MySQL can't connect - why?

Question

MySQL

Good afternoon.
After restarting the MySQL server, it does not want to start, it gives a message:

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

I look whether it is running or not, and also whether it was in autoload

# ps ax| grep mysql
31936 pts/0 S+ 0:00 grep mysql
chkconfig --list | grep mysql
mysqld 0:off 1:off 2:on 3:on 4:on 5:on 6:off

If run manually it runs fine.

service mysqld start Start
mysqld: [ OK ]

I can't figure out what's wrong

Answer 1

Try to delete or recreate '/var/lib/mysql/mysql.sock', make a backup first.

Answer 2

cat /etc/my.cnf | grep sock
make sure the socket is created where php (or whatever) is looking for it.
turn off the muscle, and see what's up with the socket.
It often happens that during a hard reboot, the muscle does not have time to remove the socket, and then it does not start