Home Database Mysql Tutorial 【原创】查找原始MySQL死锁ID

【原创】查找原始MySQL死锁ID

Jun 07, 2016 pm 05:41 PM
innodb deadlock

如果遇到死锁了,怎么解决呢?找到原始的锁ID,然后KILL掉一直持有的那个线程就可以了,但是众多线程,可怎么找到引起死锁的线程ID呢?MySQL发展到现在,已经非

 如果遇到死锁了,怎么解决呢?找到原始的锁ID,然后KILL掉一直持有的那个线程就可以了,服务器空间, 但是众多线程,可怎么找到引起死锁的线程ID呢? MySQL 发展到现在,已经非常强大了,这个问题很好解决。 直接从数据字典连查找。

 

我们来演示下。


线程A,我们用来锁定某些记录,假设这个线程一直没提交,或者忘掉提交了。 那么就一直存在,但是数据里面显示的只是SLEEP状态。

 

 

 

 

线程B, 我们用来进行普通的更新,网站空间,但是遇到问题了,此时不知道是哪个线程把这行记录给锁定了?

 

 

 

上面的信息很繁多,也看不清楚到底哪里是哪里。

 

不过现在,我们只要从数据字典里面拿出来这部分信息就OK了。

 

 

 

原来是线程16忘掉COMMIT了。

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