--source include/galera_cluster.inc CREATE TABLE parent(parent_id int not null AUTO_INCREMENT PRIMARY KEY, parent_name varchar(80)) ENGINE=InnoDB; CREATE TABLE child(child_id int not null AUTO_INCREMENT PRIMARY KEY, child_name varchar(80), child_parent_id int not null, CONSTRAINT `fk_child_parent` FOREIGN KEY (child_parent_id) REFERENCES parent (parent_id) ON DELETE CASCADE ON UPDATE CASCADE) ENGINE=InnoDB; INSERT INTO parent VALUES (1, 'first'),(2,'second'),(3,'foo'),(4,'tmp'); INSERT INTO child VALUES (NULL,'first_child',1); INSERT INTO child VALUES (NULL,'second_child',1); INSERT INTO child VALUES (NULL,'first_child2',2); INSERT INTO child VALUES (NULL,'first_child3',2); INSERT INTO child VALUES (NULL,'first_child4',3); BEGIN; UPDATE parent SET parent_name = 'bar' WHERE parent_id = 2; --connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1 SET SESSION innodb_lock_wait_timeout=2; --error ER_LOCK_WAIT_TIMEOUT UPDATE child SET child_parent_id = 5 where child_parent_id = 2; --connection node_1 COMMIT; SELECT * FROM parent; SELECT * FROM child; --connection node_2 SELECT * FROM parent; SELECT * FROM child; DROP TABLE child, parent; --disconnect node_1a