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  • Starting MySQL ** mysqld_safe Directory '/var/lib/mysql' for UNIX socket file don't exists

    本地虚拟机(CentOS6.8)启动MySQL(MySQL5.6.35)服务失败

    [root@VMUest ~]# service mysql status
     ERROR! MySQL is not running, but lock file (/var/lock/subsys/mysql) exists
    [root@VMUest ~]# rm -f /var/lock/subsys/mysql
    [root@VMUest ~]# service mysql status
     ERROR! MySQL is not running
    [root@VMUest ~]# service mysql start
    Starting MySQL.170331 10:18:30 mysqld_safe Directory '/var/lib/mysql' for UNIX socket file don't exists.
     ERROR! The server quit without updating PID file (/usr/local/mysql/data/VMUest.pid).

    前一天就折腾了mysqlsla,今天MySQL就启动不了。参考修改CentOS6.5主机名引起MySQL5.6.35服务问题里面的方法没有效果。各种纠结都没用,最后想起启动MySQL服务时,会优先在/etc/目录下查找my.cnf

    [root@VMUest ~]# ll /etc/my.cnf
    -rw-r--r--. 1 root root 251 Jan 27 05:41 /etc/my.cnf
    [root@VMUest ~]# cat /etc/my.cnf
    [mysqld]
    datadir=/var/lib/mysql
    socket=/var/lib/mysql/mysql.sock
    user=mysql
    # Disabling symbolic-links is recommended to prevent assorted security risks
    symbolic-links=0
    
    [mysqld_safe]
    log-error=/var/log/mysqld.log
    pid-file=/var/run/mysqld/mysqld.pid
    [root@VMUest ~]# ll /etc/ |grep my
    -rw-r--r--.  1 root root    251 Jan 27 05:41 my.cnf
    [root@VMUest ~]# mv /etc/my.cnf /etc/my.cnf.bak

    还真有/etc/my.cnf,里面设置有socket=/var/lib/mysql/mysql.sock。我是使用源码在虚拟机上安装的MySQL,安装目录为/usr/local/mysql/,相关配置文件都保存在此目录。并且有检查/etc/my.cnf文件是否存在(存在就将其重命名/删除)。怎么又冒出来了?是折腾mysqlsla时出来的?

    [root@VMUest ~]# service mysql start
    Starting MySQL........................................................... SUCCESS! 

    把/etc/my.cnf重命名后,MySQL服务顺利启动~

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  • 原文地址:https://www.cnblogs.com/ShanFish/p/6652174.html
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