Update to Hadoop 0.21
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Key: MAHOUT-708
URL: https://issues.apache.org/jira/browse/MAHOUT-708
Project: Mahout
Issue Type: Task
Components: Classification, Clustering, Collaborative Filtering,
Frequent Itemset/Association Rule Mining
Affects Versions: 0.5
Reporter: Sean Owen
Assignee: Sean Owen
Fix For: 0.6
I suggest we should move to Hadoop 0.21 for the next release. It is the current
release, soon to be superseded by 0.22. It matches more closely what CDH3/4
users use. It has bug fixes, and crucially some features that make joins much
less painful.
The drawback is that EMR does not yet support it. I still suggest we forge
ahead as one imagines it will be supported by the time we release 0.6.
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