محتوا my.cnf یکبار خالی کن رست بده

متن ارور هم قرار میدادی بد نبود
root@server [~]# service mysql restart
MySQL server PID file could not be found! [FAILED]
Starting MySQL.....The server quit without updating PID file (/var/lib/mysql/server.rayandade.com.pid). [FAILED]
root@server [~]#