Added --log-basename to mysqld to allow one to set the prefix for all logs with one command

Changed test suite to use --log-basename (to get the code tested)
Added --sync-sys=1 to test suite to speed it up.
Better error messages if something goes wrong with mysql_install_db


mysql-test/Makefile.am:
  Removed not existing directory
mysql-test/lib/My/ConfigFactory.pm:
  Use log-basename
  We had to also set 'log_error' as some test was explicitely using the old name
  Added 'sync-sys=1' to speed up test suite
mysql-test/r/variables-notembedded.result:
  Updated test results (variable relay_log is now set)
mysql-test/suite/binlog/t/binlog_delete_and_flush_index-master.opt:
  Force specific names for some log files.
mysql-test/suite/binlog/t/binlog_index-master.opt:
  Force specific names for some log files.
mysql-test/suite/binlog/t/binlog_stm_unsafe_warning-master.opt:
  Force specific names for some log files.
mysql-test/suite/binlog/t/binlog_stm_unsafe_warning.test:
  Better error message if something goes wrong
mysql-test/suite/rpl/r/rpl_flushlog_loop.result:
  Updated results
mysql-test/suite/rpl/rpl_1slave_base.cnf:
  Use --log-basename
scripts/mysql_install_db.sh:
  More information to --help
  Write url to knowledge base if something goes wrong
  Fail at once if we can't create a database directory (no reason to continue and write a screenful of not related text)
scripts/mysqld_safe.sh:
  Also allow one to use --data for --datadir (common shortening)
  Added support for --log-basename
  Fail at once if we can't create a log directory
  Fixed bug where we used a pid file name without '.pid' extension
sql/log.cc:
  Create a log file name trough my_once_alloc()  (To get it automaticly freed at exit)
sql/mysql_priv.h:
  Added new prototype
sql/mysqld.cc:
  Added support for --log-basename
  Better help for a lot of log-filename related variables.
sql/rpl_rli.cc:
  Write information that one can use --log-basename
sql/set_var.cc:
  Add log_basename as a readonly variable

16 files changed, 205 insertions, 83 deletions

diff --git a/mysql-test/Makefile.am b/mysql-test/Makefile.am
index b0747558f2a..6945b0a714a 100644
--- a/mysql-test/Makefile.am
+++ b/mysql-test/Makefile.am
@@ -86,7 +86,7 @@ TEST_DIRS = t r include std_data std_data/parts collections \
 	suite/federated \
 	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 suite/oqgraph/include \
+	suite/oqgraph suite/oqgraph/t suite/oqgraph/r  \
 	suite/percona suite/sphinx \
 	suite/funcs_1 suite/funcs_1/bitdata \
 	suite/funcs_1/include suite/funcs_1/lib suite/funcs_1/r \
diff --git a/mysql-test/lib/My/ConfigFactory.pm b/mysql-test/lib/My/ConfigFactory.pm
index b22e8bfb4b5..a5bd5fb28f2 100644
--- a/mysql-test/lib/My/ConfigFactory.pm
+++ b/mysql-test/lib/My/ConfigFactory.pm
@@ -200,6 +200,7 @@ my @mysqld_rules=
   (
  { 'basedir' => sub { return shift->{ARGS}->{basedir}; } },
  { 'tmpdir' => \&fix_tmpdir },
+ { 'log-basename' => sub { return "mysqld" } },
  { 'character-sets-dir' => \&fix_charset_dir },
  { 'language' => \&fix_language },
  { 'datadir' => \&fix_datadir },
@@ -208,6 +209,7 @@ my @mysqld_rules=
  { 'port' => \&fix_port },
  { '#extra-port' => \&fix_port },
  { 'socket' => \&fix_socket },
+ { 'log-error' => \&fix_log_error },
  { '#log-error' => \&fix_log_error },
  { 'general-log' => sub { return 1; } },
  { 'general-log-file' => \&fix_log },
@@ -216,6 +218,7 @@ my @mysqld_rules=
  { '#user' => sub { return shift->{ARGS}->{user} || ""; } },
  { '#password' => sub { return shift->{ARGS}->{password} || ""; } },
  { 'server-id' => \&fix_server_id, },
+ { 'sync-sys'  => sub { return 1; } },
  # By default, prevent the started mysqld to access files outside of vardir
  { 'secure-file-priv' => sub { return shift->{ARGS}->{vardir}; } },
  { 'ssl-ca' => \&fix_ssl_ca },
diff --git a/mysql-test/r/variables-notembedded.result b/mysql-test/r/variables-notembedded.result
index 8c6d54757ed..c9a1d64cdd0 100644
--- a/mysql-test/r/variables-notembedded.result
+++ b/mysql-test/r/variables-notembedded.result
@@ -33,12 +33,12 @@ ERROR HY000: Variable 'log_slave_updates' is a read only variable
 #
 SHOW VARIABLES like 'relay_log';
 Variable_name	Value
-relay_log	
+relay_log	mysqld-relay-bin
 SELECT @@session.relay_log;
 ERROR HY000: Variable 'relay_log' is a GLOBAL variable
 SELECT @@global.relay_log;
 @@global.relay_log
-NULL
+mysqld-relay-bin
 SET @@session.relay_log= 'x';
 ERROR HY000: Variable 'relay_log' is a read only variable
 SET @@global.relay_log= 'x';
@@ -46,12 +46,12 @@ ERROR HY000: Variable 'relay_log' is a read only variable
 #
 SHOW VARIABLES like 'relay_log_index';
 Variable_name	Value
-relay_log_index	
+relay_log_index	mysqld-relay-bin.index
 SELECT @@session.relay_log_index;
 ERROR HY000: Variable 'relay_log_index' is a GLOBAL variable
 SELECT @@global.relay_log_index;
 @@global.relay_log_index
-NULL
+mysqld-relay-bin.index
 SET @@session.relay_log_index= 'x';
 ERROR HY000: Variable 'relay_log_index' is a read only variable
 SET @@global.relay_log_index= 'x';
diff --git a/mysql-test/suite/binlog/t/binlog_delete_and_flush_index-master.opt b/mysql-test/suite/binlog/t/binlog_delete_and_flush_index-master.opt
new file mode 100644
index 00000000000..434bd66d696
--- /dev/null
+++ b/mysql-test/suite/binlog/t/binlog_delete_and_flush_index-master.opt
@@ -0,0 +1 @@
+--log-bin=master-bin --log-bin-index=master-bin
diff --git a/mysql-test/suite/binlog/t/binlog_index-master.opt b/mysql-test/suite/binlog/t/binlog_index-master.opt
index ff2ad57a9e9..35b2dc04cd1 100644
--- a/mysql-test/suite/binlog/t/binlog_index-master.opt
+++ b/mysql-test/suite/binlog/t/binlog_index-master.opt
@@ -1 +1 @@
---force-restart --skip-stack-trace --test-expect-abort --log-warnings=0
+--force-restart --skip-stack-trace --test-expect-abort --log-warnings=0 --log-bin=master-bin --log-bin-index=master-bin
diff --git a/mysql-test/suite/binlog/t/binlog_stm_unsafe_warning-master.opt b/mysql-test/suite/binlog/t/binlog_stm_unsafe_warning-master.opt
index 91466bcdea3..2dda40e61c3 100644
--- a/mysql-test/suite/binlog/t/binlog_stm_unsafe_warning-master.opt
+++ b/mysql-test/suite/binlog/t/binlog_stm_unsafe_warning-master.opt
@@ -1 +1 @@
---binlog-ignore-db=b42851 --log-error
+--binlog-ignore-db=b42851 --log-error --log-bin=master-bin --log-bin-index=master-bin
diff --git a/mysql-test/suite/binlog/t/binlog_stm_unsafe_warning.test b/mysql-test/suite/binlog/t/binlog_stm_unsafe_warning.test
index d09f4e433ac..809b03691c7 100644
--- a/mysql-test/suite/binlog/t/binlog_stm_unsafe_warning.test
+++ b/mysql-test/suite/binlog/t/binlog_stm_unsafe_warning.test
@@ -101,6 +101,7 @@ if(!`select LENGTH('$log_error_')`)
   # does not know the location of its .err log, use default location
   let $log_error_ = $MYSQLTEST_VARDIR/log/mysqld.1.err;
 }
+
 # Assign env variable LOG_ERROR
 let LOG_ERROR=$log_error_;
 
@@ -109,8 +110,9 @@ let LOG_ERROR=$log_error_;
 
 perl;
   use strict;
+  use Cwd;
   my $log_error= $ENV{'LOG_ERROR'} or die "LOG_ERROR not set";
-  open(FILE, "$log_error") or die("Unable to open $log_error: $!\n");
+  open(FILE, "$log_error") or die("Unable to open '$log_error' from directory " . cwd() . "\n");
   my $count = () = grep(/Bug#46265/g,<FILE>);
   print "Occurrences: $count\n";
   close(FILE);
diff --git a/mysql-test/suite/rpl/r/rpl_flushlog_loop.result b/mysql-test/suite/rpl/r/rpl_flushlog_loop.result
index 26b7640ccbc..d53d057b470 100644
--- a/mysql-test/suite/rpl/r/rpl_flushlog_loop.result
+++ b/mysql-test/suite/rpl/r/rpl_flushlog_loop.result
@@ -2,7 +2,7 @@ include/rpl_init.inc [topology=1->2->1]
 show variables like 'relay_log%';
 Variable_name	Value
 relay_log	master-relay-bin
-relay_log_index	
+relay_log_index	master-relay-bin.index
 relay_log_info_file	relay-log.info
 relay_log_purge	ON
 relay_log_space_limit	0
diff --git a/mysql-test/suite/rpl/rpl_1slave_base.cnf b/mysql-test/suite/rpl/rpl_1slave_base.cnf
index 2e2ae79888e..e1d2d026acb 100644
--- a/mysql-test/suite/rpl/rpl_1slave_base.cnf
+++ b/mysql-test/suite/rpl/rpl_1slave_base.cnf
@@ -6,8 +6,9 @@
 # Run the master.sh script before starting this process
 #!run-master-sh
 
