Unknown MySQL server host 'hdm-034.hichina.com' (1)

FILE: /usr/home/hyu2908170001/htdocs/ThinkPHP/Lib/Core/Db.class.php 　LINE: 168

[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/ThinkPHP/Lib/Core/Db.class.php (168) DbMysql->connect()
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/ThinkPHP/Lib/Driver/Db/DbMysql.class.php (96) Db->initConnect()
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/ThinkPHP/Lib/Driver/Db/DbMysql.class.php (215) DbMysql->query(SHOW COLUMNS FROM `nav_class`)
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/ThinkPHP/Lib/Core/Model.class.php (135) DbMysql->getFields(nav_class)
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/ThinkPHP/Lib/Core/Model.class.php (123) Model->flush()
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/ThinkPHP/Lib/Core/Model.class.php (1156) Model->_checkTableInfo()
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/ThinkPHP/Lib/Core/Model.class.php (98) Model->db(0, )
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/ThinkPHP/Common/common.php (280) Model->__construct(NavClass, , )
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/App/Lib/Action/BaseAction.class.php (34) M(NavClass)
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/App/Lib/Action/BaseAction.class.php (11) BaseAction->get_Menu_list(1)
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/ThinkPHP/Lib/Core/Action.class.php (57) BaseAction->_initialize()
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/ThinkPHP/Common/common.php (302) Action->__construct()
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/ThinkPHP/Lib/Core/App.class.php (101) A(En/Products)
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/ThinkPHP/Lib/Core/App.class.php (205) App::exec()
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/ThinkPHP/Lib/Core/Think.class.php (39) App::run()
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/ThinkPHP/Common/runtime.php (243) Think::start()
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/ThinkPHP/ThinkPHP.php (31) require(/usr/home/hyu2908170001/htdocs/ThinkPHP/Common/runtime.php)
[25-08-30 08:38:08] /usr/home/hyu2908170001/htdocs/index.php (9) require(/usr/home/hyu2908170001/htdocs/ThinkPHP/ThinkPHP.php)