查询是否锁表

SHOW OPEN TABLES WHERE In_use > 0;

查看正在锁的事务

SELECT * FROM INFORMATION_SCHEMA.INNODB_LOCKS;

查看等待锁的事务

SELECT * FROM INFORMATION_SCHEMA.INNODB_LOCK_WAITS;

查看进程信息

SHOW PROCESSLIST;

或者

SELECT * FROM INFORMATION_SCHEMA.PROCESSLIST;

或者

SELECT * FROM SYS.PROCESSLIST;

KILL被锁住的表进程

KILL ID; (ID为 SHOW PROCESSLIST获得的ID标识号)