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https://issues.apache.org/jira/browse/MAHOUT-602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12990374#comment-12990374
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Ted Dunning commented on MAHOUT-602:
------------------------------------
{quote}
Is it possible to abstract out all such problems so that the Hadoop mode does
not affect Mahout code?
{quote}
It is sort-of possible.
The big problem is that in local mode, everything runs in the same JVM. That
has lots of implications about the accidental use of shared memory. Many a
Hadoop beginner has been very confused when their program fails dramatically
when first run on a truly distributed model.
> "Partial Implementation" throws exceptions
> ------------------------------------------
>
> Key: MAHOUT-602
> URL: https://issues.apache.org/jira/browse/MAHOUT-602
> Project: Mahout
> Issue Type: Bug
> Environment: Macos X
> java version "1.6.0_22"
> Java(TM) SE Runtime Environment (build 1.6.0_22-b04-307-10M3261)
> Java HotSpot(TM) 64-Bit Server VM (build 17.1-b03-307, mixed mode)
> Reporter: Lance Norskog
> Assignee: Deneche A. Hakim
> Attachments: 10_hashCode.log, 10_toString.log,
> PartialImplementationBug1.patch, partialImp_fullKDD_errors.log
>
>
> The "Partial Implementation" described on the wiki page [Partial
> Implementation|https://cwiki.apache.org/confluence/display/MAHOUT/Partial+Implementation]
> fails with the given dataset and operations.
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