mysql ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ (2)

故障描述：

啓動mysql 報錯：
ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ (2)

解決辦法：

添加以下內容到/etc/my.conf:
[client]
socket = /tmp/mysql.sock
[mysqld]
socket = /tmp/mysql.sock