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SET @old_autocommit = @@global.autocommit; SET @@global.autocommit = 0; SET @old_lock_wait_timeout= @@global.lock_wait_timeout; SET @@global.lock_wait_timeout = 1; SET @old_innodb_lock_wait_timeout= @@global.innodb_lock_wait_timeout; SET @@global.innodb_lock_wait_timeout = 1; USE test; CREATE USER 'mysqltest1'@'localhost'; CREATE USER 'mysqltest2'@'localhost'; GRANT ALL PRIVILEGES ON test.* TO 'mysqltest1'@'localhost'; GRANT ALL PRIVILEGES ON test.* TO 'mysqltest2'@'localhost'; CREATE TABLE t1 (a int PRIMARY KEY, b varchar(128), KEY (b)) ENGINE = InnoDB PARTITION BY HASH (a) PARTITIONS 13; INSERT INTO t1 VALUES (11, 'First row, p11'); INSERT INTO t1 VALUES (12, 'First row, p12'); connect test1,localhost,mysqltest1,,test; connect test2,localhost,mysqltest2,,test; connection test1; INSERT INTO t1 VALUES (13+11, 'Second row, p11'); INSERT INTO t1 VALUES (13+12, 'Second row, p12'); SELECT * FROM t1 ORDER BY a; a b 11 First row, p11 12 First row, p12 24 Second row, p11 25 Second row, p12 connection test2; INSERT INTO t1 VALUES (13+11, 'Second row, p11'); ERROR HY000: Lock wait timeout exceeded; try restarting transaction INSERT INTO t1 VALUES (13+12, 'Second row, p12'); ERROR HY000: Lock wait timeout exceeded; try restarting transaction SELECT * FROM t1 ORDER BY a; a b 11 First row, p11 12 First row, p12 COMMIT; connection test1; SELECT * FROM t1 ORDER BY a; a b 11 First row, p11 12 First row, p12 24 Second row, p11 25 Second row, p12 COMMIT; connection default; DROP TABLE t1; DROP USER 'mysqltest1'@'localhost'; DROP USER 'mysqltest2'@'localhost'; SET @@global.autocommit = @old_autocommit; SET @@global.lock_wait_timeout= @old_lock_wait_timeout; SET @@global.innodb_lock_wait_timeout= @old_innodb_lock_wait_timeout;