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https://issues.apache.org/jira/browse/YARN-3924?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14682099#comment-14682099
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Rohith Sharma K S commented on YARN-3924:
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I agree with the concern that user should be able to obtain standby exception.I
am not sure whether this point was discussed when initially RM HA was designed.
keeping cc:\ [~ka...@cloudera.com] [~jianhe] [~xgong] [~vinodkv] for more
discussion on this.
> Submitting an application to standby ResourceManager should respond better
> than Connection Refused
> --------------------------------------------------------------------------------------------------
>
> Key: YARN-3924
> URL: https://issues.apache.org/jira/browse/YARN-3924
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: resourcemanager
> Reporter: Dustin Cote
> Assignee: Ajith S
> Priority: Minor
>
> When submitting an application directly to a standby resource manager, the
> resource manager responds with 'Connection Refused' rather than indicating
> that it is a standby resource manager. Because the resource manager is aware
> of its own state, I feel like we can have the 8032 port open for standby
> resource managers and reject the request with something like 'Cannot process
> application submission from this standby resource manager'.
> This would be especially helpful for debugging oozie problems when users put
> in the wrong address for the 'jobtracker' (i.e. they don't put the logical RM
> address but rather point to a specific resource manager).
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