试图启动我的mysql服务.

/etc/init.d/mysql start

收益：

Job failed. See system logs and 'systemctl status' for details.

进一步：

systemctl status mysql.service

收益：

mysql.service - LSB: Start the MySQL database server
      Loaded: loaded (/etc/init.d/mysql)
      Active: failed since Mon, 04 Aug 2014 16:20:43 -0400; 38s ago
     Process: 14148 ExecStop=/etc/init.d/mysql stop (code=exited, status=0/SUCCESS)
     Process: 16457 ExecStart=/etc/init.d/mysql start (code=exited, status=1/FAILURE)
      CGroup: name=systemd:/system/mysql.service

任何想法我怎么能找出发生了什么？

/var/log/mysql/mysqld.log中的最新条目：

140805 08:52:42 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
140805  8:52:42 [ERROR] mysqld: Can't lock aria control file '/var/lib/mysql/aria_log_control' for exclusive use, error: 11. Will retry for 30 seconds
140805  8:53:13 [ERROR] mysqld: Got error 'Could not get an exclusive lock; file is probably in use by another process' when trying to use aria control file '/var/lib/mysql/aria_log_contr$
140805  8:53:13 [ERROR] Plugin 'Aria' init function returned error.
140805  8:53:13 [ERROR] Plugin 'Aria' registration as a STORAGE ENGINE failed.
140805  8:53:13 [ERROR] Failed to initialize plugins.
140805  8:53:13 [ERROR] Aborting

140805  8:53:13 [Note] /usr/sbin/mysqld: Shutdown complete

140805 08:53:13 mysqld_safe mysqld from pid file /var/run/mysql/mysqld.pid ended

解决方法:

/ var / lib / mysql / aria_log_control文件由另一个进程打开,因此mysqld无法启动.

检查当前打开文件的人/用户：

lsof `/var/lib/mysql/aria_log_control`

它应该列出打开它的进程.

COMMAND  PID  USER   FD   TYPE DEVICE SIZE/OFF   NODE NAME
mysqld  1506 mysql   10uW  REG  253,1       52 263948 /var/lib/mysql/aria_log_control

如果该进程肯定不应该运行,那么关闭它：

sudo kill -SIGTERM <PID>

如果失败：

sudo kill -SIGKILL <PID>

或重启.