb_changed_pages =
+{
+	STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
+	STRUCT_FLD(info, &i_s_info),
+	STRUCT_FLD(name, "INNODB_CHANGED_PAGES"),
+	STRUCT_FLD(author, "Percona"),
+	STRUCT_FLD(descr, "InnoDB CHANGED_PAGES table"),
+	STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
+	STRUCT_FLD(init, i_s_innodb_changed_pages_init),
+	STRUCT_FLD(deinit, i_s_common_deinit),
+	STRUCT_FLD(version, 0x0100 /* 1.0 */),
+	STRUCT_FLD(status_vars, NULL),
+	STRUCT_FLD(system_vars, NULL),
+	STRUCT_FLD(__reserved1, NULL)
+};
+
+UNIV_INTERN struct st_maria_plugin   i_s_innodb_changed_pages_maria =
+{
+	STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
+	STRUCT_FLD(info, &i_s_info),
+	STRUCT_FLD(name, "INNODB_CHANGED_PAGES"),
+	STRUCT_FLD(author, "Percona"),
+	STRUCT_FLD(descr, "InnoDB CHANGED_PAGES table"),
+	STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
+	STRUCT_FLD(init, i_s_innodb_changed_pages_init),
+	STRUCT_FLD(deinit, i_s_common_deinit),
+	STRUCT_FLD(version, 0x0100 /* 1.0 */),
+	STRUCT_FLD(status_vars, NULL),
+	STRUCT_FLD(system_vars, NULL),
+        STRUCT_FLD(version_info, "1.0"),
+        STRUCT_FLD(maturity, MariaDB_PLUGIN_MATURITY_BETA)
+};
+
+/* Fields of the dynamic table INNODB_BUFFER_POOL_STATS. */
+static ST_FIELD_INFO	i_s_innodb_buffer_stats_fields_info[] =
+{
+#define IDX_BUF_STATS_POOL_SIZE		0
+	{STRUCT_FLD(field_name,		"POOL_SIZE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_FREE_BUFFERS	1
+	{STRUCT_FLD(field_name,		"FREE_BUFFERS"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_LRU_LEN		2
+	{STRUCT_FLD(field_name,		"DATABASE_PAGES"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_OLD_LRU_LEN	3
+	{STRUCT_FLD(field_name,		"OLD_DATABASE_PAGES"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_FLUSH_LIST_LEN	4
+	{STRUCT_FLD(field_name,		"MODIFIED_DATABASE_PAGES"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_PENDING_ZIP	5
+	{STRUCT_FLD(field_name,		"PENDING_DECOMPRESS"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_PENDING_READ	6
+	{STRUCT_FLD(field_name,		"PENDING_READS"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_FLUSH_LRU		7
+	{STRUCT_FLD(field_name,		"PENDING_FLUSH_LRU"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_FLUSH_LIST	8
+	{STRUCT_FLD(field_name,		"PENDING_FLUSH_LIST"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_PAGE_YOUNG	9
+	{STRUCT_FLD(field_name,		"PAGES_MADE_YOUNG"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_PAGE_NOT_YOUNG	10
+	{STRUCT_FLD(field_name,		"PAGES_NOT_MADE_YOUNG"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define	IDX_BUF_STATS_PAGE_YOUNG_RATE	11
+	{STRUCT_FLD(field_name,		"PAGES_MADE_YOUNG_RATE"),
+	 STRUCT_FLD(field_length,	MAX_FLOAT_STR_LENGTH),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_FLOAT),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define	IDX_BUF_STATS_PAGE_NOT_YOUNG_RATE 12
+	{STRUCT_FLD(field_name,		"PAGES_MADE_NOT_YOUNG_RATE"),
+	 STRUCT_FLD(field_length,	MAX_FLOAT_STR_LENGTH),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_FLOAT),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_PAGE_READ		13
+	{STRUCT_FLD(field_name,		"NUMBER_PAGES_READ"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_PAGE_CREATED	14
+	{STRUCT_FLD(field_name,		"NUMBER_PAGES_CREATED"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_PAGE_WRITTEN	15
+	{STRUCT_FLD(field_name,		"NUMBER_PAGES_WRITTEN"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define	IDX_BUF_STATS_PAGE_READ_RATE	16
+	{STRUCT_FLD(field_name,		"PAGES_READ_RATE"),
+	 STRUCT_FLD(field_length,	MAX_FLOAT_STR_LENGTH),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_FLOAT),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define	IDX_BUF_STATS_PAGE_CREATE_RATE	17
+	{STRUCT_FLD(field_name,		"PAGES_CREATE_RATE"),
+	 STRUCT_FLD(field_length,	MAX_FLOAT_STR_LENGTH),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_FLOAT),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define	IDX_BUF_STATS_PAGE_WRITTEN_RATE	18
+	{STRUCT_FLD(field_name,		"PAGES_WRITTEN_RATE"),
+	 STRUCT_FLD(field_length,	MAX_FLOAT_STR_LENGTH),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_FLOAT),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_GET		19
+	{STRUCT_FLD(field_name,		"NUMBER_PAGES_GET"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_HIT_RATE		20
+	{STRUCT_FLD(field_name,		"HIT_RATE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_MADE_YOUNG_PCT	21
+	{STRUCT_FLD(field_name,		"YOUNG_MAKE_PER_THOUSAND_GETS"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_NOT_MADE_YOUNG_PCT 22
+	{STRUCT_FLD(field_name,		"NOT_YOUNG_MAKE_PER_THOUSAND_GETS"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_READ_AHREAD	23
+	{STRUCT_FLD(field_name,		"NUMBER_PAGES_READ_AHEAD"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_READ_AHEAD_EVICTED 24
+	{STRUCT_FLD(field_name,		"NUMBER_READ_AHEAD_EVICTED"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define	IDX_BUF_STATS_READ_AHEAD_RATE	25
+	{STRUCT_FLD(field_name,		"READ_AHEAD_RATE"),
+	 STRUCT_FLD(field_length,	MAX_FLOAT_STR_LENGTH),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_FLOAT),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define	IDX_BUF_STATS_READ_AHEAD_EVICT_RATE 26
+	{STRUCT_FLD(field_name,		"READ_AHEAD_EVICTED_RATE"),
+	 STRUCT_FLD(field_length,	MAX_FLOAT_STR_LENGTH),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_FLOAT),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	0),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_LRU_IO_SUM	27
+	{STRUCT_FLD(field_name,		"LRU_IO_TOTAL"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_LRU_IO_CUR	28
+	{STRUCT_FLD(field_name,		"LRU_IO_CURRENT"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_UNZIP_SUM		29
+	{STRUCT_FLD(field_name,		"UNCOMPRESS_TOTAL"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_STATS_UNZIP_CUR		30
+	{STRUCT_FLD(field_name,		"UNCOMPRESS_CURRENT"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+	END_OF_ST_FIELD_INFO
+};
+
+/*******************************************************************//**
+Fill Information Schema table INNODB_BUFFER_POOL_STATS for a particular
+buffer pool
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_stats_fill(
+/*==================*/
+	THD*			thd,		/*!< in: thread */
+	TABLE_LIST*		tables,		/*!< in/out: tables to fill */
+	const buf_pool_info_t*	info)		/*!< in: buffer pool
+						information */
+{
+	TABLE*			table;
+	Field**			fields;
+
+	DBUG_ENTER("i_s_innodb_stats_fill");
+
+	table = tables->table;
+
+	fields = table->field;
+
+	OK(fields[IDX_BUF_STATS_POOL_SIZE]->store(info->pool_size));
+
+	OK(fields[IDX_BUF_STATS_LRU_LEN]->store(info->lru_len));
+
+	OK(fields[IDX_BUF_STATS_OLD_LRU_LEN]->store(info->old_lru_len));
+
+	OK(fields[IDX_BUF_STATS_FREE_BUFFERS]->store(info->free_list_len));
+
+	OK(fields[IDX_BUF_STATS_FLUSH_LIST_LEN]->store(
+		info->flush_list_len));
+
+	OK(fields[IDX_BUF_STATS_PENDING_ZIP]->store(info->n_pend_unzip));
+
+	OK(fields[IDX_BUF_STATS_PENDING_READ]->store(info->n_pend_reads));
+
+	OK(fields[IDX_BUF_STATS_FLUSH_LRU]->store(info->n_pending_flush_lru));
+
+	OK(fields[IDX_BUF_STATS_FLUSH_LIST]->store(info->n_pending_flush_list));
+
+	OK(fields[IDX_BUF_STATS_PAGE_YOUNG]->store(info->n_pages_made_young));
+
+	OK(fields[IDX_BUF_STATS_PAGE_NOT_YOUNG]->store(
+		info->n_pages_not_made_young));
+
+	OK(fields[IDX_BUF_STATS_PAGE_YOUNG_RATE]->store(
+		info->page_made_young_rate));
+
+	OK(fields[IDX_BUF_STATS_PAGE_NOT_YOUNG_RATE]->store(
+		info->page_not_made_young_rate));
+
+	OK(fields[IDX_BUF_STATS_PAGE_READ]->store(info->n_pages_read));
+
+	OK(fields[IDX_BUF_STATS_PAGE_CREATED]->store(info->n_pages_created));
+
+	OK(fields[IDX_BUF_STATS_PAGE_WRITTEN]->store(info->n_pages_written));
+
+	OK(fields[IDX_BUF_STATS_GET]->store(info->n_page_gets));
+
+	OK(fields[IDX_BUF_STATS_PAGE_READ_RATE]->store(info->pages_read_rate));
+
+	OK(fields[IDX_BUF_STATS_PAGE_CREATE_RATE]->store(info->pages_created_rate));
+
+	OK(fields[IDX_BUF_STATS_PAGE_WRITTEN_RATE]->store(info->pages_written_rate));
+
+	if (info->n_page_get_delta) {
+		OK(fields[IDX_BUF_STATS_HIT_RATE]->store(
+			1000 - (1000 * info->page_read_delta
+				/ info->n_page_get_delta)));
+
+		OK(fields[IDX_BUF_STATS_MADE_YOUNG_PCT]->store(
+			1000 * info->young_making_delta
+			/ info->n_page_get_delta));
+
+		OK(fields[IDX_BUF_STATS_NOT_MADE_YOUNG_PCT]->store(
+			1000 * info->not_young_making_delta
+			/ info->n_page_get_delta));
+	} else {
+		OK(fields[IDX_BUF_STATS_HIT_RATE]->store(0));
+		OK(fields[IDX_BUF_STATS_MADE_YOUNG_PCT]->store(0));
+		OK(fields[IDX_BUF_STATS_NOT_MADE_YOUNG_PCT]->store(0));
+	}
+
+	OK(fields[IDX_BUF_STATS_READ_AHREAD]->store(info->n_ra_pages_read));
+
+	OK(fields[IDX_BUF_STATS_READ_AHEAD_EVICTED]->store(
+		info->n_ra_pages_evicted));
+
+	OK(fields[IDX_BUF_STATS_READ_AHEAD_RATE]->store(
+		info->pages_readahead_rate));
+
+	OK(fields[IDX_BUF_STATS_READ_AHEAD_EVICT_RATE]->store(
+		info->pages_evicted_rate));
+
+	OK(fields[IDX_BUF_STATS_LRU_IO_SUM]->store(info->io_sum));
+
+	OK(fields[IDX_BUF_STATS_LRU_IO_CUR]->store(info->io_cur));
+
+	OK(fields[IDX_BUF_STATS_UNZIP_SUM]->store(info->unzip_sum));
+
+	OK(fields[IDX_BUF_STATS_UNZIP_CUR]->store( info->unzip_cur));
+
+	DBUG_RETURN(schema_table_store_record(thd, table));
+}
+
+/*******************************************************************//**
+This is the function that loops through each buffer pool and fetch buffer
+pool stats to information schema  table: I_S_INNODB_BUFFER_POOL_STATS
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buffer_stats_fill_table(
+/*===============================*/
+	THD*		thd,		/*!< in: thread */
+	TABLE_LIST*	tables,		/*!< in/out: tables to fill */
+	Item*		)		/*!< in: condition (ignored) */
+{
+	int			status	= 0;
+	buf_pool_info_t*	pool_info;
+
+	DBUG_ENTER("i_s_innodb_buffer_fill_general");
+
+	/* Only allow the PROCESS privilege holder to access the stats */
+	if (check_global_access(thd, PROCESS_ACL)) {
+		DBUG_RETURN(0);
+	}
+
+	pool_info = (buf_pool_info_t*) mem_zalloc(sizeof *pool_info);
+
+	/* Fetch individual buffer pool info */
+	buf_stats_get_pool_info(pool_info);
+	status = i_s_innodb_stats_fill(thd, tables, pool_info);
+
+	mem_free(pool_info);
+
+	DBUG_RETURN(status);
+}
+
+/*******************************************************************//**
+Bind the dynamic table INFORMATION_SCHEMA.INNODB_BUFFER_POOL_STATS.
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buffer_pool_stats_init(
+/*==============================*/
+	void*	p)	/*!< in/out: table schema object */
+{
+	ST_SCHEMA_TABLE*	schema;
+
+	DBUG_ENTER("i_s_innodb_buffer_pool_stats_init");
+
+	schema = reinterpret_cast<ST_SCHEMA_TABLE*>(p);
+
+	schema->fields_info = i_s_innodb_buffer_stats_fields_info;
+	schema->fill_table = i_s_innodb_buffer_stats_fill_table;
+
+	DBUG_RETURN(0);
+}
+
+UNIV_INTERN struct st_mysql_plugin	i_s_innodb_buffer_stats =
+{
+	/* the plugin type (a MYSQL_XXX_PLUGIN value) */
+	/* int */
+	STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
+
+	/* pointer to type-specific plugin descriptor */
+	/* void* */
+	STRUCT_FLD(info, &i_s_info),
+
+	/* plugin name */
+	/* const char* */
+	STRUCT_FLD(name, "INNODB_BUFFER_POOL_STATS"),
+
+	/* plugin author (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(author, plugin_author),
+
+	/* general descriptive text (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(descr, "InnoDB Buffer Pool Statistics Information "),
+
+	/* the plugin license (PLUGIN_LICENSE_XXX) */
+	/* int */
+	STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
+
+	/* the function to invoke when plugin is loaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(init, i_s_innodb_buffer_pool_stats_init),
+
+	/* the function to invoke when plugin is unloaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(deinit, i_s_common_deinit),
+
+	/* plugin version (for SHOW PLUGINS) */
+	/* unsigned int */
+	STRUCT_FLD(version, INNODB_VERSION_SHORT),
+
+	/* struct st_mysql_show_var* */
+	STRUCT_FLD(status_vars, NULL),
+
+	/* struct st_mysql_sys_var** */
+	STRUCT_FLD(system_vars, NULL),
+
+	/* reserved for dependency checking */
+	/* void* */
+	STRUCT_FLD(__reserved1, NULL),
+};
+
+UNIV_INTERN struct st_maria_plugin	i_s_innodb_buffer_stats_maria =
+{
+	/* the plugin type (a MYSQL_XXX_PLUGIN value) */
+	/* int */
+	STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
+
+	/* pointer to type-specific plugin descriptor */
+	/* void* */
+	STRUCT_FLD(info, &i_s_info),
+
+	/* plugin name */
+	/* const char* */
+	STRUCT_FLD(name, "INNODB_BUFFER_POOL_STATS"),
+
+	/* plugin author (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(author, plugin_author),
+
+	/* general descriptive text (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(descr, "InnoDB Buffer Pool Statistics Information "),
+
+	/* the plugin license (PLUGIN_LICENSE_XXX) */
+	/* int */
+	STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
+
+	/* the function to invoke when plugin is loaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(init, i_s_innodb_buffer_pool_stats_init),
+
+	/* the function to invoke when plugin is unloaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(deinit, i_s_common_deinit),
+
+	/* plugin version (for SHOW PLUGINS) */
+	/* unsigned int */
+	STRUCT_FLD(version, INNODB_VERSION_SHORT),
+
+	/* struct st_mysql_show_var* */
+	STRUCT_FLD(status_vars, NULL),
+
+	/* struct st_mysql_sys_var** */
+	STRUCT_FLD(system_vars, NULL),
+
+        STRUCT_FLD(version_info, "1.0"),
+        STRUCT_FLD(maturity, MariaDB_PLUGIN_MATURITY_BETA)
+};
+
+/* Fields of the dynamic table INNODB_BUFFER_POOL_PAGE. */
+static ST_FIELD_INFO	i_s_innodb_buffer_page_fields_info[] =
+{
+#define IDX_BUFFER_BLOCK_ID		0
+	{STRUCT_FLD(field_name,		"BLOCK_ID"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_SPACE		1
+	{STRUCT_FLD(field_name,		"SPACE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_NUM		2
+	{STRUCT_FLD(field_name,		"PAGE_NUMBER"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_TYPE		3
+	{STRUCT_FLD(field_name,		"PAGE_TYPE"),
+	 STRUCT_FLD(field_length,	64),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_FLUSH_TYPE	4
+	{STRUCT_FLD(field_name,		"FLUSH_TYPE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_FIX_COUNT	5
+	{STRUCT_FLD(field_name,		"FIX_COUNT"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_HASHED		6
+	{STRUCT_FLD(field_name,		"IS_HASHED"),
+	 STRUCT_FLD(field_length,	3),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_NEWEST_MOD	7
+	{STRUCT_FLD(field_name,		"NEWEST_MODIFICATION"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_OLDEST_MOD	8
+	{STRUCT_FLD(field_name,		"OLDEST_MODIFICATION"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_ACCESS_TIME	 9
+	{STRUCT_FLD(field_name,		"ACCESS_TIME"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_TABLE_NAME	10
+	{STRUCT_FLD(field_name,		"TABLE_NAME"),
+	 STRUCT_FLD(field_length,	1024),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_INDEX_NAME	11
+	{STRUCT_FLD(field_name,		"INDEX_NAME"),
+	 STRUCT_FLD(field_length,	1024),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_NUM_RECS	12
+	{STRUCT_FLD(field_name,		"NUMBER_RECORDS"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_DATA_SIZE	13
+	{STRUCT_FLD(field_name,		"DATA_SIZE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_ZIP_SIZE	14
+	{STRUCT_FLD(field_name,		"COMPRESSED_SIZE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_STATE		15
+	{STRUCT_FLD(field_name,		"PAGE_STATE"),
+	 STRUCT_FLD(field_length,	64),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_IO_FIX		16
+	{STRUCT_FLD(field_name,		"IO_FIX"),
+	 STRUCT_FLD(field_length,	64),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_IS_OLD		17
+	{STRUCT_FLD(field_name,		"IS_OLD"),
+	 STRUCT_FLD(field_length,	3),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUFFER_PAGE_FREE_CLOCK	18
+	{STRUCT_FLD(field_name,		"FREE_PAGE_CLOCK"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+	END_OF_ST_FIELD_INFO
+};
+
+/*******************************************************************//**
+Fill Information Schema table INNODB_BUFFER_PAGE with information
+cached in the buf_page_info_t array
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buffer_page_fill(
+/*========================*/
+	THD*			thd,		/*!< in: thread */
+	TABLE_LIST*		tables,		/*!< in/out: tables to fill */
+	const buf_page_info_t*	info_array,	/*!< in: array cached page
+						info */
+	ulint			num_page,	/*!< in: number of page info
+						 cached */
+	mem_heap_t*		heap)		/*!< in: temp heap memory */
+{
+	TABLE*			table;
+	Field**			fields;
+
+	DBUG_ENTER("i_s_innodb_buffer_page_fill");
+
+	table = tables->table;
+
+	fields = table->field;
+
+	/* Iterate through the cached array and fill the I_S table rows */
+	for (ulint i = 0; i < num_page; i++) {
+		const buf_page_info_t*	page_info;
+		const char*		table_name;
+		const char*		index_name;
+		const char*		state_str;
+		enum buf_page_state	state;
+
+		page_info = info_array + i;
+
+		table_name = NULL;
+		index_name = NULL;
+		state_str = NULL;
+
+		OK(fields[IDX_BUFFER_BLOCK_ID]->store(page_info->block_id));
+
+		OK(fields[IDX_BUFFER_PAGE_SPACE]->store(page_info->space_id));
+
+		OK(fields[IDX_BUFFER_PAGE_NUM]->store(page_info->page_num));
+
+		OK(field_store_string(
+			fields[IDX_BUFFER_PAGE_TYPE],
+			i_s_page_type[page_info->page_type].type_str));
+
+		OK(fields[IDX_BUFFER_PAGE_FLUSH_TYPE]->store(
+			page_info->flush_type));
+
+		OK(fields[IDX_BUFFER_PAGE_FIX_COUNT]->store(
+			page_info->fix_count));
+
+		if (page_info->hashed) {
+			OK(field_store_string(
+				fields[IDX_BUFFER_PAGE_HASHED], "YES"));
+		} else {
+			OK(field_store_string(
+				fields[IDX_BUFFER_PAGE_HASHED], "NO"));
+		}
+
+		OK(fields[IDX_BUFFER_PAGE_NEWEST_MOD]->store(
+			(longlong) page_info->newest_mod, true));
+
+		OK(fields[IDX_BUFFER_PAGE_OLDEST_MOD]->store(
+			(longlong) page_info->oldest_mod, true));
+
+		OK(fields[IDX_BUFFER_PAGE_ACCESS_TIME]->store(
+			page_info->access_time));
+
+		/* If this is an index page, fetch the index name
+		and table name */
+		if (page_info->page_type == I_S_PAGE_TYPE_INDEX) {
+			const dict_index_t*	index;
+
+			mutex_enter(&dict_sys->mutex);
+			index = dict_index_get_if_in_cache_low(
+				page_info->index_id);
+
+			/* Copy the index/table name under mutex. We
+			do not want to hold the InnoDB mutex while
+			filling the IS table */
+			if (index) {
+				const char*	name_ptr = index->name;
+
+				if (name_ptr[0] == TEMP_INDEX_PREFIX) {
+					name_ptr++;
+				}
+
+				index_name = mem_heap_strdup(heap, name_ptr);
+
+				table_name = mem_heap_strdup(heap,
+							     index->table_name);
+
+			}
+
+			mutex_exit(&dict_sys->mutex);
+		}
+
+		OK(field_store_string(
+			fields[IDX_BUFFER_PAGE_TABLE_NAME], table_name));
+
+		OK(field_store_string(
+			fields[IDX_BUFFER_PAGE_INDEX_NAME], index_name));
+
+		OK(fields[IDX_BUFFER_PAGE_NUM_RECS]->store(
+			page_info->num_recs));
+
+		OK(fields[IDX_BUFFER_PAGE_DATA_SIZE]->store(
+			page_info->data_size));
+
+		OK(fields[IDX_BUFFER_PAGE_ZIP_SIZE]->store(
+			page_info->zip_ssize
+			? (PAGE_ZIP_MIN_SIZE >> 1) << page_info->zip_ssize
+			: 0));
+
+#if BUF_PAGE_STATE_BITS > 3
+# error "BUF_PAGE_STATE_BITS > 3, please ensure that all 1<<BUF_PAGE_STATE_BITS values are checked for"
+#endif
+		state = static_cast<enum buf_page_state>(page_info->page_state);
+
+		switch (state) {
+		/* First three states are for compression pages and
+		are not states we would get as we scan pages through
+		buffer blocks */
+		case BUF_BLOCK_ZIP_FREE:
+		case BUF_BLOCK_ZIP_PAGE:
+		case BUF_BLOCK_ZIP_DIRTY:
+			state_str = NULL;
+			break;
+		case BUF_BLOCK_NOT_USED:
+			state_str = "NOT_USED";
+			break;
+		case BUF_BLOCK_READY_FOR_USE:
+			state_str = "READY_FOR_USE";
+			break;
+		case BUF_BLOCK_FILE_PAGE:
+			state_str = "FILE_PAGE";
+			break;
+		case BUF_BLOCK_MEMORY:
+			state_str = "MEMORY";
+			break;
+		case BUF_BLOCK_REMOVE_HASH:
+			state_str = "REMOVE_HASH";
+			break;
+		};
+
+		OK(field_store_string(fields[IDX_BUFFER_PAGE_STATE],
+				      state_str));
+
+		switch (page_info->io_fix) {
+		case BUF_IO_NONE:
+			OK(field_store_string(fields[IDX_BUFFER_PAGE_IO_FIX],
+					      "IO_NONE"));
+			break;
+		case BUF_IO_READ:
+			OK(field_store_string(fields[IDX_BUFFER_PAGE_IO_FIX],
+					      "IO_READ"));
+			break;
+		case BUF_IO_WRITE:
+			OK(field_store_string(fields[IDX_BUFFER_PAGE_IO_FIX],
+					      "IO_WRITE"));
+			break;
+		}
+
+		OK(field_store_string(fields[IDX_BUFFER_PAGE_IS_OLD],
+				      (page_info->is_old) ? "YES" : "NO"));
+
+		OK(fields[IDX_BUFFER_PAGE_FREE_CLOCK]->store(
+			page_info->freed_page_clock));
+
+		if (schema_table_store_record(thd, table)) {
+			DBUG_RETURN(1);
+		}
+	}
+
+	DBUG_RETURN(0);
+}
+
+/*******************************************************************//**
+Set appropriate page type to a buf_page_info_t structure */
+static
+void
+i_s_innodb_set_page_type(
+/*=====================*/
+	buf_page_info_t*page_info,	/*!< in/out: structure to fill with
+					scanned info */
+	ulint		page_type,	/*!< in: page type */
+	const byte*	frame)		/*!< in: buffer frame */
+{
+	if (page_type == FIL_PAGE_INDEX) {
+		const page_t*	page = (const page_t*) frame;
+
+		/* FIL_PAGE_INDEX is a bit special, its value
+		is defined as 17855, so we cannot use FIL_PAGE_INDEX
+		to index into i_s_page_type[] array, its array index
+		in the i_s_page_type[] array is I_S_PAGE_TYPE_INDEX
+		(1) */
+		page_info->page_type = I_S_PAGE_TYPE_INDEX;
+
+		page_info->index_id = btr_page_get_index_id(page);
+
+		page_info->data_size = (ulint)(page_header_get_field(
+			page, PAGE_HEAP_TOP) - (page_is_comp(page)
+						? PAGE_NEW_SUPREMUM_END
+						: PAGE_OLD_SUPREMUM_END)
+			- page_header_get_field(page, PAGE_GARBAGE));
+
+		page_info->num_recs = page_get_n_recs(page);
+	} else if (page_type >= I_S_PAGE_TYPE_UNKNOWN) {
+		/* Encountered an unknown page type */
+		page_info->page_type = I_S_PAGE_TYPE_UNKNOWN;
+	} else {
+		/* Make sure we get the right index into the
+		i_s_page_type[] array */
+		ut_a(page_type == i_s_page_type[page_type].type_value);
+
+		page_info->page_type = page_type;
+	}
+
+	if (page_info->page_type == FIL_PAGE_TYPE_ZBLOB
+	    || page_info->page_type == FIL_PAGE_TYPE_ZBLOB2) {
+		page_info->page_num = mach_read_from_4(
+			frame + FIL_PAGE_OFFSET);
+		page_info->space_id = mach_read_from_4(
+			frame + FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID);
+	}
+}
+
+/*******************************************************************//**
+Scans pages in the buffer cache, and collect their general information
+into the buf_page_info_t array which is zero-filled. So any fields
+that are not initialized in the function will default to 0 */
+static
+void
+i_s_innodb_buffer_page_get_info(
+/*============================*/
+	const buf_page_t*bpage,		/*!< in: buffer pool page to scan */
+	ulint		pos,		/*!< in: buffer block position in
+					buffer pool or in the LRU list */
+	buf_page_info_t*page_info)	/*!< in: zero filled info structure;
+					out: structure filled with scanned
+					info */
+{
+	page_info->block_id = pos;
+
+	page_info->page_state = buf_page_get_state(bpage);
+
+	/* Only fetch information for buffers that map to a tablespace,
+	that is, buffer page with state BUF_BLOCK_ZIP_PAGE,
+	BUF_BLOCK_ZIP_DIRTY or BUF_BLOCK_FILE_PAGE */
+	if (buf_page_in_file(bpage)) {
+		const byte*	frame;
+		ulint		page_type;
+
+		page_info->space_id = buf_page_get_space(bpage);
+
+		page_info->page_num = buf_page_get_page_no(bpage);
+
+		page_info->flush_type = bpage->flush_type;
+
+		page_info->fix_count = bpage->buf_fix_count;
+
+		page_info->newest_mod = bpage->newest_modification;
+
+		page_info->oldest_mod = bpage->oldest_modification;
+
+		page_info->access_time = bpage->access_time;
+
+		page_info->zip_ssize = bpage->zip.ssize;
+
+		page_info->io_fix = bpage->io_fix;
+
+		page_info->is_old = bpage->old;
+
+		page_info->freed_page_clock = bpage->freed_page_clock;
+
+		if (page_info->page_state == BUF_BLOCK_FILE_PAGE) {
+			const buf_block_t*block;
+
+			block = reinterpret_cast<const buf_block_t*>(bpage);
+			frame = block->frame;
+			page_info->hashed = (block->index != NULL);
+		} else {
+			ut_ad(page_info->zip_ssize);
+			frame = bpage->zip.data;
+		}
+
+		page_type = fil_page_get_type(frame);
+
+		i_s_innodb_set_page_type(page_info, page_type, frame);
+	} else {
+		page_info->page_type = I_S_PAGE_TYPE_UNKNOWN;
+	}
+}
+
+/*******************************************************************//**
+This is the function that goes through each block of the buffer pool
+and fetch information to information schema tables: INNODB_BUFFER_PAGE.
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_fill_buffer_pool(
+/*========================*/
+	THD*			thd,		/*!< in: thread */
+	TABLE_LIST*		tables)		/*!< in/out: tables to fill */
+{
+	int			status	= 0;
+	mem_heap_t*		heap;
+
+	DBUG_ENTER("i_s_innodb_fill_buffer_pool");
+
+	heap = mem_heap_create(10000);
+
+	/* Go through each chunk of buffer pool. Currently, we only
+	have one single chunk for each buffer pool */
+	for (ulint n = 0; n < buf_pool->n_chunks; n++) {
+		const buf_block_t*	block;
+		ulint			n_blocks;
+		buf_page_info_t*	info_buffer;
+		ulint			num_page;
+		ulint			mem_size;
+		ulint			chunk_size;
+		ulint			num_to_process = 0;
+		ulint			block_id = 0;
+		mutex_t*		block_mutex;
+
+		/* Get buffer block of the nth chunk */
+		block = buf_get_nth_chunk_block(buf_pool, n, &chunk_size);
+		num_page = 0;
+
+		while (chunk_size > 0) {
+			/* we cache maximum MAX_BUF_INFO_CACHED number of
+			buffer page info */
+			num_to_process = ut_min(chunk_size,
+						MAX_BUF_INFO_CACHED);
+
+			mem_size = num_to_process * sizeof(buf_page_info_t);
+
+			/* For each chunk, we'll pre-allocate information
+			structures to cache the page information read from
+			the buffer pool. Doing so before obtain any mutex */
+			info_buffer = (buf_page_info_t*) mem_heap_zalloc(
+				heap, mem_size);
+
+			/* Obtain appropriate mutexes. Since this is diagnostic
+			buffer pool info printout, we are not required to
+			preserve the overall consistency, so we can
+			release mutex periodically */
+			buf_pool_mutex_enter();
+
+			/* GO through each block in the chunk */
+			for (n_blocks = num_to_process; n_blocks--; block++) {
+				block_mutex = buf_page_get_mutex_enter(&block->page);
+				i_s_innodb_buffer_page_get_info(
+					&block->page, block_id,
+					info_buffer + num_page);
+				mutex_exit(block_mutex);
+				block_id++;
+				num_page++;
+			}
+
+			buf_pool_mutex_exit();
+
+			/* Fill in information schema table with information
+			just collected from the buffer chunk scan */
+			status = i_s_innodb_buffer_page_fill(
+				thd, tables, info_buffer,
+				num_page, heap);
+
+			/* If something goes wrong, break and return */
+			if (status) {
+				break;
+			}
+
+			mem_heap_empty(heap);
+			chunk_size -= num_to_process;
+			num_page = 0;
+		}
+	}
+
+	mem_heap_free(heap);
+
+	DBUG_RETURN(status);
+}
+
+/*******************************************************************//**
+Fill page information for pages in InnoDB buffer pool to the
+dynamic table INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buffer_page_fill_table(
+/*==============================*/
+	THD*		thd,		/*!< in: thread */
+	TABLE_LIST*	tables,		/*!< in/out: tables to fill */
+	Item*		)		/*!< in: condition (ignored) */
+{
+	int	status	= 0;
+
+	DBUG_ENTER("i_s_innodb_buffer_page_fill_table");
+
+	/* deny access to user without PROCESS privilege */
+	if (check_global_access(thd, PROCESS_ACL)) {
+		DBUG_RETURN(0);
+	}
+
+	/* Fetch information from pages in this buffer pool,
+	and fill the corresponding I_S table */
+	status = i_s_innodb_fill_buffer_pool(thd, tables);
+
+	DBUG_RETURN(status);
+}
+
+/*******************************************************************//**
+Bind the dynamic table INFORMATION_SCHEMA.INNODB_BUFFER_PAGE.
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buffer_page_init(
+/*========================*/
+	void*	p)	/*!< in/out: table schema object */
+{
+	ST_SCHEMA_TABLE*	schema;
+
+	DBUG_ENTER("i_s_innodb_buffer_page_init");
+
+	schema = reinterpret_cast<ST_SCHEMA_TABLE*>(p);
+
+	schema->fields_info = i_s_innodb_buffer_page_fields_info;
+	schema->fill_table = i_s_innodb_buffer_page_fill_table;
+
+	DBUG_RETURN(0);
+}
+
+UNIV_INTERN struct st_mysql_plugin	i_s_innodb_buffer_page =
+{
+	/* the plugin type (a MYSQL_XXX_PLUGIN value) */
+	/* int */
+	STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
+
+	/* pointer to type-specific plugin descriptor */
+	/* void* */
+	STRUCT_FLD(info, &i_s_info),
+
+	/* plugin name */
+	/* const char* */
+	STRUCT_FLD(name, "INNODB_BUFFER_PAGE"),
+
+	/* plugin author (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(author, plugin_author),
+
+	/* general descriptive text (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(descr, "InnoDB Buffer Page Information"),
+
+	/* the plugin license (PLUGIN_LICENSE_XXX) */
+	/* int */
+	STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
+
+	/* the function to invoke when plugin is loaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(init, i_s_innodb_buffer_page_init),
+
+	/* the function to invoke when plugin is unloaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(deinit, i_s_common_deinit),
+
+	/* plugin version (for SHOW PLUGINS) */
+	/* unsigned int */
+	STRUCT_FLD(version, INNODB_VERSION_SHORT),
+
+	/* struct st_mysql_show_var* */
+	STRUCT_FLD(status_vars, NULL),
+
+	/* struct st_mysql_sys_var** */
+	STRUCT_FLD(system_vars, NULL),
+
+	/* reserved for dependency checking */
+	/* void* */
+	STRUCT_FLD(__reserved1, NULL),
+};
+
+UNIV_INTERN struct st_maria_plugin	i_s_innodb_buffer_page_maria =
+{
+	/* the plugin type (a MYSQL_XXX_PLUGIN value) */
+	/* int */
+	STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
+
+	/* pointer to type-specific plugin descriptor */
+	/* void* */
+	STRUCT_FLD(info, &i_s_info),
+
+	/* plugin name */
+	/* const char* */
+	STRUCT_FLD(name, "INNODB_BUFFER_PAGE"),
+
+	/* plugin author (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(author, plugin_author),
+
+	/* general descriptive text (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(descr, "InnoDB Buffer Page Information"),
+
+	/* the plugin license (PLUGIN_LICENSE_XXX) */
+	/* int */
+	STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
+
+	/* the function to invoke when plugin is loaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(init, i_s_innodb_buffer_page_init),
+
+	/* the function to invoke when plugin is unloaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(deinit, i_s_common_deinit),
+
+	/* plugin version (for SHOW PLUGINS) */
+	/* unsigned int */
+	STRUCT_FLD(version, INNODB_VERSION_SHORT),
+
+	/* struct st_mysql_show_var* */
+	STRUCT_FLD(status_vars, NULL),
+
+	/* struct st_mysql_sys_var** */
+	STRUCT_FLD(system_vars, NULL),
+
+        STRUCT_FLD(version_info, "1.0"),
+        STRUCT_FLD(maturity, MariaDB_PLUGIN_MATURITY_BETA)
+};
+
+static ST_FIELD_INFO	i_s_innodb_buf_page_lru_fields_info[] =
+{
+#define IDX_BUF_LRU_POS			0
+	{STRUCT_FLD(field_name,		"LRU_POSITION"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_SPACE		1
+	{STRUCT_FLD(field_name,		"SPACE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_NUM		2
+	{STRUCT_FLD(field_name,		"PAGE_NUMBER"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_TYPE		3
+	{STRUCT_FLD(field_name,		"PAGE_TYPE"),
+	 STRUCT_FLD(field_length,	64),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_FLUSH_TYPE	4
+	{STRUCT_FLD(field_name,		"FLUSH_TYPE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_FIX_COUNT	5
+	{STRUCT_FLD(field_name,		"FIX_COUNT"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_HASHED		6
+	{STRUCT_FLD(field_name,		"IS_HASHED"),
+	 STRUCT_FLD(field_length,	3),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_NEWEST_MOD	7
+	{STRUCT_FLD(field_name,		"NEWEST_MODIFICATION"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_OLDEST_MOD	8
+	{STRUCT_FLD(field_name,		"OLDEST_MODIFICATION"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_ACCESS_TIME	9
+	{STRUCT_FLD(field_name,		"ACCESS_TIME"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_TABLE_NAME	10
+	{STRUCT_FLD(field_name,		"TABLE_NAME"),
+	 STRUCT_FLD(field_length,	1024),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_INDEX_NAME	11
+	{STRUCT_FLD(field_name,		"INDEX_NAME"),
+	 STRUCT_FLD(field_length,	1024),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_NUM_RECS	12
+	{STRUCT_FLD(field_name,		"NUMBER_RECORDS"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_DATA_SIZE	13
+	{STRUCT_FLD(field_name,		"DATA_SIZE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_ZIP_SIZE	14
+	{STRUCT_FLD(field_name,		"COMPRESSED_SIZE"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_STATE		15
+	{STRUCT_FLD(field_name,		"COMPRESSED"),
+	 STRUCT_FLD(field_length,	3),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_IO_FIX		16
+	{STRUCT_FLD(field_name,		"IO_FIX"),
+	 STRUCT_FLD(field_length,	64),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_IS_OLD		17
+	{STRUCT_FLD(field_name,		"IS_OLD"),
+	 STRUCT_FLD(field_length,	3),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_STRING),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_MAYBE_NULL),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+#define IDX_BUF_LRU_PAGE_FREE_CLOCK	18
+	{STRUCT_FLD(field_name,		"FREE_PAGE_CLOCK"),
+	 STRUCT_FLD(field_length,	MY_INT64_NUM_DECIMAL_DIGITS),
+	 STRUCT_FLD(field_type,		MYSQL_TYPE_LONGLONG),
+	 STRUCT_FLD(value,		0),
+	 STRUCT_FLD(field_flags,	MY_I_S_UNSIGNED),
+	 STRUCT_FLD(old_name,		""),
+	 STRUCT_FLD(open_method,	SKIP_OPEN_TABLE)},
+
+	END_OF_ST_FIELD_INFO
+};
+
+/*******************************************************************//**
+Fill Information Schema table INNODB_BUFFER_PAGE_LRU with information
+cached in the buf_page_info_t array
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buf_page_lru_fill(
+/*=========================*/
+	THD*			thd,		/*!< in: thread */
+	TABLE_LIST*		tables,		/*!< in/out: tables to fill */
+	const buf_page_info_t*	info_array,	/*!< in: array cached page
+						info */
+	ulint			num_page)	/*!< in: number of page info
+						 cached */
+{
+	TABLE*			table;
+	Field**			fields;
+	mem_heap_t*		heap;
+
+	DBUG_ENTER("i_s_innodb_buf_page_lru_fill");
+
+	table = tables->table;
+
+	fields = table->field;
+
+	heap = mem_heap_create(1000);
+
+	/* Iterate through the cached array and fill the I_S table rows */
+	for (ulint i = 0; i < num_page; i++) {
+		const buf_page_info_t*	page_info;
+		const char*		table_name;
+		const char*		index_name;
+		const char*		state_str;
+		enum buf_page_state	state;
+
+		table_name = NULL;
+		index_name = NULL;
+		state_str = NULL;
+
+		page_info = info_array + i;
+
+		OK(fields[IDX_BUF_LRU_POS]->store(page_info->block_id));
+
+		OK(fields[IDX_BUF_LRU_PAGE_SPACE]->store(page_info->space_id));
+
+		OK(fields[IDX_BUF_LRU_PAGE_NUM]->store(page_info->page_num));
+
+		OK(field_store_string(
+			fields[IDX_BUF_LRU_PAGE_TYPE],
+			i_s_page_type[page_info->page_type].type_str));
+
+		OK(fields[IDX_BUF_LRU_PAGE_FLUSH_TYPE]->store(
+			page_info->flush_type));
+
+		OK(fields[IDX_BUF_LRU_PAGE_FIX_COUNT]->store(
+			page_info->fix_count));
+
+		if (page_info->hashed) {
+			OK(field_store_string(
+				fields[IDX_BUF_LRU_PAGE_HASHED], "YES"));
+		} else {
+			OK(field_store_string(
+				fields[IDX_BUF_LRU_PAGE_HASHED], "NO"));
+		}
+
+		OK(fields[IDX_BUF_LRU_PAGE_NEWEST_MOD]->store(
+			page_info->newest_mod, true));
+
+		OK(fields[IDX_BUF_LRU_PAGE_OLDEST_MOD]->store(
+			page_info->oldest_mod, true));
+
+		OK(fields[IDX_BUF_LRU_PAGE_ACCESS_TIME]->store(
+			page_info->access_time));
+
+		/* If this is an index page, fetch the index name
+		and table name */
+		if (page_info->page_type == I_S_PAGE_TYPE_INDEX) {
+			const dict_index_t*	index;
+
+			mutex_enter(&dict_sys->mutex);
+			index = dict_index_get_if_in_cache_low(
+				page_info->index_id);
+
+			/* Copy the index/table name under mutex. We
+			do not want to hold the InnoDB mutex while
+			filling the IS table */
+			if (index) {
+				const char*	name_ptr = index->name;
+
+				if (name_ptr[0] == TEMP_INDEX_PREFIX) {
+					name_ptr++;
+				}
+
+				index_name = mem_heap_strdup(heap, name_ptr);
+
+				table_name = mem_heap_strdup(heap,
+							     index->table_name);
+			}
+
+			mutex_exit(&dict_sys->mutex);
+		}
+
+		OK(field_store_string(
+			fields[IDX_BUF_LRU_PAGE_TABLE_NAME], table_name));
+
+		OK(field_store_string(
+			fields[IDX_BUF_LRU_PAGE_INDEX_NAME], index_name));
+		OK(fields[IDX_BUF_LRU_PAGE_NUM_RECS]->store(
+			page_info->num_recs));
+
+		OK(fields[IDX_BUF_LRU_PAGE_DATA_SIZE]->store(
+			page_info->data_size));
+
+		OK(fields[IDX_BUF_LRU_PAGE_ZIP_SIZE]->store(
+			page_info->zip_ssize ?
+				 512 << page_info->zip_ssize : 0));
+
+		state = static_cast<enum buf_page_state>(page_info->page_state);
+
+		switch (state) {
+		/* Compressed page */
+		case BUF_BLOCK_ZIP_PAGE:
+		case BUF_BLOCK_ZIP_DIRTY:
+			state_str = "YES";
+			break;
+		/* Uncompressed page */
+		case BUF_BLOCK_FILE_PAGE:
+			state_str = "NO";
+			break;
+		/* We should not see following states */
+		case BUF_BLOCK_ZIP_FREE:
+		case BUF_BLOCK_READY_FOR_USE:
+		case BUF_BLOCK_NOT_USED:
+		case BUF_BLOCK_MEMORY:
+		case BUF_BLOCK_REMOVE_HASH:
+			state_str = NULL;
+			break;
+		};
+
+		OK(field_store_string(fields[IDX_BUF_LRU_PAGE_STATE],
+				      state_str));
+
+		switch (page_info->io_fix) {
+		case BUF_IO_NONE:
+			OK(field_store_string(fields[IDX_BUF_LRU_PAGE_IO_FIX],
+					      "IO_NONE"));
+			break;
+		case BUF_IO_READ:
+			OK(field_store_string(fields[IDX_BUF_LRU_PAGE_IO_FIX],
+					      "IO_READ"));
+			break;
+		case BUF_IO_WRITE:
+			OK(field_store_string(fields[IDX_BUF_LRU_PAGE_IO_FIX],
+					      "IO_WRITE"));
+			break;
+		}
+
+		OK(field_store_string(fields[IDX_BUF_LRU_PAGE_IS_OLD],
+				      (page_info->is_old) ? "YES" : "NO"));
+
+		OK(fields[IDX_BUF_LRU_PAGE_FREE_CLOCK]->store(
+			page_info->freed_page_clock));
+
+		if (schema_table_store_record(thd, table)) {
+			mem_heap_free(heap);
+			DBUG_RETURN(1);
+		}
+
+		mem_heap_empty(heap);
+	}
+
+	mem_heap_free(heap);
+
+	DBUG_RETURN(0);
+}
+
+/*******************************************************************//**
+This is the function that goes through buffer pool's LRU list
+and fetch information to INFORMATION_SCHEMA.INNODB_BUFFER_PAGE_LRU.
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_fill_buffer_lru(
+/*=======================*/
+	THD*			thd,		/*!< in: thread */
+	TABLE_LIST*		tables)		/*!< in/out: tables to fill */
+{
+	int			status = 0;
+	buf_page_info_t*	info_buffer;
+	ulint			lru_pos = 0;
+	const buf_page_t*	bpage;
+	ulint			lru_len;
+	mutex_t*		block_mutex;
+
+	DBUG_ENTER("i_s_innodb_fill_buffer_lru");
+
+	/* Obtain buf_pool mutex before allocate info_buffer, since
+	UT_LIST_GET_LEN(buf_pool->LRU) could change */
+	mutex_enter(&LRU_list_mutex);
+
+	lru_len = UT_LIST_GET_LEN(buf_pool->LRU);
+
+	/* Print error message if malloc fail */
+	info_buffer = (buf_page_info_t*) my_malloc(
+		lru_len * sizeof *info_buffer, MYF(MY_WME));
+
+	if (!info_buffer) {
+		status = 1;
+		goto exit;
+	}
+
+	memset(info_buffer, 0, lru_len * sizeof *info_buffer);
+
+	/* Walk through Pool's LRU list and print the buffer page
+	information */
+	bpage = UT_LIST_GET_LAST(buf_pool->LRU);
+
+	while (bpage != NULL) {
+		block_mutex = buf_page_get_mutex_enter(bpage);
+		/* Use the same function that collect buffer info for
+		INNODB_BUFFER_PAGE to get buffer page info */
+		i_s_innodb_buffer_page_get_info(bpage, lru_pos,
+						(info_buffer + lru_pos));
+
+		bpage = UT_LIST_GET_PREV(LRU, bpage);
+		mutex_exit(block_mutex);
+
+		lru_pos++;
+	}
+
+	ut_ad(lru_pos == lru_len);
+	ut_ad(lru_pos == UT_LIST_GET_LEN(buf_pool->LRU));
+
+exit:
+	mutex_exit(&LRU_list_mutex);
+
+	if (info_buffer) {
+		status = i_s_innodb_buf_page_lru_fill(
+			thd, tables, info_buffer, lru_len);
+
+		my_free(info_buffer, MYF(MY_ALLOW_ZERO_PTR));
+	}
+
+	DBUG_RETURN(status);
+}
+
+/*******************************************************************//**
+Fill page information for pages in InnoDB buffer pool to the
+dynamic table INFORMATION_SCHEMA.INNODB_BUFFER_PAGE_LRU
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buf_page_lru_fill_table(
+/*===============================*/
+	THD*		thd,		/*!< in: thread */
+	TABLE_LIST*	tables,		/*!< in/out: tables to fill */
+	Item*		)		/*!< in: condition (ignored) */
+{
+	int	status	= 0;
+
+	DBUG_ENTER("i_s_innodb_buf_page_lru_fill_table");
+
+	/* deny access to any users that do not hold PROCESS_ACL */
+	if (check_global_access(thd, PROCESS_ACL)) {
+		DBUG_RETURN(0);
+	}
+
+	/* Fetch information from pages in this buffer pool's LRU list,
+	and fill the corresponding I_S table */
+	status = i_s_innodb_fill_buffer_lru(thd, tables);
+
+	DBUG_RETURN(status);
+}
+
+/*******************************************************************//**
+Bind the dynamic table INFORMATION_SCHEMA.INNODB_BUFFER_PAGE_LRU.
+@return	0 on success, 1 on failure */
+static
+int
+i_s_innodb_buffer_page_lru_init(
+/*============================*/
+	void*	p)	/*!< in/out: table schema object */
+{
+	ST_SCHEMA_TABLE*	schema;
+
+	DBUG_ENTER("i_s_innodb_buffer_page_lru_init");
+
+	schema = reinterpret_cast<ST_SCHEMA_TABLE*>(p);
+
+	schema->fields_info = i_s_innodb_buf_page_lru_fields_info;
+	schema->fill_table = i_s_innodb_buf_page_lru_fill_table;
+
+	DBUG_RETURN(0);
+}
+
+UNIV_INTERN struct st_mysql_plugin	i_s_innodb_buffer_page_lru =
+{
+	/* the plugin type (a MYSQL_XXX_PLUGIN value) */
+	/* int */
+	STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
+
+	/* pointer to type-specific plugin descriptor */
+	/* void* */
+	STRUCT_FLD(info, &i_s_info),
+
+	/* plugin name */
+	/* const char* */
+	STRUCT_FLD(name, "INNODB_BUFFER_PAGE_LRU"),
+
+	/* plugin author (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(author, plugin_author),
+
+	/* general descriptive text (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(descr, "InnoDB Buffer Page in LRU"),
+
+	/* the plugin license (PLUGIN_LICENSE_XXX) */
+	/* int */
+	STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
+
+	/* the function to invoke when plugin is loaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(init, i_s_innodb_buffer_page_lru_init),
+
+	/* the function to invoke when plugin is unloaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(deinit, i_s_common_deinit),
+
+	/* plugin version (for SHOW PLUGINS) */
+	/* unsigned int */
+	STRUCT_FLD(version, INNODB_VERSION_SHORT),
+
+	/* struct st_mysql_show_var* */
+	STRUCT_FLD(status_vars, NULL),
+
+	/* struct st_mysql_sys_var** */
+	STRUCT_FLD(system_vars, NULL),
+
+	/* reserved for dependency checking */
+	/* void* */
+	STRUCT_FLD(__reserved1, NULL)
+};
+
+UNIV_INTERN struct st_maria_plugin	i_s_innodb_buffer_page_lru_maria =
+{
+	/* the plugin type (a MYSQL_XXX_PLUGIN value) */
+	/* int */
+	STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
+
+	/* pointer to type-specific plugin descriptor */
+	/* void* */
+	STRUCT_FLD(info, &i_s_info),
+
+	/* plugin name */
+	/* const char* */
+	STRUCT_FLD(name, "INNODB_BUFFER_PAGE_LRU"),
+
+	/* plugin author (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(author, plugin_author),
+
+	/* general descriptive text (for SHOW PLUGINS) */
+	/* const char* */
+	STRUCT_FLD(descr, "InnoDB Buffer Page in LRU"),
+
+	/* the plugin license (PLUGIN_LICENSE_XXX) */
+	/* int */
+	STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
+
+	/* the function to invoke when plugin is loaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(init, i_s_innodb_buffer_page_lru_init),
+
+	/* the function to invoke when plugin is unloaded */
+	/* int (*)(void*); */
+	STRUCT_FLD(deinit, i_s_common_deinit),
+
+	/* plugin version (for SHOW PLUGINS) */
+	/* unsigned int */
+	STRUCT_FLD(version, INNODB_VERSION_SHORT),
+
+	/* struct st_mysql_show_var* */
+	STRUCT_FLD(status_vars, NULL),
+
+	/* struct st_mysql_sys_var** */
+	STRUCT_FLD(system_vars, NULL),
+
+        STRUCT_FLD(version_info, "1.0"),
+        STRUCT_FLD(maturity, MariaDB_PLUGIN_MATURITY_BETA)
+};
diff --git a/storage/xtradb/handler/i_s.h b/storage/xtradb/handler/i_s.h
index 7a5c3ead5ed..673d0fdbc16 100644
--- a/storage/xtradb/handler/i_s.h
+++ b/storage/xtradb/handler/i_s.h
@@ -36,7 +36,6 @@ extern struct st_mysql_plugin	i_s_innodb_cmp;
 extern struct st_mysql_plugin	i_s_innodb_cmp_reset;
 extern struct st_mysql_plugin	i_s_innodb_cmpmem;
 extern struct st_mysql_plugin	i_s_innodb_cmpmem_reset;
-extern struct st_mysql_plugin	i_s_innodb_patches;
 extern struct st_mysql_plugin	i_s_innodb_rseg;
 extern struct st_mysql_plugin	i_s_innodb_table_stats;
 extern struct st_mysql_plugin	i_s_innodb_index_stats;
@@ -44,6 +43,10 @@ extern struct st_mysql_plugin	i_s_innodb_admin_command;
 extern struct st_mysql_plugin   i_s_innodb_sys_tables;
 extern struct st_mysql_plugin   i_s_innodb_sys_indexes;
 extern struct st_mysql_plugin	i_s_innodb_sys_stats;
+extern struct st_mysql_plugin	i_s_innodb_changed_pages;
+extern struct st_mysql_plugin	i_s_innodb_buffer_page;
+extern struct st_mysql_plugin	i_s_innodb_buffer_page_lru;
+extern struct st_mysql_plugin	i_s_innodb_buffer_stats;
 
