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https://issues.apache.org/jira/browse/YARN-1861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13995796#comment-13995796
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Xuan Gong commented on YARN-1861:
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bq. Can we make this explicit, instead of being an NPE? Like doing a client
call to find the current active RM or something like that?
Yes, we can do that. DONE
bq. That is what I was thinking, but I am concerned about locking etc. This
code has become a little convoluted. Per Xuan, we seem to be safe for now, so
may be look at this separately?
Yes. But I will make a note about it.
> Both RM stuck in standby mode when automatic failover is enabled
> ----------------------------------------------------------------
>
> Key: YARN-1861
> URL: https://issues.apache.org/jira/browse/YARN-1861
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Affects Versions: 2.4.0
> Reporter: Arpit Gupta
> Assignee: Karthik Kambatla
> Priority: Blocker
> Attachments: YARN-1861.2.patch, YARN-1861.3.patch, YARN-1861.4.patch,
> YARN-1861.5.patch, YARN-1861.7.patch, yarn-1861-1.patch, yarn-1861-6.patch
>
>
> In our HA tests we noticed that the tests got stuck because both RM's got
> into standby state and no one became active.
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