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https://issues.apache.org/jira/browse/MAPREDUCE-2409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13068765#comment-13068765
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Hudson commented on MAPREDUCE-2409:
-----------------------------------
Integrated in Hadoop-Mapreduce-trunk-Commit #752 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/752/])
MAPREDUCE-2409. DistributedCache maps files and archives to the same path,
despite semantic incompatibility. Contributed by Siddharth Seth
cdouglas :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1149004
Files :
*
/hadoop/common/trunk/mapreduce/src/java/org/apache/hadoop/mapreduce/filecache/TaskDistributedCacheManager.java
* /hadoop/common/trunk/mapreduce/CHANGES.txt
*
/hadoop/common/trunk/mapreduce/src/test/mapred/org/apache/hadoop/mapreduce/filecache/TestTrackerDistributedCacheManager.java
*
/hadoop/common/trunk/mapreduce/src/java/org/apache/hadoop/mapreduce/filecache/TrackerDistributedCacheManager.java
> Distributed Cache does not differentiate between file /archive for files with
> the same path
> -------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-2409
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2409
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: distributed-cache
> Affects Versions: 0.20.203.0, 0.20.203.1, 0.23.0
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
> Fix For: 0.20.204.0, 0.23.0
>
> Attachments: M2409-0.patch, M2409-1.patch, M2409_3.patch, MR2409.patch
>
>
> If a 'global' file is specified as a 'file' by one job - subsequent jobs
> cannot override this source file to be an 'archive' (until the TT cleans up
> it's cache or a TT restart).
> The other way around as well -> 'archive' to 'file'
> In case of an accidental submission using the wrong type - some of the tasks
> for the second job will end up seeing the source file as an archive, others
> as a file.
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