Unknown MySQL server host 'hdm-138.hichina.com' (1)

FILE: /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Lib/Core/Db.class.php 　LINE: 162

[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Lib/Core/Db.class.php (162) DbMysql->connect(Unknown MySQL server host 'hdm-138.hichina.com' (1))
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Lib/Driver/Db/DbMysql.class.php (94) Db->initConnect()
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Lib/Driver/Db/DbMysql.class.php (213) DbMysql->query()
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Lib/Core/Model.class.php (135) DbMysql->getFields(SHOW COLUMNS FROM `yulin_category`)
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Lib/Core/Model.class.php (123) Model->flush(yulin_category)
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Lib/Core/Model.class.php (1174) Model->_checkTableInfo()
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Lib/Core/Model.class.php (98) Model->db()
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Common/common.php (300) Model->__construct(0, )
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/Modules/Home/Action/CommonAction.class.php (261) M()
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/Modules/Home/Action/CommonAction.class.php (22) CommonAction->getwebleft(Category, , )
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Lib/Core/Action.class.php (57) CommonAction->_initialize(Category)
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Common/common.php (331) Action->__construct(chanpinzhongxin)
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Lib/Core/App.class.php (103) A()
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Lib/Core/App.class.php (207) App::exec()
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Lib/Core/Think.class.php (39) App::run()
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Common/runtime.php (242) Think::start(Product)
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/ThinkPHP.php (30) require(/usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/Common/runtime.php)
[22-06-21 20:44:06] /usr/home/hyu3904460001/htdocs/index.php (18) require(/usr/home/hyu3904460001/htdocs/YIPU/ThinkPHP/ThinkPHP.php)