数据库有时链接不上

[2017-03-22 10:01:57] production.ERROR: exception 'PDOException' with message 'SQLSTATE[HY000] [1044] Access denied for user ''@'localhost' to database 'forge'' in /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php:119
Stack trace:
#0 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(119): PDO->__construct('mysql:host=loca...', 'forge', '', Array)
#1 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(56): Illuminate\Database\Connectors\Connector->createPdoConnection('mysql:host=loca...', 'forge', '', Array)
#2 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Database/Connectors/MySqlConnector.php(24): Illuminate\Database\Connectors\Connector->createConnection('mysql:host=loca...', Array, Array)
#3 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Database/Connectors/ConnectionFactory.php(100): Illuminate\Database\Connectors\MySqlConnector->connect(Array)
#4 [internal function]: Illuminate\Database\Connectors\ConnectionFactory->Illuminate\Database\Connectors\{closure}()
#5 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Database/Connection.php(964): call_user_func(Object(Closure))
#6 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Database/Connection.php(832): Illuminate\Database\Connection->getPdo()
#7 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Database/Connection.php(717): Illuminate\Database\Connection->reconnectIfMissingConnection()
#8 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Database/Connection.php(350): Illuminate\Database\Connection->run('select * from `...', Array, Object(Closure))
#9 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(1648): Illuminate\Database\Connection->select('select * from `...', Array, true)
#10 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(1634): Illuminate\Database\Query\Builder->runSelect()
#11 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(629): Illuminate\Database\Query\Builder->get(Array)
#12 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(324): Illuminate\Database\Eloquent\Builder->getModels(Array)
#13 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(294): Illuminate\Database\Eloquent\Builder->get(Array)
#14 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(307): Illuminate\Database\Eloquent\Builder->first(Array)
#15 /data/www/infiniteSendV2/app/Http/Controllers/Api/TemplateController.php(12): Illuminate\Database\Eloquent\Builder->firstOrFail()
#16 [internal function]: App\Http\Controllers\Api\TemplateController->getShow('13', '343')
#17 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Routing/Controller.php(55): call_user_func_array(Array, Array)
#18 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(44): Illuminate\Routing\Controller->callAction('getShow', Array)
#19 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Routing/Route.php(190): Illuminate\Routing\ControllerDispatcher->dispatch(Object(Illuminate\Routing\Route), Object(App\Http\Controllers\Api\TemplateController), 'getShow')
#20 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Routing/Route.php(144): Illuminate\Routing\Route->runController()
#21 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Routing/Router.php(642): Illuminate\Routing\Route->run(Object(Illuminate\Http\Request))
#22 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Routing\Router->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#23 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php(41): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#24 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(137): Illuminate\Routing\Middleware\SubstituteBindings->handle(Object(Illuminate\Http\Request), Object(Closure))
#25 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(33): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#26 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Routing/Middleware/ThrottleRequests.php(49): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#27 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(137): Illuminate\Routing\Middleware\ThrottleRequests->handle(Object(Illuminate\Http\Request), Object(Closure), '60', '1')
#28 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(33): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#29 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(104): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#30 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Routing/Router.php(644): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#31 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Routing/Router.php(618): Illuminate\Routing\Router->runRouteWithinStack(Object(Illuminate\Routing\Route), Object(Illuminate\Http\Request))
#32 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Routing/Router.php(596): Illuminate\Routing\Router->dispatchToRoute(Object(Illuminate\Http\Request))
#33 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(267): Illuminate\Routing\Router->dispatch(Object(Illuminate\Http\Request))
#34 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure}(Object(Illuminate\Http\Request))
#35 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/CheckForMaintenanceMode.php(46): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#36 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(137): Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode->handle(Object(Illuminate\Http\Request), Object(Closure))
#37 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(33): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#38 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(104): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#39 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(149): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#40 /data/www/infiniteSendV2/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(116): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter(Object(Illuminate\Http\Request))
#41 /data/www/infiniteSendV2/public/index.php(54): Illuminate\Foundation\Http\Kernel->handle(Object(Illuminate\Http\Request))
#42 {main}  

这个只是有时候会这样,每天大约一次吧