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  • MYSQL死锁

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    http://www.blogbus.com/ri0day-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)

    mysqlkill 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)

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  • 原文地址:https://www.cnblogs.com/lupeng2010/p/6264119.html
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