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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_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
--connection node_2
INSERT INTO t1 VALUES (1);
--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
INSERT INTO t1 VALUES (1);
INSERT INTO t1 VALUES (2);
INSERT INTO t1 VALUES (3);
INSERT INTO t1 VALUES (4);
INSERT INTO t1 VALUES (5);
INSERT INTO t1 VALUES (6);
INSERT INTO t1 VALUES (7);
INSERT INTO t1 VALUES (8);
INSERT INTO t1 VALUES (9);
--connection node_1
--let $wait_condition = SELECT COUNT(*) = 12 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 = 10;
SET GLOBAL wsrep_slave_threads = 0;
--connection node_2
INSERT INTO t1 VALUES (10);
INSERT INTO t1 VALUES (11);
INSERT INTO t1 VALUES (12);
INSERT INTO t1 VALUES (13);
INSERT INTO t1 VALUES (14);
INSERT INTO t1 VALUES (15);
INSERT INTO t1 VALUES (16);
INSERT INTO t1 VALUES (17);
INSERT INTO t1 VALUES (18);
INSERT INTO t1 VALUES (19);
INSERT INTO t1 VALUES (20);
--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;
DROP TABLE t1;
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