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74 lines
2.4 KiB
Plaintext
74 lines
2.4 KiB
Plaintext
--echo *** MDEV-7888: ANALYZE TABLE does wakeup_subsequent_commits(), causing wrong binlog order and parallel replication hang ***
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--source include/have_innodb.inc
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--source include/have_debug.inc
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--source include/have_debug_sync.inc
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--source include/master-slave.inc
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--connection server_2
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SET @old_parallel_threads=@@GLOBAL.slave_parallel_threads;
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SET @old_parallel_mode=@@GLOBAL.slave_parallel_mode;
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--source include/stop_slave.inc
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SET GLOBAL slave_parallel_mode='conservative';
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SET GLOBAL slave_parallel_threads=10;
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CHANGE MASTER TO master_use_gtid=slave_pos;
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--source include/start_slave.inc
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--connection server_1
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ALTER TABLE mysql.gtid_slave_pos ENGINE=InnoDB;
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CREATE TABLE t2 (a int PRIMARY KEY) ENGINE=InnoDB;
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CREATE TABLE t3 (a INT PRIMARY KEY, b INT) ENGINE=InnoDB;
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--save_master_pos
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--connection server_2
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--sync_with_master
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--source include/stop_slave.inc
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SET @old_dbug= @@GLOBAL.debug_dbug;
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SET GLOBAL debug_dbug= '+d,inject_analyze_table_sleep';
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--connection server_1
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# Inject two group commits. The bug was that ANALYZE TABLE would call
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# wakeup_subsequent_commits() too early, allowing the following transaction
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# in the same group to run ahead and binlog and free the GCO. Then we get
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# wrong binlog order and later access freed GCO, which causes lost wakeup
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# of following GCO and thus replication hang.
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# We injected a small sleep in ANALYZE to make the race easier to hit (this
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# can only cause false negatives in versions with the bug, not false positives,
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# so sleep is ok here. And it's in general not possible to trigger reliably
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# the race with debug_sync, since the bugfix makes the race impossible).
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SET @old_dbug= @@SESSION.debug_dbug;
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SET SESSION debug_dbug="+d,binlog_force_commit_id";
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# Group commit with cid=10000, two event groups.
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SET @commit_id= 10000;
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ANALYZE TABLE t2;
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INSERT INTO t3 VALUES (120, 0);
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# Group commit with cid=10001, one event group.
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SET @commit_id= 10001;
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INSERT INTO t3 VALUES (121, 0);
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SET SESSION debug_dbug=@old_dbug;
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SELECT * FROM t3 WHERE a >= 120 ORDER BY a;
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--source include/save_master_gtid.inc
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--connection server_2
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--source include/start_slave.inc
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--source include/sync_with_master_gtid.inc
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SELECT * FROM t3 WHERE a >= 120 ORDER BY a;
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# Clean up.
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--source include/stop_slave.inc
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SET GLOBAL debug_dbug= @old_dbug;
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SET GLOBAL slave_parallel_threads=@old_parallel_threads;
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SET GLOBAL slave_parallel_mode=@old_parallel_mode;
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--source include/start_slave.inc
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--connection server_1
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DROP TABLE t2,t3;
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--source include/rpl_end.inc
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