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

出现这个问题是因为/var/lib/mysql中没有mysql.sock文件

1. ps -efl | grep mysqld 将查询到mysql进程杀死

2. 重启mysql ：/etc/init.d/mysqld restart  或者service mysqld restart