Getting data node connection error

[subbaraodna]

In cluster mode deployment using docker stack(docker swarm) , data node and name are deployed, am getting error Problem connecting to server: namenode:9000 in data node. can host name node be used for hdfs uri? can you guide to resolve this issue? Any support will be appreciated.

[OneCricketeer]

Yes, hostnames are possible...

What value of CORE_CONF_fs_defaultFS are you using and can you otherwise start some other container in the Swarm network and simply ping namenode?

[subbaraodna]

Thanks for your reply. I am facing yhis issue while I am running it in my client network and it is working fine in my personal gcp account. However am not sure how to nail down this networking problem.

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On Tue, 14 Jun 2022, 02:31 Jordan Moore, ***@***.***> wrote: What value of CORE_CONF_fs_defaultFS are you using? — Reply to this email directly, view it on GitHub <#128 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AZLO4KTWLFEXWE57XQ2H2KLVO546PANCNFSM5XDB6BTA> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[OneCricketeer]

When using Swarm and container service names, you'll need to verify your overlay network and its DNS server are working

https://docs.docker.com/engine/swarm/services/#connect-the-service-to-an-overlay-network