Unknown MySQL server host 'rdsqaufjzufzefe.mysql.rds.aliyuncs.com' (1)

FILE: /data/wwwroot/htdocs/vd/fudao/_Core/Lib/Core/Db.class.php 　LINE: 162

[25-04-20 17:10:04] /data/wwwroot/htdocs/vd/fudao/_Core/Lib/Core/Db.class.php (162) DbMysql->connect()
[25-04-20 17:10:04] /data/wwwroot/htdocs/vd/fudao/_Core/Lib/Driver/Db/DbMysql.class.php (94) Db->initConnect()
[25-04-20 17:10:04] /data/wwwroot/htdocs/vd/fudao/_Core/Lib/Driver/Db/DbMysql.class.php (213) DbMysql->query(SHOW COLUMNS FROM `xjy_cg_category`)
[25-04-20 17:10:04] /data/wwwroot/htdocs/vd/fudao/_Core/Lib/Core/Model.class.php (135) DbMysql->getFields(xjy_cg_category)
[25-04-20 17:10:04] /data/wwwroot/htdocs/vd/fudao/_Core/Lib/Core/Model.class.php (123) Model->flush()
[25-04-20 17:10:04] /data/wwwroot/htdocs/vd/fudao/_Core/Lib/Core/Model.class.php (1174) Model->_checkTableInfo()
[25-04-20 17:10:04] /data/wwwroot/htdocs/vd/fudao/_Core/Lib/Core/Model.class.php (98) Model->db(0, )
[25-04-20 17:10:04] /data/wwwroot/htdocs/vd/fudao/_Core/Common/common.php (294) Model->__construct(category, xjy_cg_, )
[25-04-20 17:10:04] /data/wwwroot/htdocs/vd/fudao/Home/Lib/Action/Tst/IndexAction.class.php (209) M(category, xjy_cg_)
[25-04-20 17:10:04] () IndexAction->guiderlist()
[25-04-20 17:10:04] /data/wwwroot/htdocs/vd/fudao/_Core/Lib/Core/App.class.php (171) ReflectionMethod->invoke()
[25-04-20 17:10:04] /data/wwwroot/htdocs/vd/fudao/_Core/Lib/Core/App.class.php (207) App::exec()
[25-04-20 17:10:04] /data/wwwroot/htdocs/vd/fudao/_Core/Lib/Core/Think.class.php (39) App::run()
[25-04-20 17:10:04] /data/wwwroot/htdocs/vd/fudao/_Core/Common/runtime.php (242) Think::start()
[25-04-20 17:10:04] /data/wwwroot/htdocs/vd/fudao/_Core/ThinkPHP.php (30) require(/data/wwwroot/htdocs/vd/fudao/_Core/Common/runtime.php)
[25-04-20 17:10:04] /data/wwwroot/htdocs/vd/fudao/index.php (7) require(/data/wwwroot/htdocs/vd/fudao/_Core/ThinkPHP.php)