 extern struct st_maria_plugin i_s_innodb_buffer_pool_pages_maria;
 extern struct st_maria_plugin i_s_innodb_buffer_pool_pages_index_maria;
@@ -55,7 +58,6 @@ extern struct st_maria_plugin i_s_innodb_cmp_maria;
 extern struct st_maria_plugin i_s_innodb_cmp_reset_maria;
 extern struct st_maria_plugin i_s_innodb_cmpmem_maria;
 extern struct st_maria_plugin i_s_innodb_cmpmem_reset_maria;
-extern struct st_maria_plugin i_s_innodb_patches_maria;
 extern struct st_maria_plugin i_s_innodb_rseg_maria;
 extern struct st_maria_plugin i_s_innodb_table_stats_maria;
 extern struct st_maria_plugin i_s_innodb_index_stats_maria;
@@ -63,5 +65,9 @@ extern struct st_maria_plugin i_s_innodb_admin_command_maria;
 extern struct st_maria_plugin i_s_innodb_sys_tables_maria;
 extern struct st_maria_plugin i_s_innodb_sys_indexes_maria;
 extern struct st_maria_plugin i_s_innodb_sys_stats_maria;
+extern struct st_maria_plugin i_s_innodb_changed_pages_maria;
+extern struct st_maria_plugin i_s_innodb_buffer_page_maria;
+extern struct st_maria_plugin i_s_innodb_buffer_page_lru_maria;
+extern struct st_maria_plugin i_s_innodb_buffer_stats_maria;
 
