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https://issues.apache.org/jira/browse/YARN-24?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13590015#comment-13590015
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Alejandro Abdelnur commented on YARN-24:
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if we take the NM to unhealthy, then what will try to reset it back to healthy? 
I think the simplest way to handle this is to remove the creation of the dir on 
init and do that on app start time.
                
> Nodemanager fails to start if log aggregation enabled and namenode unavailable
> ------------------------------------------------------------------------------
>
>                 Key: YARN-24
>                 URL: https://issues.apache.org/jira/browse/YARN-24
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 0.23.3, 2.0.0-alpha
>            Reporter: Jason Lowe
>            Assignee: Sandy Ryza
>         Attachments: YARN-24.patch
>
>
> If log aggregation is enabled and the namenode is currently unavailable, the 
> nodemanager fails to startup.

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