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https://issues.apache.org/jira/browse/YARN-162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14933751#comment-14933751
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Siddharth Seth commented on YARN-162:
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Go ahead.
> nodemanager log aggregation has scaling issues with namenode
> ------------------------------------------------------------
>
> Key: YARN-162
> URL: https://issues.apache.org/jira/browse/YARN-162
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: nodemanager
> Affects Versions: 0.23.3
> Reporter: Nathan Roberts
> Assignee: Siddharth Seth
> Priority: Critical
> Attachments: YARN-162.txt, YARN-162_WIP.txt, YARN-162_v2.txt,
> YARN-162_v2.txt
>
>
> Log aggregation causes fd explosion on the namenode. On large clusters this
> can exhaust FDs to the point where datanodes can't check-in.
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