Can't connect to local MySQL server through socket

连接Mysql提示Can’t connect to local MySQL server through socket的解决方法

2013年9月6日aiezu发表评论阅读评论

mysql,Mysqldump,Mysqladmin,php连接mysql服务常会提示下面错误：

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/<span class='wp_keywordlink_affiliate'><a href="http://www.aiezu.com/tag/mysql-2" title="查看 mysql 中的全部文章" target="_blank">mysql</a></span>/mysql.sock' (2)

1	ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

这是由于修改mysql服务的了socket文件mysql.sock位置，而导致无法通过mysql socket文件连接到mysql服务引起的，具体解决办法如下：
1、查看mysql服务的socket文件位置：
mysql socket文件的位置是在/etc/my.cnf中设置的，cat /etc/my.cnf内容如下：

[mysqld] datadir=/storage/db/mysql socket=/storage/db/mysql/mysql.sock user=mysql

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[mysqld] datadir=/storage/db/mysql socket=/storage/db/mysql/mysql.sock user=mysql

其中socket等于的路径就是socket文件的位置，我们只要修改my.cnf文件,告诉mysql,mysqldump,mysqladmin mysql服务的socket位置在哪里就可以。

2、修改my.cnf文件：
在/etc/my.cnf文件中添加如下内容，并重启mysqls服务，即可解决mysql,mysqldump,mysqladmin的“Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock'”问题：

[mysqld] datadir=/storage/db/mysql socket=/storage/db/mysql/mysql.sock [mysql] socket=/storage/db/mysql/mysql.sock [mysqldump] socket=/storage/db/mysql/mysql.sock [mysqladmin] socket=/storage/db/mysql/mysql.sock

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[mysqld] datadir=/storage/db/mysql socket=/storage/db/mysql/mysql.sock   [mysql] socket=/storage/db/mysql/mysql.sock   [mysqldump] socket=/storage/db/mysql/mysql.sock   [mysqladmin] socket=/storage/db/mysql/mysql.sock

eoiioe

Can’t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock’解决方法

启动mysql 报错：

ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock’ (2)

1、先查看 /etc/rc.d/init.d/mysqld status 看看m y s q l 是否已经启动.
另外看看是不是权限问题.

2、确定你的mysql.sock是不是在那个位置，
mysql -u 你的mysql用户名 -p -S /var/lib/mysql/mysql.sock

3、试试：service mysqld start

4、如果是权限问题，则先改变权限 #chown -R mysql:mysql /var/lib/mysql

[root@localhost ~]# /etc/init.d/mysqld start
启动 MySQL： [ 确定 ]
[root@localhost ~]# mysql -uroot -p

 

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
   原因是，/var/lib/mysql 的访问权限问题。

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

接着启动服务器

shell> /etc/init.d/mysql start

服务器正常启动后察看 /var/lib/mysql 自动生成mysql.sock文件。

但是我的问题仍然没有得到解决。

问题终于解决：
方法：    修改/etc/my.conf:
[mysqld]
datadir=/usr/local/mysql/data
socket=/var/lib/mysql/mysql.sock

[mysql.server]
user=mysql
basedir=/usr/local/mysql

If there is not currently a section called [client], add one at the bottom of the file and copy the socket= line under the [mysqld] section such as:

[client]
socket=/var/lib/mysql/mysql.sock

发现依旧如此，运行/etc/init.d/mysql start报错：    Starting MySQLCouldn't find MySQL manager or server
是mysqld服务没启，运行/usr/local/mysql/bin/mysqld_safe &

问题解决。