database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-29 05:21:33 +03:00
Code Activity

BUG#53560 CREATE TEMP./DROP TEMP. are not binglogged correctly after a failed statement

Browse Source 
This patch fixes two problems described as follows:

1 - If there is an on-going transaction and a temporary table is created or
dropped, any failed statement that follows the "create" or "drop commands"
triggers a rollback and by consequence the slave will go out sync because
the binary log will have a wrong sequence of events.

To fix the problem, we changed the expression that evaluates when the
cache should be flushed after either the rollback of a statment or
transaction.

2 - When a "CREATE TEMPORARY TABLE SELECT * FROM" was executed the
OPTION_KEEP_LOG was not set into the thd->options. For that reason, if
the transaction had updated only transactional engines and was rolled
back at the end (.e.g due to a deadlock) the changes were not written
to the binary log, including the creation of the temporary table.
      
To fix the problem, we have set the OPTION_KEEP_LOG into the thd->options
when a "CREATE TEMPORARY TABLE SELECT * FROM" is executed.

sql/log.cc:
  Reorganized the code based on the following functions:
  
  - bool ending_trans(const THD* thd, const bool all);
  - bool trans_has_updated_non_trans_table(const THD* thd);
  - bool trans_has_no_stmt_committed(const THD* thd, const bool all);
  - bool stmt_has_updated_non_trans_table(const THD* thd);
sql/log.h:
  Added functions to organize the code in log.cc.
sql/log_event.cc:
  Removed the OPTION_KEEP_LOG since it must be used only when
  creating and dropping temporary tables.
sql/log_event_old.cc:
  Removed the OPTION_KEEP_LOG since it must be used only when
  creating and dropping temporary tables.
sql/sql_parse.cc:
  When a "CREATE TEMPORARY TABLE SELECT * FROM" was executed the
  OPTION_KEEP_LOG was not set into the thd->options.
        
  To fix the problem, we have set the OPTION_KEEP_LOG into the
  thd->options when a "CREATE TEMPORARY TABLE SELECT * FROM"
  is executed.
This commit is contained in:
Alfranio Correia
2010-05-19 18:01:12 +01:00
parent 59b4dfccb5
commit 3f8bde448c
8 changed files with 190 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
mysql-test/suite/rpl/r/rpl_temporary_errors.result
View File

@ -81,4 +81,61 @@ Last_SQL_Errno 0
Last_SQL_Error
DROP TABLE t1;
**** On Master ****
SET SQL_LOG_BIN= 0;
DROP TABLE t1;
SET SQL_LOG_BIN= 1;
SET SESSION BINLOG_FORMAT=MIXED;
CREATE TABLE t_myisam (id INT, PRIMARY KEY (id)) engine= MyIsam;
INSERT INTO t_myisam (id) VALUES(1);
CREATE TABLE t_innodb (id INT) engine= Innodb;
INSERT INTO t_innodb (id) VALUES(1);
BEGIN;
INSERT INTO t_innodb(id) VALUES(2);
INSERT INTO t_myisam(id) VALUES(3);
CREATE TEMPORARY TABLE x (id INT);
INSERT INTO t_myisam(id) VALUES(4),(1);
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
INSERT INTO t_innodb(id) VALUES(5);
COMMIT;
SELECT * FROM t_innodb;
id
1
2
5
SELECT * FROM t_myisam;
id
1
3
4
SELECT * FROM t_innodb;
id
1
2
5
SELECT * FROM t_myisam;
id
1
3
4
BEGIN;
CREATE TEMPORARY TABLE tmp2 SELECT * FROM t_innodb;
INSERT INTO t_innodb(id) VALUES(1);
INSERT INTO t_innodb(id) VALUES(1);
ROLLBACK;
Warnings:
Warning 1196 Some non-transactional changed tables couldn't be rolled back
show binlog events from <binlog_start>;
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 # Query # # BEGIN
master-bin.000001 # Query # # use `test`; INSERT INTO t_innodb(id) VALUES(2)
master-bin.000001 # Query # # use `test`; INSERT INTO t_myisam(id) VALUES(3)
master-bin.000001 # Query # # use `test`; CREATE TEMPORARY TABLE x (id INT)
master-bin.000001 # Query # # use `test`; INSERT INTO t_myisam(id) VALUES(4),(1)
master-bin.000001 # Query # # use `test`; INSERT INTO t_innodb(id) VALUES(5)
master-bin.000001 # Xid # # COMMIT /* XID */
master-bin.000001 # Query # # use `test`; CREATE TEMPORARY TABLE tmp2 SELECT * FROM t_innodb
master-bin.000001 # Query # # BEGIN
master-bin.000001 # Query # # use `test`; INSERT INTO t_innodb(id) VALUES(1)
master-bin.000001 # Query # # use `test`; INSERT INTO t_innodb(id) VALUES(1)
master-bin.000001 # Query # # ROLLBACK
DROP TABLE t_myisam, t_innodb;