/**
* 使用只读数据库连接
*
* @author bobit
* Mon Sep 24 16:37:49 CST 200716:37:49
*/
public function useReadonlyDb()
{
//$old_db_host 未被使用 by terry at Thu Feb 19 11:37:44 CST 2009
//$old_db_host = $this->_getDbConnectionHost();
if (!self::$_readDbServerNameOfThisSession) {
$int = mt_rand(1, 3);
self::$_readDbServerNameOfThisSession = 'read' . $int;
}
//Watt_Log::addLog("[{$this->_getDbConnectionHost()}-{$this->_conn}]Prepare change connection to READONLY DB server", Watt_Log::LEVEL_DEBUG, 'DB_CONTROL', '', '', __FILE__.__LINE__);
$this->reconnect(self::$_readDbServerNameOfThisSession);
//Watt_Log::addLog("[{$this->_getDbConnectionHost()}-{$this->_conn}]Connection was changed", Watt_Log::LEVEL_DEBUG, 'DB_CONTROL', '', '', __FILE__.__LINE__);
if ($this->_debug) {
Watt_Debug::addInfoToDefault('', "Connected to READONLY DB server[{$this->_getDbConnectionHost()}:{$this->_conn}]");
}
}
