Fatal error: Uncaught PDOException: PDO::__construct(): php_network_getaddresses: getaddrinfo for quanservice.mysql.rds.aliyuncs.com failed: Name or service not known in /var2/www/QuanApiClient/lib/DataAccess/MysqlDataAccess.php:198 Stack trace: #0 /var2/www/QuanApiClient/lib/DataAccess/MysqlDataAccess.php(198): PDO->__construct() #1 /var2/www/QuanApiClient/lib/DataAccess/MysqlDataAccess.php(207): Lib\DataAccess\MysqlDataAccess->connect() #2 /var2/www/QuanApiClient/lib/DataAccess/MysqlDataAccess.php(220): Lib\DataAccess\MysqlDataAccess->open() #3 /var2/www/QuanApiClient/lib/DataAccess/MysqlDataAccess.php(49): Lib\DataAccess\MysqlDataAccess->createStatement() #4 /var2/www/QuanApiClient/app/Biz/BizLocalAccount.php(31): Lib\DataAccess\MysqlDataAccess->executeQueryRow() #5 /var2/www/QuanApiClient/app/AppCore.php(90): QuanApiClient\Biz\BizLocalAccount->CheckAuth() #6 /var2/www/QuanApiClient/app/AppCore.php(38): QuanApiClient\AppCore->checkAuth() #7 /var2/www/QuanApiClient/index.php(21): QuanApiClient\AppCore->run() #8 {main} Next PDOException: SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo for quanservice.mysql.rds.aliyuncs.com failed: Name or service not known in /var2/www/QuanApiClient/lib/DataAccess/MysqlDataAccess.php:198 Stack trace: #0 /var2/www/QuanApiClient/lib/DataAccess/MysqlDataAccess.php(198): PDO->__construct() #1 /var2/www/QuanApiClient/lib/DataAccess/MysqlDataAccess.php(207): Lib\DataAccess\MysqlDataAccess->connect() #2 /var2/www/QuanApiClient/lib/DataAccess/MysqlDataAccess.php(220): Lib\DataAccess\MysqlDataAccess->open() #3 /var2/www/QuanApiClient/lib/DataAccess/MysqlDataAccess.php(49): Lib\DataAccess\MysqlDataAccess->createStatement() #4 /var2/www/QuanApiClient/app/Biz/BizLocalAccount.php(31): Lib\DataAccess\MysqlDataAccess->executeQueryRow() #5 /var2/www/QuanApiClient/app/AppCore.php(90): QuanApiClient\Biz\BizLocalAccount->CheckAuth() #6 /var2/www/QuanApiClient/app/AppCore.php(38): QuanApiClient\AppCore->checkAuth() #7 /var2/www/QuanApiClient/index.php(21): QuanApiClient\AppCore->run() #8 {main} thrown in /var2/www/QuanApiClient/lib/DataAccess/MysqlDataAccess.php on line 198