--source include/galera_cluster.inc --source include/have_innodb.inc --connection node_1 CREATE TABLE t1 (f1 INTEGER PRIMARY KEY) ENGINE=InnoDB; SET SESSION wsrep_trx_fragment_size = 1; SET AUTOCOMMIT=OFF; START TRANSACTION; 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); --connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1 ALTER TABLE t1 ADD COLUMN f2 INTEGER; --connection node_2 --sleep 2 SET SESSION wsrep_sync_wait = 0; SELECT COUNT(*) = 0 FROM t1; --connection node_1 --error ER_LOCK_DEADLOCK COMMIT; DROP TABLE t1;