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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3924) Submitting an application to standby ResourceManager should respond better than Connection Refused
Date Tue, 11 Aug 2015 17:13:46 GMT

    [ 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:
-----------------------------------------

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:\ [~kasha@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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