报错：MySQL Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock'

报错背景

进入mysql的时候报错

报错现象

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

报错原因

/var/lib/mysql 的访问权限问题。

报错解决

配置权限
# chown -R mysql:mysql /var/lib/mysql
重启mysql
# systemctl restart mysqld