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https://issues.apache.org/jira/browse/MAPREDUCE-3398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158062#comment-13158062
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Mahadev konar commented on MAPREDUCE-3398:
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@Sid,
How does the NM know which application to add to ask RM to keep alive? How
does the NM detect applications that are about to expire the tokens?
Can you point me to the code in the patch?
> Log Aggregation broken in Secure Mode
> -------------------------------------
>
> Key: MAPREDUCE-3398
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3398
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2, nodemanager
> Affects Versions: 0.23.0
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
> Priority: Critical
> Fix For: 0.23.1
>
> Attachments: MR3398_v1.txt
>
>
> Log aggregation in secure mode does not work with MAPREDUCE-2977. The
> nodemanager relies on the users credentials to write out logs to HDFS. These
> credentials are currently cancelled once a job completes, before the NM can
> write out the logs.
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