connection node_2;
connection node_1;
connection node_1;
connection node_2;
connection node_1;
CREATE TABLE t1 (f1 INT PRIMARY KEY, f2 INT);
INSERT INTO t1 VALUES (1, 1);
SET DEBUG_SYNC = "before_lock_tables_takes_lock SIGNAL sync_point_reached WAIT_FOR sync_point_continue";
UPDATE t1 SET f2 = 2 WHERE f1 = 1;
connection node_1_ctrl;
SET DEBUG_SYNC = "now WAIT_FOR sync_point_reached";
connection node_2;
connection node_1_ctrl;
SET DEBUG_SYNC = "now SIGNAL sync_point_continue";
connection node_1;
SET DEBUG_SYNC = "RESET";
connection node_2;
connection node_1;
DROP TABLE t1;