MySQL 不断崩溃：InnoDB：无法锁定 ./ibdata1，错误：11

Question

我有一个简单的网络服务器（Debian 6.0 x86，1 GB 内存和 10 GB 可用空间的 DirectAdmin，mySQl 版本 5.5.9），但是 mySQL 服务器不断崩溃，我需要杀死所有 mySQL 进程才能重新启动它再次。

/var/log/mysql-error.log 输出：

130210 21:04:26 InnoDB: Using Linux native AIO
130210 21:04:34 InnoDB: Initializing buffer pool, size = 128.0M
130210 21:05:42 InnoDB: Completed initialization of buffer pool
130210 21:05:48 InnoDB: Initializing buffer pool, size = 128.0M
130210 21:06:22 InnoDB: Initializing buffer pool, size = 128.0M
130210 21:06:27 mysqld_safe mysqld from pid file /usr/local/mysql/data/website.pid ended
130210 21:06:29 mysqld_safe mysqld from pid file /usr/local/mysql/data/website.pid ended
130210 21:07:22 InnoDB: Completed initialization of buffer pool
130210 21:07:51 mysqld_safe mysqld from pid file /usr/local/mysql/data/website.pid ended
130210 21:08:33 InnoDB: Completed initialization of buffer pool
130210 21:12:03 [Note] Plugin 'FEDERATED' is disabled.
130210 21:12:47 InnoDB: The InnoDB memory heap is disabled
130210 21:12:47 InnoDB: Mutexes and rw_locks use InnoDB's own implementation
130210 21:12:47 InnoDB: Compressed tables use zlib 1.2.3
130210 21:12:47 InnoDB: Using Linux native AIO
130210 21:13:11 InnoDB: highest supported file format is Barracuda.
130210 21:13:23 InnoDB: Initializing buffer pool, size = 128.0M
InnoDB: The log sequence number in ibdata files does not match
InnoDB: the log sequence number in the ib_logfiles!
130210 21:14:05  InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Unable to lock ./ibdata1, error: 11
InnoDB: Check that you do not already have another mysqld process
InnoDB: using the same InnoDB data or log files.
InnoDB: Unable to lock ./ibdata1, error: 11
InnoDB: Check that you do not already have another mysqld process
InnoDB: using the same InnoDB data or log files.
InnoDB: Unable to lock ./ibdata1, error: 11
InnoDB: Check that you do not already have another mysqld process
InnoDB: using the same InnoDB data or log files.
130210 21:17:53  InnoDB: Unable to open the first data file
InnoDB: Error in opening ./ibdata1
130210 21:17:53  InnoDB: Operating system error number 11 in a file operation.

我在这里的 mySQL 网站上找到了一个主题，但是没有解决方案。

任何人的想法？

Answer 1

来自同一博客中一个评论的另一种方法：

这对我有帮助：

lsof -i:3306

然后杀死它（进程号）

杀死 -9 进程

例如 kill -9 13498

然后再次尝试重新启动 MySQL。

通过http://www.webhostingtalk.com/archive/index.php/t-1070293.html

Answer 2

使用 Ubuntu 14.04。当我尝试通过以下方式重新启动时遇到此问题

/etc/init.d/mysql restart

而是尝试

service mysql restart 

Answer 3

解决方案

复制原始文件（ibdata1、ib_logfile0、ib_logfile1...）。

mv ibdata1 ibdata1.bak 
cp -a ibdata1.bak ibdata1

http://cglreport.zhenhua.info/2008/08/mysql-error-unable-to-lock-ibdata1.html

Answer 4

此问题的最常见原因是尝试在 MySQL 已经运行时启动它。

要解决它，请关闭所有正在运行的 MySQL 实例，然后使用正常的启动脚本重新启动它，例如service mysql start.

在使用分发包版本时不要尝试手动启动 MySQL，除非您准备好迎接伤害。

Answer 5

这帮助我解决了它：

删除所有 ibdata 文件，让 mysql 创建它们。

停止mysql：

service mysql stop

转到mysql库：

cd /var/lib/mysql/

将 innodb 文件移动到某个地方以备不时之需：

mv ib* /root/

启动mysql：

service mysql start