 #endif /* i_s_h */
diff --git a/storage/xtradb/handler/innodb_patch_info.h b/storage/xtradb/handler/innodb_patch_info.h
deleted file mode 100644
index 38b97411340..00000000000
--- a/storage/xtradb/handler/innodb_patch_info.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/* Copyright (C) 2002-2006 MySQL AB
-  
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; version 2 of the License.
-  
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
-
-#ifdef USE_PRAGMA_INTERFACE
-#pragma interface                      /* gcc class implementation */
-#endif
-
-struct innodb_enhancement {
-       const char *file;
-       const char *name;
-       const char *comment;
-       const char *link;
-}innodb_enhancements[] = {
-{"xtradb_show_enhancements","I_S.XTRADB_ENHANCEMENTS","","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_show_status","Improvements to SHOW INNODB STATUS","Memory information and lock info fixes","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_io","Improvements to InnoDB IO","","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_opt_lru_count","Fix of buffer_pool mutex","Decreases contention on buffer_pool mutex on LRU operations","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_buffer_pool_pages","Information of buffer pool content","","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_expand_undo_slots","expandable maximum number of undo slots","from 1024 (default) to about 4000","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_extra_rseg","allow to create extra rollback segments","When create new db, the new parameter allows to create more rollback segments","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_overwrite_relay_log_info","overwrite relay-log.info when slave recovery","Building as plugin, it is not used.","http://www.percona.com/docs/wiki/percona-xtradb:innodb_overwrite_relay_log_info"},
-{"innodb_thread_concurrency_timer_based","use InnoDB timer based concurrency throttling (backport from MySQL 5.4.0)","",""},
-{"innodb_expand_import","convert .ibd file automatically when import tablespace","the files are generated by xtrabackup export mode.","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_dict_size_limit","Limit dictionary cache size","Variable innodb_dict_size_limit in bytes","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_split_buf_pool_mutex","More fix of buffer_pool mutex","Spliting buf_pool_mutex and optimizing based on innodb_opt_lru_count","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_stats","Additional features about InnoDB statistics/optimizer","","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_recovery_patches","Bugfixes and adjustments about recovery process","","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_purge_thread","Enable to use purge devoted thread","","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_admin_command_base","XtraDB specific command interface through i_s","","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_show_lock_name","Show mutex/lock name instead of crated file/line","","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_extend_slow","Extended statistics in slow.log","It is InnoDB-part only. It needs to patch also to mysqld.","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_lru_dump_restore","Dump and restore command for content of buffer pool","","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_separate_doublewrite","Add option 'innodb_doublewrite_file' to separate doublewrite dedicated tablespace","","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_pass_corrupt_table","Treat tables as corrupt instead of crash, when meet corrupt blocks","","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_fast_checksum","Using the checksum on 32bit-unit calculation","incompatible for unpatched ver.","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_files_extend","allow >4GB transaction log files, and can vary universal page size of datafiles","incompatible for unpatched ver.","http://www.percona.com/docs/wiki/percona-xtradb"},
-{"innodb_sys_tables_sys_indexes","Expose InnoDB SYS_TABLES and SYS_INDEXES schema tables","","http://www.percona.com/docs/wiki/percona-xtradb"},
-{NULL, NULL, NULL, NULL}
-};
diff --git a/storage/xtradb/ibuf/ibuf0ibuf.c b/storage/xtradb/ibuf/ibuf0ibuf.c
index ee9b85fa38c..e47794d2db1 100644
--- a/storage/xtradb/ibuf/ibuf0ibuf.c
+++ b/storage/xtradb/ibuf/ibuf0ibuf.c
@@ -2759,11 +2759,19 @@ ibuf_insert_low(
 
 		root = ibuf_tree_root_get(&mtr);
 
-		err = btr_cur_pessimistic_insert(BTR_NO_LOCKING_FLAG
-						 | BTR_NO_UNDO_LOG_FLAG,
-						 cursor,
-						 ibuf_entry, &ins_rec,
-						 &dummy_big_rec, 0, thr, &mtr);
+		err = btr_cur_optimistic_insert(
+			BTR_NO_LOCKING_FLAG | BTR_NO_UNDO_LOG_FLAG,
+			cursor, ibuf_entry, &ins_rec,
+			&dummy_big_rec, 0, thr, &mtr);
+
+		if (err == DB_FAIL) {
+			err = btr_cur_pessimistic_insert(
+				BTR_NO_LOCKING_FLAG
+				| BTR_NO_UNDO_LOG_FLAG,
+				cursor, ibuf_entry, &ins_rec,
+				&dummy_big_rec, 0, thr, &mtr);
+		}
+
 		if (err == DB_SUCCESS) {
 			/* Update the page max trx id field */
 			page_update_max_trx_id(btr_cur_get_block(cursor), NULL,
diff --git a/storage/xtradb/include/buf0buf.h b/storage/xtradb/include/buf0buf.h
index e3039fe520c..6566f8fa9e4 100644
--- a/storage/xtradb/include/buf0buf.h
+++ b/storage/xtradb/include/buf0buf.h
@@ -103,6 +103,81 @@ enum buf_page_state {
 					before putting to the free list */
 };
 
