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Ubuntu下MySQL启动不了的解决办法

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Jun 07, 2016 pm 04:08 PM

发现我们一台Ubuntu服务器上的MySQL数据库卡死了，有可能是死锁了吧，于是我尝试去使用命令service mysql restart，结果MySQL在s

发现我们一台Ubuntu服务器上的MySQL数据库卡死了，有可能是死锁了吧，于是我尝试去使用命令service mysql restart，结果MySQL在stop的时候返回stop/waiting的状态，采用service mysql status查看其状态，返回的是“mysql respawn/post-start”，就这样，MySQL没法启动了，然后，就是起不来了，在网上搜索了一阵，折腾了半个多小时，一时没找到好的办法。

最后没辙了，看到了Ubuntu下的mysql配置的修复命令 dpkg-reconfigure mysql-server-5.1，于是，我尝试使用这个命令修复了一下：

Ubuntu下MySQL启动不了的解决办法

dpkg-reconfigure mysql-server-5.1

在提示的界面中重新设置了root的密码，配置后，mysql竟然奇迹般的启动好了。

在修复这个mysql的过程中，个人稍微对这个问题的解决方式做一下分享。

1，在Ubuntu下采用命令apt-get install mysql方式后，遇到启动不了的时候，建议采用命令dpkg-reconfigure重新设置以修复mysql的问题。

2，在采用dpkg-reconfigure方式修复mysql后，会有这样一个问题，即mysql数据用户会丢失掉，所以，针对你服务器上mysql的用户，还得作一次修复，可以通过以下命令来处理：

GRANT ALL PRIVILEGES ON db.* TO user@localhost IDENTIFIED BY “pass”;

这样来还原你原来系统中的那些用户。

3，，举一反三，如果你在Ubuntu环境下，软件包是通过apt-get install方式来安装的，当该软件包出现问题的时候，通过dpkg-reconfigure命令，你都可以对原来的软件包进行修复，这样，你就可以绕过好多软件包出现的疑难杂症，达到解决问题事半功倍的目的。

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