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MDEV-8354: out-of-order error with --gtid-ignore-duplicates and row-based replication

Browse Source 
The --gtid-ignore-duplicates option was not working correctly with row-based
replication. When a row event was completed, but before committing, there
was a small window where another multi-source SQL thread could wrongly try
to re-execute the same transaction, without properly ignoring the duplicate
GTID. This would lead to duplicate key error or out-of-order GTID error or
similar.

Thanks to Matt Neth for reporting this and giving an easy way to reproduce
the issue.
This commit is contained in:
Kristian Nielsen
2015-06-23 14:10:14 +02:00
parent 93c039dd3c
commit b89de2b2ce
4 changed files with 263 additions and 7 deletions
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139
mysql-test/suite/multi_source/gtid_ignore_duplicates.result
View File

@ -242,6 +242,145 @@ a
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*** MDEV-8354: out-of-order error with --gtid-ignore-duplicates and row-based replication ***
SET default_master_connection = "b2a";
STOP SLAVE;
include/wait_for_slave_to_stop.inc
SET default_master_connection = "c2a";
STOP SLAVE;
include/wait_for_slave_to_stop.inc
SET default_master_connection = "c2b";
STOP SLAVE;
include/wait_for_slave_to_stop.inc
SET default_master_connection = "b2c";
STOP SLAVE;
include/wait_for_slave_to_stop.inc
SET @old_slave_mode=@@GLOBAL.slave_exec_mode;
SET GLOBAL slave_exec_mode=IDEMPOTENT;
SET @old_strict=@@GLOBAL.gtid_strict_mode;
SET GLOBAL gtid_strict_mode=1;
SET @old_dbug=@@GLOBAL.debug_dbug;
SET GLOBAL debug_dbug="+d,inject_sleep_gtid_100_x_x";
SET @old_domain=@@SESSION.gtid_domain_id;
SET @old_format=@@SESSION.binlog_format;
SET SESSION gtid_domain_id=100;
SET SESSION binlog_format='row';
INSERT INTO t1 VALUES (30);
INSERT INTO t1 VALUES (31);
INSERT INTO t1 VALUES (32);
INSERT INTO t1 VALUES (33);
INSERT INTO t1 VALUES (34);
INSERT INTO t1 VALUES (35);
INSERT INTO t1 VALUES (36);
INSERT INTO t1 VALUES (37);
INSERT INTO t1 VALUES (38);
INSERT INTO t1 VALUES (39);
INSERT INTO t1 VALUES (40);
INSERT INTO t1 VALUES (41);
INSERT INTO t1 VALUES (42);
INSERT INTO t1 VALUES (43);
INSERT INTO t1 VALUES (44);
INSERT INTO t1 VALUES (45);
INSERT INTO t1 VALUES (46);
INSERT INTO t1 VALUES (47);
INSERT INTO t1 VALUES (48);
INSERT INTO t1 VALUES (49);
SET SESSION gtid_domain_id=@old_domain;
SET SESSION binlog_format=@old_format;
include/save_master_gtid.inc
include/sync_with_master_gtid.inc
INSERT INTO t1 VALUES (50);
include/save_master_gtid.inc
SET default_master_connection = "b2c";
START SLAVE;
include/wait_for_slave_to_start.inc
SELECT MASTER_GTID_WAIT("GTID", 30);
MASTER_GTID_WAIT("GTID", 30)
0
SET default_master_connection = "b2a";
START SLAVE;
include/wait_for_slave_to_start.inc
SET default_master_connection = "c2a";
START SLAVE;
include/wait_for_slave_to_start.inc
include/sync_with_master_gtid.inc
SELECT * FROM t1 WHERE a >= 30 ORDER BY a;
a
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SET default_master_connection = "c2b";
START SLAVE;
include/wait_for_slave_to_start.inc
include/sync_with_master_gtid.inc
SELECT * FROM t1 WHERE a >= 30 ORDER BY a;
a
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include/sync_with_master_gtid.inc
SET GLOBAL debug_dbug=@old_dbug;
SELECT * FROM t1 WHERE a >= 30 ORDER BY a;
a
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SET GLOBAL slave_exec_mode=@old_slave_mode;
SET GLOBAL gtid_strict_mode=@old_strict;
SET GLOBAL gtid_domain_id=0;
STOP ALL SLAVES;
Warnings: