1CREATE TABLE t1 (a INT) ENGINE = InnoDB PARTITION BY HASH(a); 2INSERT INTO t1 VALUES (0), (1), (2); 3START TRANSACTION; 4UPDATE t1 SET a = 5 WHERE a = 1; 5# Connection con1 6# InnoDB lock timeout and monitor thread runs every 15 seconds 7SET innodb_lock_wait_timeout = 20; 8START TRANSACTION; 9UPDATE t1 SET a = 3 WHERE a = 1; 10ERROR HY000: Lock wait timeout exceeded; try restarting transaction 11COMMIT; 12# Connection default 13COMMIT; 14DROP TABLE t1; 15