[jira] [Comment Edited] (YARN-10775) Federation: YARN running app web can't be unable to connect, because AppMaster can't redirect to the right address.

["fanshilun (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-10775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17550296#comment-17550296 ] 

fanshilun edited comment on YARN-10775 at 6/6/22 5:14 AM:
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Thanks a lot for the detailed design documentation, the documentation is very clear.

1.I personally think that resource manage should not assume the role of proxyserver,
I feel that this operation should be implemented on the router, the router should know the rm list, but the rm should not know the router list, each rm should be able to run independently.

2.I don't think there is a problem with letting the client know the location of rms, just like viewfs, the client will know the location of all namenodes。


was (Author: slfan1989):
Thanks a lot for the detailed design documentation, the documentation is very clear.

> Federation: YARN running app web can't be unable to connect, because AppMaster can't redirect to the right address. 
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-10775
>                 URL: https://issues.apache.org/jira/browse/YARN-10775
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: zhengchenyu
>            Assignee: zhengchenyu
>            Priority: Major
>         Attachments: YARN-10775-design-doc.001.pdf
>
>
> I setup a yarn federation cluster, I can't connect the running app web, but the completed and accepted app's web works.
> So I think need two step: 
> (a) make proxy server support federation.
> (b) make router support proxy server.
> Though it is a not difficult problem, but not easy to describe the problem. So I submit a document YARN-10775-design-doc.001.pdf to explain this.
>  
> If standalone proxyserver is enable, after step (a), the problem is solved.
> If standalone proxyserver is disable, after step (a) and (b), we use router as web proxy server, so we hide the cluster info for client, I think it is reasonable.



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