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MDEV-8294: Inconsistent behavior of slave parallel threads at runtime

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There were some cases where the slave SQL thread could stop without
the pool of parallel replication worker threads being correctly
de-activated.
This commit is contained in:
Kristian Nielsen
2015-06-10 11:57:42 +02:00
parent e5f1e841dc
commit 682ed005c5
3 changed files with 78 additions and 6 deletions
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17
mysql-test/suite/rpl/r/rpl_parallel2.result
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@@ -12,6 +12,23 @@ Note 1592 Unsafe statement written to the binary log using statement format sinc
include/wait_for_slave_param.inc [Seconds_Behind_Master]
Seconds_Behind_Master should be zero here because the slave is fully caught up and idle.
Seconds_Behind_Master = '0'
*** MDEV-8294: Inconsistent behavior of slave parallel threads at runtime ***
INSERT INTO t1 VALUES (10,0);
SET sql_log_bin= 0;
DELETE FROM t1 WHERE a=10;
SET sql_log_bin= 1;
INSERT INTO t1 VALUES (10,0);
SELECT * FROM t1 WHERE a >= 10 ORDER BY a;
a b
10 0
include/wait_for_slave_sql_error.inc [errno=1062]
SET GLOBAL slave_parallel_threads=8;
STOP SLAVE;
SET GLOBAL sql_slave_skip_counter= 1;
include/start_slave.inc
SELECT * FROM t1 WHERE a >= 10 ORDER BY a;
a b
10 0
include/stop_slave.inc
SET GLOBAL slave_parallel_threads=@old_parallel_threads;
include/start_slave.inc