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*** MDEV-6775: Wrong binlog order in parallel replication ***
include/master-slave.inc
[connection master]
connection server_2;
SET @old_parallel_threads=@@GLOBAL.slave_parallel_threads;
include/stop_slave.inc
SET GLOBAL slave_parallel_threads=10;
CHANGE MASTER TO master_use_gtid=slave_pos;
include/start_slave.inc
connection server_1;
ALTER TABLE mysql.gtid_slave_pos ENGINE=InnoDB;
CREATE TABLE t4 (a INT PRIMARY KEY, b INT, KEY b_idx(b)) ENGINE=InnoDB;
INSERT INTO t4 VALUES (1,NULL), (3,NULL), (4,4), (5, NULL), (6, 6);
connect con1,127.0.0.1,root,,test,$SERVER_MYPORT_1,;
connect con2,127.0.0.1,root,,test,$SERVER_MYPORT_1,;
include/save_master_gtid.inc
connection server_2;
include/sync_with_master_gtid.inc
include/stop_slave.inc
SET @old_dbug= @@GLOBAL.debug_dbug;
SET GLOBAL debug_dbug="+d,inject_binlog_commit_before_get_LOCK_log";
SET @old_format=@@GLOBAL.binlog_format;
SET GLOBAL binlog_format=ROW;
SET GLOBAL slave_parallel_threads=0;
SET GLOBAL slave_parallel_threads=10;
connection con1;
SET @old_format= @@binlog_format;
SET binlog_format= statement;
SET debug_sync='commit_after_release_LOCK_prepare_ordered SIGNAL master_queued1 WAIT_FOR master_cont1';
UPDATE t4 SET b=NULL WHERE a=6;
connection server_1;
SET debug_sync='now WAIT_FOR master_queued1';
connection con2;
SET @old_format= @@binlog_format;
SET binlog_format= statement;
SET debug_sync='commit_after_release_LOCK_prepare_ordered SIGNAL master_queued2';
DELETE FROM t4 WHERE b <= 3;
connection server_1;
SET debug_sync='now WAIT_FOR master_queued2';
SET debug_sync='now SIGNAL master_cont1';
connection con1;
SET binlog_format= @old_format;
connection con2;
SET binlog_format= @old_format;
SET debug_sync='RESET';
SELECT * FROM t4 ORDER BY a;
a b
1 NULL
3 NULL
4 4
5 NULL
6 NULL
connection server_2;
include/start_slave.inc
SET debug_sync= 'now WAIT_FOR waiting';
SELECT * FROM t4 ORDER BY a;
a b
1 NULL
3 NULL
4 4
5 NULL
6 NULL
SET debug_sync= 'now SIGNAL cont';
include/stop_slave.inc
SET GLOBAL debug_dbug=@old_dbug;
SET GLOBAL binlog_format= @old_format;
SET GLOBAL slave_parallel_threads=@old_parallel_threads;
include/start_slave.inc
SET DEBUG_SYNC= 'RESET';
connection server_1;
DROP TABLE t4;
SET DEBUG_SYNC= 'RESET';
disconnect con1;
disconnect con2;
include/rpl_end.inc
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