-log-bin=                 master-bin
-relay-log=               master-relay-bin
+log-basename=            master
+# log-bin=                 master-bin
+# relay-log=               master-relay-bin
 
 [mysqld.2]
 # Run the slave.sh script before starting this process
@@ -17,7 +18,8 @@ relay-log=               master-relay-bin
 # starting the mysqld
 #!use-slave-opt
 
-relay-log=                  slave-relay-bin
+log-basename=               slave
+# relay-log=                  slave-relay-bin
 
 init-rpl-role=              slave
 log-slave-updates
diff --git a/scripts/mysql_install_db.sh b/scripts/mysql_install_db.sh
index dc27dbb0f49..6b1b1e6f121 100644
--- a/scripts/mysql_install_db.sh
+++ b/scripts/mysql_install_db.sh
@@ -50,6 +50,8 @@ Usage: $0 [OPTIONS]
                        use hostnames will use IP addresses.
   --ldata=path         The path to the MariaDB data directory. Same as
                        --datadir.
+  --no-defaults        Don't read any configuration files (my.cnf).
+  --defaults-file=path Read only this configuration file.
   --rpm                For internal use.  This option is used by RPM files
                        during the MariaDB installation process.
   --skip-name-resolve  Use IP addresses rather than hostnames when creating
@@ -79,6 +81,13 @@ s_echo()
   fi
 }
 
+link_to_help()
+{
+  echo
+  echo "The latest information about mysql_install_db is available at"
+  echo "http://kb.askmonty.org/v/installing-system-tables-mysql_install_db."
+}
+
 parse_arg()
 {
   echo "$1" | sed -e 's/^[^=]*=//'
@@ -194,7 +203,7 @@ cannot_find_file()
   echo "If you are using a binary release, you must either be at the top"
   echo "level of the extracted archive, or pass the --basedir option"
   echo "pointing to that location."
-  echo
+  link_to_help
 }
 
 # Ok, let's go.  We first need to parse arguments which are required by
@@ -213,6 +222,7 @@ parse_arguments PICK-ARGS-FROM-ARGV "$@"
 if test -n "$srcdir" && test -n "$basedir"
 then
   echo "ERROR: Specify either --basedir or --srcdir, not both."
+  link_to_help
   exit 1
 fi
 if test -n "$srcdir"
@@ -335,6 +345,7 @@ then
       echo "hostname."
       echo "If you want to solve this at a later stage, restart this script"
       echo "with the --force option"
+      link_to_help
       exit 1
     fi
     echo "WARNING: The host '$hostname' could not be looked up with resolveip."
@@ -356,7 +367,12 @@ for dir in $ldata $ldata/mysql $ldata/test
 do
   if test ! -d $dir
   then
-    mkdir -p $dir
+    if ! `mkdir -p $dir`
+    then
+      echo "Fatal error Can't create database directory '$dir'"
+      link_to_help
+      exit 1
+    fi
     chmod 700 $dir
   fi
   if test -w / -a ! -z "$user"
@@ -389,7 +405,7 @@ mysqld_install_cmd_line="$mysqld_bootstrap $defaults $mysqld_opt --bootstrap \
   --net_buffer_length=16K"
 
 # Create the system and help tables by passing them to "mysqld --bootstrap"
-s_echo "Installing MariaDB/MySQL system tables..."
+s_echo "Installing MariaDB/MySQL system tables in '$ldata' ..."
 if { echo "use mysql;"; cat $create_system_tables $fill_system_tables; } | eval "$filter_cmd_line" | $mysqld_install_cmd_line > /dev/null
 then
   s_echo "OK"
@@ -410,9 +426,7 @@ else
   echo
   echo "Try 'mysqld --help' if you have problems with paths.  Using"
   echo "--general-log gives you a log in $ldata that may be helpful."
-  echo
-  echo "The latest information about mysql_install_db is available at"
-  echo "http://kb.askmonty.org/v/installing-system-tables-mysql_install_db."
+  link_to_help
   echo "MariaDB is hosted on launchpad; You can find the latest source and"
   echo "email lists at http://launchpad.net/maria"
   echo
@@ -454,13 +468,13 @@ then
   echo "databases and anonymous user created by default.  This is"
   echo "strongly recommended for production servers."
   echo
-  echo "See the MySQL manual for more instructions."
+  echo "See the MariaDB knowledge or the MySQL manual for more instructions."
 
