无法连接数据库:php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution

>  /app/base/lib/db/connections.php:189
#0trigger_error(...string(104) "无法连接数据库:php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution" ,'256')connections.php:189
#1base_db_connections->_connect(...string(44) "rds637zp6c38m5952l72n.mysql.rds.aliyuncs.com" ,'ghsecser','GHS#ecs2018','ecstore')connections.php:178
#2base_db_connections->_rw_conn()connections.php:163
#3base_db_connections->_ro_conn()connections.php:103
#4base_db_connections->select(...string(88) "SELECT appid FROM `sdb_weixin_bind` WHERE 1 AND `sdb_weixin_bind`.appid <> '' LIMIT 0, 1" )connections.php:152
#5base_db_connections->selectlimit(...string(77) "SELECT appid FROM `sdb_weixin_bind` WHERE 1 AND `sdb_weixin_bind`.appid <> ''" ,'1','0')model.php:67
#6dbeav_model->getList('appid',...array(1) { ["appid|noequal"]=> string(0) "" } ,'0','1','')model.php:103
#7dbeav_model->getRow('appid',...array(1) { ["appid|noequal"]=> string(0) "" } )wechat.php:217
#8weixin_wechat->get_a_appid()controller.php:104
#9wap_controller->__construct(object(appobject(app)#10 (22) { ["__render":"app":private]=> NULL ["__router":"app":private]=> NULL ["__define":"app":private]=> NULL ["__taskrunner":"app":private]=> NULL ["__checkVaryArr":"app":private]=> array(0) { } ["__langPack":"app":private]=> array(0) { } ["__installed":"app":private]=> NULL ["__actived":"app":private]=> NULL ["__setting":"app":private]=> NULL ["app_id"]=> string(3) "b2c" ["app_dir"]=> string(25) "/data/www/wwwroot/app/b2c" ["public_app_dir"]=> string(32) "/data/www/wwwroot/public/app/b2c" ["res_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/statics" ["res_full_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/statics" ["lang_url"]=> string(38) "http://wap.ghs.net/public/app/b2c/lang" ["lang_full_url"]=> string(38) "http://wap.ghs.net/public/app/b2c/lang" ["widgets_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/widgets" ["widgets_full_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/widgets" ["res_dir"]=> string(40) "/data/www/wwwroot/public/app/b2c/statics" ["widgets_dir"]=> string(40) "/data/www/wwwroot/public/app/b2c/widgets" ["lang_dir"]=> string(37) "/data/www/wwwroot/public/app/b2c/lang" ["_lang_resource"]=> NULL } ))frontpage.php:13
#10wap_frontpage->__construct(object(appobject(app)#10 (22) { ["__render":"app":private]=> NULL ["__router":"app":private]=> NULL ["__define":"app":private]=> NULL ["__taskrunner":"app":private]=> NULL ["__checkVaryArr":"app":private]=> array(0) { } ["__langPack":"app":private]=> array(0) { } ["__installed":"app":private]=> NULL ["__actived":"app":private]=> NULL ["__setting":"app":private]=> NULL ["app_id"]=> string(3) "b2c" ["app_dir"]=> string(25) "/data/www/wwwroot/app/b2c" ["public_app_dir"]=> string(32) "/data/www/wwwroot/public/app/b2c" ["res_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/statics" ["res_full_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/statics" ["lang_url"]=> string(38) "http://wap.ghs.net/public/app/b2c/lang" ["lang_full_url"]=> string(38) "http://wap.ghs.net/public/app/b2c/lang" ["widgets_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/widgets" ["widgets_full_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/widgets" ["res_dir"]=> string(40) "/data/www/wwwroot/public/app/b2c/statics" ["widgets_dir"]=> string(40) "/data/www/wwwroot/public/app/b2c/widgets" ["lang_dir"]=> string(37) "/data/www/wwwroot/public/app/b2c/lang" ["_lang_resource"]=> NULL } ))goodslist.php:7
#11b2c_ctl_wxstore_goodslist->__construct(object(appobject(app)#10 (22) { ["__render":"app":private]=> NULL ["__router":"app":private]=> NULL ["__define":"app":private]=> NULL ["__taskrunner":"app":private]=> NULL ["__checkVaryArr":"app":private]=> array(0) { } ["__langPack":"app":private]=> array(0) { } ["__installed":"app":private]=> NULL ["__actived":"app":private]=> NULL ["__setting":"app":private]=> NULL ["app_id"]=> string(3) "b2c" ["app_dir"]=> string(25) "/data/www/wwwroot/app/b2c" ["public_app_dir"]=> string(32) "/data/www/wwwroot/public/app/b2c" ["res_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/statics" ["res_full_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/statics" ["lang_url"]=> string(38) "http://wap.ghs.net/public/app/b2c/lang" ["lang_full_url"]=> string(38) "http://wap.ghs.net/public/app/b2c/lang" ["widgets_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/widgets" ["widgets_full_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/widgets" ["res_dir"]=> string(40) "/data/www/wwwroot/public/app/b2c/statics" ["widgets_dir"]=> string(40) "/data/www/wwwroot/public/app/b2c/widgets" ["lang_dir"]=> string(37) "/data/www/wwwroot/public/app/b2c/lang" ["_lang_resource"]=> NULL } ))kernel.php:341
#12kernel::single(...string(25) "b2c_ctl_wxstore_goodslist" ,object(appobject(app)#10 (22) { ["__render":"app":private]=> NULL ["__router":"app":private]=> NULL ["__define":"app":private]=> NULL ["__taskrunner":"app":private]=> NULL ["__checkVaryArr":"app":private]=> array(0) { } ["__langPack":"app":private]=> array(0) { } ["__installed":"app":private]=> NULL ["__actived":"app":private]=> NULL ["__setting":"app":private]=> NULL ["app_id"]=> string(3) "b2c" ["app_dir"]=> string(25) "/data/www/wwwroot/app/b2c" ["public_app_dir"]=> string(32) "/data/www/wwwroot/public/app/b2c" ["res_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/statics" ["res_full_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/statics" ["lang_url"]=> string(38) "http://wap.ghs.net/public/app/b2c/lang" ["lang_full_url"]=> string(38) "http://wap.ghs.net/public/app/b2c/lang" ["widgets_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/widgets" ["widgets_full_url"]=> string(41) "http://wap.ghs.net/public/app/b2c/widgets" ["res_dir"]=> string(40) "/data/www/wwwroot/public/app/b2c/statics" ["widgets_dir"]=> string(40) "/data/www/wwwroot/public/app/b2c/widgets" ["lang_dir"]=> string(37) "/data/www/wwwroot/public/app/b2c/lang" ["_lang_resource"]=> NULL } ))app.php:74
#13app->controller('wxstore_goodslist')router.php:412
#14wap_router->default_dispatch('goodslist-goodslist','goodslist','-')router.php:317
#15wap_router->dispatch(...string(24) "goodslist-goodslist.html" )kernel.php:165
#16kernel::boot()index.php:90