pinxiong edited a comment on issue #8225: URL: https://github.com/apache/dubbo/issues/8225#issuecomment-892599755
#### Environment + Nacos: 1.4.2 + Souce Code: https://github.com/pinxiong/spring-boot-dubbo-nacos-demo + OS: Cent OS7 I was trying to use docker run `Nacos` and then run `shop-service-provider` and `shop-service-consumer` to reproduce this issu again. I found some errors in `logs/nacos/remote.log` ```java 2021-08-04 11:39:26.523 INFO [main :remote.client] [1fa7febd-66d0-4d0a-89f7-558273620423]RpcClient init, ServerListFactory =com.alibaba.nacos.client.naming.core.ServerListManager 2021-08-04 11:39:26.530 INFO [main :remote.client] [1fa7febd-66d0-4d0a-89f7-558273620423] Try to connect to server on start up, server: {serverIp='127.0.0.1', server main port=8848} 2021-08-04 11:39:27.569 ERROR [main :grpc.GrpcClient] Server check fail, please check server 127.0.0.1 ,port 9848 is available , error =java.util.concurrent.ExecutionException: com.alibaba.nacos.shaded.io.grpc.StatusRuntimeException: UNAVAILABLE: io exception 2021-08-04 11:39:27.573 INFO [main :remote.client] [1fa7febd-66d0-4d0a-89f7-558273620423] Try to connect to server on start up, server: {serverIp='127.0.0.1', server main port=8848} 2021-08-04 11:39:27.588 ERROR [main :grpc.GrpcClient] Server check fail, please check server 127.0.0.1 ,port 9848 is available , error =java.util.concurrent.ExecutionException: com.alibaba.nacos.shaded.io.grpc.StatusRuntimeException: UNAVAILABLE: io exception 2021-08-04 11:39:27.589 INFO [main :remote.client] [1fa7febd-66d0-4d0a-89f7-558273620423] Try to connect to server on start up, server: {serverIp='127.0.0.1', server main port=8848} 2021-08-04 11:39:27.597 ERROR [main :grpc.GrpcClient] Server check fail, please check server 127.0.0.1 ,port 9848 is available , error =java.util.concurrent.ExecutionException: com.alibaba.nacos.shaded.io.grpc.StatusRuntimeException: UNAVAILABLE: io exception 2021-08-04 11:39:27.598 INFO [main :remote.client] [1fa7febd-66d0-4d0a-89f7-558273620423]Register server push request handler:com.alibaba.nacos.common.remote.client.RpcClient$ConnectResetRequestHandler 2021-08-04 11:39:27.599 INFO [main :remote.client] [1fa7febd-66d0-4d0a-89f7-558273620423]Register server push request handler:com.alibaba.nacos.common.remote.client.RpcClient$4 2021-08-04 11:39:27.599 INFO [main :remote.client] [1fa7febd-66d0-4d0a-89f7-558273620423]Register server push request handler:com.alibaba.nacos.client.naming.remote.gprc.NamingPushRequestHandler 2021-08-04 11:39:27.600 INFO [main :remote.client] [1fa7febd-66d0-4d0a-89f7-558273620423]Registry connection listener to current client:com.alibaba.nacos.client.naming.remote.gprc.NamingGrpcConnectionEventListener 2021-08-04 11:39:27.600 INFO [com.alibaba.nacos.client.remote.worker:remote.client] [1fa7febd-66d0-4d0a-89f7-558273620423] try to re connect to a new server ,server is not appointed,will choose a random server. 2021-08-04 11:39:27.632 ERROR [com.alibaba.nacos.client.remote.worker:grpc.GrpcClient] Server check fail, please check server 127.0.0.1 ,port 9848 is available , error =java.util.concurrent.ExecutionException: com.alibaba.nacos.shaded.io.grpc.StatusRuntimeException: UNAVAILABLE: io exception 2021-08-04 11:39:27.756 ERROR [com.alibaba.nacos.client.remote.worker:grpc.GrpcClient] Server check fail, please check server 127.0.0.1 ,port 9848 is available , error =java.util.concurrent.ExecutionException: com.alibaba.nacos.shaded.io.grpc.StatusRuntimeException: UNAVAILABLE: io exception 2021-08-04 11:39:27.757 INFO [com.alibaba.nacos.client.remote.worker:remote.client] [1fa7febd-66d0-4d0a-89f7-558273620423] fail to connect server,after trying 1 times, last try server is {serverIp='127.0.0.1', server main port=8848},error=unknown 2021-08-04 11:39:27.978 ERROR [com.alibaba.nacos.client.remote.worker:grpc.GrpcClient] Server check fail, please check server 127.0.0.1 ,port 9848 is available , error =java.util.concurrent.ExecutionException: com.alibaba.nacos.shaded.io.grpc.StatusRuntimeException: UNAVAILABLE: io exception ``` That make me sure there is something wrong with `Nacos`. Also, I find the related issue in [blog](https://blog.csdn.net/qq_39099625/article/details/118610964) . @gang0713 Now, I think we need to follow the [issue#6521](https://github.com/alibaba/nacos/issues/6521) and push them to help us fix this problem. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