   if test "$in_rpm" -eq 0
   then
     echo
     echo "You can start the MariaDB daemon with:"
-    echo "cd $basedir ; $bindir/mysqld_safe &"
+    echo "cd $basedir ; $bindir/mysqld_safe --datadir=$ldata"
     echo
     echo "You can test the MariaDB daemon with mysql-test-run.pl"
     echo "cd $basedir/mysql-test ; perl mysql-test-run.pl"
diff --git a/scripts/mysqld_safe.sh b/scripts/mysqld_safe.sh
index 40db034d29b..cae63343cfc 100644
--- a/scripts/mysqld_safe.sh
+++ b/scripts/mysqld_safe.sh
@@ -159,9 +159,13 @@ parse_arguments() {
     case "$arg" in
       # these get passed explicitly to mysqld
       --basedir=*) MY_BASEDIR_VERSION="$val" ;;
-      --datadir=*) DATADIR="$val" ;;
+      --datadir=*|--data=*) DATADIR="$val" ;;
       --pid-file=*) pid_file="$val" ;;
       --user=*) user="$val"; SET_USER=1 ;;
+      --log-basename=*|--hostname=*|--loose-log-basename=*)
+        pid_file="$val.pid";
+	err_log="$val.err";
+	;;
 
       # these might have been set in a [mysqld_safe] section of my.cnf
       # they are added to mysqld command line to override settings from my.cnf
@@ -411,7 +415,11 @@ safe_mysql_unix_port=${mysql_unix_port:-${MYSQL_UNIX_PORT:-@MYSQL_UNIX_ADDR@}}
 mysql_unix_port_dir=`dirname $safe_mysql_unix_port`
 if [ ! -d $mysql_unix_port_dir ]
 then
-  mkdir $mysql_unix_port_dir
+  if ! `mkdir -p $mysql_unix_port_dir`
+  then
+    echo "Fatal error Can't create database directory '$mysql_unix_port'"
+    exit 1
+  fi
   chown $user $mysql_unix_port_dir
   chmod 755 $mysql_unix_port_dir
 fi
@@ -434,14 +442,14 @@ fi
 
 if test -z "$pid_file"
 then
-  pid_file="$DATADIR/`@HOSTNAME@`.pid"
-else
-  case "$pid_file" in
-    /* ) ;;
-    * )  pid_file="$DATADIR/$pid_file" ;;
-  esac
+  pid_file="`@HOSTNAME@`.pid"
 fi
+# MariaDB wants pid file without datadir
 append_arg_to_args "--pid-file=$pid_file"
+case "$pid_file" in
+  /* ) ;;
+  * )  pid_file="$DATADIR/$pid_file" ;;
+esac
 
 if test -n "$mysql_unix_port"
 then
diff --git a/sql/log.cc b/sql/log.cc
index 5c72ce96890..becddf7bfdc 100644
--- a/sql/log.cc
+++ b/sql/log.cc
@@ -112,6 +112,27 @@ char *make_default_log_name(char *buff,const char* log_ext)
                    MYF(MY_UNPACK_FILENAME|MY_REPLACE_EXT));
 }
 
+
+/*
+  Create a filename from a base with a given suffix.
+  The name is allocated trough my_once_alloc(), so one should only
+  use this for startup options that can all be freed at once.
+*/
+
+char *make_once_alloced_filename(const char *basename, const char *ext)
+{
+  char buff[FN_REFLEN+10], *end, *res;
+  size_t length;
+  strmake(buff, basename, sizeof(buff)-10);
+  end= strmov(fn_ext(buff), ext);
+  length= (size_t) (end - buff) + 1;
+
+  if ((res= (char*) my_once_alloc(length, MYF(MY_WME))))
+    memcpy(res, buff, length);
+  return res;
+}
+
+
 /*
   Helper class to hold a mutex for the duration of the
   block.
diff --git a/sql/mysql_priv.h b/sql/mysql_priv.h
index 46e202df071..68d678eecdf 100644
--- a/sql/mysql_priv.h
+++ b/sql/mysql_priv.h
@@ -1625,6 +1625,7 @@ void remove_db_from_cache(const char *db);
 void flush_tables();
 bool is_equal(const LEX_STRING *a, const LEX_STRING *b);
 char *make_default_log_name(char *buff,const char* log_ext);
+char *make_once_alloced_filename(const char *basename, const char *ext);
 
