connection node_2; connection node_1; CREATE TABLE t1 (f1 INT PRIMARY KEY, f2 INT) ENGINE=InnoDB; connection node_1; SET SESSION wsrep_trx_fragment_size = 128; START TRANSACTION; INSERT INTO t1 VALUES (1, 0); connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1; connection node_1a; SET SESSION wsrep_trx_fragment_size = 1; START TRANSACTION; INSERT INTO t1 VALUES (2, 0); connection node_2; ALTER TABLE t1 DROP COLUMN f2; connection node_1; COMMIT; ERROR 40001: Deadlock found when trying to get lock; try restarting transaction connection node_1a; INSERT INTO t1 VALUES (3, 0); ERROR 40001: Deadlock found when trying to get lock; try restarting transaction DROP TABLE t1;