connection node_2; connection node_1; CREATE TABLE t1 (f1 INTEGER PRIMARY KEY); connection node_1; SET SESSION wsrep_trx_fragment_size = 1; SET DEBUG_SYNC = "wsrep_before_fragment_removal SIGNAL fragment_removal_reached WAIT_FOR fragment_removal_continue"; START TRANSACTION; INSERT INTO t1 VALUES(1), (2); COMMIT; connect node_ctrl, 127.0.0.1, root, , test, $NODE_MYPORT_1; connection node_ctrl; SET DEBUG_SYNC = "now WAIT_FOR fragment_removal_reached"; connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1; connection node_1a; TRUNCATE TABLE t1; connection node_1; ERROR 40001: Deadlock found when trying to get lock; try restarting transaction connection node_ctrl; SET DEBUG_SYNC = 'RESET'; DROP TABLE t1;