pengkang1991 commented on issue #8753:
URL: https://github.com/apache/apisix/issues/8753#issuecomment-1411411512

   @An-DJ @soulbird nacos服务发现 
用IP地址是正常的,但是更换为域名https://config.qa.com(192.11.1.94:8848)后就会报错503。
   The nacos service found that it is normal to use an IP address, but it will 
report an error 503 after replacing it with a domain name.
   
   discovery:
     nacos:
       host:
         - "https://config.qa.com";
           #- "http://192.11.1.92:8848";
           #- "http://192.11.1.93:8848";
           #- "http://192.11.1.94:8848";
   
   
   2023/02/01 11:19:11 [error] 49#49: *34368 [lua] init.lua:428: 
handle_upstream(): failed to set upstream: no valid upstream node: nil, client: 
109.7.4.35, server: _, request: "GET / HTTP/1.1", host: "agateway.qe.com:9080"
   2023/02/01 11:19:33 [error] 46#46: *35803 [lua] init.lua:290: 
get_url:ns/instance/list?healthyOnly=true&serviceName=nacos&namespaceId=nacos&groupName=nacos
 err:20: unable to get local issuer certificate, context: ngx.timer
   2023/02/01 11:19:33 [error] 46#46: *35803 [lua] init.lua:290: 
get_url:ns/instance/list?healthyOnly=true&serviceName=pms-edge-service&namespaceId=public&groupName=DEFAULT_GROUP
 err:20: unable to get local issuer certificate, context: ngx.timer
   2023/02/01 11:19:33 [error] 46#46: *35803 [lua] init.lua:290: 
get_url:ns/instance/list?healthyOnly=true&serviceName=APISIX-NACOS&namespaceId=public&groupName=DEFAULT_GROUP
 err:20: unable to get local issuer certificate, context: ngx.timer
   2023/02/01 11:20:11 [error] 49#49: *34368 [lua] init.lua:428: 
handle_upstream(): failed to set upstream: no valid upstream node: nil, client: 
109.7.4.35, server: _, request: "GET / HTTP/1.1", host: "agateway.qe.com:9080"
   2023/02/01 11:21:11 [error] 49#49: *34368 [lua] init.lua:428: 
handle_upstream(): failed to set upstream: no valid upstream node: nil, client: 
109.7.4.35, server: _, request: "GET / HTTP/1.1", host: "agateway.qe.com:9080"
   2023/02/01 11:22:11 [error] 49#49: *34368 [lua] init.lua:428: 
handle_upstream(): failed to set upstream: no valid upstream node: nil, client: 
109.7.4.35, server: _, request: "GET / HTTP/1.1", host: "agateway.qe.com:9080"
   
   
   


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