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https://issues.apache.org/jira/browse/MAPREDUCE-1225?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12864133#action_12864133
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Zhong Wang commented on MAPREDUCE-1225:
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This patch has passed hudson test and people review for about half of a month.
Should we commit this to mapreduce trunk?
> TT successfully localizes a task even though the corresponding cache-file has
> already changed on DFS.
> -----------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-1225
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1225
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.21.0, 0.22.0
> Reporter: Vinod K V
> Fix For: 0.22.0
>
> Attachments: MAPREDUCE-1225.patch, MAPREDUCE-1225.patch,
> MAPREDUCE-1225.patch, MAPREDUCE-1225.patch
>
>
> This happens with the first task of a job being localized on this TT. TT
> doesn't check if the file on DFS is fresh according to the timestamps set in
> job-conf during submission. After the first task incorrectly gets localized,
> all further tasks fail on this TT as expected.
> Found this issue while trying to improve test-case for MAPREUCE-913.
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