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https://issues.apache.org/jira/browse/YARN-4685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15282145#comment-15282145
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Wangda Tan commented on YARN-4685:
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[~rohithsharma], it seems to me that there's no consensus about how to fix this
problem yet, could we move this to 2.9?
> AM blacklisting result in application to get hanged
> ---------------------------------------------------
>
> Key: YARN-4685
> URL: https://issues.apache.org/jira/browse/YARN-4685
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Affects Versions: 2.8.0
> Reporter: Rohith Sharma K S
> Assignee: Rohith Sharma K S
> Priority: Critical
>
> AM blacklist addition or removal is updated only when RMAppAttempt is
> scheduled i.e {{RMAppAttemptImpl#ScheduleTransition#transition}}. But once
> attempt is scheduled if there is any removeNode/addNode in cluster then this
> is not updated to {{BlackListManager#refreshNodeHostCount}}. This leads
> BlackListManager to operate on stale NM's count. And application is in
> ACCEPTED state and wait forever even if blacklisted nodes are reconnected
> with clearing disk space.
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