+/** This structure defines information we will fetch from each buffer pool. It
+will be used to print table IO stats */
+struct buf_pool_info_struct{
+	/* General buffer pool info */
+	ulint	pool_size;		/*!< Buffer Pool size in pages */
+	ulint	lru_len;		/*!< Length of buf_pool->LRU */
+	ulint	old_lru_len;		/*!< buf_pool->LRU_old_len */
+	ulint	free_list_len;		/*!< Length of buf_pool->free list */
+	ulint	flush_list_len;		/*!< Length of buf_pool->flush_list */
+	ulint	n_pend_unzip;		/*!< buf_pool->n_pend_unzip, pages
+					pending decompress */
+	ulint	n_pend_reads;		/*!< buf_pool->n_pend_reads, pages
+					pending read */
+	ulint	n_pending_flush_lru;	/*!< Pages pending flush in LRU */
+	ulint	n_pending_flush_single_page;/*!< Pages pending to be
+					flushed as part of single page
+					flushes issued by various user
+					threads */
+	ulint	n_pending_flush_list;	/*!< Pages pending flush in FLUSH
+					LIST */
+	ulint	n_pages_made_young;	/*!< number of pages made young */
+	ulint	n_pages_not_made_young;	/*!< number of pages not made young */
+	ulint	n_pages_read;		/*!< buf_pool->n_pages_read */
+	ulint	n_pages_created;	/*!< buf_pool->n_pages_created */
+	ulint	n_pages_written;	/*!< buf_pool->n_pages_written */
+	ulint	n_page_gets;		/*!< buf_pool->n_page_gets */
+	ulint	n_ra_pages_read_rnd;	/*!< buf_pool->n_ra_pages_read_rnd,
+					number of pages readahead */
+	ulint	n_ra_pages_read;	/*!< buf_pool->n_ra_pages_read, number
+					of pages readahead */
+	ulint	n_ra_pages_evicted;	/*!< buf_pool->n_ra_pages_evicted,
+					number of readahead pages evicted
+					without access */
+	ulint	n_page_get_delta;	/*!< num of buffer pool page gets since
+					last printout */
+
+	/* Buffer pool access stats */
+	double	page_made_young_rate;	/*!< page made young rate in pages
+					per second */
+	double	page_not_made_young_rate;/*!< page not made young rate
+					in pages per second */
+	double	pages_read_rate;	/*!< num of pages read per second */
+	double	pages_created_rate;	/*!< num of pages create per second */
+	double	pages_written_rate;	/*!< num of  pages written per second */
+	ulint	page_read_delta;	/*!< num of pages read since last
+					printout */
+	ulint	young_making_delta;	/*!< num of pages made young since
+					last printout */
+	ulint	not_young_making_delta;	/*!< num of pages not make young since
+					last printout */
+
+	/* Statistics about read ahead algorithm.  */
+	double	pages_readahead_rnd_rate;/*!< random readahead rate in pages per
+					second */
+	double	pages_readahead_rate;	/*!< readahead rate in pages per
+					second */
+	double	pages_evicted_rate;	/*!< rate of readahead page evicted
+					without access, in pages per second */
+
+	/* Stats about LRU eviction */
+	ulint	unzip_lru_len;		/*!< length of buf_pool->unzip_LRU
+					list */
+	/* Counters for LRU policy */
+	ulint	io_sum;			/*!< buf_LRU_stat_sum.io */
+	ulint	io_cur;			/*!< buf_LRU_stat_cur.io, num of IO
+					for current interval */
+	ulint	unzip_sum;		/*!< buf_LRU_stat_sum.unzip */
+	ulint	unzip_cur;		/*!< buf_LRU_stat_cur.unzip, num
+					pages decompressed in current
+					interval */
+};
+
+typedef struct buf_pool_info_struct	buf_pool_info_t;
+
+
 #ifndef UNIV_HOTBACKUP
 /********************************************************************//**
 Creates the buffer pool.
@@ -623,6 +698,16 @@ void
 buf_print_io(
 /*=========*/
 	FILE*	file);	/*!< in: file where to print */
+/*******************************************************************//**
+Collect buffer pool stats information for a buffer pool. Also
+record aggregated stats if there are more than one buffer pool
+in the server */
+UNIV_INTERN
+void
+buf_stats_get_pool_info(
+/*====================*/
+	buf_pool_info_t*        pool_info); /*!< in/out: buffer pool info
+                                                to fill */
 /*********************************************************************//**
 Returns the ratio in percents of modified pages in the buffer pool /
 database pages in the buffer pool.
@@ -1051,12 +1136,27 @@ UNIV_INTERN
 ulint
 buf_get_free_list_len(void);
 /*=======================*/
+
+/*********************************************************************//**
+Get the nth chunk's buffer block in the specified buffer pool.
+@return the nth chunk's buffer block. */
+UNIV_INLINE
+buf_block_t*
+buf_get_nth_chunk_block(
+/*====================*/
+	const buf_pool_t* buf_pool,     /*!< in: buffer pool instance */
+	ulint           n,              /*!< in: nth chunk in the buffer pool */
+	ulint*          chunk_size);    /*!< in: chunk size */
+
 #endif /* !UNIV_HOTBACKUP */
 
 
 /** The common buffer control block structure
 for compressed and uncompressed frames */
 
+/** Number of bits used for buffer page states. */
+#define BUF_PAGE_STATE_BITS     3
+
 struct buf_page_struct{
 	/** @name General fields
 	None of these bit-fields must be modified without holding
@@ -1071,7 +1171,8 @@ struct buf_page_struct{
 	unsigned	offset:32;	/*!< page number; also protected
 					by buf_pool_mutex. */
 
-	unsigned	state:3;	/*!< state of the control block; also
+	unsigned	state:BUF_PAGE_STATE_BITS;
+					/*!< state of the control block; also
 					protected by buf_pool_mutex.
 					State transitions from
 					BUF_BLOCK_READY_FOR_USE to
diff --git a/storage/xtradb/include/buf0buf.ic b/storage/xtradb/include/buf0buf.ic
index 92e0edf0444..8dae4b6f4c6 100644
--- a/storage/xtradb/include/buf0buf.ic
+++ b/storage/xtradb/include/buf0buf.ic
@@ -36,6 +36,7 @@ Created 11/5/1995 Heikki Tuuri
 #include "buf0lru.h"
 #include "buf0rea.h"
 #include "srv0srv.h"
+
 /********************************************************************//**
 Reads the freed_page_clock of a buffer block.
 @return	freed_page_clock */
@@ -1154,4 +1155,23 @@ buf_block_dbg_add_level(
 	sync_thread_add_level(&block->lock, level, FALSE);
 }
 #endif /* UNIV_SYNC_DEBUG */
+
+/*********************************************************************//**
+Get the nth chunk's buffer block in the specified buffer pool.
+@return the nth chunk's buffer block. */
+UNIV_INLINE
+buf_block_t*
+buf_get_nth_chunk_block(
+/*====================*/
+        const buf_pool_t* buf_pool,     /*!< in: buffer pool instance */
+        ulint           n,              /*!< in: nth chunk in the buffer pool */
+        ulint*          chunk_size)     /*!< in: chunk size */
+{
+        const buf_chunk_t*      chunk;
+
+        chunk = buf_pool->chunks + n;
+        *chunk_size = chunk->size;
+        return(chunk->blocks);
+}
 #endif /* !UNIV_HOTBACKUP */
+
diff --git a/storage/xtradb/include/buf0lru.h b/storage/xtradb/include/buf0lru.h
index 8abebfb675c..dfce4f6a117 100644
--- a/storage/xtradb/include/buf0lru.h
+++ b/storage/xtradb/include/buf0lru.h
@@ -93,13 +93,12 @@ buf_LRU_insert_zip_clean(
 Try to free a block.  If bpage is a descriptor of a compressed-only
 page, the descriptor object will be freed as well.
 
-NOTE: If this function returns TRUE, it will temporarily
-release buf_pool_mutex.  Furthermore, the page frame will no longer be
-accessible via bpage.
+NOTE: This will temporarily release buf_pool_mutex.  Furthermore, the
+page frame will no longer be accessible via bpage.
 
-The caller must hold buf_pool_mutex and buf_page_get_mutex(bpage) and
-release these two mutexes after the call.  No other
-buf_page_get_mutex() may be held when calling this function.
+The caller must hold buf_page_get_mutex(bpage) and release this mutex
+after the call.  No other buf_page_get_mutex() may be held when
+calling this function.
 @return TRUE if freed, FALSE otherwise. */
 UNIV_INTERN
 ibool
diff --git a/storage/xtradb/include/dict0boot.h b/storage/xtradb/include/dict0boot.h
index a57c5127323..c1ed6ba4f2a 100644
--- a/storage/xtradb/include/dict0boot.h
+++ b/storage/xtradb/include/dict0boot.h
@@ -91,6 +91,26 @@ void
 dict_create(void);
 /*=============*/
 
+/*****************************************************************//**
+Verifies the SYS_STATS table by scanning its clustered index.  This
+function may only be called at InnoDB startup time.
+
+@return	TRUE if SYS_STATS was verified successfully */
+UNIV_INTERN
+ibool
+dict_verify_xtradb_sys_stats(void);
+/*==============================*/
+
+/*****************************************************************//**
+Discard the existing dictionary cache SYS_STATS information, create and
+add it there anew.  Does not touch the old SYS_STATS tablespace page
+under the assumption that they are corrupted or overwritten for other
+purposes. */
+UNIV_INTERN
+void
+dict_recreate_xtradb_sys_stats(void);
+/*================================*/
+
 
 /* Space id and page no where the dictionary header resides */
 #define	DICT_HDR_SPACE		0	/* the SYSTEM tablespace */
diff --git a/storage/xtradb/include/fil0fil.h b/storage/xtradb/include/fil0fil.h
index d3300b6b8aa..656a534a0c1 100644
--- a/storage/xtradb/include/fil0fil.h
+++ b/storage/xtradb/include/fil0fil.h
@@ -142,6 +142,8 @@ extern fil_addr_t	fil_addr_null;
 #define FIL_PAGE_TYPE_BLOB	10	/*!< Uncompressed BLOB page */
 #define FIL_PAGE_TYPE_ZBLOB	11	/*!< First compressed BLOB page */
 #define FIL_PAGE_TYPE_ZBLOB2	12	/*!< Subsequent compressed BLOB page */
+#define FIL_PAGE_TYPE_LAST	FIL_PAGE_TYPE_ZBLOB2
+					/*!< Last page type */
 /* @} */
 
 /** Space types @{ */
diff --git a/storage/xtradb/include/log0log.h b/storage/xtradb/include/log0log.h
index 152d83a191f..4ead88458a4 100644
--- a/storage/xtradb/include/log0log.h
+++ b/storage/xtradb/include/log0log.h
@@ -41,6 +41,9 @@ Created 12/9/1995 Heikki Tuuri
 #include "sync0rw.h"
 #endif /* !UNIV_HOTBACKUP */
 
+/* Type used for all log sequence number storage and arithmetics */
+typedef ib_uint64_t		lsn_t;
+
 /** Redo log buffer */
 typedef struct log_struct	log_t;
 /** Redo log group */
@@ -953,6 +956,11 @@ struct log_struct{
 					become signaled */
 	/* @} */
 #endif /* UNIV_LOG_ARCHIVE */
+	ib_uint64_t	tracked_lsn;	/*!< log tracking has advanced to this
+					lsn.  Field accessed atomically where
+					64-bit atomic ops are supported,
+					protected by the log sys mutex
+					otherwise. */
 };
 
 #ifdef UNIV_LOG_ARCHIVE
diff --git a/storage/xtradb/include/log0online.h b/storage/xtradb/include/log0online.h
new file mode 100644
index 00000000000..0e0ca169f6f
--- /dev/null
+++ b/storage/xtradb/include/log0online.h
@@ -0,0 +1,111 @@
+/*****************************************************************************
+
+Copyright (c) 2011-2012, Percona Inc. All Rights Reserved.
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; version 2 of the License.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA
+
+*****************************************************************************/
+
+/**************************************************//**
+@file include/log0online.h
+Online database log parsing for changed page tracking
+*******************************************************/
+
+#ifndef log0online_h
+#define log0online_h
+
+#include "univ.i"
+#include "os0file.h"
+
+/*********************************************************************//**
+Initializes the online log following subsytem. */
+UNIV_INTERN
+void
+log_online_read_init();
+/*===================*/
+
+/*********************************************************************//**
+Shuts down the online log following subsystem. */
+UNIV_INTERN
+void
+log_online_read_shutdown();
+/*=======================*/
+
+/*********************************************************************//**
+Reads and parses the redo log up to last checkpoint LSN to build the changed
+page bitmap which is then written to disk.  */
+UNIV_INTERN
+void
+log_online_follow_redo_log();
+/*=========================*/
+
+/** The iterator through all bits of changed pages bitmap blocks */
+struct log_bitmap_iterator_struct
+{
+	char		in_name[FN_REFLEN]; /*!< the file name for bitmap
+					    input */
+	os_file_t	in;                 /*!< the bitmap input file */
+	ib_uint64_t	in_offset;          /*!< the next write position in the
+					    bitmap output file */
+	ib_uint32_t	bit_offset;         /*!< bit offset inside of bitmap
+					    block*/
+	ib_uint64_t	start_lsn;          /*!< Start lsn of the block */
+	ib_uint64_t	end_lsn;            /*!< End lsn of the block */
+	ib_uint32_t	space_id;           /*!< Block space id */
+	ib_uint32_t	first_page_id;      /*!< First block page id */
+	ibool		changed;            /*!< true if current page was changed */
+	byte*		page;               /*!< Bitmap block */
+};
+
+typedef struct log_bitmap_iterator_struct log_bitmap_iterator_t;
+
+#define LOG_BITMAP_ITERATOR_START_LSN(i) \
+        ((i).start_lsn)
+#define LOG_BITMAP_ITERATOR_END_LSN(i) \
+        ((i).end_lsn)
+#define LOG_BITMAP_ITERATOR_SPACE_ID(i) \
+        ((i).space_id)
+#define LOG_BITMAP_ITERATOR_PAGE_NUM(i) \
+        ((i).first_page_id + (i).bit_offset)
+#define LOG_BITMAP_ITERATOR_PAGE_CHANGED(i) \
+        ((i).changed)
+
+/*********************************************************************//**
+Initializes log bitmap iterator.
+@return TRUE if the iterator is initialized OK, FALSE otherwise. */
+UNIV_INTERN
+ibool
+log_online_bitmap_iterator_init(
+/*============================*/
+	log_bitmap_iterator_t *i); /*!<in/out:  iterator */
+
+/*********************************************************************//**
+Releases log bitmap iterator. */
+UNIV_INTERN
+void
+log_online_bitmap_iterator_release(
+/*===============================*/
+	log_bitmap_iterator_t *i); /*!<in/out:  iterator */
+
+/*********************************************************************//**
+Iterates through bits of saved bitmap blocks.
+Sequentially reads blocks from bitmap file(s) and interates through
+their bits. Ignores blocks with wrong checksum.
+@return TRUE if iteration is successful, FALSE if all bits are iterated. */
+UNIV_INTERN
+ibool
+log_online_bitmap_iterator_next(
+/*============================*/
+	log_bitmap_iterator_t *i); /*!<in/out: iterator */
+
+#endif
diff --git a/storage/xtradb/include/log0recv.h b/storage/xtradb/include/log0recv.h
index 15065267250..fdffd86e4c4 100644
--- a/storage/xtradb/include/log0recv.h
+++ b/storage/xtradb/include/log0recv.h
@@ -32,6 +32,28 @@ Created 9/20/1997 Heikki Tuuri
 #include "hash0hash.h"
 #include "log0log.h"
 
+/******************************************************//**
+Checks the 4-byte checksum to the trailer checksum field of a log
+block.  We also accept a log block in the old format before
+InnoDB-3.23.52 where the checksum field contains the log block number.
+@return TRUE if ok, or if the log block may be in the format of InnoDB
+version predating 3.23.52 */
+UNIV_INTERN
+ibool
+log_block_checksum_is_ok_or_old_format(
+/*===================================*/
+	const byte*	block);	/*!< in: pointer to a log block */
+
+/*******************************************************//**
+Calculates the new value for lsn when more data is added to the log. */
+UNIV_INTERN
+ib_uint64_t
+recv_calc_lsn_on_data_add(
+/*======================*/
+	ib_uint64_t	lsn,	/*!< in: old lsn */
+	ib_uint64_t	len);	/*!< in: this many bytes of data is
+				added, log block headers not included */
+
 #ifdef UNIV_HOTBACKUP
 extern ibool	recv_replay_file_ops;
 
@@ -182,6 +204,21 @@ UNIV_INTERN
 void
 recv_recovery_rollback_active(void);
 /*===============================*/
+
+/*******************************************************************//**
+Tries to parse a single log record and returns its length.
+@return	length of the record, or 0 if the record was not complete */
+UNIV_INTERN
+ulint
+recv_parse_log_rec(
+/*===============*/
+	byte*	ptr,	/*!< in: pointer to a buffer */
+	byte*	end_ptr,/*!< in: pointer to the buffer end */
+	byte*	type,	/*!< out: type */
+	ulint*	space,	/*!< out: space id */
+	ulint*	page_no,/*!< out: page number */
+	byte**	body);	/*!< out: log record body start */
+
 /*******************************************************//**
 Scans log from a buffer and stores new log data to the parsing buffer.
 Parses and hashes the log records if new data found.  Unless
diff --git a/storage/xtradb/include/os0file.h b/storage/xtradb/include/os0file.h
index 98cab5ef874..bc3a54192d5 100644
--- a/storage/xtradb/include/os0file.h
+++ b/storage/xtradb/include/os0file.h
@@ -463,6 +463,14 @@ os_file_set_eof(
 /*============*/
 	FILE*		file);	/*!< in: file to be truncated */
 /***********************************************************************//**
+Truncates a file at the specified position.
+@return TRUE if success */
+UNIV_INTERN
+ibool
+os_file_set_eof_at(
+	os_file_t	file, /*!< in: handle to a file */
+	ib_uint64_t	new_len);/*!< in: new file length */
+/***********************************************************************//**
 Flushes the write buffers of a given file to the disk.
 @return	TRUE if success */
 UNIV_INTERN
diff --git a/storage/xtradb/include/os0sync.h b/storage/xtradb/include/os0sync.h
index 7366e2c3402..6732fa52b29 100644
--- a/storage/xtradb/include/os0sync.h
+++ b/storage/xtradb/include/os0sync.h
@@ -287,7 +287,11 @@ Atomic compare-and-swap and increment for InnoDB. */
 
 #if defined(HAVE_IB_GCC_ATOMIC_BUILTINS)
 
-#define HAVE_ATOMIC_BUILTINS
+# define HAVE_ATOMIC_BUILTINS
+
+# ifdef HAVE_IB_GCC_ATOMIC_BUILTINS_64
+#  define HAVE_ATOMIC_BUILTINS_64
+# endif
 
 /**********************************************************//**
 Returns true if swapped, ptr is pointer to target, old_val is value to
@@ -326,6 +330,9 @@ amount of increment. */
 # define os_atomic_increment_ulint(ptr, amount) \
 	os_atomic_increment(ptr, amount)
 
+# define os_atomic_increment_uint64(ptr, amount) \
+	os_atomic_increment(ptr, amount)
+
 /**********************************************************//**
 Returns the old value of *ptr, atomically sets *ptr to new_val */
 
@@ -334,12 +341,13 @@ Returns the old value of *ptr, atomically sets *ptr to new_val */
 
 #elif defined(HAVE_IB_SOLARIS_ATOMICS)
 
-#define HAVE_ATOMIC_BUILTINS
+# define HAVE_ATOMIC_BUILTINS
+# define HAVE_ATOMIC_BUILTINS_64
 
 /* If not compiling with GCC or GCC doesn't support the atomic
 intrinsics and running on Solaris >= 10 use Solaris atomics */
 
-#include <atomic.h>
+# include <atomic.h>
 
 /**********************************************************//**
 Returns true if swapped, ptr is pointer to target, old_val is value to
@@ -379,6 +387,9 @@ amount of increment. */
 # define os_atomic_increment_ulint(ptr, amount) \
 	atomic_add_long_nv(ptr, amount)
 
+# define os_atomic_increment_uint64(ptr, amount) \
+	atomic_add_64_nv(ptr, amount)
+
 /**********************************************************//**
 Returns the old value of *ptr, atomically sets *ptr to new_val */
 
@@ -387,7 +398,11 @@ Returns the old value of *ptr, atomically sets *ptr to new_val */
 
 #elif defined(HAVE_WINDOWS_ATOMICS)
 
-#define HAVE_ATOMIC_BUILTINS
+# define HAVE_ATOMIC_BUILTINS
+
+# ifndef _WIN32
+#  define HAVE_ATOMIC_BUILTINS_64
+# endif
 
 /* On Windows, use Windows atomics / interlocked */
 # ifdef _WIN64
@@ -425,6 +440,11 @@ amount of increment. */
 # define os_atomic_increment_ulint(ptr, amount) \
 	((ulint) (win_xchg_and_add(ptr, amount) + amount))
 
+# define os_atomic_increment_uint64(ptr, amount)		\
+	((ib_uint64_t) (InterlockedExchangeAdd64(		\
+				 (ib_int64_t*) ptr,		\
+				 (ib_int64_t) amount) + amount))
+
 /**********************************************************//**
 Returns the old value of *ptr, atomically sets *ptr to new_val.
 InterlockedExchange() operates on LONG, and the LONG will be
diff --git a/storage/xtradb/include/srv0srv.h b/storage/xtradb/include/srv0srv.h
index 8038178c2f3..a144b1fdb67 100644
--- a/storage/xtradb/include/srv0srv.h
+++ b/storage/xtradb/include/srv0srv.h
@@ -60,6 +60,14 @@ extern os_event_t	srv_lock_timeout_thread_event;
 /* This event is set at shutdown to wakeup threads from sleep */
 extern os_event_t	srv_shutdown_event;
 
+/* This event is set on checkpoint completion to wake the redo log parser
+thread */
+extern os_event_t	srv_checkpoint_completed_event;
+
+/* This event is set on the online redo log following thread exit to signal
+that the (slow) shutdown may proceed */
+extern os_event_t	srv_redo_log_thread_finished_event;
+
 /* If the last data file is auto-extended, we add this many pages to it
 at a time */
 #define SRV_AUTO_EXTEND_INCREMENT	\
@@ -126,6 +134,11 @@ extern ibool	srv_recovery_stats;
 
 extern ulint	srv_use_purge_thread;
 
+extern my_bool	srv_track_changed_pages;
+
+extern
+ulonglong       srv_changed_pages_limit;
+
 extern ibool	srv_auto_extend_last_data_file;
 extern ulint	srv_last_file_size_max;
 extern char**	srv_log_group_home_dirs;
@@ -213,6 +226,9 @@ extern unsigned long long	srv_stats_sample_pages;
 extern ulong	srv_stats_auto_update;
 extern ulint	srv_stats_update_need_lock;
 extern ibool	srv_use_sys_stats_table;
+#ifdef UNIV_DEBUG
+extern ulong	srv_sys_stats_root_page;
+#endif
 
 extern ibool	srv_use_doublewrite_buf;
 extern ibool	srv_use_checksums;
@@ -284,6 +300,7 @@ extern	ibool	srv_print_latch_waits;
 
 extern ulint	srv_activity_count;
 extern ulint	srv_fatal_semaphore_wait_threshold;
+#define SRV_SEMAPHORE_WAIT_EXTENSION	7200
 extern ulint	srv_dml_needed_delay;
 extern long long	srv_kill_idle_transaction;
 
