Merge siva.hindu.god:/usr/home/tim/m/bk/50-24200

into  siva.hindu.god:/usr/home/tim/m/bk/50-release

4 files changed, 15 insertions, 1 deletions

diff --git a/sql/ha_innodb.cc b/sql/ha_innodb.cc
index 9f367313fb0..456fd27d9d9 100644
--- a/sql/ha_innodb.cc
+++ b/sql/ha_innodb.cc
@@ -173,6 +173,7 @@ my_bool innobase_use_large_pages    = FALSE;
 my_bool	innobase_use_native_aio			= FALSE;
 my_bool	innobase_file_per_table			= FALSE;
 my_bool innobase_locks_unsafe_for_binlog        = FALSE;
+my_bool innobase_rollback_on_timeout		= FALSE;
 my_bool innobase_create_status_file		= FALSE;
 
 static char *internal_innobase_data_file_path	= NULL;
@@ -467,6 +468,10 @@ convert_error_code_to_mysql(
 		latest SQL statement in a lock wait timeout. Previously, we
 		rolled back the whole transaction. */
 
+		if (thd && row_rollback_on_timeout) {
+			ha_rollback(thd);
+		}
+
    		return(HA_ERR_LOCK_WAIT_TIMEOUT);
 
  	} else if (error == (int) DB_NO_REFERENCED_ROW) {
@@ -1380,6 +1385,8 @@ innobase_init(void)
 	os_use_large_pages = (ibool) innobase_use_large_pages;
 	os_large_page_size = (ulint) innobase_large_page_size;
 
+	row_rollback_on_timeout = (ibool) innobase_rollback_on_timeout;
+
 	srv_file_per_table = (ibool) innobase_file_per_table;
         srv_locks_unsafe_for_binlog = (ibool) innobase_locks_unsafe_for_binlog;
 
diff --git a/sql/ha_innodb.h b/sql/ha_innodb.h
index 95d7a9437ad..60bc0e9c7cf 100644
--- a/sql/ha_innodb.h
+++ b/sql/ha_innodb.h
@@ -216,6 +216,7 @@ extern my_bool innobase_log_archive,
                innobase_use_large_pages,
                innobase_use_native_aio,
 	       innobase_file_per_table, innobase_locks_unsafe_for_binlog,
+               innobase_rollback_on_timeout,
                innobase_create_status_file;
 extern my_bool innobase_very_fast_shutdown; /* set this to 1 just before
 					    calling innobase_end() if you want
diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index 9411ba2ef12..5890a2af21d 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -4692,7 +4692,8 @@ enum options_mysqld
   OPT_LOG_SLOW_ADMIN_STATEMENTS,
   OPT_TABLE_LOCK_WAIT_TIMEOUT,
   OPT_PORT_OPEN_TIMEOUT,
-  OPT_MERGE
+  OPT_MERGE,
+  OPT_INNODB_ROLLBACK_ON_TIMEOUT
 };
 
 
@@ -4968,6 +4969,10 @@ Disable with --skip-innodb-doublewrite.", (gptr*) &innobase_use_doublewrite,
    (gptr*) &srv_max_purge_lag,
    (gptr*) &srv_max_purge_lag, 0, GET_LONG, REQUIRED_ARG, 0, 0, ~0L,
    0, 1L, 0},
+  {"innodb_rollback_on_timeout", OPT_INNODB_ROLLBACK_ON_TIMEOUT,
+   "Roll back the complete transaction on lock wait timeout, for 4.x compatibility (disabled by default)",
+   (gptr*) &innobase_rollback_on_timeout, (gptr*) &innobase_rollback_on_timeout,
+   0, GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0},
   {"innodb_status_file", OPT_INNODB_STATUS_FILE,
    "Enable SHOW INNODB STATUS output in the innodb_status.<pid> file",
    (gptr*) &innobase_create_status_file, (gptr*) &innobase_create_status_file,
diff --git a/sql/set_var.cc b/sql/set_var.cc
index 23afef742a6..5bbab6224ef 100644
--- a/sql/set_var.cc
+++ b/sql/set_var.cc
@@ -904,6 +904,7 @@ struct show_var_st init_vars[]= {
   {sys_innodb_max_purge_lag.name, (char*) &sys_innodb_max_purge_lag, SHOW_SYS},
   {"innodb_mirrored_log_groups", (char*) &innobase_mirrored_log_groups, SHOW_LONG},
   {"innodb_open_files", (char*) &innobase_open_files, SHOW_LONG },
+  {"innodb_rollback_on_timeout", (char*) &innobase_rollback_on_timeout, SHOW_MY_BOOL},
   {sys_innodb_support_xa.name, (char*) &sys_innodb_support_xa, SHOW_SYS},
   {sys_innodb_sync_spin_loops.name, (char*) &sys_innodb_sync_spin_loops, SHOW_SYS},
   {sys_innodb_table_locks.name, (char*) &sys_innodb_table_locks, SHOW_SYS},