Thread:Talk:MediaWiki/Why must the 1.22.0 access the mysql through the /var/lib/mysql/mysql.sock?

I update 1.21.3 to 1.22.0. I have set the socket of mysql to another file. But the 1.22.0 must use /var/lib/mysql/mysql.sock to access the DB. I create a symbol link file to link my socket. "php update.php" is OK. But the website still says that can not access DB.