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https://issues.apache.org/jira/browse/MAPREDUCE-1140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12777809#action_12777809
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Jothi Padmanabhan commented on MAPREDUCE-1140:
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In {{getLocalCache}}, if the file is already present, only reference count is
incremented, so does not throw any IOExceptions. If the file is not present,
{{cachedArchives.put}} is done only after the necessary processing (read
methods that can throw IOExceptions) is complete. So, I do not think this patch
will lead to any inconsistency.
I however do agree that it is a good idea to do the refactor of test case to
avoid duplication.
> Per cache-file refcount can become negative when tasks release
> distributed-cache files
> --------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-1140
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1140
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.20.2, 0.21.0, 0.22.0
> Reporter: Vinod K V
> Assignee: Amareshwari Sriramadasu
> Attachments: patch-1140-1.txt, patch-1140-ydist.txt, patch-1140.txt
>
>
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