Fatal error: Uncaught Exception: mysql:host=shuidi-rds-001.mysql.rds.aliyuncs.com;port=3306,SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/www/web-php/system/class/RSF.php:510 Stack trace: #0 /home/www/web-php/system/class/Dao.php(54): RSF->get_pdo(Array) #1 /home/www/web-php/system/class/Dao.php(80): Dao->get_slave_pdo() #2 /home/www/web-php/system/class/Dao.php(386): Dao->execute('select * from `...', Array) #3 /home/www/web-php/app-core/class/dao/CacheDao.php(187): Dao->get_by_where(Array, 'order by id des...', 'limit 1', '*') #4 /home/www/web-php/app-core/class/dao/LittleTableCacheDao.php(37): Dao_CacheDao->get_by_where(Array, 'id desc', 1, '*') #5 /home/www/web-php/app-core/class/dao/CacheDao.php(282): Dao\LittleTableCacheDao->get_by_where(Array, 'id desc', 1, '*') #6 /home/www/web-php/app-core/class/dao/LittleTableCacheDao.php(67): Dao_CacheDao->get_single_by_where(Array, 'id desc', '*') #7 /home/www/web-php/app-core/class/bll/wiki/BlackList.php(71): Dao\Littl in /home/www/web-php/system/class/RSF.php on line 510