 #ifdef WITH_PARTITION_STORAGE_ENGINE
 uint fast_alter_partition_table(THD *thd, TABLE *table,
@@ -1966,7 +1967,7 @@ extern MYSQL_PLUGIN_IMPORT uint reg_ext_length;
 #ifdef MYSQL_SERVER
 extern char glob_hostname[FN_REFLEN], mysql_home[FN_REFLEN];
 extern char pidfile_name[FN_REFLEN], system_time_zone[30], *opt_init_file;
-extern char log_error_file[FN_REFLEN], *opt_tc_log_file;
+extern char log_error_file[FN_REFLEN], *opt_tc_log_file, *opt_log_basename;
 extern ulonglong log_10_int[20];
 extern ulonglong keybuff_size;
 extern ulonglong thd_startup_options;
diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index 047534e6173..8bb173fda70 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -1,6 +1,6 @@
 /* Copyright (C) 2000-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc.
    2010 Oracle and/or its affiliates
-   2009-2010 Monty Program Ab
+   2009-2011 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
@@ -626,7 +626,7 @@ time_t server_start_time, flush_status_time;
 
 char mysql_home[FN_REFLEN], pidfile_name[FN_REFLEN], system_time_zone[30];
 char *default_tz_name;
-char log_error_file[FN_REFLEN], glob_hostname[FN_REFLEN];
+char log_error_file[FN_REFLEN], glob_hostname[FN_REFLEN], *opt_log_basename;
 char mysql_real_data_home[FN_REFLEN],
      language[FN_REFLEN], reg_ext[FN_EXTLEN], mysql_charsets_dir[FN_REFLEN],
      *opt_init_file, *opt_tc_log_file,
@@ -1407,8 +1407,6 @@ void clean_up(bool print_message)
 #ifdef HAVE_REPLICATION
   my_free(slave_load_tmpdir,MYF(MY_ALLOW_ZERO_PTR));
 #endif
-  x_free(opt_bin_logname);
-  x_free(opt_relay_logname);
   x_free(opt_secure_file_priv);
   bitmap_free(&temp_pool);
   free_max_user_conn();
@@ -3447,15 +3445,21 @@ static int init_common_variables(const char *conf_file_name, int argc,
   */
   mysql_bin_log.init_pthread_objects();
 
-  if (gethostname(glob_hostname,sizeof(glob_hostname)) < 0)
   {
-    strmake(glob_hostname, STRING_WITH_LEN("localhost"));
-    sql_print_warning("gethostname failed, using '%s' as hostname",
-                      glob_hostname);
-    strmake(pidfile_name, STRING_WITH_LEN("mysql"));
+    /*
+      Get hostname of computer (used by 'show variables') and as default
+      basename for the pid file if --log-basename is not given.
+    */
+    const char *basename= glob_hostname;
+    if (gethostname(glob_hostname,sizeof(glob_hostname)) < 0)
+    {
+      strmake(glob_hostname, STRING_WITH_LEN("localhost"));
+      sql_print_warning("gethostname failed, using '%s' as hostname",
+                        glob_hostname);
+      basename= "mysql";
+    }
+    strmake(pidfile_name, basename, sizeof(pidfile_name)-5);
   }
-  else
-  strmake(pidfile_name, glob_hostname, sizeof(pidfile_name)-5);
   strmov(fn_ext(pidfile_name),".pid");		// Add proper extension
 