@@ -644,6 +661,15 @@ srv_LRU_dump_restore_thread(
 	void*	arg);	/*!< in: a dummy parameter required by
 			os_thread_create */
 /******************************************************************//**
+A thread which follows the redo log and outputs the changed page bitmap.
+@return a dummy value */
+UNIV_INTERN
+os_thread_ret_t
+srv_redo_log_follow_thread(
+/*=======================*/
+	void*	arg);	/*!< in: a dummy parameter required by
+			os_thread_create */
+/******************************************************************//**
 Outputs to a file the output of the InnoDB Monitor.
 @return FALSE if not all information printed
 due to failure to obtain necessary mutex */
diff --git a/storage/xtradb/include/univ.i b/storage/xtradb/include/univ.i
index 1ae4a48be31..0305aec6a77 100644
--- a/storage/xtradb/include/univ.i
+++ b/storage/xtradb/include/univ.i
@@ -46,7 +46,7 @@ Created 1/20/1994 Heikki Tuuri
 #define INNODB_VERSION_MAJOR	1
 #define INNODB_VERSION_MINOR	0
 #define INNODB_VERSION_BUGFIX	17
-#define PERCONA_INNODB_VERSION 13.01
+#define PERCONA_INNODB_VERSION 14.1
 
 /* The following is the InnoDB version as shown in
 SELECT plugin_version FROM information_schema.plugins;
@@ -270,6 +270,24 @@ management to ensure correct alignment for doubles etc. */
 			========================
 */
 
+/** There are currently two InnoDB file formats which are used to group
+features with similar restrictions and dependencies. Using an enum allows
+switch statements to give a compiler warning when a new one is introduced. */
+enum innodb_file_formats_enum {
+	/** Antelope File Format: InnoDB/MySQL up to 5.1.
+	This format includes REDUNDANT and COMPACT row formats */
+	UNIV_FORMAT_A		= 0,
+
+	/** Barracuda File Format: Introduced in InnoDB plugin for 5.1:
+	This format includes COMPRESSED and DYNAMIC row formats.  It
+	includes the ability to create secondary indexes from data that
+	is not on the clustered index page and the ability to store more
+	data off the clustered index page. */
+	UNIV_FORMAT_B		= 1
+};
+
+typedef enum innodb_file_formats_enum innodb_file_formats_t;
+
 /* The 2-logarithm of UNIV_PAGE_SIZE: */
 /* #define UNIV_PAGE_SIZE_SHIFT	14 */
 #define UNIV_PAGE_SIZE_SHIFT_MAX	14
diff --git a/storage/xtradb/include/ut0rbt.h b/storage/xtradb/include/ut0rbt.h
index 6fd050acfe7..100cf5f648b 100644
--- a/storage/xtradb/include/ut0rbt.h
+++ b/storage/xtradb/include/ut0rbt.h
@@ -110,6 +110,10 @@ struct ib_rbt_bound_struct {
 /* Compare a key with the node value (t is tree, k is key, n is node)*/
 #define rbt_compare(t, k, n) (t->compare(k, n->value))
 
+/* Node size. FIXME: name might clash, but currently it does not, so for easier
+maintenance do not rename it for now. */
+#define	SIZEOF_NODE(t)	((sizeof(ib_rbt_node_t) + t->sizeof_value) - 1)
+
 /****************************************************************//**
 Free an instance of  a red black tree */
 UNIV_INTERN
@@ -181,6 +185,18 @@ rbt_add_node(
 	const void*	value);		/*!< in: this value is copied
 					to the node */
 /****************************************************************//**
+Add a new caller-provided node to tree at the specified position.
+The node must have its key fields initialized correctly.
+@return added node */
+UNIV_INTERN
+const ib_rbt_node_t*
+rbt_add_preallocated_node(
+/*======================*/
+	ib_rbt_t*	tree,		/*!< in: rb tree */
+	ib_rbt_bound_t*	parent,		/*!< in: parent */
+	ib_rbt_node_t*	node);		/*!< in: node */
+
+/****************************************************************//**
 Return the left most data node in the tree
 @return	left most node */
 UNIV_INTERN
@@ -267,6 +283,13 @@ rbt_clear(
 /*======*/
 	ib_rbt_t*	tree);		/*!< in: rb tree */
 /****************************************************************//**
+Clear the tree without deleting and freeing its nodes. */
+UNIV_INTERN
+void
+rbt_reset(
+/*======*/
+	 ib_rbt_t*	tree);		/*!< in: rb tree */
+/****************************************************************//**
 Merge the node from dst into src. Return the number of nodes merged.
 @return	no. of recs merged */
 UNIV_INTERN
diff --git a/storage/xtradb/log/log0log.c b/storage/xtradb/log/log0log.c
index a1da38c4579..9c02113dc20 100644
--- a/storage/xtradb/log/log0log.c
+++ b/storage/xtradb/log/log0log.c
@@ -201,6 +201,54 @@ log_buf_pool_get_oldest_modification(void)
 	return(lsn);
 }
 
+/****************************************************************//**
+Safely reads the log_sys->tracked_lsn value.  Uses atomic operations
+if available, otherwise this field is protected with the log system
+mutex.  The writer counterpart function is log_set_tracked_lsn() in
+log0online.c.
+
+@return log_sys->tracked_lsn value. */
+UNIV_INLINE
+ib_uint64_t
+log_get_tracked_lsn()
+{
+#ifdef HAVE_ATOMIC_BUILTINS_64
+	return os_atomic_increment_uint64(&log_sys->tracked_lsn, 0);
+#else
+	ut_ad(mutex_own(&(log_sys->mutex)));
+	return log_sys->tracked_lsn;
+#endif
+}
+
+/****************************************************************//**
+Checks if the log groups have a big enough margin of free space in
+so that a new log entry can be written without overwriting log data
+that is not read by the changed page bitmap thread.
+@return TRUE if there is not enough free space. */
+static
+ibool
+log_check_tracking_margin(
+	ulint	lsn_advance)	/*!< in: an upper limit on how much log data we
+				plan to write.  If zero, the margin will be
+				checked for the already-written log. */
+{
+	ib_uint64_t	tracked_lsn;
+	ulint		tracked_lsn_age;
+
+	if (!srv_track_changed_pages) {
+		return FALSE;
+	}
+
+	ut_ad(mutex_own(&(log_sys->mutex)));
+
+	tracked_lsn = log_get_tracked_lsn();
+	tracked_lsn_age = log_sys->lsn - tracked_lsn;
+
+	/* The overwrite would happen when log_sys->log_group_capacity is
+	exceeded, but we use max_checkpoint_age for an extra safety margin. */
+	return tracked_lsn_age + lsn_advance > log_sys->max_checkpoint_age;
+}
+
 /************************************************************//**
 Opens the log for log_write_low. The log must be closed with log_close and
 released with log_release.
@@ -217,9 +265,7 @@ log_reserve_and_open(
 	ulint	archived_lsn_age;
 	ulint	dummy;
 #endif /* UNIV_LOG_ARCHIVE */
-#ifdef UNIV_DEBUG
 	ulint	count			= 0;
-#endif /* UNIV_DEBUG */
 
 	ut_a(len < log->buf_size / 2);
 loop:
@@ -247,6 +293,19 @@ loop:
 		goto loop;
 	}
 
+	if (log_check_tracking_margin(len_upper_limit) && (++count < 50)) {
+
+		/* This log write would violate the untracked LSN free space
+		margin.  Limit this to 50 retries as there might be situations
+		where we have no choice but to proceed anyway, i.e. if the log
+		is about to be overflown, log tracking or not. */
+		mutex_exit(&(log->mutex));
+
+		os_thread_sleep(10000);
+
+		goto loop;
+	}
+
 #ifdef UNIV_LOG_ARCHIVE
 	if (log->archiving_state != LOG_ARCH_OFF) {
 
@@ -385,6 +444,8 @@ log_close(void)
 	ulint		first_rec_group;
 	ib_uint64_t	oldest_lsn;
 	ib_uint64_t	lsn;
+	ib_uint64_t	tracked_lsn;
+	ulint		tracked_lsn_age;
 	log_t*		log	= log_sys;
 	ib_uint64_t	checkpoint_age;
 
@@ -411,6 +472,19 @@ log_close(void)
 		log->check_flush_or_checkpoint = TRUE;
 	}
 
+	if (srv_track_changed_pages) {
+
+		tracked_lsn = log_get_tracked_lsn();
+		tracked_lsn_age = lsn - tracked_lsn;
+
+		if (tracked_lsn_age >= log->log_group_capacity) {
+
+			fprintf(stderr, " InnoDB: Error: the age of the "
+				"oldest untracked record exceeds the log "
+				"group capacity!\n");
+		}
+	}
+
 	checkpoint_age = lsn - log->last_checkpoint_lsn;
 
 	if (checkpoint_age >= log->log_group_capacity) {
@@ -872,6 +946,8 @@ log_init(void)
 	log_sys->archiving_on = os_event_create(NULL);
 #endif /* UNIV_LOG_ARCHIVE */
 
+	log_sys->tracked_lsn = 0;
+
 	/*----------------------------*/
 
 	log_block_init(log_sys->buf, log_sys->lsn);
@@ -1721,6 +1797,12 @@ log_io_complete_checkpoint(void)
 	}
 
 	mutex_exit(&(log_sys->mutex));
+
+	/* Wake the redo log watching thread to parse the log up to this
+	checkpoint. */
+	if (srv_track_changed_pages) {
+		os_event_set(srv_checkpoint_completed_event);
+	}
 }
 
 /*******************************************************************//**
@@ -3065,6 +3147,15 @@ loop:
 
 	log_checkpoint_margin();
 
+	mutex_enter(&(log_sys->mutex));
+	if (log_check_tracking_margin(0)) {
+
+		mutex_exit(&(log_sys->mutex));
+		os_thread_sleep(10000);
+		goto loop;
+	}
+	mutex_exit(&(log_sys->mutex));
+
 #ifdef UNIV_LOG_ARCHIVE
 	log_archive_margin();
 #endif /* UNIV_LOG_ARCHIVE */
@@ -3093,6 +3184,7 @@ logs_empty_and_mark_files_at_shutdown(void)
 /*=======================================*/
 {
 	ib_uint64_t	lsn;
+	ib_uint64_t	tracked_lsn;
 	ulint		arch_log_no;
 
 	if (srv_print_verbose_log) {
@@ -3198,9 +3290,12 @@ loop:
 
 	mutex_enter(&(log_sys->mutex));
 
+	tracked_lsn = log_get_tracked_lsn();
+
 	lsn = log_sys->lsn;
 
 	if (lsn != log_sys->last_checkpoint_lsn
+	    || (srv_track_changed_pages	&& (tracked_lsn != log_sys->last_checkpoint_lsn))
 #ifdef UNIV_LOG_ARCHIVE
 	    || (srv_log_archive_on
 		&& lsn != log_sys->archived_lsn + LOG_BLOCK_HDR_SIZE)
@@ -3255,6 +3350,11 @@ loop:
 
 	srv_shutdown_state = SRV_SHUTDOWN_LAST_PHASE;
 
+	/* Signal the log following thread to quit */
+	if (srv_track_changed_pages) {
+		os_event_set(srv_checkpoint_completed_event);
+	}
+
 	/* Make some checks that the server really is quiet */
 	ut_a(srv_n_threads_active[SRV_MASTER] == 0);
 	ut_a(buf_all_freed());
@@ -3274,6 +3374,10 @@ loop:
 
 	fil_flush_file_spaces(FIL_TABLESPACE);
 
+	if (srv_track_changed_pages) {
+		os_event_wait(srv_redo_log_thread_finished_event);
+	}
+
 	fil_close_all_files();
 
 	/* Make some checks that the server really is quiet */
@@ -3399,6 +3503,18 @@ log_print(
 		((log_sys->n_log_ios - log_sys->n_log_ios_old)
 		 / time_elapsed));
 
+	if (srv_track_changed_pages) {
+
+		/* The maximum tracked LSN age is equal to the maximum
+		checkpoint age */
+		fprintf(file,
+			"Log tracking enabled\n"
+			"Log tracked up to   %llu\n"
+			"Max tracked LSN age %lu\n",
+			log_get_tracked_lsn(),
+			log_sys->max_checkpoint_age);
+	}
+
 	log_sys->n_log_ios_old = log_sys->n_log_ios;
 	log_sys->last_printout_time = current_time;
 
