解析mysql自动停止服务解决办法

时间：2015-01-23 来源：西部数据作者：西部数据

我想很多朋友都有碰到过mysql服务器突然自动停止或又会自动启动吧,下面我们来分析一下原因与停止的解决办法.

分析原因一:Mysql的自动备份功能可能导致数据库在备份的时候先关闭服务，而在此启动的时候服务器不响应，开始-运行-services.msc，打开windows服务找到mysql的服务并双击，点击恢复选项卡，第一次失败：默认是“不操作”,改成”重新启动服务”。

在下方的“重新启动服务：分钟后”添上“0”表示如果服务意外终止则立即重启动。点击确定使设置生效。这时候你在任务管理器里结束mysql-nt进程，会发现结束不掉，不过要注意，这样mysql.exe是停不了的，如果要停必须把刚才修改的改回来.)

分析原因二:可能是mysql连接问题

修改mysql的最大连接数, 使用内存变量修改法修改mysql的最大连接数

步骤如下,同时适用windows和linux平台:

a、客户端登录mysql，输入用户名和密码’

b、在mysql命令提示符下设置新的最大连接数为500：mysql> set global max_connections=500

c、显示当前运行的query：mysql> show processlist

d、显示当前mysql 系统参数状态：mysql> show status# k;

e、退出客户端：mysql> exit’

查看当前最大连接数只需要通过在mysqladmin所在目录下执行以下命令：mysqladmin -username -password variables |find “max_con” 即可看到。也可以使用php教程myadmin里头的mysql参数列表查看最大连接数。

缺点:重启计算机或者mysql后最大连接数又会复位成初始值，需要重新设定。

修改my.ini或my.cnf文件法（需要重启mysql），可参考同目录下mysql的配置模板（小内存、大内存、超大内存） . e windows系统下打开my.ini文件找到set-variable =max_connections=100这一行，改成需要设定的最大连接数，然后重启即可。

linux控制台下:

1、打开my.cnf文件：vi /etc/my.cnf

2 在[mysqld]段下修改max_connections的值为设定值。

注意:可能大家安装的mysql来源和版本不同,windows下mysql+iis和php+apache+mysql套件最终安装结果几乎都不相同,my.ini文件的路径可能有些不同，my.ini可能还会保留一份在c:windows目录下需要同时修改,这个方法是我在无意中发现的,经测试是可行的,下面拿出来和大家分享.

我的电脑 -> 右击 -> 服务 -> 找到 mysql服务双击新窗口中 -> 恢复 -> 第一次失败设置为重新启动服务.

下面重置失败计数设置为0 重新启动服务设置为0,就这样,就轻松搞定了mysql 自动停止的问题.

另外一种情况:

100904 22:37:27  InnoDB: Log file .ib_logfile0 did not exist: new to be created

InnoDB: Setting log file .ib_logfile0 size to 10 MB

InnoDB: Database physically writes the file full: wait...

100904 22:37:28  InnoDB: Log file .ib_logfile1 did not exist: new to be created

InnoDB: Setting log file .ib_logfile1 size to 10 MB

InnoDB: Database physically writes the file full: wait...

InnoDB: Doublewrite buffer not found: creating new

InnoDB: Doublewrite buffer created

InnoDB: Creating foreign key constraint system tables

InnoDB: Foreign key constraint system tables created

100904 22:37:29  InnoDB: Started; log sequence number 0 0

100904 22:37:29 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100904 22:37:29 [ERROR] Aborting

100904 22:37:29  InnoDB: Starting shutdown...

100904 22:37:31  InnoDB: Shutdown completed; log sequence number 0 43655

100904 22:37:31 [Note] wampmysqld: Shutdown complete

100904 22:43:42  InnoDB: Started; log sequence number 0 43655

100904 22:43:42 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100904 22:43:42 [ERROR] Aborting

100904 22:43:42  InnoDB: Starting shutdown...

100904 22:43:45  InnoDB: Shutdown completed; log sequence number 0 43655

100904 22:43:45 [Note] wampmysqld: Shutdown complete

100904 22:43:49  InnoDB: Started; log sequence number 0 43655

100904 22:43:49 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100904 22:43:49 [ERROR] Aborting

100904 22:43:49  InnoDB: Starting shutdown...

100904 22:43:52  InnoDB: Shutdown completed; log sequence number 0 43655

100904 22:43:52 [Note] wampmysqld: Shutdown complete

100905  8:23:24  InnoDB: Started; log sequence number 0 43655

100905  8:23:24 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905  8:23:24 [ERROR] Aborting

100905  8:23:24  InnoDB: Starting shutdown...

100905  8:23:27  InnoDB: Shutdown completed; log sequence number 0 43655

100905  8:23:27 [Note] wampmysqld: Shutdown complete

100905  8:23:28  InnoDB: Started; log sequence number 0 43655

100905  8:23:28 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905  8:23:28 [ERROR] Aborting

100905  8:23:28  InnoDB: Starting shutdown...

