当我们数据量增大时,数据库需要进行扩张时,或者做高可用,那么我们就需要用到同时多台mysql服务器。
通过配置:可以实现,一台主mysql,负责记录数据的变化,多台从mysql,查询结果。
修改文件:/www/configs/mysql_config.php
使用前提:已经做好数据主从同步。数据已经同步完成!
<?php
defined('IN_WZ') or exit('No direct script access allowed');
return array (
'default' =>
array (
'dbhost' => 'svn.phpip.com',
'dbname' => 'dev_wuzhicms',
'username' => 'dev_uesrs',
'password' => '1111',
'tablepre' => 'wz_',
'dbcharset' => 'utf8',
'type' => 'mysqli',
'pconnect' => 0,
'slave_server' => array('default'=>20,'slave1'=>30)
),
'slave1' =>
array (
'dbhost' => 'wuzhicms.com',
'dbname' => 'dev_wuzhicms',
'username' => 'aa',
'password' => 'bb',
'tablepre' => 'wz_',
'dbcharset' => 'utf8',
'type' => 'mysqli',
'pconnect' => 0,
),
)
?>