diff --git a/storage/xtradb/log/log0online.c b/storage/xtradb/log/log0online.c
new file mode 100644
index 00000000000..512b13fb311
--- /dev/null
+++ b/storage/xtradb/log/log0online.c
@@ -0,0 +1,1085 @@
+/*****************************************************************************
+
+Copyright (c) 2011-2012 Percona Inc. All Rights Reserved.
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; version 2 of the License.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA
+
+*****************************************************************************/
+
+/**************************************************//**
+@file log/log0online.c
+Online database log parsing for changed page tracking
+
+*******************************************************/
+
+#include "log0online.h"
+
+#include "my_dbug.h"
+
+#include "log0recv.h"
+#include "mach0data.h"
+#include "mtr0log.h"
+#include "srv0srv.h"
+#include "srv0start.h"
+#include "trx0sys.h"
+#include "ut0rbt.h"
+
+enum { FOLLOW_SCAN_SIZE = 4 * (UNIV_PAGE_SIZE_MAX) };
+
+/** Log parsing and bitmap output data structure */
+struct log_bitmap_struct {
+	byte		read_buf[FOLLOW_SCAN_SIZE];
+					/*!< log read buffer */
+	byte		parse_buf[RECV_PARSING_BUF_SIZE];
+					/*!< log parse buffer */
+	byte*		parse_buf_end;  /*!< parse buffer position where the
+					next read log data should be copied to.
+					If the previous log records were fully
+					parsed, it points to the start,
+					otherwise points immediatelly past the
+					end of the incomplete log record. */
+	char*		out_name;	/*!< the file name for bitmap output */
+	os_file_t	out;		/*!< the bitmap output file */
+	ib_uint64_t	out_offset;	/*!< the next write position in the
+					bitmap output file */
+	ib_uint64_t	start_lsn;	/*!< the LSN of the next unparsed
+					record and the start of the next LSN
+					interval to be parsed.  */
+	ib_uint64_t	end_lsn;	/*!< the end of the LSN interval to be
+					parsed, equal to the next checkpoint
+					LSN at the time of parse */
+	ib_uint64_t	next_parse_lsn;	/*!< the LSN of the next unparsed
+					record in the current parse */
+	ib_rbt_t*	modified_pages; /*!< the current modified page set,
+					organized as the RB-tree with the keys
+					of (space, 4KB-block-start-page-id)
+					pairs */
+	ib_rbt_node_t*	page_free_list; /*!< Singly-linked list of freed nodes
+					of modified_pages tree for later
+					reuse.  Nodes are linked through
+					ib_rbt_node_t.left as this field has
+					both the correct type and the tree does
+					not mind its overwrite during
+					rbt_next() tree traversal. */
+};
+
+/* The log parsing and bitmap output struct instance */
+static struct log_bitmap_struct* log_bmp_sys;
+
+/* File name stem for modified page bitmaps */
+static const char* modified_page_stem = "ib_modified_log.";
+
+/* On server startup with empty database srv_start_lsn == 0, in
+which case the first LSN of actual log records will be this. */
+#define MIN_TRACKED_LSN ((LOG_START_LSN) + (LOG_BLOCK_HDR_SIZE))
+
+/* Tests if num bit of bitmap is set */
+#define IS_BIT_SET(bitmap, num) \
+        (*((bitmap) + ((num) >> 3)) & (1UL << ((num) & 7UL)))
+
+/** The bitmap file block size in bytes.  All writes will be multiples of this.
+ */
+enum {
+	MODIFIED_PAGE_BLOCK_SIZE = 4096
+};
+
+
+/** Offsets in a file bitmap block */
+enum {
+	MODIFIED_PAGE_IS_LAST_BLOCK = 0,/* 1 if last block in the current
+					write, 0 otherwise. */
+	MODIFIED_PAGE_START_LSN = 4,	/* The starting tracked LSN of this and
+					other blocks in the same write */
+	MODIFIED_PAGE_END_LSN = 12,	/* The ending tracked LSN of this and
+					other blocks in the same write */
+	MODIFIED_PAGE_SPACE_ID = 20,	/* The space ID of tracked pages in
+					this block */
+	MODIFIED_PAGE_1ST_PAGE_ID = 24,	/* The page ID of the first tracked
+					page in this block */
+	MODIFIED_PAGE_BLOCK_UNUSED_1 = 28,/* Unused in order to align the start
+					of bitmap at 8 byte boundary */
+	MODIFIED_PAGE_BLOCK_BITMAP = 32,/* Start of the bitmap itself */
+	MODIFIED_PAGE_BLOCK_UNUSED_2 = MODIFIED_PAGE_BLOCK_SIZE - 8,
+					/* Unused in order to align the end of
+					bitmap at 8 byte boundary */
+	MODIFIED_PAGE_BLOCK_CHECKSUM = MODIFIED_PAGE_BLOCK_SIZE - 4
+					/* The checksum of the current block */
+};
+
+/** Length of the bitmap data in a block in bytes */
+enum { MODIFIED_PAGE_BLOCK_BITMAP_LEN
+       = MODIFIED_PAGE_BLOCK_UNUSED_2 - MODIFIED_PAGE_BLOCK_BITMAP };
+
+/** Length of the bitmap data in a block in page ids */
+enum { MODIFIED_PAGE_BLOCK_ID_COUNT = MODIFIED_PAGE_BLOCK_BITMAP_LEN * 8 };
+
+/****************************************************************//**
+Provide a comparisson function for the RB-tree tree (space,
+block_start_page) pairs.  Actual implementation does not matter as
+long as the ordering is full.
+@return -1 if p1 < p2, 0 if p1 == p2, 1 if p1 > p2
+*/
+static
+int
+log_online_compare_bmp_keys(
+/*========================*/
+	const void* p1,	/*!<in: 1st key to compare */
+	const void* p2)	/*!<in: 2nd key to compare */
+{
+	const byte *k1 = (const byte *)p1;
+	const byte *k2 = (const byte *)p2;
+
+	ulint k1_space = mach_read_from_4(k1 + MODIFIED_PAGE_SPACE_ID);
+	ulint k2_space = mach_read_from_4(k2 + MODIFIED_PAGE_SPACE_ID);
+	if (k1_space == k2_space) {
+		ulint k1_start_page
+			= mach_read_from_4(k1 + MODIFIED_PAGE_1ST_PAGE_ID);
+		ulint k2_start_page
+			= mach_read_from_4(k2 + MODIFIED_PAGE_1ST_PAGE_ID);
+		return k1_start_page < k2_start_page
+			? -1 : k1_start_page > k2_start_page ? 1 : 0;
+	}
+	return k1_space < k2_space ? -1 : 1;
+}
+
+/****************************************************************//**
+Set a bit for tracked page in the bitmap. Expand the bitmap tree as
+necessary. */
+static
+void
+log_online_set_page_bit(
+/*====================*/
+	ulint	space,	/*!<in: log record space id */
+	ulint	page_no)/*!<in: log record page id */
+{
+	ulint		block_start_page;
+	ulint		block_pos;
+	uint		bit_pos;
+	ib_rbt_bound_t	tree_search_pos;
+	byte		search_page[MODIFIED_PAGE_BLOCK_SIZE];
+	byte		*page_ptr;
+
+	ut_a(space != ULINT_UNDEFINED);
+	ut_a(page_no != ULINT_UNDEFINED);
+
+	block_start_page = page_no / MODIFIED_PAGE_BLOCK_ID_COUNT
+		* MODIFIED_PAGE_BLOCK_ID_COUNT;
+	block_pos = block_start_page ? (page_no % block_start_page / 8)
+		: (page_no / 8);
+	bit_pos = page_no % 8;
+
+	mach_write_to_4(search_page + MODIFIED_PAGE_SPACE_ID, space);
+	mach_write_to_4(search_page + MODIFIED_PAGE_1ST_PAGE_ID,
+			block_start_page);
+
+	if (!rbt_search(log_bmp_sys->modified_pages, &tree_search_pos,
+			search_page)) {
+		page_ptr = rbt_value(byte, tree_search_pos.last);
+	}
+	else {
+		ib_rbt_node_t *new_node;
+
+		if (log_bmp_sys->page_free_list) {
+			new_node = log_bmp_sys->page_free_list;
+			log_bmp_sys->page_free_list = new_node->left;
+		}
+		else {
+			new_node = ut_malloc(SIZEOF_NODE(
+				  log_bmp_sys->modified_pages));
+		}
+		memset(new_node, 0, SIZEOF_NODE(log_bmp_sys->modified_pages));
+
+		page_ptr = rbt_value(byte, new_node);
+		mach_write_to_4(page_ptr + MODIFIED_PAGE_SPACE_ID, space);
+		mach_write_to_4(page_ptr + MODIFIED_PAGE_1ST_PAGE_ID,
+				block_start_page);
+
+		rbt_add_preallocated_node(log_bmp_sys->modified_pages,
+					  &tree_search_pos, new_node);
+	}
+	page_ptr[MODIFIED_PAGE_BLOCK_BITMAP + block_pos] |= (1U << bit_pos);
+}
+
+/****************************************************************//**
+Calculate a bitmap block checksum.  Algorithm borrowed from
+log_block_calc_checksum.
+@return checksum */
+UNIV_INLINE
+ulint
+log_online_calc_checksum(
+/*=====================*/
+	const byte*	block)	/*!<in: bitmap block */
+{
+	ulint	sum;
+	ulint	sh;
+	ulint	i;
+
+	sum = 1;
+	sh = 0;
+
+	for (i = 0; i < MODIFIED_PAGE_BLOCK_CHECKSUM; i++) {
+
+		ulint	b = block[i];
+		sum &= 0x7FFFFFFFUL;
+		sum += b;
+		sum += b << sh;
+		sh++;
+		if (sh > 24) {
+			sh = 0;
+		}
+	}
+
+	return sum;
+}
+
+/****************************************************************//**
+Get the last tracked fully LSN from the bitmap file by reading
+backwards untile a correct end page is found.  Detects incomplete
+writes and corrupted data.  Sets the start output position for the
+written bitmap data.
+@return the last fully tracked LSN */
+static
+ib_uint64_t
+log_online_read_last_tracked_lsn()
+/*==============================*/
+{
+	byte		page[MODIFIED_PAGE_BLOCK_SIZE];
+	ib_uint64_t	read_offset	= log_bmp_sys->out_offset;
+	/* Initialize these to nonequal values so that file size == 0 case with
+	zero loop repetitions is handled correctly */
+	ulint		checksum	= 0;
+	ulint		actual_checksum = !checksum;
+	ibool		is_last_page	= FALSE;
+	ib_uint64_t	result;
+
+	ut_ad(log_bmp_sys->out_offset % MODIFIED_PAGE_BLOCK_SIZE == 0);
+
+	while (checksum != actual_checksum && read_offset > 0 && !is_last_page)
+	{
+
+		ulint		offset_low, offset_high;
+		ibool		success;
+
+		read_offset -= MODIFIED_PAGE_BLOCK_SIZE;
+		offset_high = (ulint)(read_offset >> 32);
+		offset_low = (ulint)(read_offset & 0xFFFFFFFF);
+
+		success = os_file_read(log_bmp_sys->out, page, offset_low,
+				       offset_high, MODIFIED_PAGE_BLOCK_SIZE);
+		if (!success) {
+
+			/* The following call prints an error message */
+			os_file_get_last_error(TRUE);
+			/* Here and below assume that bitmap file names do not
+			contain apostrophes, thus no need for
+			ut_print_filename(). */
+			fprintf(stderr, "InnoDB: Warning: failed reading "
+				"changed page bitmap file \'%s\'\n",
+				log_bmp_sys->out_name);
+			return MIN_TRACKED_LSN;
+		}
+
+		is_last_page
+			= mach_read_from_4(page + MODIFIED_PAGE_IS_LAST_BLOCK);
+		checksum = mach_read_from_4(page
+					    + MODIFIED_PAGE_BLOCK_CHECKSUM);
+		actual_checksum = log_online_calc_checksum(page);
+		if (checksum != actual_checksum) {
+
+			fprintf(stderr, "InnoDB: Warning: corruption "
+				"detected in \'%s\' at offset %llu\n",
+				log_bmp_sys->out_name, read_offset);
+		}
+
+	};
+
+	if (UNIV_LIKELY(checksum == actual_checksum && is_last_page)) {
+
+		log_bmp_sys->out_offset = read_offset
+			+ MODIFIED_PAGE_BLOCK_SIZE;
+		result = mach_read_ull(page + MODIFIED_PAGE_END_LSN);
+	}
+	else {
+		log_bmp_sys->out_offset = read_offset;
+		result = 0;
+	}
+
+	/* Truncate the output file to discard the corrupted bitmap data, if
+	any */
+	if (!os_file_set_eof_at(log_bmp_sys->out,
+				log_bmp_sys->out_offset)) {
+		fprintf(stderr, "InnoDB: Warning: failed truncating "
+			"changed page bitmap file \'%s\' to %llu bytes\n",
+			log_bmp_sys->out_name, log_bmp_sys->out_offset);
+		result = 0;
+	}
+	return result;
+}
+
+/****************************************************************//**
+Safely write the log_sys->tracked_lsn value.  Uses atomic operations
+if available, otherwise this field is protected with the log system
+mutex.  The reader counterpart function is log_get_tracked_lsn() in
+log0log.c. */
+UNIV_INLINE
+void
+log_set_tracked_lsn(
+/*================*/
+	ib_uint64_t	tracked_lsn)	/*!<in: new value */
+{
+#ifdef HAVE_ATOMIC_BUILTINS_64
+	/* Single writer, no data race here */
+	ib_uint64_t old_value
+		= os_atomic_increment_uint64(&log_sys->tracked_lsn, 0);
+	(void) os_atomic_increment_uint64(&log_sys->tracked_lsn,
+					  tracked_lsn - old_value);
+#else
+	mutex_enter(&log_sys->mutex);
+	log_sys->tracked_lsn = tracked_lsn;
+	mutex_exit(&log_sys->mutex);
+#endif
+}
+
+/****************************************************************//**
+Diagnose a gap in tracked LSN range on server startup due to crash or
+very fast shutdown and try to close it by tracking the data
+immediatelly, if possible. */
+static
+void
+log_online_track_missing_on_startup(
+/*================================*/
+	ib_uint64_t	last_tracked_lsn,	/*!<in: last tracked LSN read
+						from the bitmap file */
+	ib_uint64_t	tracking_start_lsn)	/*!<in: last checkpoint LSN of
+						the current server startup */
+{
+	ut_ad(last_tracked_lsn != tracking_start_lsn);
+
+	fprintf(stderr, "InnoDB: last tracked LSN in \'%s\' is %llu, but "
+		"last checkpoint LSN is %llu.  This might be due to a server "
+		"crash or a very fast shutdown.  ", log_bmp_sys->out_name,
+		last_tracked_lsn, tracking_start_lsn);
+
+	/* last_tracked_lsn might be < MIN_TRACKED_LSN in the case of empty
+	   bitmap file, handle this too. */
+	last_tracked_lsn = ut_max(last_tracked_lsn, MIN_TRACKED_LSN);
+
+	/* See if we can fully recover the missing interval */
+	if (log_sys->lsn - last_tracked_lsn < log_sys->log_group_capacity) {
+
+		fprintf(stderr,
+			"Reading the log to advance the last tracked LSN.\n");
+
+		log_bmp_sys->start_lsn = last_tracked_lsn;
+		log_set_tracked_lsn(log_bmp_sys->start_lsn);
+		log_online_follow_redo_log();
+		ut_ad(log_bmp_sys->end_lsn >= tracking_start_lsn);
+
+		fprintf(stderr,
+			"InnoDB: continuing tracking changed pages from LSN "
+			"%llu\n", log_bmp_sys->end_lsn);
+	}
+	else {
+		fprintf(stderr,
+			"The age of last tracked LSN exceeds log capacity, "
+			"tracking-based incremental backups will work only "
+			"from the higher LSN!\n");
+
+		log_bmp_sys->end_lsn = log_bmp_sys->start_lsn
+			= tracking_start_lsn;
+		log_set_tracked_lsn(log_bmp_sys->start_lsn);
+
+		fprintf(stderr,
+			"InnoDB: starting tracking changed pages from LSN "
+			"%llu\n", log_bmp_sys->end_lsn);
+	}
+}
+
+/*********************************************************************//**
+Initialize the online log following subsytem. */
+UNIV_INTERN
+void
+log_online_read_init()
+/*==================*/
+{
+	char		buf[FN_REFLEN];
+	ibool		success;
+	ib_uint64_t	tracking_start_lsn
+		= ut_max(log_sys->last_checkpoint_lsn, MIN_TRACKED_LSN);
+
+	/* Assert (could be compile-time assert) that bitmap data start and end
+	in a bitmap block is 8-byte aligned */
+	ut_a(MODIFIED_PAGE_BLOCK_BITMAP % 8 == 0);
+	ut_a(MODIFIED_PAGE_BLOCK_BITMAP_LEN % 8 == 0);
+
+	log_bmp_sys = ut_malloc(sizeof(*log_bmp_sys));
+
+	ut_snprintf(buf, FN_REFLEN, "%s%s%d", srv_data_home,
+		    modified_page_stem, 1);
+	log_bmp_sys->out_name = ut_malloc(strlen(buf) + 1);
+	ut_strcpy(log_bmp_sys->out_name, buf);
+
+	log_bmp_sys->modified_pages = rbt_create(MODIFIED_PAGE_BLOCK_SIZE,
+						 log_online_compare_bmp_keys);
+	log_bmp_sys->page_free_list = NULL;
+
+	log_bmp_sys->out
+		= os_file_create_simple_no_error_handling
+		(log_bmp_sys->out_name, OS_FILE_OPEN, OS_FILE_READ_WRITE,
+		 &success);
+
+	if (!success) {
+
+		/* New file, tracking from scratch */
+		log_bmp_sys->out
+			= os_file_create_simple_no_error_handling
+			(log_bmp_sys->out_name,	OS_FILE_CREATE,
+			 OS_FILE_READ_WRITE, &success);
+		if (!success) {
+
+			/* The following call prints an error message */
+			os_file_get_last_error(TRUE);
+			fprintf(stderr,
+				"InnoDB: Error: Cannot create \'%s\'\n",
+				log_bmp_sys->out_name);
+			exit(1);
+		}
+
+		log_bmp_sys->out_offset = 0;
+	}
+	else {
+
+		/* Old file, read last tracked LSN and continue from there */
+		ulint		size_low;
+		ulint		size_high;
+		ib_uint64_t	last_tracked_lsn;
+
+		success = os_file_get_size(log_bmp_sys->out, &size_low,
+					   &size_high);
+		ut_a(success);
+
+		log_bmp_sys->out_offset
+			= ((ib_uint64_t)size_high << 32) | size_low;
+
+		if (log_bmp_sys->out_offset % MODIFIED_PAGE_BLOCK_SIZE != 0) {
+
+			fprintf(stderr,
+				"InnoDB: Warning: truncated block detected "
+				"in \'%s\' at offset %llu\n",
+				log_bmp_sys->out_name,
+				log_bmp_sys->out_offset);
+			log_bmp_sys->out_offset -=
+				log_bmp_sys->out_offset
+				% MODIFIED_PAGE_BLOCK_SIZE;
+		}
+
+		last_tracked_lsn = log_online_read_last_tracked_lsn();
+
+		if (last_tracked_lsn < tracking_start_lsn) {
+
+			log_online_track_missing_on_startup(last_tracked_lsn,
+							    tracking_start_lsn);
+			return;
+		}
+
+		if (last_tracked_lsn > tracking_start_lsn) {
+
+			fprintf(stderr, "InnoDB: last tracked LSN in \'%s\' "
+				"is %llu, but last checkpoint LSN is %llu. "
+				"The tracking-based incremental backups will "
+				"work only from the latter LSN!\n",
+				log_bmp_sys->out_name, last_tracked_lsn,
+				tracking_start_lsn);
+		}
+
+	}
+
+	fprintf(stderr, "InnoDB: starting tracking changed pages from "
+		"LSN %llu\n", tracking_start_lsn);
+	log_bmp_sys->start_lsn = tracking_start_lsn;
+	log_set_tracked_lsn(tracking_start_lsn);
+}
+
+/*********************************************************************//**
+Shut down the online log following subsystem. */
+UNIV_INTERN
+void
+log_online_read_shutdown()
+/*======================*/
+{
+	ib_rbt_node_t *free_list_node = log_bmp_sys->page_free_list;
+
+	os_file_close(log_bmp_sys->out);
+
+	rbt_free(log_bmp_sys->modified_pages);
+
+	while (free_list_node) {
+		ib_rbt_node_t *next = free_list_node->left;
+		ut_free(free_list_node);
+		free_list_node = next;
+	}
+
+	ut_free(log_bmp_sys->out_name);
+	ut_free(log_bmp_sys);
+}
+
+/*********************************************************************//**
+For the given minilog record type determine if the record has (space; page)
+associated with it.
+@return TRUE if the record has (space; page) in it */
+static
+ibool
+log_online_rec_has_page(
+/*====================*/
+	byte	type)	/*!<in: the minilog record type */
+{
+	return type != MLOG_MULTI_REC_END && type != MLOG_DUMMY_RECORD;
+}
+
+/*********************************************************************//**
+Check if a page field for a given log record type actually contains a page
+id. It does not for file operations and MLOG_LSN.
+@return TRUE if page field contains actual page id, FALSE otherwise */
+static
+ibool
+log_online_rec_page_means_page(
+/*===========================*/
+	byte	type)	/*!<in: log record type */
+{
+	return log_online_rec_has_page(type)
+#ifdef UNIV_LOG_LSN_DEBUG
+		&& type != MLOG_LSN
+#endif
+		&& type != MLOG_FILE_CREATE
+		&& type != MLOG_FILE_RENAME
+		&& type != MLOG_FILE_DELETE
+		&& type != MLOG_FILE_CREATE2;
+}
+
+/*********************************************************************//**
+Parse the log data in the parse buffer for the (space, page) pairs and add
+them to the modified page set as necessary.  Removes the fully-parsed records
+from the buffer.  If an incomplete record is found, moves it to the end of the
+buffer. */
+static
+void
+log_online_parse_redo_log()
+/*=======================*/
+{
+	byte *ptr = log_bmp_sys->parse_buf;
+	byte *end = log_bmp_sys->parse_buf_end;
+
+	ulint len = 0;
+
+	while (ptr != end
+	       && log_bmp_sys->next_parse_lsn < log_bmp_sys->end_lsn) {
+
+		byte	type;
+		ulint	space;
+		ulint	page_no;
+		byte*	body;
+
+		/* recv_sys is not initialized, so on corrupt log we will
+		SIGSEGV.  But the log of a live database should not be
+		corrupt. */
+		len = recv_parse_log_rec(ptr, end, &type, &space, &page_no,
+					 &body);
+		if (len > 0) {
+
+			if (log_online_rec_page_means_page(type)
+			    && (space != TRX_DOUBLEWRITE_SPACE)) {
+
+				ut_a(len >= 3);
+				log_online_set_page_bit(space, page_no);
+			}
+
+			ptr += len;
+			ut_ad(ptr <= end);
+			log_bmp_sys->next_parse_lsn
+			    = recv_calc_lsn_on_data_add
+				(log_bmp_sys->next_parse_lsn, len);
+		}
+		else {
+
+			/* Incomplete log record.  Shift it to the
+			beginning of the parse buffer and leave it to be
+			completed on the next read.  */
+			ut_memmove(log_bmp_sys->parse_buf, ptr, end - ptr);
+			log_bmp_sys->parse_buf_end
+				= log_bmp_sys->parse_buf + (end - ptr);
+			ptr = end;
+		}
+	}
+
+	if (len > 0) {
+
+		log_bmp_sys->parse_buf_end = log_bmp_sys->parse_buf;
+	}
+}
+
+/*********************************************************************//**
+Check the log block checksum.
+@return TRUE if the log block checksum is OK, FALSE otherwise.  */
+static
+ibool
+log_online_is_valid_log_seg(
+/*========================*/
+	const byte* log_block)	/*!< in: read log data */
+{
+	ibool checksum_is_ok
+		= log_block_checksum_is_ok_or_old_format(log_block);
+
+	if (!checksum_is_ok) {
+
+		fprintf(stderr,
+			"InnoDB Error: log block checksum mismatch"
+			"expected %lu, calculated checksum %lu\n",
+			(ulong) log_block_get_checksum(log_block),
+			(ulong) log_block_calc_checksum(log_block));
+	}
+
+	return checksum_is_ok;
+}
+
+/*********************************************************************//**
+Copy new log data to the parse buffer while skipping log block header,
+trailer and already parsed data.  */
+static
+void
+log_online_add_to_parse_buf(
+/*========================*/
+	const byte*	log_block,	/*!< in: read log data */
+	ulint		data_len,	/*!< in: length of read log data */
+	ulint		skip_len)	/*!< in: how much of log data to
+					skip */
+{
+	ulint start_offset = skip_len ? skip_len : LOG_BLOCK_HDR_SIZE;
+	ulint end_offset
+		= (data_len == OS_FILE_LOG_BLOCK_SIZE)
+		? data_len - LOG_BLOCK_TRL_SIZE
+		: data_len;
+	ulint actual_data_len = (end_offset >= start_offset)
+		? end_offset - start_offset : 0;
+
+	ut_memcpy(log_bmp_sys->parse_buf_end, log_block + start_offset,
+		  actual_data_len);
+
+	log_bmp_sys->parse_buf_end += actual_data_len;
+
+	ut_a(log_bmp_sys->parse_buf_end - log_bmp_sys->parse_buf
+	     <= RECV_PARSING_BUF_SIZE);
+}
+
+/*********************************************************************//**
+Parse the log block: first copies the read log data to the parse buffer while
+skipping log block header, trailer and already parsed data.  Then it actually
+parses the log to add to the modified page bitmap. */
+static
+void
+log_online_parse_redo_log_block(
+/*============================*/
+	const byte*	log_block,		  /*!< in: read log data */
+	ulint		skip_already_parsed_len)  /*!< in: how many bytes of
+						  log data should be skipped as
+						  they were parsed before */
+{
+	ulint block_data_len;
+
+	block_data_len = log_block_get_data_len(log_block);
+
+	ut_ad(block_data_len % OS_FILE_LOG_BLOCK_SIZE == 0
+	      || block_data_len < OS_FILE_LOG_BLOCK_SIZE);
+
+	log_online_add_to_parse_buf(log_block, block_data_len,
+				    skip_already_parsed_len);
+	log_online_parse_redo_log();
+}
+
+/*********************************************************************//**
+Read and parse one redo log chunk and updates the modified page bitmap. */
+static
+void
+log_online_follow_log_seg(
+/*======================*/
+	log_group_t*	group,		       /*!< in: the log group to use */
+	ib_uint64_t	block_start_lsn,       /*!< in: the LSN to read from */
+	ib_uint64_t	block_end_lsn)	       /*!< in: the LSN to read to */
+{
+	/* Pointer to the current OS_FILE_LOG_BLOCK-sized chunk of the read log
+	data to parse */
+	byte* log_block = log_bmp_sys->read_buf;
+	byte* log_block_end = log_bmp_sys->read_buf
+		+ (block_end_lsn - block_start_lsn);
+
+	mutex_enter(&log_sys->mutex);
+	log_group_read_log_seg(LOG_RECOVER, log_bmp_sys->read_buf,
+			       group, block_start_lsn, block_end_lsn);
+	mutex_exit(&log_sys->mutex);
+
+	while (log_block < log_block_end
+	       && log_bmp_sys->next_parse_lsn < log_bmp_sys->end_lsn) {
+
+		/* How many bytes of log data should we skip in the current log
+		block.  Skipping is necessary because we round down the next
+		parse LSN thus it is possible to read the already-processed log
+		data many times */
+		ulint skip_already_parsed_len = 0;
+
+		if (!log_online_is_valid_log_seg(log_block)) {
+			break;
+		}
+
+		if ((block_start_lsn <= log_bmp_sys->next_parse_lsn)
+		    && (block_start_lsn + OS_FILE_LOG_BLOCK_SIZE
+			> log_bmp_sys->next_parse_lsn)) {
+
+			/* The next parse LSN is inside the current block, skip
+			data preceding it. */
+			skip_already_parsed_len
+				= log_bmp_sys->next_parse_lsn
+				- block_start_lsn;
+		}
+		else {
+
+			/* If the next parse LSN is not inside the current
+			block, then the only option is that we have processed
+			ahead already. */
+			ut_a(block_start_lsn > log_bmp_sys->next_parse_lsn);
+		}
+
+		/* TODO: merge the copying to the parse buf code with
+		skip_already_len calculations */
+		log_online_parse_redo_log_block(log_block,
+						skip_already_parsed_len);
+
+		log_block += OS_FILE_LOG_BLOCK_SIZE;
+		block_start_lsn += OS_FILE_LOG_BLOCK_SIZE;
+	}
+
+	return;
+}
+
+/*********************************************************************//**
+Read and parse the redo log in a given group in FOLLOW_SCAN_SIZE-sized
+chunks and updates the modified page bitmap. */
+static
+void
+log_online_follow_log_group(
+/*========================*/
+	log_group_t*	group,		/*!< in: the log group to use */
+	ib_uint64_t	contiguous_lsn)	/*!< in: the LSN of log block start
+					containing the log_parse_start_lsn */
+{
+	ib_uint64_t block_start_lsn = contiguous_lsn;
+	ib_uint64_t block_end_lsn;
+
+	log_bmp_sys->next_parse_lsn = log_bmp_sys->start_lsn;
+	log_bmp_sys->parse_buf_end = log_bmp_sys->parse_buf;
+
+	do {
+		block_end_lsn = block_start_lsn + FOLLOW_SCAN_SIZE;
+
+		log_online_follow_log_seg(group, block_start_lsn,
+					  block_end_lsn);
+
+		/* Next parse LSN can become higher than the last read LSN
+		only in the case when the read LSN falls right on the block
+		boundary, in which case next parse lsn is bumped to the actual
+		data LSN on the next (not yet read) block.  This assert is
+		slightly conservative.  */
+		ut_a(log_bmp_sys->next_parse_lsn
+		     <= block_end_lsn + LOG_BLOCK_HDR_SIZE
+		     + LOG_BLOCK_TRL_SIZE);
+
+		block_start_lsn = block_end_lsn;
+	} while (block_end_lsn < log_bmp_sys->end_lsn);
+
+	/* Assert that the last read log record is a full one */
+	ut_a(log_bmp_sys->parse_buf_end == log_bmp_sys->parse_buf);
+}
+
+/*********************************************************************//**
+Write, flush one bitmap block to disk and advance the output position if
+successful. */
+static
+void
+log_online_write_bitmap_page(
+/*=========================*/
+	const byte *block)	/*!< in: block to write */
+{
+	ibool	success;
+
+	success = os_file_write(log_bmp_sys->out_name,log_bmp_sys->out,
+				block,
+				(ulint)(log_bmp_sys->out_offset & 0xFFFFFFFF),
+				(ulint)(log_bmp_sys->out_offset << 32),
+				MODIFIED_PAGE_BLOCK_SIZE);
+	if (UNIV_UNLIKELY(!success)) {
+
+		/* The following call prints an error message */
+		os_file_get_last_error(TRUE);
+		fprintf(stderr, "InnoDB: Error: failed writing changed page "
+			"bitmap file \'%s\'\n", log_bmp_sys->out_name);
+		return;
+	}
+
+	success = os_file_flush(log_bmp_sys->out, FALSE);
+	if (UNIV_UNLIKELY(!success)) {
+
+		/* The following call prints an error message */
+		os_file_get_last_error(TRUE);
+		fprintf(stderr, "InnoDB: Error: failed flushing "
+			"changed page bitmap file \'%s\'\n",
+			log_bmp_sys->out_name);
+		return;
+	}
+
+	log_bmp_sys->out_offset += MODIFIED_PAGE_BLOCK_SIZE;
+}
+
+/*********************************************************************//**
+Append the current changed page bitmap to the bitmap file.  Clears the
+bitmap tree and recycles its nodes to the free list. */
+static
+void
+log_online_write_bitmap()
+/*=====================*/
+{
+	ib_rbt_node_t		*bmp_tree_node;
+	const ib_rbt_node_t	*last_bmp_tree_node;
+
+	bmp_tree_node = (ib_rbt_node_t *)
+		rbt_first(log_bmp_sys->modified_pages);
+	last_bmp_tree_node = rbt_last(log_bmp_sys->modified_pages);
+
+	while (bmp_tree_node) {
+
+		byte *page = rbt_value(byte, bmp_tree_node);
+
+		if (bmp_tree_node == last_bmp_tree_node) {
+			mach_write_to_4(page + MODIFIED_PAGE_IS_LAST_BLOCK, 1);
+		}
+
+		mach_write_ull(page + MODIFIED_PAGE_START_LSN,
+			       log_bmp_sys->start_lsn);
+		mach_write_ull(page + MODIFIED_PAGE_END_LSN,
+			       log_bmp_sys->end_lsn);
+		mach_write_to_4(page + MODIFIED_PAGE_BLOCK_CHECKSUM,
+				log_online_calc_checksum(page));
+
+		log_online_write_bitmap_page(page);
+
+		bmp_tree_node->left = log_bmp_sys->page_free_list;
+		log_bmp_sys->page_free_list = bmp_tree_node;
+
+		bmp_tree_node = (ib_rbt_node_t*)
+			rbt_next(log_bmp_sys->modified_pages, bmp_tree_node);
+	}
+
+	rbt_reset(log_bmp_sys->modified_pages);
+}
+
+/*********************************************************************//**
+Read and parse the redo log up to last checkpoint LSN to build the changed
+page bitmap which is then written to disk.  */
+UNIV_INTERN
+void
+log_online_follow_redo_log()
+/*========================*/
+{
+	ib_uint64_t	contiguous_start_lsn;
+	log_group_t*	group;
+
+	/* Grab the LSN of the last checkpoint, we will parse up to it */
+	mutex_enter(&(log_sys->mutex));
+	log_bmp_sys->end_lsn = log_sys->last_checkpoint_lsn;
+	mutex_exit(&(log_sys->mutex));
+
+	if (log_bmp_sys->end_lsn == log_bmp_sys->start_lsn) {
+		return;
+	}
+
+	group = UT_LIST_GET_FIRST(log_sys->log_groups);
+	ut_a(group);
+
+	contiguous_start_lsn = ut_uint64_align_down(log_bmp_sys->start_lsn,
+						    OS_FILE_LOG_BLOCK_SIZE);
+
+	while (group) {
+		log_online_follow_log_group(group, contiguous_start_lsn);
+		group = UT_LIST_GET_NEXT(log_groups, group);
+	}
+
+	/* A crash injection site that ensures last checkpoint LSN > last
+	tracked LSN, so that LSN tracking for this interval is tested. */
+	DBUG_EXECUTE_IF("crash_before_bitmap_write", DBUG_SUICIDE(););
+
+	log_online_write_bitmap();
+	log_bmp_sys->start_lsn = log_bmp_sys->end_lsn;
+	log_set_tracked_lsn(log_bmp_sys->start_lsn);
+}
+
+/*********************************************************************//**
+Initializes log bitmap iterator.
+@return TRUE if the iterator is initialized OK, FALSE otherwise. */
+UNIV_INTERN
+ibool
+log_online_bitmap_iterator_init(
+/*============================*/
+	log_bitmap_iterator_t *i) /*!<in/out:  iterator */
+{
+	ibool	success;
+
+	ut_a(i);
+	ut_snprintf(i->in_name, FN_REFLEN, "%s%s%d", srv_data_home,
+		    modified_page_stem, 1);
+	i->in_offset = 0;
+	/*
+	  Set up bit offset out of the reasonable limit
+	  to intiate reading block from file in
+	  log_online_bitmap_iterator_next()
+	*/
+	i->bit_offset = MODIFIED_PAGE_BLOCK_BITMAP_LEN;
+	i->in =
+		os_file_create_simple_no_error_handling(
+							i->in_name,
+							OS_FILE_OPEN,
+							OS_FILE_READ_ONLY,
+							&success);
+
+	if (!success) {
+		/* The following call prints an error message */
+		os_file_get_last_error(TRUE);
+		fprintf(stderr,
+			"InnoDB: Error: Cannot open \'%s\'\n",
+			i->in_name);
+		return FALSE;
+	}
+
+	i->page = ut_malloc(MODIFIED_PAGE_BLOCK_SIZE);
+
+	i->start_lsn = i->end_lsn = 0;
+	i->space_id = 0;
+	i->first_page_id = 0;
+	i->changed = FALSE;
+
+	return TRUE;
+}
+
+/*********************************************************************//**
+Releases log bitmap iterator. */
+UNIV_INTERN
+void
+log_online_bitmap_iterator_release(
+/*===============================*/
+	log_bitmap_iterator_t *i) /*!<in/out:  iterator */
+{
+	ut_a(i);
+	os_file_close(i->in);
+	ut_free(i->page);
+}
+
+/*********************************************************************//**
+Iterates through bits of saved bitmap blocks.
+Sequentially reads blocks from bitmap file(s) and interates through
+their bits. Ignores blocks with wrong checksum.
+@return TRUE if iteration is successful, FALSE if all bits are iterated. */
+UNIV_INTERN
+ibool
+log_online_bitmap_iterator_next(
+/*============================*/
+	log_bitmap_iterator_t *i) /*!<in/out: iterator */
+{
+	ulint	offset_low;
+	ulint	offset_high;
+	ulint	size_low;
+	ulint	size_high;
+	ulint	checksum	= 0;
+	ulint	actual_checksum	= !checksum;
+
+	ibool	success;
+
+	ut_a(i);
+
+	if (i->bit_offset < MODIFIED_PAGE_BLOCK_BITMAP_LEN)
+	{
+		++i->bit_offset;
+		i->changed =
+			IS_BIT_SET(i->page + MODIFIED_PAGE_BLOCK_BITMAP,
+				   i->bit_offset);
+		return TRUE;
+	}
+
+	while (checksum != actual_checksum)
+	{
+		success = os_file_get_size(i->in,
+					   &size_low,
+					   &size_high);
+		if (!success) {
+			os_file_get_last_error(TRUE);
+			fprintf(stderr,
+				"InnoDB: Warning: can't get size of "
+				"page bitmap file \'%s\'\n",
+				i->in_name);
+			return FALSE;
+		}
+
+		if (i->in_offset >=
+		    (ib_uint64_t)(size_low) +
+		    ((ib_uint64_t)(size_high) << 32))
+			return FALSE;
+
+		offset_high = (ulint)(i->in_offset >> 32);
+		offset_low = (ulint)(i->in_offset & 0xFFFFFFFF);
+
+		success = os_file_read(
+				       i->in,
+				       i->page,
+				       offset_low,
+				       offset_high,
+				       MODIFIED_PAGE_BLOCK_SIZE);
+
+		if (!success) {
+			os_file_get_last_error(TRUE);
+			fprintf(stderr,
+				"InnoDB: Warning: failed reading "
+				"changed page bitmap file \'%s\'\n",
+				i->in_name);
+			return FALSE;
+		}
+
+		checksum = mach_read_from_4(
+			i->page + MODIFIED_PAGE_BLOCK_CHECKSUM);
+
+		actual_checksum = log_online_calc_checksum(i->page);
+
+		i->in_offset += MODIFIED_PAGE_BLOCK_SIZE;
+	}
+
+	i->start_lsn =
+		mach_read_ull(i->page + MODIFIED_PAGE_START_LSN);
+	i->end_lsn =
+		mach_read_ull(i->page + MODIFIED_PAGE_END_LSN);
+	i->space_id =
+		mach_read_from_4(i->page + MODIFIED_PAGE_SPACE_ID);
+	i->first_page_id =
+		mach_read_from_4(i->page + MODIFIED_PAGE_1ST_PAGE_ID);
+	i->bit_offset =
+		0;
+	i->changed  =
+		IS_BIT_SET(i->page + MODIFIED_PAGE_BLOCK_BITMAP,
+			   i->bit_offset);
+
+	return TRUE;
+}
+
diff --git a/storage/xtradb/log/log0recv.c b/storage/xtradb/log/log0recv.c
index fae7fbd0da0..33ce5443c49 100644
--- a/storage/xtradb/log/log0recv.c
+++ b/storage/xtradb/log/log0recv.c
@@ -840,7 +840,7 @@ block.  We also accept a log block in the old format before
 InnoDB-3.23.52 where the checksum field contains the log block number.
 @return TRUE if ok, or if the log block may be in the format of InnoDB
 version predating 3.23.52 */
-static
+UNIV_INTERN
 ibool
 log_block_checksum_is_ok_or_old_format(
 /*===================================*/
@@ -2084,7 +2084,7 @@ skip_this_recv_addr:
 /*******************************************************************//**
 Tries to parse a single log record and returns its length.
 @return	length of the record, or 0 if the record was not complete */
-static
+UNIV_INTERN
 ulint
 recv_parse_log_rec(
 /*===============*/
@@ -2155,7 +2155,7 @@ recv_parse_log_rec(
 
