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#
# MW-336 Slave threads may leak if variable wsrep_slave_threads is set repeatedly
#
--source include/galera_cluster.inc
--source include/have_innodb.inc
CREATE TABLE t1 (f1 INTEGER) Engine=InnoDB;
--connection node_1
SET GLOBAL wsrep_slave_threads = 10;
SET GLOBAL wsrep_slave_threads = 1;
--let $wait_timeout=600
--let $wait_condition = SELECT COUNT(*) = 11 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE USER = 'system user' AND (STATE IS NULL OR STATE NOT LIKE 'InnoDB%');
--source include/wait_condition.inc
SELECT COUNT(*) FROM INFORMATION_SCHEMA.PROCESSLIST WHERE USER = 'system user' AND (STATE IS NULL OR STATE NOT LIKE 'InnoDB%');
SHOW STATUS LIKE 'wsrep_thread_count';
--connection node_2
# Generate 11 replication events
--let $count = 11
while ($count)
{
INSERT INTO t1 VALUES (1);
--dec $count
}
--connection node_1
SET GLOBAL wsrep_slave_threads = 10;
--let $wait_condition = SELECT COUNT(*) = 11 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE USER = 'system user' AND (STATE IS NULL OR STATE NOT LIKE 'InnoDB%');
--source include/wait_condition.inc
SET GLOBAL wsrep_slave_threads = 20;
--let $wait_condition = SELECT COUNT(*) = 21 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE USER = 'system user' AND (STATE IS NULL OR STATE NOT LIKE 'InnoDB%');
--source include/wait_condition.inc
SET GLOBAL wsrep_slave_threads = 1;
--connection node_2
# Generate 21 replication events
--let $count = 21
while ($count)
{
INSERT INTO t1 VALUES (1);
--dec $count
}
SET GLOBAL wsrep_slave_threads = 10;
SET GLOBAL wsrep_slave_threads = 0;
--connection node_2
# Generate 21 replication events
--let $count = 21
while ($count)
{
INSERT INTO t1 VALUES (1);
--dec $count
}
--connection node_1
--let $wait_condition = SELECT COUNT(*) = 2 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE USER = 'system user' AND (STATE IS NULL OR STATE NOT LIKE 'InnoDB%');
--source include/wait_condition.inc
SET GLOBAL wsrep_slave_threads = 1;
--connection node_2
# Generate 21 replication events
--let $count = 21
while ($count)
{
INSERT INTO t1 VALUES (1);
--dec $count
}
--connection node_1
DROP TABLE t1;
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