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https://issues.apache.org/jira/browse/MAHOUT-537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13058563#comment-13058563
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Shannon Quinn commented on MAHOUT-537:
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I thought it would be simpler. Granted I know very little of how HDFS works, so
I'm not sure what's causing the problems or how to fix it. The fact that
nothing written can be read back later (tests come back with 0 values or empty
lists, or files simply don't exist where the Configuration says they should)
seems like it should be an easy fix, but I don't know where to start.
The next best thing to this approach was to more or less mimic the bare
necessities of these dependencies in custom implementations, something I don't
have the expertise for just yet. I was hoping this would serve only as a
holdover until 0.22+ when the dependencies are officially re-included, but in
the meantime would enable us to move entirely off 0.18.
Again, it was just a wild idea and I wanted to see if it would work. Still want
to see if it will work, in fact.
> Bring DistributedRowMatrix into compliance with Hadoop 0.20.2
> -------------------------------------------------------------
>
> Key: MAHOUT-537
> URL: https://issues.apache.org/jira/browse/MAHOUT-537
> Project: Mahout
> Issue Type: Improvement
> Components: Math
> Affects Versions: 0.4, 0.5
> Reporter: Shannon Quinn
> Assignee: Shannon Quinn
> Fix For: 0.6
>
> Attachments: MAHOUT-537.patch, MAHOUT-537.patch, MAHOUT-537.patch,
> MAHOUT-537.patch, MAHOUT-537_hack.patch
>
>
> Convert the current DistributedRowMatrix to use the newer Hadoop 0.20.2 API,
> in particular eliminate dependence on the deprecated JobConf, using instead
> the separate Job and Configuration objects.
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