   /*
@@ -4060,7 +4064,7 @@ version 5.0 and above. It is replaced by the binary log.");
       if (opt_update_logname)
       {
         /* as opt_bin_log==0, no need to free opt_bin_logname */
-        if (!(opt_bin_logname= my_strdup(opt_update_logname, MYF(MY_WME))))
+        if (!(opt_bin_logname= my_once_strdup(opt_update_logname, MYF(MY_WME))))
         {
           sql_print_error("Out of memory");
           return EXIT_OUT_OF_MEMORY;
@@ -4160,8 +4164,7 @@ a file name for --log-bin-index option", opt_binlog_index_name);
     }
     if (ln == buf)
     {
-      my_free(opt_bin_logname, MYF(MY_ALLOW_ZERO_PTR));
-      opt_bin_logname=my_strdup(buf, MYF(0));
+      opt_bin_logname= my_once_strdup(buf, MYF(MY_WME));
     }
     if (mysql_bin_log.open_index_file(opt_binlog_index_name, ln, TRUE))
     {
@@ -5993,7 +5996,7 @@ enum options_mysqld
   OPT_PROFILING,
   OPT_KEEP_FILES_ON_CREATE,
   OPT_GENERAL_LOG,
-  OPT_SLOW_LOG,
+  OPT_SLOW_LOG, OPT_LOG_BASENAME,
   OPT_THREAD_HANDLING,
   OPT_INNODB_ROLLBACK_ON_TIMEOUT,
   OPT_SECURE_FILE_PRIV,
@@ -6260,8 +6263,8 @@ struct my_option my_long_options[] =
    &opt_debugging, &opt_debugging,
    0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
   {"general_log", OPT_GENERAL_LOG,
-   "Enable/disable general log.", &opt_log,
-   &opt_log, 0, GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0},
+   "Enable/disable general log.  Filename can be specified with --general-log-file or --log-basename.  Is 'hostname.err' by default.",
+   &opt_log, &opt_log, 0, GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0},
 #ifdef HAVE_LARGE_PAGES
   {"large-pages", OPT_ENABLE_LARGE_PAGES, "Enable support for large pages. "
    "Disable with --skip-large-pages.", &opt_large_pages, &opt_large_pages,
@@ -6301,16 +6304,32 @@ each time the SQL thread starts.",
    "--general_log/--general_log_file instead).", &opt_logname,
    &opt_logname, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
   {"general_log_file", OPT_GENERAL_LOG_FILE,
-   "Log connections and queries to given file.", &opt_logname,
-   &opt_logname, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
+   "Log connections and queries to given file. Defaults to "
+   "'datadir'/'log-basename'.log or 'datadir'/'hostname'.log if not "
+   "specified.",
+   &opt_logname, &opt_logname, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
+  {"log-basename", OPT_LOG_BASENAME,
+   "Basename for all log files and the .pid file. This sets all log file "
+   "names at once (in 'datadir') and is normally the only option you need "
+   "for specifying log files. This is especially recommend to be set if you "
+   "are using replication as it ensures that your log file names are not "
+   "depending on your host name. Sets names for --log-bin, --log-bin-index, "
+   "--relay-log, --relay-log-index, --general-log-file, "
+   "--log-slow-query-log-file, --log-error-file and --pid-file",
+   &opt_log_basename, &opt_log_basename, 0, GET_STR, REQUIRED_ARG,
+   0, 0, 0, 0, 0, 0},
   {"log-bin", OPT_BIN_LOG,
-   "Log update queries in binary format. Optional (but strongly recommended "
-   "to avoid replication problems if server's hostname changes) argument "
-   "should be the chosen location for the binary log files.",
-   &opt_bin_logname, &opt_bin_logname, 0, GET_STR_ALLOC,
+   "Log update queries in binary format. Optional argument should be name for "
+   "binary log. If not given "
+   "datadir/'log-basename'-bin or 'datadir'/mysql-bin will be used (the later if "
+   "--log-basename is not specified). We strongly recommend you to use either "
+   "--log-basename or specify a filename to ensure that replication doesn't "
+   "stop if the real hostname of the computer changes'.",
+   &opt_bin_logname, &opt_bin_logname, 0, GET_STR,
    OPT_ARG, 0, 0, 0, 0, 0, 0},
   {"log-bin-index", OPT_BIN_LOG_INDEX,
-   "File that holds the names for last binary log files.",
+   "File that holds the names for last binary log files. If not specified, "
+   "defaults to 'datadir/log-basename'-bin.index or 'datadir/mysql-bin.index'",
    &opt_binlog_index_name, &opt_binlog_index_name, 0, GET_STR,
    REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
 #ifndef TO_BE_REMOVED_IN_5_1_OR_6_0
@@ -6339,7 +6358,10 @@ each time the SQL thread starts.",
    "break, so you can safely set this to 1."
    ,&trust_function_creators, &trust_function_creators, 0,
    GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
-  {"log-error", OPT_ERROR_LOG_FILE, "Error log file.",
+  {"log-error", OPT_ERROR_LOG_FILE,
+   "Log errors to file (instead of stdout).  If file name is not specified "
+   "then 'datadir'/'log-basename'.err or the pid-file path with extension "
+   ".err is used.",
    &log_error_file_ptr, &log_error_file_ptr, 0, GET_STR,
    OPT_ARG, 0, 0, 0, 0, 0, 0},
   {"log-isam", OPT_ISAM_LOG, "Log all MyISAM changes to file.",
@@ -6377,15 +6399,20 @@ each time the SQL thread starts.",
   &opt_log_slow_slave_statements,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
   {"log-slow-queries", OPT_SLOW_QUERY_LOG,
-    "Log slow queries to a table or log file. Defaults logging to table "