 /*******************************************************//**
 Calculates the new value for lsn when more data is added to the log. */
-static
+UNIV_INTERN
 ib_uint64_t
 recv_calc_lsn_on_data_add(
 /*======================*/
@@ -3542,6 +3542,8 @@ recv_reset_logs(
 	log_sys->archived_lsn = log_sys->lsn;
 #endif /* UNIV_LOG_ARCHIVE */
 
+	log_sys->tracked_lsn = log_sys->lsn;
+
 	log_block_init(log_sys->buf, log_sys->lsn);
 	log_block_set_first_rec_group(log_sys->buf, LOG_BLOCK_HDR_SIZE);
 
diff --git a/storage/xtradb/os/os0file.c b/storage/xtradb/os/os0file.c
index ef048188353..2fde176a93c 100644
--- a/storage/xtradb/os/os0file.c
+++ b/storage/xtradb/os/os0file.c
@@ -1939,6 +1939,25 @@ os_file_set_eof(
 #endif /* __WIN__ */
 }
 
+/***********************************************************************//**
+Truncates a file at the specified position.
+@return TRUE if success */
+UNIV_INTERN
+ibool
+os_file_set_eof_at(
+	os_file_t	file, /*!< in: handle to a file */
+	ib_uint64_t	new_len)/*!< in: new file length */
+{
+#ifdef __WIN__
+	/* TODO: untested! */
+	return(!_chsize_s(file, new_len));
+#else
+	/* TODO: works only with -D_FILE_OFFSET_BITS=64 ? */
+	return(!ftruncate(file, new_len));
+#endif
+}
+
+
 #ifndef __WIN__
 /***********************************************************************//**
 Wrapper to fsync(2) that retries the call on some errors.
diff --git a/storage/xtradb/page/page0cur.c b/storage/xtradb/page/page0cur.c
index 88ee6bc09a9..00fb55d169c 100644
--- a/storage/xtradb/page/page0cur.c
+++ b/storage/xtradb/page/page0cur.c
@@ -1902,6 +1902,7 @@ page_cur_delete_rec(
 
 	/* Save to local variables some data associated with current_rec */
 	cur_slot_no = page_dir_find_owner_slot(current_rec);
+	ut_ad(cur_slot_no > 0);
 	cur_dir_slot = page_dir_get_nth_slot(page, cur_slot_no);
 	cur_n_owned = page_dir_slot_get_n_owned(cur_dir_slot);
 
diff --git a/storage/xtradb/page/page0page.c b/storage/xtradb/page/page0page.c
index 7b72a22fd1c..ba43dae3858 100644
--- a/storage/xtradb/page/page0page.c
+++ b/storage/xtradb/page/page0page.c
@@ -780,17 +780,23 @@ page_copy_rec_list_start(
 	if (UNIV_LIKELY_NULL(new_page_zip)) {
 		mtr_set_log_mode(mtr, log_mode);
 
+		DBUG_EXECUTE_IF("page_copy_rec_list_start_compress_fail",
+				goto zip_reorganize;);
+
 		if (UNIV_UNLIKELY
 		    (!page_zip_compress(new_page_zip, new_page, index, mtr))) {
+			ulint	ret_pos;
+#ifndef DBUG_OFF
+zip_reorganize:
+#endif /* DBUG_OFF */
 			/* Before trying to reorganize the page,
 			store the number of preceding records on the page. */
-			ulint	ret_pos
-				= page_rec_get_n_recs_before(ret);
+			ret_pos = page_rec_get_n_recs_before(ret);
 			/* Before copying, "ret" was the predecessor
 			of the predefined supremum record.  If it was
 			the predefined infimum record, then it would
-			still be the infimum.  Thus, the assertion
-			ut_a(ret_pos > 0) would fail here. */
+			still be the infimum, and we would have
+			ret_pos == 0. */
 
 			if (UNIV_UNLIKELY
 			    (!page_zip_reorganize(new_block, index, mtr))) {
@@ -806,15 +812,10 @@ page_copy_rec_list_start(
 				btr_blob_dbg_add(new_page, index,
 						 "copy_start_reorg_fail");
 				return(NULL);
-			} else {
-				/* The page was reorganized:
-				Seek to ret_pos. */
-				ret = new_page + PAGE_NEW_INFIMUM;
-
-				do {
-					ret = rec_get_next_ptr(ret, TRUE);
-				} while (--ret_pos);
 			}
+
+			/* The page was reorganized: Seek to ret_pos. */
+			ret = page_rec_get_nth(new_page, ret_pos);
 		}
 	}
 
@@ -1050,6 +1051,7 @@ page_delete_rec_list_end(
 
 		n_owned = rec_get_n_owned_new(rec2) - count;
 		slot_index = page_dir_find_owner_slot(rec2);
+		ut_ad(slot_index > 0);
 		slot = page_dir_get_nth_slot(page, slot_index);
 	} else {
 		rec_t*	rec2	= rec;
@@ -1065,6 +1067,7 @@ page_delete_rec_list_end(
 
 		n_owned = rec_get_n_owned_old(rec2) - count;
 		slot_index = page_dir_find_owner_slot(rec2);
+		ut_ad(slot_index > 0);
 		slot = page_dir_get_nth_slot(page, slot_index);
 	}
 
@@ -1491,6 +1494,10 @@ page_rec_get_nth_const(
 	ulint			n_owned;
 	const rec_t*		rec;
 
+	if (nth == 0) {
+		return(page_get_infimum_rec(page));
+	}
+
 	ut_ad(nth < UNIV_PAGE_SIZE / (REC_N_NEW_EXTRA_BYTES + 1));
 
 	for (i = 0;; i++) {
@@ -1584,7 +1591,7 @@ page_rec_get_n_recs_before(
 	n--;
 
 	ut_ad(n >= 0);
-	ut_ad(n < UNIV_PAGE_SIZE / (REC_N_NEW_EXTRA_BYTES + 1));
+	ut_ad((ulint) n < UNIV_PAGE_SIZE / (REC_N_NEW_EXTRA_BYTES + 1));
 
 	return((ulint) n);
 }
diff --git a/storage/xtradb/plug.in b/storage/xtradb/plug.in
index 1846543a81c..3fadacce576 100644
--- a/storage/xtradb/plug.in
+++ b/storage/xtradb/plug.in
@@ -93,7 +93,6 @@ MYSQL_PLUGIN_ACTIONS(xtradb,  [
 	if (res != 10 || c != 123) {
 	  return(1);
 	}
-
 	return(0);
       }
     ],
@@ -107,6 +106,42 @@ MYSQL_PLUGIN_ACTIONS(xtradb,  [
     ]
   )
 
+  AC_MSG_CHECKING(whether GCC 64-bit atomic builtins are available)
+  # either define HAVE_IB_GCC_ATOMIC_BUILTINS_64 or not
+  AC_TRY_RUN(
+    [
+      #include <stdint.h>
+      int main()
+      {
+        int64_t x, y, res;
+
+	x = 10;
+	y = 123;
+	res = __sync_bool_compare_and_swap(&x, x, y);
+	if (!res || x != y) {
+	  return(1);
+	}
+
+	x = 10;
+	y = 123;
+	res = __sync_add_and_fetch(&x, y);
+	if (res != 123 + 10 || x != 123 + 10) {
+	  return(1);
+	}
+
+	return(0);
+      }
+    ],
+    [
+      AC_DEFINE([HAVE_IB_GCC_ATOMIC_BUILTINS_64], [1],
+                [GCC 64-bit atomic builtins are available])
+      AC_MSG_RESULT(yes)
+    ],
+    [
+      AC_MSG_RESULT(no)
+    ]
+  )
+
   AC_MSG_CHECKING(whether pthread_t can be used by GCC atomic builtins)
   # either define HAVE_IB_ATOMIC_PTHREAD_T_GCC or not
   AC_TRY_RUN(
diff --git a/storage/xtradb/row/row0ins.c b/storage/xtradb/row/row0ins.c
index d6f486e5c1b..4d005b6c7b5 100644
--- a/storage/xtradb/row/row0ins.c
+++ b/storage/xtradb/row/row0ins.c
@@ -1296,7 +1296,8 @@ run_again:
 		check_index = foreign->foreign_index;
 	}
 
-	if (check_table == NULL || check_table->ibd_file_missing) {
+	if (check_table == NULL || check_table->ibd_file_missing
+	    || check_index == NULL) {
 		if (check_ref) {
 			FILE*	ef = dict_foreign_err_file;
 
@@ -1331,9 +1332,6 @@ run_again:
 		goto exit_func;
 	}
 
-	ut_a(check_table);
-	ut_a(check_index);
-
 	if (check_table != table) {
 		/* We already have a LOCK_IX on table, but not necessarily
 		on check_table */
@@ -2194,9 +2192,16 @@ row_ins_index_entry_low(
 
 				goto function_exit;
 			}
-			err = btr_cur_pessimistic_insert(
+
+			err = btr_cur_optimistic_insert(
 				0, &cursor, entry, &insert_rec, &big_rec,
 				n_ext, thr, &mtr);
+
+			if (err == DB_FAIL) {
+				err = btr_cur_pessimistic_insert(
+					0, &cursor, entry, &insert_rec,
+					&big_rec, n_ext, thr, &mtr);
+			}
 		}
 	}
 
diff --git a/storage/xtradb/row/row0merge.c b/storage/xtradb/row/row0merge.c
index efff92aa361..d09cd267fa8 100644
--- a/storage/xtradb/row/row0merge.c
+++ b/storage/xtradb/row/row0merge.c
@@ -1214,11 +1214,25 @@ row_merge_read_clustered_index(
 				goto err_exit;
 			}
 
