linux mysql启动错误

最新推荐文章于 2024-04-02 16:20:55 发布

转载最新推荐文章于 2024-04-02 16:20:55 发布 · 52 阅读

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原文链接：http://www.cnblogs.com/xiao0/archive/2012/09/04/2670628.html

本文详细描述了如何解决MySQL启动时遇到的错误，并通过创建必要的目录和符号链接来配置本地服务器连接，最终实现成功启动MySQL服务并解决连接问题。

启动mysql时报错：
Starting mysqld daemon with databases from /var/lib/mysql
STOPPING server from pid file /var/run/mysqld/mysqld.pid
071112 00:22:06 mysqld ended
查看日志：
＃less /var/log/mysqld.log
其中有一段如下：

071112 0:22:06 [ERROR] /usr/local/mysql/bin/mysqld: Can't create/write to file '/var/run/mysqld/mysqld.pid' (Errcode: 2)
071112 0:22:06 [ERROR] Can't start server: can't create PID file: No such file or directory
071112 00:22:06 mysqld ended
#cd /var/run/
#ls

mysqld目录不存在，创建它：  -------------------------------------------这是重点

#mkdir /var/run/mysqld
#cd /var/run/mysqld

创建文件mysqld.pid：

#touch mysqld.pid
#cd..
#chown -R mysql mysqld .
#cd /usr/local/mysql/
#bin/mysqld_safe --user=mysql &
nohup: ignoring input and redirecting stderr to stdout
Starting mysqld daemon with databases from /var/lib/mysql
能正常启动
#bin/mysqladmin -u root password root
又出错
[root@localhost mysql]# bin/mysqladmin -u root password root
bin/mysqladmin: connect to server at 'localhost' failed
error: 'Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)'
Check that mysqld is running and that the socket: '/tmp/mysql.sock' exists!
[root@localhost mysql]# bin/mysql -u root -p
Enter password:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
分析：是/tmp/mysql.sock 不存在

# cd /var/lib/mysql/
由于mysql 默认的mysql.sock 是在/var/lib/mysql/mysql.sock，创建符号连接：

# ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock      -----------------------------这是重点
# bin/mysql -u root
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 1
Server version: 5.0.45 MySQL Community Server (GPL)
Type 'help;' or 'h' for help. Type 'c' to clear the buffer.
mysql>

转载于:https://www.cnblogs.com/xiao0/archive/2012/09/04/2670628.html