-    "mysql.slow_log or hostname-slow.log if --log-output=file is used. "
-    "Must be enabled to activate other slow log options. "
-    "(deprecated option, use --slow_query_log/--slow_query_log_file instead)",
+   "Enable logging of slow queries (longer than --log-slow-time) to log file "
+   "or table. Optional argument is file name for slow log. If not given, "
+   "'log-basename'-slow.log will be used. Use --log-output=TABLE if you want "
+   "to have the log in the table 'mysql.slow_log'",
    &opt_slow_logname, &opt_slow_logname, 0, GET_STR, OPT_ARG,
    0, 0, 0, 0, 0, 0},
   {"slow_query_log_file", OPT_SLOW_QUERY_LOG_FILE,
-    "Log slow queries to given log file. Defaults logging to hostname-slow.log. "
-    "Must be enabled to activate other slow log options.",
+   "Specify name for slow query log. Defaults to 'log-basename'-slow.log if "
+   "not given",
+   &opt_slow_logname, &opt_slow_logname, 0, GET_STR,
+   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
+  {"log-slow-file", OPT_SLOW_QUERY_LOG_FILE,
+   "Specify name for slow query log. Defaults to 'log-basename'-slow.log if "
+   "not given",
    &opt_slow_logname, &opt_slow_logname, 0, GET_STR,
    REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
   {"log-tc", OPT_LOG_TC,
@@ -6404,7 +6431,8 @@ each time the SQL thread starts.",
    "log and this option just turns on --log-bin instead.",
    &opt_update_logname, &opt_update_logname, 0, GET_STR,
    OPT_ARG, 0, 0, 0, 0, 0, 0},
-  {"log-warnings", 'W', "Log some not critical warnings to the log file.",
+  {"log-warnings", 'W', "Log some not critical warnings to the general log "
+   "file.",
    &global_system_variables.log_warnings,
    &max_system_variables.log_warnings, 0, GET_ULONG, OPT_ARG, 1, 0, 0,
    0, 0, 0},
@@ -6427,7 +6455,8 @@ each time the SQL thread starts.",
    0, 0, 0, 0},
   {"master-info-file", OPT_MASTER_INFO_FILE,
    "The location and name of the file that remembers the master and where "
-   "the I/O replication thread is in the master's binlogs.",
+   "the I/O replication thread is in the master's binlogs. Defaults to "
+   "master.info. Is not affected by --log-basename.",
    &master_info_file, &master_info_file, 0, GET_STR,
    REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
   {"master-password", OPT_MASTER_PASSWORD,
@@ -6629,7 +6658,9 @@ each time the SQL thread starts.",
    "per each user+host vs. per account).",
    &opt_old_style_user_limits, &opt_old_style_user_limits,
    0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
-  {"pid-file", OPT_PID_FILE, "Pid file used by safe_mysqld.",
+  {"pid-file", OPT_PID_FILE,
+   "Pid file used by safe_mysqld.  If not set, defaults to "
+   "'datadir'/'log-basename'.pid or 'datadir'/'hostname'.pid'.",
    &pidfile_name_ptr, &pidfile_name_ptr, 0, GET_STR,
    REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
   {"port", 'P', "Port number to use for connection or 0 for default to, in "
@@ -6651,17 +6682,19 @@ each time the SQL thread starts.",
    0, GET_ULONG, REQUIRED_ARG, 15, 0, 100, 0, 0, 0},
 #endif
   {"relay-log", OPT_RELAY_LOG,
-   "The location and name to use for relay logs.",
+   "The location and name to use for relay logs.  If not specified "
+   "'datadir'/'log-basename' will be used.",
    &opt_relay_logname, &opt_relay_logname, 0,
-   GET_STR_ALLOC, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
+   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
   {"relay-log-index", OPT_RELAY_LOG_INDEX,
-   "The location and name to use for the file that keeps a list of the last \
-relay logs.",
+   "The location and name to use for the file that keeps a list of the last "
+   "relay logs.  If not specified 'datadir'/'log-basename' will be used.",
    &opt_relaylog_index_name, &opt_relaylog_index_name, 0,
    GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
   {"relay-log-info-file", OPT_RELAY_LOG_INFO_FILE,
-   "The location and name of the file that remembers where the SQL replication \
-thread is in the relay logs.",
+   "The location and name of the file that remembers where the SQL "
+   "replication thread is in the relay logs. Defaults to relay-log.info. "
+   "Is not affected by '--log-basename'.",
    &relay_log_info_file, &relay_log_info_file, 0, GET_STR,
    REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
   {"replicate-do-db", OPT_REPLICATE_DO_DB,
@@ -6841,7 +6874,8 @@ thread is in the relay logs.",
    &slave_exec_mode_str, &slave_exec_mode_str, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
 #endif
   {"slow-query-log", OPT_SLOW_LOG,
-   "Enable/disable slow query log.", &opt_slow_log,
+   "Enable/disable slow query log. See also '--log-slow-queries'",
+   &opt_slow_log,
    &opt_slow_log, 0, GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0},
   {"socket", OPT_SOCKET, "Socket file to use for connection.",
    &mysqld_unix_port, &mysqld_unix_port, 0, GET_STR,
@@ -7099,19 +7133,16 @@ thread is in the relay logs.",
    "Choose how verbose the messages to your slow log will be. Multiple flags "
    "allowed in a comma-separated string. [query_plan, innodb]",
