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https://issues.apache.org/jira/browse/MAPREDUCE-1523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12848470#action_12848470
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Dick King commented on MAPREDUCE-1523:
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The problem reported in the comment of 22/Mar/10 11:08 PM arises because 
{{svn}} creates an extra file in the directory, and we try to interpret that as 
a possible log.  This is unlikely to be new to the patch.  However, it 
obviously needs to be fixed.

> Sometimes rumen trace generator fails to extract the job finish time.
> ---------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1523
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1523
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Hong Tang
>            Assignee: Dick King
>         Attachments: mapreduce-1523--2010-02-24.patch, 
> mapreduce-1523--2010-02-25.patch
>
>
> We saw sometimes (not very often) that rumen may fail to extract the job 
> finish time from Hadoop 0.20 history log.

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