mysql启动不起来？

贫道夜探青楼

[root@m4ak ~]# service mysqld restart
ERROR! MySQL server PID file could not be found!
Starting MySQL. ERROR! The server quit without updating PID file (/mysql/mysqldir/data/m4ak.pid).



131205  6:15:00 InnoDB: 5.5.35 started; log sequence number 1596940
131205  6:15:00 [Note] Server hostname (bind-address): '0.0.0.0'; port: 3306
131205  6:15:00 [Note]   - '0.0.0.0' resolves to '0.0.0.0';
131205  6:15:00 [Note] Server socket created on IP: '0.0.0.0'.
131205  6:15:01 [Note] Event Scheduler: Loaded 0 events
131205  6:15:01 [Note] /usr/local/mysql/bin/mysqld: ready for connections.
Version: '5.5.35-log'  socket: '/usr/local/mysql/data/mysql.sock'  port: 3306  Source distribution
131205 06:17:53 mysqld_safe A mysqld process already exists
131205  6:26:24 [Note] /usr/local/mysql/bin/mysqld: Normal shutdown

131205  6:26:24 [Note] Event Scheduler: Purging the queue. 0 events
131205  6:26:24  InnoDB: Starting shutdown...
131205  6:26:25  InnoDB: Shutdown completed; log sequence number 1596940
131205  6:26:25 [Note] /usr/local/mysql/bin/mysqld: Shutdown complete

131205 06:26:25 mysqld_safe mysqld from pid file /usr/local/mysql/data/m4ak.pid ended

各种搜索，找了一个上午，没解决，求高人。

action08

131205 06:17:53 mysqld_safe A mysqld process already exists

chenyx

ps -ef | grep mysql检查下是否有mysql的进程,kill掉再试试

h101com

kill 再来。

zongg

新安装的吗？ 还是在使用的了？

贫道夜探青楼

现在好了，我朋友说，

改了一下mysql的启动默认以mysql用户启动 不已root身份启动    ---------------------属主改一下是可以的

不懂为什么要这么做。