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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4595) TestLostTracker failing - possibly due to a race in JobHistory.JobHistoryFilesManager#run()
Date Mon, 27 Aug 2012 18:16:07 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4595?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13442574#comment-13442574
] 

Hadoop QA commented on MAPREDUCE-4595:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12542627/MR-4595.patch
  against trunk revision .

    -1 patch.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2774//console

This message is automatically generated.
                
> TestLostTracker failing - possibly due to a race in JobHistory.JobHistoryFilesManager#run()
> -------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4595
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4595
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 1.0.3
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>            Priority: Critical
>              Labels: test
>         Attachments: force-TestLostTracker-failure.patch, MR-4595.patch
>
>
> The source for occasional failure of TestLostTracker seems like the following:
> On job completion, JobHistoryFilesManager#run() spawns another thread to move history
files to done folder. TestLostTracker waits for job completion, before checking the file format
of the history file. However, the history files move might be in the process or might not
have started in the first place.
> I am uploading a patch that significantly increases the chance of hitting this race.


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