connection node_2; connection node_1; 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; SELECT COUNT(*) = 0 FROM t1; COUNT(*) = 0 1 connection node_1; COMMIT; ERROR 40001: Deadlock found when trying to get lock; try restarting transaction SELECT COUNT(*) = 0 FROM mysql.wsrep_streaming_log; COUNT(*) = 0 1 connection node_2; SELECT COUNT(*) = 0 FROM mysql.wsrep_streaming_log; COUNT(*) = 0 1 DROP TABLE t1;