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(332) "SELECT tvshop.start_time,tvshop.end_time,tvshop.product_name,tvshop.LD_SKU FROM sdb_b2c_tvshop as tvshop WHERE tvshop.tv_id = 1000001 and tvshop.start_time>=1710777600 and tvshop.start_time<1710863999 group by tvshop.start_time order by tvshop.start_time" )tvshop.php:21
#5b2c_mdl_tvshop->gettodaytv()tvshop.php:36
#6b2c_ctl_site_tvshop->showlist()
#7call_user_func_array(...array(2) { [0]=> object(b2c_ctl_site_tvshop)#23 (27) { ["color_id"]=> int(6) ["style_id"]=> int(7) ["tvType"]=> int(7) ["member":protected]=> array(0) { } ["__theme":"site_controller":private]=> NULL ["__tmpl":"site_controller":private]=> NULL ["__tmpl_file":"site_controller":private]=> NULL ["__tmpl_main_app_id":"site_controller":private]=> NULL ["__widgets_css":"site_controller":private]=> array(0) { } ["__finish_modifier":"site_controller":private]=> array(0) { } ["__cachecontrol":"site_controller":private]=> array(4) { ["access"]=> string(6) "public" ["no-cache"]=> string(0) "" ["no-store"]=> string(0) "" ["max-age"]=> string(9) "max-age=1" } ["transaction_start"]=> bool(false) ["contentType"]=> string(23) "text/html;charset=utf-8" ["enable_strip_whitespace"]=> bool(false) ["is_splash"]=> bool(false) ["pagedata"]=> array(2) { ["loginCondition"]=> int(1) ["date"]=> array(7) { [0]=> int(1710259200) [1]=> int(1710345600) [2]=> int(1710432000) [3]=> int(1710518400) [4]=> int(1710604800) [5]=> int(1710691200) [6]=> int(1710777600) } } ["force_compile"]=> int(0) ["_tag_stack"]=> array(0) { } ["_end_message"]=> NULL ["_compiler":"base_render":private]=> NULL ["_files"]=> array(0) { } ["_tpl_key_prefix"]=> array(0) { } ["_ignore_pre_display"]=> bool(false) ["app"]=> object(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://www.ghs.net/public/app/b2c/statics" ["res_full_url"]=> string(41) "http://www.ghs.net/public/app/b2c/statics" ["lang_url"]=> string(38) "http://www.ghs.net/public/app/b2c/lang" ["lang_full_url"]=> string(38) "http://www.ghs.net/public/app/b2c/lang" ["widgets_url"]=> string(41) "http://www.ghs.net/public/app/b2c/widgets" ["widgets_full_url"]=> string(41) "http://www.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 } ["params"]=> array(0) { } ["_request"]=> object(base_component_request)#12 (12) { ["_app":protected]=> string(3) "b2c" ["_app_key":protected]=> string(3) "app" ["_ctl":protected]=> string(11) "site_tvshop" ["_ctl_key":protected]=> string(3) "ctl" ["_act":protected]=> string(8) "showlist" ["_act_key":protected]=> string(3) "act" ["_params":protected]=> array(0) { } ["_ext_param_source":protected]=> array(2) { [0]=> string(3) "GET" [1]=> string(4) "POST" } ["_request_uri":protected]=> string(21) "/tvshop-showlist.html" ["_core_url":protected]=> NULL ["_path_info":protected]=> NULL ["_api":protected]=> NULL } ["_response"]=> object(base_component_response)#13 (5) { ["_headers":protected]=> array(0) { } ["_raw_headers":protected]=> array(0) { } ["_http_response_code":protected]=> int(200) ["_is_redirect":protected]=> bool(false) ["_bodys":protected]=> array(0) { } } } [1]=> string(8) "showlist" } ,...array(0) { } )router.php:615
#8site_router->default_dispatch()router.php:499
#9site_router->dispatch('tvshop-showlist.html')kernel.php:165
#10kernel::boot()index.php:90