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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4284) Allow setting yarn.nodemanager.delete.debug-delay-sec on a per-job basis
Date Fri, 25 May 2012 12:30:23 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13283340#comment-13283340
] 

Arun C Murthy commented on MAPREDUCE-4284:
------------------------------------------

Overall, I'm still unclear about why we need this when we already have tasklogs in HDFS and
they are accessible via JobHistory etc. YARN/MapReduce really needs to stay out of managing
local-storage for logs.
                
> Allow setting yarn.nodemanager.delete.debug-delay-sec on a per-job basis
> ------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4284
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4284
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>            Reporter: Ahmed Radwan
>            Assignee: Ahmed Radwan
>
> The yarn.nodemanager.delete.debug-delay-sec property is helpful in debugging jobs (inspecting
container logs/local dirs after the job finishes). Currently it is a nodemanager property
and changing it requires restarting the nodemanager. In a production cluster this can be a
real problem. It is better to have this property set on a per-job basis and not requiring
the restart of nodemanagers. 

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