设置mysql 事务锁超时时间 innodb_lock_wait_timeout

Mysql数据库采用InnoDB模式，默认参数:innodb_lock_wait_timeout设置锁等待的时间是50s，一旦数据库锁超过这个时间就会报错。 mysql> SHOW GLOBAL VARIABLES LIKE 'innodb_lock_wait_timeout'; +--------------------------+-------+ | Variable_name | Value | +--------------------------+-------+ | innodb_lock_wait_timeout | 50 | +--------------------------+-------+ 1 row in set (0.00 sec) mysql> SET GLOBAL innodb_lock_wait_timeout=120; Query OK, 0 rows affected (0.00 sec) mysql> SHOW GLOBAL VARIABLES LIKE 'innodb_lock_wait_timeout'; +--------------------------+-------+ | Variable_name | Value | +--------------------------+-------+ | innodb_lock_wait_timeout | 120 | +--------------------------+-------+ 1 row in set (0.00 sec)