Class: PDOException:

Exception: SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo for rm-2zeu15h23144ugr5tro.mysql.rds.aliyuncs.com failed: Name or service not known

File=/var/www/loserhub/app/config/services.php Line=39 

#0 [internal function]: PDO->__construct('mysql:charset=u...', 'loserhub', Object(SensitiveParameterValue), Array)

#1 [internal function]: Phalcon\Db\Adapter\Pdo\AbstractPdo->connect(Array)

#2 [internal function]: Phalcon\Db\Adapter\Pdo\AbstractPdo->__construct(Array)

#3 /var/www/loserhub/app/config/services.php(39): Phalcon\Db\Adapter\Pdo\Mysql->__construct(Array)

#4 [internal function]: Closure->{closure}()

#5 [internal function]: Phalcon\Di\Service->resolve(NULL, Object(Phalcon\Di\FactoryDefault))

#6 [internal function]: Phalcon\Di\Di->get('db', NULL)

#7 [internal function]: Phalcon\Di\Di->getShared('db')

#8 [internal function]: Phalcon\Mvc\Model\Manager->getConnection(Object(Loserhub\Backend\Models\ContentTypes), Array)

#9 [internal function]: Phalcon\Mvc\Model\Manager->getReadConnection(Object(Loserhub\Backend\Models\ContentTypes))

#10 [internal function]: Phalcon\Mvc\Model->getReadConnection()

#11 [internal function]: Phalcon\Mvc\Model\Query->getReadConnection(Object(Loserhub\Backend\Models\ContentTypes), Array, Array, Array)

#12 [internal function]: Phalcon\Mvc\Model\Query->executeSelect(Array, Array, Array)

#13 [internal function]: Phalcon\Mvc\Model\Query->execute()

#14 /var/www/loserhub/app/modules/frontend/controllers/ContentsController.php(78): Phalcon\Paginator\Adapter\QueryBuilder->paginate()

#15 [internal function]: Loserhub\Frontend\Controllers\ContentsController->topcategoryAction()

#16 [internal function]: Phalcon\Dispatcher\AbstractDispatcher->callActionMethod(Object(Loserhub\Frontend\Controllers\ContentsController), 'topcategoryActi...', Array)

#17 [internal function]: Phalcon\Dispatcher\AbstractDispatcher->dispatch()

#18 /var/www/loserhub/app/bootstrap_web.php(100): Phalcon\Mvc\Application->handle('/contents/topca...')

#19 /var/www/loserhub/public/index.php(17): require('/var/www/loserh...')

#20 {main}