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https://issues.apache.org/jira/browse/YARN-4191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14900519#comment-14900519
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Steve Loughran commented on YARN-4191:
--------------------------------------

Do you mean the REST API serializing the Application Report isn't including the 
RPC URL?

Or that if an app chooses to register a REST endpoint as the port in the 
application report, the RM isn't redirecting to it?

the RM has bigger issues with REST, namely it assumes there's a user and a 
browser at the far end (YARN-2084 ), not an application sending PUT requests 
and expecting machine-parseable status codes and error text.

> Expose ApplicationMaster RPC port in ResourceManager REST endpoint
> ------------------------------------------------------------------
>
>                 Key: YARN-4191
>                 URL: https://issues.apache.org/jira/browse/YARN-4191
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: resourcemanager
>    Affects Versions: 2.7.1
>            Reporter: Richard Lee
>            Priority: Minor
>
> Currently, the ResourceManager REST endpoint returns only the trackingUrl for 
> the ApplicationMaster.  Some AMs, however, have their REST endpoints on the 
> RPC port.  However, the RM does not expose the AM RPC port via REST for some 
> reason.



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