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https://issues.apache.org/jira/browse/MAPREDUCE-752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved MAPREDUCE-752.
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Resolution: Fixed
The reality was that 0.21 did come out but no one really used it. 0.20 had this
issue forever until 0.20.2xx came out.
Closing, grumpily, as fixed.
> DistributedCache.addArchiveToClassPath doesn't work
> ---------------------------------------------------
>
> Key: MAPREDUCE-752
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-752
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: distributed-cache
> Affects Versions: 0.20.1, 0.21.0
> Reporter: Vladimir Klimontovich
> Attachments: MAPREDUCE-752-ver2.patch, MAPREDUCE-752-ver3.patch,
> MAPREDUCE-752.patch, MAPREDUCE-752.zip
>
>
> addArchiveToClassPath is a method of DistributedCache class. It should be
> called before running a task. It accepts path to a jar file on a DFS. After it
> this method should put this jar file on sitribuuted cache and than add this
> file to classpath to each map/reduce process on job tracker.
> This method don't work:
> in TaskRunner there is an algorithm that looks for correspondence between DFS
> paths and local paths in distributed cache.
> It compares
> if (archives[i].getPath().equals(
> archiveClasspaths[j].toString())){
> instead of
> if (archives[i].toString().equals(
> archiveClasspaths[j].toString()))
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