HDC调试需求开发（15万预算）,能者速来！>>>
各位好，遇到一个问题。现在的项目是基于tinkphp上面二次开发的系统，目前发现系统经常出现访问时快时慢的情况，排查了一下数据库、还有web服务器使用率都不高。
但是排查日志的时候，发现在调用数据库的时候，经常出现dump情况。麻烦各位帮忙看下，到底是怎么回事。 [07-May-2017 17:00:18] [pool www] pid 1195 script_filename = /usr/local/nginx/html/index.php [0x00007fd033454a90] query() /usr/local/nginx/html/ThinkPHP/Library/Think/Db/Driver/Mysqli.class.php:88 [0x00007fd0334547d8] query() /usr/local/nginx/html/ThinkPHP/Library/Think/Db.class.php:773 [0x00007fd0334539a8] select() /usr/local/nginx/html/ThinkPHP/Library/Think/Model.class.php:618 [0x00007fd0334535d0] select() /usr/local/nginx/html/Application/Common/Api/ConfigApi.class.php:20 [0x00007fff42f22c90] lists() unknown:0 [0x00007fd033453290] call_user_func_array() /usr/local/nginx/html/Application/Common/Common/function.php:1054 [0x00007fd03344f360] api() /usr/local/nginx/html/ThinkPHP/Library/Think/Dispatcher.class.php:197 [0x00007fd03344eb08] dispatch() /usr/local/nginx/html/ThinkPHP/Library/Think/App.class.php:36 [0x00007fd03344e930] init() /usr/local/nginx/html/ThinkPHP/Library/Think/App.class.php:184 [0x00007fd03344d128] run() /usr/local/nginx/html/ThinkPHP/Library/Think/Think.class.php:121 [0x00007fd03344bae0] start() /usr/local/nginx/html/ThinkPHP/ThinkPHP.php:96 [0x00007fd03344b440] +++ dump failed [07-May-2017 17:00:25] [pool www] pid 1196 script_filename = /usr/local/nginx/html/index.php [0x00007fd033454c28] query() /usr/local/nginx/html/ThinkPHP/Library/Think/Db/Driver/Mysqli.class.php:88 [0x00007fd033454798] query() /usr/local/nginx/html/ThinkPHP/Library/Think/Db/Driver/Mysqli.class.php:209 [0x00007fd033453d88] getFields() /usr/local/nginx/html/ThinkPHP/Library/Think/Model.class.php:138 [0x00007fd033453a10] flush() /usr/local/nginx/html/ThinkPHP/Library/Think/Model.class.php:125 [0x00007fd033453498] _checkTableInfo() /usr/local/nginx/html/ThinkPHP/Library/Think/Model.class.php:1510 [0x00007fd033453018] db() /usr/local/nginx/html/ThinkPHP/Library/Think/Model.class.php:99 [0x00007fd033452888] __construct() /usr/local/nginx/html/ThinkPHP/Common/functions.php:625 [0x00007fd033451a38] D() /usr/local/nginx/html/Application/Mob/Model/ActivityModel.class.php:430 [0x00007fd033450c20] get_ActivityHallList() /usr/local/nginx/html/Application/Mob/Controller/EnterpriseController.class.php:1285 [0x00007fff42f22c50] getMore() unknown:0 [0x00007fd03344f2f8] invoke() /usr/local/nginx/html/ThinkPHP/Library/Think/App.class.php:155 [0x00007fd03344f120] exec() /usr/local/nginx/html/ThinkPHP/Library/Think/App.class.php:193 [0x00007fd03344d918] run() /usr/local/nginx/html/ThinkPHP/Library/Think/Think.class.php:121 [0x00007fd03344c2d0] start() /usr/local/nginx/html/ThinkPHP/ThinkPHP.php:96 [0x00007fd03344bc30] +++ dump failed [07-May-2017 17:00:25] [pool www] pid 1217 script_filename = /usr/local/nginx/html/index.php [0x00007fd033457c70] is_file() /usr/local/nginx/html/ThinkPHP/Library/Think/Cache/Driver/File.class.php:79 [0x00007fd033457690] get() /usr/local/nginx/html/ThinkPHP/Common/functions.php:1245 [0x00007fd033457590] S() /usr/local/nginx/html/Application/Common/Model/UserModel.class.php:147 [0x00007fd033457228] read_query_user_cache() /usr/local/nginx/html/Application/Common/Model/UserModel.class.php:183 [0x00007fd033455ae0] getCachedFields() /usr/local/nginx/html/Application/Common/Model/UserModel.class.php:37 [0x00007fd033455908] query_user() /usr/local/nginx/html/Application/Common/Common/query_user.php:18 [0x00007fd033455230] query_user() /usr/local/nginx/html/Application/People/Widget/HomeBlockWidget.class.php:34 [0x00007fd0334550a8] assignUser() /usr/local/nginx/html/Application/People/Widget/HomeBlockWidget.class.php:18 [0x00007fff42f22360] render() unknown:0 [0x00007fd033454dc8] call_user_func_array() /usr/local/nginx/html/ThinkPHP/Common/functions.php:771 [0x00007fd033454cd8] R() /usr/local/nginx/html/ThinkPHP/Common/functions.php:1176 [0x00007fd0334524e0] W() /usr/local/nginx/html/Runtime/Cache/Home/769e70f2e46f34ceb60619bbda5e4691.php:337 [0x00007fd033452390] +++ dump failed