Too many connections

FILE: /data/wwwroot/www.dddazhe.cn/ThinkPHP/Lib/Core/Db.class.php 　LINE: 164

[24-05-09 04:22:05] /data/wwwroot/www.dddazhe.cn/ThinkPHP/Lib/Core/Db.class.php (164) DbMysqli->connect()
[24-05-09 04:22:05] /data/wwwroot/www.dddazhe.cn/ThinkPHP/Lib/Driver/Db/DbMysqli.class.php (81) Db->initConnect()
[24-05-09 04:22:05] /data/wwwroot/www.dddazhe.cn/ThinkPHP/Lib/Driver/Db/DbMysqli.class.php (209) DbMysqli->query(SHOW COLUMNS FROM `dbs_coupon_code`)
[24-05-09 04:22:05] /data/wwwroot/www.dddazhe.cn/ThinkPHP/Lib/Core/Model.class.php (135) DbMysqli->getFields(dbs_coupon_code)
[24-05-09 04:22:05] /data/wwwroot/www.dddazhe.cn/ThinkPHP/Lib/Core/Model.class.php (123) Model->flush()
[24-05-09 04:22:05] /data/wwwroot/www.dddazhe.cn/ThinkPHP/Lib/Core/Model.class.php (1176) Model->_checkTableInfo()
[24-05-09 04:22:05] /data/wwwroot/www.dddazhe.cn/ThinkPHP/Lib/Core/Model.class.php (98) Model->db(0, )
[24-05-09 04:22:05] /data/wwwroot/www.dddazhe.cn/ThinkPHP/Common/common.php (272) Model->__construct()
[24-05-09 04:22:05] /data/wwwroot/www.dddazhe.cn/Lib/Action/Home/IndexAction.class.php (28) D(CouponCode)
[24-05-09 04:22:05] () IndexAction->index()
[24-05-09 04:22:05] /data/wwwroot/www.dddazhe.cn/ThinkPHP/Lib/Core/App.class.php (171) ReflectionMethod->invoke()
[24-05-09 04:22:05] /data/wwwroot/www.dddazhe.cn/ThinkPHP/Lib/Core/App.class.php (207) App::exec()
[24-05-09 04:22:05] /data/wwwroot/www.dddazhe.cn/ThinkPHP/Lib/Core/Think.class.php (39) App::run()
[24-05-09 04:22:05] /data/wwwroot/www.dddazhe.cn/ThinkPHP/Common/runtime.php (242) Think::start()
[24-05-09 04:22:05] /data/wwwroot/www.dddazhe.cn/ThinkPHP/ThinkPHP.php (30) require(/data/wwwroot/www.dddazhe.cn/ThinkPHP/Common/runtime.php)
[24-05-09 04:22:05] /data/wwwroot/www.dddazhe.cn/index.php (160) require(/data/wwwroot/www.dddazhe.cn/ThinkPHP/ThinkPHP.php)