+			/* Store the cursor position on the last user
+			record on the page. */
+			btr_pcur_move_to_prev_on_page(&pcur);
+			/* Leaf pages must never be empty, unless
+			this is the only page in the index tree. */
+			ut_ad(btr_pcur_is_on_user_rec(&pcur)
+			      || buf_block_get_page_no(
+				      btr_pcur_get_block(&pcur))
+			      == clust_index->page);
+
 			btr_pcur_store_position(&pcur, &mtr);
 			mtr_commit(&mtr);
 			mtr_start(&mtr);
+			/* Restore position on the record, or its
+			predecessor if the record was purged
+			meanwhile. */
 			btr_pcur_restore_position(BTR_SEARCH_LEAF,
 						  &pcur, &mtr);
+			/* Move to the successor of the original record. */
 			has_next = btr_pcur_move_to_next_user_rec(&pcur, &mtr);
 		}
 
diff --git a/storage/xtradb/row/row0mysql.c b/storage/xtradb/row/row0mysql.c
index 07cb1578024..c56711cadc4 100644
--- a/storage/xtradb/row/row0mysql.c
+++ b/storage/xtradb/row/row0mysql.c
@@ -3636,7 +3636,7 @@ row_mysql_drop_temp_tables(void)
 		btr_pcur_store_position(&pcur, &mtr);
 		btr_pcur_commit_specify_mtr(&pcur, &mtr);
 
-		table = dict_load_table(table_name);
+		table = dict_table_get_low(table_name);
 
 		if (table) {
 			row_drop_table_for_mysql(table_name, trx, FALSE);
diff --git a/storage/xtradb/row/row0vers.c b/storage/xtradb/row/row0vers.c
index 8a7bb842293..9aeaa2db6c0 100644
--- a/storage/xtradb/row/row0vers.c
+++ b/storage/xtradb/row/row0vers.c
@@ -208,18 +208,6 @@ row_vers_impl_x_locked_off_kernel(
 		vers_del = rec_get_deleted_flag(prev_version, comp);
 		prev_trx_id = row_get_rec_trx_id(prev_version, clust_index,
 						 clust_offsets);
-
-		/* If the trx_id and prev_trx_id are different and if
-		the prev_version is marked deleted then the
-		prev_trx_id must have already committed for the trx_id
-		to be able to modify the row. Therefore, prev_trx_id
-		cannot hold any implicit lock. */
-		if (vers_del && 0 != ut_dulint_cmp(trx_id, prev_trx_id)) {
-
-			mutex_enter(&kernel_mutex);
-			break;
-		}
-
 		/* The stack of versions is locked by mtr.  Thus, it
 		is safe to fetch the prefixes for externally stored
 		columns. */
diff --git a/storage/xtradb/scripts/install_innodb_plugins.sql b/storage/xtradb/scripts/install_innodb_plugins.sql
index 3fdb8f11e22..8833d9c023c 100644
--- a/storage/xtradb/scripts/install_innodb_plugins.sql
+++ b/storage/xtradb/scripts/install_innodb_plugins.sql
@@ -7,3 +7,6 @@ INSTALL PLUGIN innodb_cmp SONAME 'ha_innodb.so';
 INSTALL PLUGIN innodb_cmp_reset SONAME 'ha_innodb.so';
 INSTALL PLUGIN innodb_cmpmem SONAME 'ha_innodb.so';
 INSTALL PLUGIN innodb_cmpmem_reset SONAME 'ha_innodb.so';
+INSTALL PLUGIN innodb_buffer_pool_stats SONAME 'ha_innodb.so';
+INSTALL PLUGIN innodb_buffer_page SONAME 'ha_innodb.so';
+INSTALL PLUGIN innodb_buffer_page_lru SONAME 'ha_innodb.so';
diff --git a/storage/xtradb/scripts/install_innodb_plugins_win.sql b/storage/xtradb/scripts/install_innodb_plugins_win.sql
index 8c94b4e240d..023b13132c3 100644
--- a/storage/xtradb/scripts/install_innodb_plugins_win.sql
+++ b/storage/xtradb/scripts/install_innodb_plugins_win.sql
@@ -7,3 +7,6 @@ INSTALL PLUGIN innodb_cmp SONAME 'ha_innodb.dll';
 INSTALL PLUGIN innodb_cmp_reset SONAME 'ha_innodb.dll';

 INSTALL PLUGIN innodb_cmpmem SONAME 'ha_innodb.dll';

 INSTALL PLUGIN innodb_cmpmem_reset SONAME 'ha_innodb.dll';

+INSTALL PLUGIN innodb_buffer_pool_stats SONAME 'ha_innodb.dll';

+INSTALL PLUGIN innodb_buffer_page SONAME 'ha_innodb.dll';

+INSTALL PLUGIN innodb_buffer_page_lru SONAME 'ha_innodb.dll';

diff --git a/storage/xtradb/srv/srv0srv.c b/storage/xtradb/srv/srv0srv.c
index 176b063d147..f01ad40de41 100644
--- a/storage/xtradb/srv/srv0srv.c
+++ b/storage/xtradb/srv/srv0srv.c
@@ -69,6 +69,7 @@ Created 10/8/1995 Heikki Tuuri
 #include "thr0loc.h"
 #include "que0que.h"
 #include "srv0que.h"
+#include "log0online.h"
 #include "log0recv.h"
 #include "pars0pars.h"
 #include "usr0sess.h"
@@ -161,6 +162,10 @@ UNIV_INTERN ibool	srv_recovery_stats = FALSE;
 
 UNIV_INTERN ulint	srv_use_purge_thread = 0;
 
+UNIV_INTERN my_bool	srv_track_changed_pages = TRUE;
+
+UNIV_INTERN ulonglong	srv_changed_pages_limit = 0;
+
 /* if TRUE, then we auto-extend the last data file */
 UNIV_INTERN ibool	srv_auto_extend_last_data_file	= FALSE;
 /* if != 0, this tells the max size auto-extending may increase the
@@ -405,6 +410,9 @@ UNIV_INTERN unsigned long long	srv_stats_sample_pages = 8;
 UNIV_INTERN ulong	srv_stats_auto_update = 1;
 UNIV_INTERN ulint	srv_stats_update_need_lock = 1;
 UNIV_INTERN ibool	srv_use_sys_stats_table = FALSE;
+#ifdef UNIV_DEBUG
+UNIV_INTERN ulong	srv_sys_stats_root_page = 0;
+#endif
 
 UNIV_INTERN ibool	srv_use_doublewrite_buf	= TRUE;
 UNIV_INTERN ibool	srv_use_checksums = TRUE;
@@ -724,6 +732,10 @@ UNIV_INTERN os_event_t	srv_lock_timeout_thread_event;
 
 UNIV_INTERN os_event_t	srv_shutdown_event;
 
+UNIV_INTERN os_event_t	srv_checkpoint_completed_event;
+
+UNIV_INTERN os_event_t	srv_redo_log_thread_finished_event;
+
 UNIV_INTERN srv_sys_t*	srv_sys	= NULL;
 
 /* padding to prevent other memory update hotspots from residing on
@@ -1031,6 +1043,9 @@ srv_init(void)
 	srv_lock_timeout_thread_event = os_event_create(NULL);
 	srv_shutdown_event = os_event_create(NULL);
 
+	srv_checkpoint_completed_event = os_event_create(NULL);
+	srv_redo_log_thread_finished_event = os_event_create(NULL);
+
 	for (i = 0; i < SRV_MASTER + 1; i++) {
 		srv_n_threads_active[i] = 0;
 		srv_n_threads[i] = 0;
@@ -1178,7 +1193,7 @@ retry:
 static void
 srv_conc_exit_innodb_timer_based(trx_t* trx)
 {
-        (void) os_atomic_increment_lint(&srv_conc_n_threads, -1);
+	(void) os_atomic_increment_lint(&srv_conc_n_threads, -1);
 	trx->declared_to_be_inside_innodb = FALSE;
 	trx->n_tickets_to_enter_innodb = 0;
 	return;
@@ -1385,7 +1400,7 @@ srv_conc_force_enter_innodb(
 	ut_ad(srv_conc_n_threads >= 0);
 #ifdef HAVE_ATOMIC_BUILTINS
 	if (srv_thread_concurrency_timer_based) {
-                (void) os_atomic_increment_lint(&srv_conc_n_threads, 1);
+		(void) os_atomic_increment_lint(&srv_conc_n_threads, 1);
 		trx->declared_to_be_inside_innodb = TRUE;
 		trx->n_tickets_to_enter_innodb = 1;
 		return;
@@ -2674,6 +2689,41 @@ exit_func:
 	OS_THREAD_DUMMY_RETURN;
 }
 
+/******************************************************************//**
+A thread which follows the redo log and outputs the changed page bitmap.
+@return a dummy value */
+UNIV_INTERN
+os_thread_ret_t
+srv_redo_log_follow_thread(
+/*=======================*/
+	void*	arg __attribute__((unused)))	/*!< in: a dummy parameter
+						     required by
+						     os_thread_create */
+{
+#ifdef UNIV_DEBUG_THREAD_CREATION
+	fprintf(stderr, "Redo log follower thread starts, id %lu\n",
+		os_thread_pf(os_thread_get_curr_id()));
+#endif
+	my_thread_init();
+
+	do {
+		os_event_wait(srv_checkpoint_completed_event);
+		os_event_reset(srv_checkpoint_completed_event);
+
+		log_online_follow_redo_log();
+
+	} while (srv_shutdown_state < SRV_SHUTDOWN_LAST_PHASE);
+
+	log_online_read_shutdown();
+	os_event_set(srv_redo_log_thread_finished_event);
+
+	my_thread_end();
+	os_thread_exit(NULL);
+
+	OS_THREAD_DUMMY_RETURN;
+}
+
+
 /*******************************************************************//**
 Tells the InnoDB server that there has been activity in the database
 and wakes up the master thread if it is suspended (not sleeping). Used
diff --git a/storage/xtradb/srv/srv0start.c b/storage/xtradb/srv/srv0start.c
index ba4328c80e1..0c33b2208f2 100644
--- a/storage/xtradb/srv/srv0start.c
+++ b/storage/xtradb/srv/srv0start.c
@@ -51,6 +51,7 @@ Created 2/16/1996 Heikki Tuuri
 #include "rem0rec.h"
 #include "mtr0mtr.h"
 #include "log0log.h"
+#include "log0online.h"
 #include "log0recv.h"
 #include "page0page.h"
 #include "page0cur.h"
@@ -127,9 +128,9 @@ static mutex_t		ios_mutex;
 static ulint		ios;
 
 /** io_handler_thread parameters for thread identification */
-static ulint		n[SRV_MAX_N_IO_THREADS + 7 + UNIV_MAX_PARALLELISM];
+static ulint		n[SRV_MAX_N_IO_THREADS + 8 + UNIV_MAX_PARALLELISM];
 /** io_handler_thread identifiers */
-static os_thread_id_t	thread_ids[SRV_MAX_N_IO_THREADS + 7 + UNIV_MAX_PARALLELISM];
+static os_thread_id_t	thread_ids[SRV_MAX_N_IO_THREADS + 8 + UNIV_MAX_PARALLELISM];
 
 /** We use this mutex to test the return value of pthread_mutex_trylock
    on successful locking. HP-UX does NOT return 0, though Linux et al do. */
@@ -1823,6 +1824,12 @@ innobase_start_or_create_for_mysql(void)
 
 			trx_sys_dummy_create(TRX_DOUBLEWRITE_SPACE);
 		}
+
+		if (UNIV_UNLIKELY(!dict_verify_xtradb_sys_stats())) {
+			fprintf(stderr, "InnoDB: Warning: "
+				"SYS_STATS table corrupted, recreating\n");
+			dict_recreate_xtradb_sys_stats();
+		}
 	}
 
 	if (!create_new_db && sum_of_new_sizes > 0) {
@@ -1885,6 +1892,19 @@ innobase_start_or_create_for_mysql(void)
 	if (srv_auto_lru_dump && srv_blocking_lru_restore)
 		buf_LRU_file_restore();
 
+	if (srv_track_changed_pages) {
+
+		/* Initialize the log tracking subsystem here to block
+		server startup until it's completed due to the potential
+		need to re-read previous server run's log. */
+		log_online_read_init();
+
+		/* Create the thread that follows the redo log to output the
+		changed page bitmap */
+		os_thread_create(&srv_redo_log_follow_thread, NULL,
+				 thread_ids + 5 + SRV_MAX_N_IO_THREADS);
+	}
+
 	srv_is_being_started = FALSE;
 
 	if (trx_doublewrite == NULL) {
diff --git a/storage/xtradb/sync/sync0arr.c b/storage/xtradb/sync/sync0arr.c
index 4e788b4a968..35385507e40 100644
--- a/storage/xtradb/sync/sync0arr.c
+++ b/storage/xtradb/sync/sync0arr.c
@@ -926,6 +926,11 @@ sync_array_print_long_waits(
 	ibool		fatal = FALSE;
 	double		longest_diff = 0;
 
+	/* For huge tables, skip the check during CHECK TABLE etc... */
+	if (fatal_timeout > SRV_SEMAPHORE_WAIT_EXTENSION) {
+		return(FALSE);
+	}
+
 	for (i = 0; i < sync_primary_wait_array->n_cells; i++) {
 
 		double	diff;
diff --git a/storage/xtradb/ut/ut0rbt.c b/storage/xtradb/ut/ut0rbt.c
index 3d7bc91e714..643312ab79d 100644
--- a/storage/xtradb/ut/ut0rbt.c
+++ b/storage/xtradb/ut/ut0rbt.c
@@ -48,7 +48,6 @@ red-black properties:
 #endif
 
 #define ROOT(t)		(t->root->left)
-#define	SIZEOF_NODE(t)	((sizeof(ib_rbt_node_t) + t->sizeof_value) - 1)
 
 /****************************************************************//**
 Print out the sub-tree recursively. */
@@ -829,6 +828,21 @@ rbt_add_node(
 	node = (ib_rbt_node_t*) ut_malloc(SIZEOF_NODE(tree));
 
 	memcpy(node->value, value, tree->sizeof_value);
+	return(rbt_add_preallocated_node(tree, parent, node));
+}
+
+/****************************************************************//**
+Add a new caller-provided node to tree at the specified position.
+The node must have its key fields initialized correctly.
+@return added node */
+UNIV_INTERN
+const ib_rbt_node_t*
+rbt_add_preallocated_node(
+/*======================*/
+	ib_rbt_t*	tree,		/*!< in: rb tree */
+	ib_rbt_bound_t*	parent,		/*!< in: parent */
+	ib_rbt_node_t*	node)		/*!< in: node */
+{
 	node->parent = node->left = node->right = tree->nil;
 
 	/* If tree is empty */
@@ -1137,7 +1151,17 @@ rbt_clear(
 	ib_rbt_t*	tree)		/*!< in: rb tree */
 {
 	rbt_free_node(ROOT(tree), tree->nil);
+	rbt_reset(tree);
+}
 
+/****************************************************************//**
+Clear the tree without deleting and freeing its nodes. */
+UNIV_INTERN
+void
+rbt_reset(
+/*======*/
+	ib_rbt_t*	tree)		/*!< in: rb tree */
+{
 	tree->n_nodes = 0;
 	tree->root->left = tree->root->right = tree->nil;
 }
diff --git a/support-files/mysql.spec.sh b/support-files/mysql.spec.sh
index c3cdad5d418..751c8a7a06b 100644
--- a/support-files/mysql.spec.sh
+++ b/support-files/mysql.spec.sh
@@ -390,7 +390,7 @@ CXXFLAGS=${CXXFLAGS:-$RPM_OPT_FLAGS -felide-constructors -fno-exceptions -fno-rt
 # Evaluate current setting of $DEBUG
 if [ $DEBUG -gt 0 ] ; then
 	OPT_COMMENT='--with-comment="%{debug_comment}"'
-	OPT_DEBUG='--with-debug'
+	OPT_DEBUG='--with-debug --enable-mysql-maintainer-mode=no'
 	CFLAGS=`echo   " $CFLAGS "   | \
 	    sed -e 's/ -O[0-9]* / /' -e 's/ -unroll2 / /' -e 's/ -ip / /' \
 	        -e 's/^ //' -e 's/ $//'`
@@ -1226,6 +1226,11 @@ fi
 # merging BK trees)
 ##############################################################################
 %changelog
+* Tue Sep 11 2012 Joerg Bruehe <joerg.bruehe@oracle.com>
+
+- Disable "maintainer mode" in debug builds, there is a cast ulonglong -> int
+  in the sources (since 2007) that would cause builds to fail.
+
 * Wed Sep 14 2011 Joerg Bruehe <joerg.bruehe@oracle.com>
 
 - Let the RPM capabilities ("obsoletes" etc) ensure that an upgrade may replace
diff --git a/vio/viosslfactories.c b/vio/viosslfactories.c
index 945e288a799..037c34802e9 100644
--- a/vio/viosslfactories.c
+++ b/vio/viosslfactories.c
@@ -101,47 +101,51 @@ vio_set_cert_stuff(SSL_CTX *ctx, const char *cert_file, const char *key_file,
   DBUG_ENTER("vio_set_cert_stuff");
   DBUG_PRINT("enter", ("ctx: 0x%lx  cert_file: %s  key_file: %s",
 		       (long) ctx, cert_file, key_file));
-  if (cert_file)
-  {
-    if (SSL_CTX_use_certificate_file(ctx, cert_file, SSL_FILETYPE_PEM) <= 0)
-    {
-      *error= SSL_INITERR_CERT;
-      DBUG_PRINT("error",("%s from file '%s'", sslGetErrString(*error), cert_file));
-      DBUG_EXECUTE("error", ERR_print_errors_fp(DBUG_FILE););
-      fprintf(stderr, "SSL error: %s from '%s'\n", sslGetErrString(*error),
-              cert_file);
-      fflush(stderr);
-      DBUG_RETURN(1);
-    }
 
-    if (!key_file)
-      key_file= cert_file;
+  if (!cert_file &&  key_file)
+    cert_file= key_file;
+  
+  if (!key_file &&  cert_file)
+    key_file= cert_file;
 
-    if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0)
-    {
-      *error= SSL_INITERR_KEY;
-      DBUG_PRINT("error", ("%s from file '%s'", sslGetErrString(*error), key_file));
-      DBUG_EXECUTE("error", ERR_print_errors_fp(DBUG_FILE););
-      fprintf(stderr, "SSL error: %s from '%s'\n", sslGetErrString(*error),
-              key_file);
-      fflush(stderr);
-      DBUG_RETURN(1);
-    }
+  if (cert_file &&
+      SSL_CTX_use_certificate_file(ctx, cert_file, SSL_FILETYPE_PEM) <= 0)
+  {
+    *error= SSL_INITERR_CERT;
+    DBUG_PRINT("error",("%s from file '%s'", sslGetErrString(*error), cert_file));
+    DBUG_EXECUTE("error", ERR_print_errors_fp(DBUG_FILE););
+    fprintf(stderr, "SSL error: %s from '%s'\n", sslGetErrString(*error),
+            cert_file);
+    fflush(stderr);
+    DBUG_RETURN(1);
+  }
 
-    /*
-      If we are using DSA, we can copy the parameters from the private key
-      Now we know that a key and cert have been set against the SSL context
-    */
-    if (!SSL_CTX_check_private_key(ctx))
-    {
-      *error= SSL_INITERR_NOMATCH;
-      DBUG_PRINT("error", ("%s",sslGetErrString(*error)));
-      DBUG_EXECUTE("error", ERR_print_errors_fp(DBUG_FILE););
-      fprintf(stderr, "SSL error: %s\n", sslGetErrString(*error));
-      fflush(stderr);
-      DBUG_RETURN(1);
-    }
+  if (key_file &&
+      SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0)
+  {
+    *error= SSL_INITERR_KEY;
+    DBUG_PRINT("error", ("%s from file '%s'", sslGetErrString(*error), key_file));
+    DBUG_EXECUTE("error", ERR_print_errors_fp(DBUG_FILE););
+    fprintf(stderr, "SSL error: %s from '%s'\n", sslGetErrString(*error),
+            key_file);
+    fflush(stderr);
+    DBUG_RETURN(1);
+  }
+
+  /*
+    If we are using DSA, we can copy the parameters from the private key
+    Now we know that a key and cert have been set against the SSL context
+  */
+  if (cert_file && !SSL_CTX_check_private_key(ctx))
+  {
+    *error= SSL_INITERR_NOMATCH;
+    DBUG_PRINT("error", ("%s",sslGetErrString(*error)));
+    DBUG_EXECUTE("error", ERR_print_errors_fp(DBUG_FILE););
+    fprintf(stderr, "SSL error: %s\n", sslGetErrString(*error));
+    fflush(stderr);
+    DBUG_RETURN(1);
   }
+
   DBUG_RETURN(0);
 }
 
@@ -253,6 +257,20 @@ new_VioSSLFd(const char *key_file, const char *cert_file,
   if (SSL_CTX_load_verify_locations(ssl_fd->ssl_context, ca_file, ca_path) == 0)
   {
     DBUG_PRINT("warning", ("SSL_CTX_load_verify_locations failed"));
+    if (ca_file || ca_path)
+    {
+      /* fail only if ca file or ca path were supplied and looking into 
+         them fails. */
+      *error= SSL_INITERR_BAD_PATHS;
+      DBUG_PRINT("error", ("SSL_CTX_load_verify_locations failed : %s", 
+                 sslGetErrString(*error)));
+      report_errors();
+      SSL_CTX_free(ssl_fd->ssl_context);
+      my_free((void*)ssl_fd,MYF(0));
+      DBUG_RETURN(0);
+    }
+
+    /* otherwise go use the defaults */
     if (SSL_CTX_set_default_verify_paths(ssl_fd->ssl_context) == 0)
     {
       *error= SSL_INITERR_BAD_PATHS;