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From "Siddharth Seth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-162) nodemanager log aggregation has scaling issues with namenode
Date Fri, 16 Nov 2012 20:11:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13499108#comment-13499108
] 

Siddharth Seth commented on YARN-162:
-------------------------------------

Bobby, if you haven't gotten started working on these yet , I'm half way through a patch for
YARN-219 and YARN-220.
                
> 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: Bug
>          Components: nodemanager
>    Affects Versions: 0.23.3
>            Reporter: Nathan Roberts
>            Assignee: Vinod Kumar Vavilapalli
>            Priority: Critical
>
> 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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