100905  8:23:30  InnoDB: Shutdown completed; log sequence number 0 43655

100905  8:23:30 [Note] wampmysqld: Shutdown complete

100905  8:41:35  InnoDB: Started; log sequence number 0 43655

100905  8:41:35 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905  8:41:35 [ERROR] Aborting

100905  8:41:35  InnoDB: Starting shutdown...

100905  8:41:37  InnoDB: Shutdown completed; log sequence number 0 43655

100905  8:41:37 [Note] wampmysqld: Shutdown complete

100905  8:41:42  InnoDB: Started; log sequence number 0 43655

100905  8:41:42 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905  8:41:42 [ERROR] Aborting

100905  8:41:42  InnoDB: Starting shutdown...

100905  8:41:45  InnoDB: Shutdown completed; log sequence number 0 43655

100905  8:41:45 [Note] wampmysqld: Shutdown complete

100905  8:47:15  InnoDB: Started; log sequence number 0 43655

100905  8:47:15 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905  8:47:15 [ERROR] Aborting

100905  8:47:15  InnoDB: Starting shutdown...

100905  8:47:17  InnoDB: Shutdown completed; log sequence number 0 43655

100905  8:47:17 [Note] wampmysqld: Shutdown complete

100905  8:54:20  InnoDB: Started; log sequence number 0 43655

100905  8:54:20 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905  8:54:20 [ERROR] Aborting

100905  8:54:20  InnoDB: Starting shutdown...

100905  8:54:23  InnoDB: Shutdown completed; log sequence number 0 43655

100905  8:54:23 [Note] wampmysqld: Shutdown complete

100905  8:54:53  InnoDB: Started; log sequence number 0 43655

100905  8:54:53 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905  8:54:53 [ERROR] Aborting

100905  8:54:53  InnoDB: Starting shutdown...

100905  8:54:55  InnoDB: Shutdown completed; log sequence number 0 43655

100905  8:54:55 [Note] wampmysqld: Shutdown complete

100905  8:58:20  InnoDB: Started; log sequence number 0 43655

100905  8:58:20 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905  8:58:20 [ERROR] Aborting

100905  8:58:20  InnoDB: Starting shutdown...

100905  8:58:22  InnoDB: Shutdown completed; log sequence number 0 43655

100905  8:58:22 [Note] wampmysqld: Shutdown complete

100905  8:59:57  InnoDB: Started; log sequence number 0 43655

100905  8:59:57 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905  8:59:57 [ERROR] Aborting

100905  8:59:57  InnoDB: Starting shutdown...

100905  9:00:00  InnoDB: Shutdown completed; log sequence number 0 43655

100905  9:00:00 [Note] wampmysqld: Shutdown complete

100905  9:02:21  InnoDB: Started; log sequence number 0 43655

100905  9:02:21 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905  9:02:21 [ERROR] Aborting

100905  9:02:21  InnoDB: Starting shutdown...

100905  9:02:23  InnoDB: Shutdown completed; log sequence number 0 43655

100905  9:02:23 [Note] wampmysqld: Shutdown complete

100905  9:02:29  InnoDB: Started; log sequence number 0 43655

100905  9:02:29 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905  9:02:29 [ERROR] Aborting

100905  9:02:29  InnoDB: Starting shutdown...

100905  9:02:31  InnoDB: Shutdown completed; log sequence number 0 43655

100905  9:02:31 [Note] wampmysqld: Shutdown complete

100905  9:08:16  InnoDB: Started; log sequence number 0 43655

100905  9:08:16 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905  9:08:16 [ERROR] Aborting

100905  9:08:16  InnoDB: Starting shutdown...

100905  9:08:18  InnoDB: Shutdown completed; log sequence number 0 43655

100905  9:08:18 [Note] wampmysqld: Shutdown complete

100905  9:08:54  InnoDB: Started; log sequence number 0 43655

100905  9:08:54 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905  9:08:54 [ERROR] Aborting

100905  9:08:54  InnoDB: Starting shutdown...

100905  9:08:56  InnoDB: Shutdown completed; log sequence number 0 43655

100905  9:08:56 [Note] wampmysqld: Shutdown complete

100905  9:35:05  InnoDB: Started; log sequence number 0 43655

100905  9:35:05 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905  9:35:05 [ERROR] Aborting

100905  9:35:05  InnoDB: Starting shutdown...

100905  9:35:08  InnoDB: Shutdown completed; log sequence number 0 43655

100905  9:35:08 [Note] wampmysqld: Shutdown complete

100905  9:38:08  InnoDB: Started; log sequence number 0 43655

100905  9:38:08 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905  9:38:08 [ERROR] Aborting

100905  9:38:08  InnoDB: Starting shutdown...

100905  9:38:10  InnoDB: Shutdown completed; log sequence number 0 43655

100905  9:38:10 [Note] wampmysqld: Shutdown complete

100905 16:18:51  InnoDB: Started; log sequence number 0 43655

100905 16:18:52 [ERROR] Do you already have another mysqld server running on port: 3306 ?

100905 16:18:52 [ERROR] Aborting

--phpfensi.com

100905 16:18:52  InnoDB: Starting shutdown...

100905 16:18:54  InnoDB: Shutdown completed; log sequence number 0 43655

100905 16:18:54 [Note] wampmysqld: Shutdown complete