    0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
-  {"log-slow-file", OPT_SLOW_QUERY_LOG_FILE,
-    "Log slow queries to given log file. Defaults logging to hostname-slow.log",
-   &opt_slow_logname, &opt_slow_logname, 0, GET_STR,
-   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
-  {"long_query_time", OPT_LONG_QUERY_TIME,
-   "Log all queries that have taken more than long_query_time seconds to "
-   "execute. The argument will be treated as a decimal value with "
-   "microsecond precision.",
+  {"log-slow-time", OPT_LONG_QUERY_TIME,
+   "Log all queries that have taken more than log-slow-time seconds to "
+   "execute to file. The argument will be treated as a decimal value with "
+   "microsecond precission. Same as --log-query-time.",
    &long_query_time, &long_query_time, 0, GET_DOUBLE,
    REQUIRED_ARG, 10, 0, LONG_TIMEOUT, 0, 0, 0},
-  {"log-slow-time", OPT_LONG_QUERY_TIME,
-   "Log all queries that have taken more than long_query_time seconds to execute to file. "
-   "The argument will be treated as a decimal value with microsecond precission.",
+  {"long_query_time", OPT_LONG_QUERY_TIME,
+   "Log all queries that have taken more than long-query-time seconds to "
+   "execute to file. The argument will be treated as a decimal value with "
+   "microsecond precission. Same as --log-slow-time.",
    &long_query_time, &long_query_time, 0, GET_DOUBLE,
    REQUIRED_ARG, 10, 0, LONG_TIMEOUT, 0, 0, 0},
   {"lower_case_table_names", OPT_LOWER_CASE_TABLE_NAMES,
@@ -8214,6 +8245,7 @@ static int mysql_init_variables(void)
   opt_skip_name_resolve= 0;
   opt_ignore_builtin_innodb= 0;
   opt_logname= opt_update_logname= opt_binlog_index_name= opt_slow_logname= 0;
+  opt_log_basename= 0;
   opt_tc_log_file= (char *)"tc.log";      // no hostname in tc_log file name !
   opt_secure_auth= 0;
   opt_secure_file_priv= 0;
@@ -8622,6 +8654,42 @@ mysqld_get_one_option(int optid,
   case (int) OPT_BIN_LOG:
     opt_bin_log= test(argument != disabled_my_option);
     break;
+  case (int) OPT_LOG_BASENAME:
+  {
+    if (opt_log_basename[0] == 0 || strchr(opt_log_basename, FN_EXTCHAR) ||
+        strchr(opt_log_basename,FN_LIBCHAR))
+    {
+      sql_print_error("Wrong argument for --log-basename. It can't be empty or contain '.' or '" FN_DIRSEP "'");
+      return 1;
+    }
+    log_error_file_ptr= argument;
+
+    /*
+      The following file named needs explicite extensions (should be fixed in
+      future by having the creating code do this).
+    */
+    opt_logname=            make_once_alloced_filename(argument, ".log");
+    opt_slow_logname=       make_once_alloced_filename(argument, "-slow.log");
+    opt_bin_logname=        make_once_alloced_filename(argument, "-bin");
+    opt_binlog_index_name=  make_once_alloced_filename(argument, "-bin.index");
+    opt_relay_logname=      make_once_alloced_filename(argument, "-relay-bin");
+    opt_relaylog_index_name=make_once_alloced_filename(argument,
+                                                       "-relay-bin.index");
+
+    pidfile_name_ptr= pidfile_name;
+    strmake(pidfile_name, argument, sizeof(pidfile_name)-5);
+    strmov(fn_ext(pidfile_name),".pid");
+
+    /* The following is depricated so don't set it by default */
+    if (opt_update_logname)
+      opt_update_logname= argument;
+
+    /* check for errors */
+    if (!opt_bin_logname || !opt_relaylog_index_name || ! opt_logname ||
+        ! opt_slow_logname)
+      return 1;                                 // out of memory error
+    break;
+  }
   case (int) OPT_ERROR_LOG_FILE:
     opt_error_log= 1;
     break;
@@ -8738,7 +8806,6 @@ mysqld_get_one_option(int optid,
   }
 #endif /* HAVE_REPLICATION */
   case (int) OPT_SLOW_QUERY_LOG:
-    WARN_DEPRECATED(NULL, "7.0", "--log_slow_queries", "'--slow_query_log'/'--log-slow-file'");
     opt_slow_log= 1;
     break;
   case  OPT_LOG_OUTPUT:
diff --git a/sql/rpl_rli.cc b/sql/rpl_rli.cc
index c37c4735e37..45bc406f1d5 100644
--- a/sql/rpl_rli.cc
+++ b/sql/rpl_rli.cc
@@ -170,7 +170,8 @@ a file name for --relay-log-index option", opt_relaylog_index_name);
                         " so replication "
                         "may break when this MySQL server acts as a "
                         "slave and has his hostname changed!! Please "
-                        "use '--relay-log=%s' to avoid this problem.", ln);
+                        "use '--log-basename=%' or '--relay-log=%s' to avoid "
+                        "this problem.", ln);
       name_warning_sent= 1;
     }
     /*
diff --git a/sql/set_var.cc b/sql/set_var.cc
index 5a30bd1c0f4..9c977d770a1 100644
--- a/sql/set_var.cc
+++ b/sql/set_var.cc
@@ -895,6 +895,8 @@ static sys_var_thd_set sys_log_slow_verbosity(&vars,
 
 /* Global read-only variable containing hostname */
 static sys_var_const_str        sys_hostname(&vars, "hostname", glob_hostname);
+static sys_var_const_str_ptr    sys_log_basename(&vars, "log_basename",
+                                                 &opt_log_basename);
 
 #ifndef EMBEDDED_LIBRARY
 static sys_var_const_str_ptr    sys_repl_report_host(&vars, "report_host", &report_host);