I got upgraded my linux plesk yesterday to 10.0.x then now my mysql is not starting and plesk is not starting also.
[root@lin tmp]# service psa start
Starting psa... done
Starting xinetd service... done
Starting named service... done
Starting mysqld service... failed
Starting postgresql service... failed
Starting psa-spamassassin service... done
Plesk: Starting Mail Server... already started
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
Starting mail handlers tmpfs storage
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111)
Starting psa... done
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
[root@lin tmp]# service psa start
Starting psa... done
Starting xinetd service... done
Starting named service... done
Starting mysqld service... failed
Starting postgresql service... failed
Starting psa-spamassassin service... done
Plesk: Starting Mail Server... already started
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
Starting mail handlers tmpfs storage
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111)
Starting psa... done
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)