mysql使用出现错误：mysqld dead but subsys locked

现象：

　　登陆时候出现如下信息

　　

[root@localhost home]# mysql -uroot -p123456
mysql: [Warning] Using a password on the command line interface can be insecure.
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

[root@localhost home]#

查看mysql状态：

[root@localhost home]# service mysqld status
mysqld dead but subsys locked
[root@localhost home]#

解决方法：　　修改mysqld的权限

　　　　　　chown -R mysql.mysql /var/run/mysqld