无法启动mysql服务

无法启动mysql服务

尝试启动我的 mysql 服务。

/etc/init.d/mysql start

返回:

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

更远:

systemctl status mysql.service

返回:

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

我有什么想法可以了解发生了什么吗?

最新条目/var/log/mysql/mysqld.log

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

答案1

/var/lib/mysql/aria_log_control文件被另一个进程打开,因此mysqld无法启动。

检查当前谁/什么打开了文件:

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

如果该进程绝对不应该运行,请使用以下命令将其关闭:

sudo kill -SIGTERM <PID>

如果失败:

sudo kill -SIGKILL <PID>

或者重新启动。

答案2

转到您的/etc/my.cnf文件,然后检查datadirtmpdir变量。转到这些目录,并检查其中文件的权限。如果 拥有任何文件root,请将权限更改为类似的内容mysql:mysql,然后重试。


例子:

/etc/my.cnf你发现:

datadir = /var/lib/mysql

请尝试以下操作,然后再次尝试启动 mysql:

chown mysql:mysql /var/lib/mysql

答案3

问题出mysql_install_db在包mariadb-server-5.5.34-2.fc20community-mysql-server-5.5.35-1.fc20.它没有在服务器数据目录上设置适当的权限。运行以下命令来root修复它:

chown -R mysql:mysql /var/lib/mysql

学分至: https://www.moucha.cc/charon/tag/mariadb/

答案4

我的 Raspberry Pi 上出现此错误。转到/var/lib/mysql并发现一个名为raspberrypi.err.在其中我看到在启动过程中它发现了一条/etc/mysql/my.cnf它不喜欢的线。在我的例子中,有问题的行是,bind-address但这可能是一个开始寻找的好地方。

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