1

ERROR2002(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：

1

2

3

4

[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,

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：

1

2

3

4

5

6

7

8

9

10

11

12

[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

3、php连接mysql服务提示"Can't connect to local MySQL server through socket..."的解决方法

有时候mysql服务正常运行,用户名密码也完全正确，使用php的mysql_connect函数却连接不了mysql，调用php的mysql_error()函数提示“Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock'”，这是我们需要修改/etc/php.ini文件。

在/etc/php.ini文件中"[MySQL]"项下找到"mysql.default_socket"，并设置其值指向正确的mysql服务socket文件即可，如:

1

2

3

[MySQL]

...省略n行...

mysql.default_socket="/storage/db/mysql/mysql.sock"

4、python连接mysql提示"Can't connect to local MySQL server through socket..."的解决方法:

在连接mysql数据库函数中指定socket文件，如下：

1

2

3

4

5

6

7

8

#!/usr/bin/python

fromMySQLdbimportconnect

conn=connect(db="pzy",user="root",host="localhost",unix_socket="/storage/db/mysql/mysql.sock")

cur=conn.cursor()

count=cur.execute("show databases")

print'there has %s dbs'%count

conn.commit()

conn.close()

5. php pdo连接mysql提示"Can't connect to local MySQL server through socket..."的解决方法:

同样在连接字符串添加mysql socket文件的位置即可，如下:

1

2

3

4

5

6

7

8

$dsn="mysql:host=localhost;dbname=pzy;unix_socket=/storage/db/mysql/mysql.sock";

$db=newPDO($dsn,'root','');

$rs=$db->query("SELECT * FROM qrtest");

while($row=$rs->fetch()){

print_r($row);

}

?>