mysql,Mysqldump,Mysqladmin,php連接mysql服務常會提示下面錯誤：
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
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ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) |
這是由於修改mysql服務的了socket文件mysql.sock位置，而導致無法通過mysql socket文件連接到mysql服務引起的，具體解決辦法如下：
1、查看mysql服務的socket文件位置：
mysql socket文件的位置是在/etc/my.cnf中設置的，cat /etc/my.cnf內容如下：
[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等於的路徑就是socket文件的位置，我們只要修改my.cnf文件,告訴mysql,mysqldump,mysqladmin mysql服務的socket位置在哪裏就可以。
2、修改my.cnf文件：
在/etc/my.cnf文件中添加如下內容，並重啓mysqls服務，即可解決mysql,mysqldump,mysqladmin的“Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock'”問題：
[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 |
3、php連接mysql服務提示"Can't connect to local MySQL server through socket..."的解決方法
有時候mysql服務正常運行,用戶名密碼也完全正確，使用php的mysql_connect函數卻連接不了mysql，調用php的
mysql_error()函數提示“Can't connect to local MySQL server through socket
'/var/lib/mysql/mysql.sock'”，這是我們需要修改/etc/php.ini文件。
在/etc/php.ini文件中"[MySQL]"項下找到"mysql.default_socket"，並設置其值指向正確的mysql服務socket文件即可，如:
[MySQL] ...省略n行... mysql.default_socket = "/storage/db/mysql/mysql.sock"
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[MySQL] ...省略n行... mysql.default_socket = "/storage/db/mysql/mysql.sock" |
4、python連接mysql提示"Can't connect to local MySQL server through socket..."的解決方法:
在連接mysql數據庫函數中指定socket文件，如下：
#!/usr/bin/python from MySQLdb import connect conn = connect(db="pzy", user="<span class='wp_keywordlink'><a href="http://www.aiezu.com/tag/root" title="root" target="_blank">root</a></span>", 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()
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#!/usr/bin/python from MySQLdb import connect 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連接mysql提示"Can't connect to local MySQL server through socket..."的解決方法:
同樣在連接字符串添加mysql socket文件的位置即可，如下:
<?php $dsn = "mysql:host=localhost;dbname=pzy;unix_socket=/storage/db/mysql/mysql.sock"; $db = new PDO($dsn, 'root', ''); $rs = $db->query("SELECT * FROM qrtest"); while($row = $rs->fetch()){ print_r($row); } ?>
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<?php $dsn = "mysql:host=localhost;dbname=pzy;unix_socket=/storage/db/mysql/mysql.sock"; $db = new PDO($dsn, 'root', ''); $rs = $db->query("SELECT * FROM qrtest"); while($row = $rs->fetch()){ print_r($row); } ?> |