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SQLSTATE[HY000] [2003] Can't connect to MySQL server on 'db05.netsun' (113)

错误位置

FILE: /data/www/Netsun4.1/ThinkPHP/Library/Think/Db/Driver.class.php  LINE: 109

TRACE

#0 /data/www/Netsun4.1/ThinkPHP/Library/Think/Db/Driver.class.php(109): E('SQLSTATE[HY000]...')
#1 /data/www/Netsun4.1/ThinkPHP/Library/Think/Db/Driver.class.php(1064): Think\Db\Driver->connect()
#2 /data/www/Netsun4.1/ThinkPHP/Library/Think/Db/Driver/Mysql.class.php(47): Think\Db\Driver->initConnect(true)
#3 /data/www/Netsun4.1/ThinkPHP/Library/Think/Model.class.php(134): Think\Db\Driver\Mysql->getFields('nst_sitemap')
#4 /data/www/Netsun4.1/ThinkPHP/Library/Think/Model.class.php(122): Think\Model->flush()
#5 /data/www/Netsun4.1/ThinkPHP/Library/Think/Model.class.php(1434): Think\Model->_checkTableInfo()
#6 /data/www/Netsun4.1/ThinkPHP/Library/Think/Model.class.php(97): Think\Model->db(0, '', true)
#7 /data/www/Netsun4.1/ThinkPHP/Common/functions.php(810): Think\Model->__construct('sitemap', '', '')
#8 /data/www/Netsun4.1/Application/Home/Controller/IndexController.class.php(20): M('sitemap')
#9 /data/www/Netsun4.1/ThinkPHP/Common/functions.php(870): Home\Controller\IndexController->__construct()
#10 /data/www/Netsun4.1/ThinkPHP/Library/Think/App.class.php(89): controller('Index', '')
#11 /data/www/Netsun4.1/ThinkPHP/Library/Think/App.class.php(202): Think\App::exec()
#12 /data/www/Netsun4.1/ThinkPHP/Library/Think/Think.class.php(120): Think\App::run()
#13 /data/www/Netsun4.1/ThinkPHP/ThinkPHP.php(112): Think\Think::start()
#14 /data/www/chem/js/czchem/index.php(32): require('/data/www/Netsu...')
#15 {main}