主要是两个命令:

show processlist;
和 
kill id,id...;

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来源:http://ri0day.blogbus.com/logs/59186177.html mysql使用myisam的时候锁表比较多,尤其有慢查询的时候,造成死锁.这时需要手动kill掉locked的process.使他释放. (以前我都是重起服务)..惭愧啊.. 演示:(id 7是我用python 来连过来的一个会话,虽然是状态是sleep,为了演示,干掉他)

mysql> show processlist;
+----+------+-----------+------+---------+------+-------+------------------+
¦ Id ¦ User ¦ Host      ¦ db   ¦ Command ¦ Time ¦ State ¦ Info             ¦
+----+------+-----------+------+---------+------+-------+------------------+
¦  7 ¦ root ¦ localhost ¦ yy   ¦ Sleep   ¦  154 ¦       ¦ NULL             ¦ 
¦  8 ¦ root ¦ localhost ¦ NULL ¦ Query   ¦    0 ¦ NULL  ¦ show processlist ¦ 
+----+------+-----------+------+---------+------+-------+------------------+
2 rows in set (0.00 sec)

mysql> kill 7
    -> ;

mysql> show processlist;
+----+------+-----------+------+---------+------+-------+------------------+
¦ Id ¦ User ¦ Host      ¦ db   ¦ Command ¦ Time ¦ State ¦ Info             ¦
+----+------+-----------+------+---------+------+-------+------------------+
¦  8 ¦ root ¦ localhost ¦ NULL ¦ Query   ¦    0 ¦ NULL  ¦ show processlist ¦ 
+----+------+-----------+------+---------+------+-------+------------------+
1 row in set (0.00 sec)