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https://issues.apache.org/jira/browse/YARN-6815?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Subru Krishnan updated YARN-6815:
---------------------------------
    Attachment: YARN-6815-YARN-2915.v3.patch

Thanks [~curino] for reviewing the patch. I updated the patch to address your 
comments.

> [Bug] FederationStateStoreFacade return behavior should be consistent 
> irrespective of whether caching is enabled or not
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-6815
>                 URL: https://issues.apache.org/jira/browse/YARN-6815
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Subru Krishnan
>            Assignee: Subru Krishnan
>         Attachments: YARN-6815-YARN-2915.v1.patch, 
> YARN-6815-YARN-2915.v2.patch, YARN-6815-YARN-2915.v3.patch
>
>
> {{FederationStateStoreFacade::getSubCluster/getPolicyConfiguration}} returns 
> null if caching is enabled or throws YarnException if caching is disabled if 
> the queried entity is absent. This jira proposes to make the return 
> consistent to ensure correctness of clients like {{RouterPolicyFacade}}.



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