mysql启动报错-server PID file could not be found解决_MySQL

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mysql启动报错-server PID file could not be found解决

[root@yunhe ~]# service mysql stop

MySQL server PID file could not be found! [失败]

解决方案如下：

首先查看下与mysql有关的进程

[root@yunhe ~]# ps aux |grep mysq*

root 2019 0.0 0.1 6228 1392 ? S 09:22 0:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-file=/var/lib/mysql/yunhe.pid

mysql 2115 0.0 2.9 353596 30808 ? Sl 09:22 0:01 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin --user=mysql --log-error=/var/lib/mysql/yunhe.err --pid-file=/var/lib/mysql/yunhe.pid

500 4258 0.0 1.6 83432 17484 ? S 09:35 0:01 gedit /usr/share/mysql/my-medium.cnf

root 5555 0.0 0.0 5936 768 pts/0 S+ 10:04 0:00 grep mysq*

如果看到上面的内容，那说明mysql相关的进程存在，不过资源调度出现了问题（好像卡死），这时用就要把这些卡死的进程都关闭。

[root@yunhe ~]# kill 2019

[root@yunhe ~]# kill 20115

-bash: kill: (20115) - 没有那个进程

[root@yunhe ~]# kill 2115

然后重新启动mysql

[root@yunhe ~]# service mysql start

Starting MySQL... [确定]

[root@yunhe ~]# mysql -u root -p

Enter password:

Welcome to the MySQL monitor. Commands end with ; or /g.

Your MySQL connection id is 1

Server version: 5.6.4-m7 MySQL Community Server (GPL)

Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '/h' for help. Type '/c' to clear the current input statement.

mysql>

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