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MySql cannot start:Another MySQL daemon already running with the same unix socket

Sometimes you may got a mysql can not start issue, shows error "Another MySQL daemon already running with the same unix socket" 

[www.comfortvps.com]# service mysqld restart 
Stopping mysqld:  [  OK  ]
Another MySQL daemon already running with the same unix socket.
Starting mysqld:  [FAILED]
[www.comfortvps.com]# ps -ef | grep mysql
root      4825  4774  0 01:11 pts/0    00:00:00 grep mysql

this means mysql.sock exists

How to fix it?


Based on Centos, an additional method for getting it back up again when you run into this problem is to move mysql.sock:

[www.comfortvps.com]# mv /var/lib/mysql/mysql.sock /var/lib/mysql/mysql.sock.bak

[www.comfortvps.com]# service mysqld restart
Stopping mysqld:  [  OK  ]
Starting mysqld:  [  OK  ]

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