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https://issues.apache.org/jira/browse/MAHOUT-350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12852315#action_12852315
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Sean Owen commented on MAHOUT-350:
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Thanks Drew, I see the parsing now that you prompted me to look a second time.
It sounds like the -D options work. So, we don't need to do things like parse
and set the number of reducers with our own argument.
I like your version of setJarByClass() and will commit that. That also gets rid
of the --jarFile option I had put it in earlier.
So, perhaps I should also get rid of custom --input and --output arguments?
(Incidentally, now might be a good time to plug 'AbstractJob'. I think Robin
was also keen to rally around refactoring Hadoop jobs to use this class, so we
can capture all this good knowledge and practice in one place, and approach job
handling consistently. It will no doubt need modification to really serve all
needs.)
Hui I also like your proposal to take a name suffix argument to prepareJob(). I
will work on that and commit soon.
> add one "JobName" and reduceNumber parameter to
> org.apache.mahout.cf.taste.hadoop.item.RecommenderJob
> ------------------------------------------------------------------------------------------------------
>
> Key: MAHOUT-350
> URL: https://issues.apache.org/jira/browse/MAHOUT-350
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: 0.4
> Reporter: Hui Wen Han
> Priority: Minor
> Attachments: screenshot-1.jpg
>
>
> Can add one "JobName" parameter to
> org.apache.mahout.cf.taste.hadoop.item.RecommenderJob?
> if there's a lot of RecommenderJob,it's hard to distinguish those jobs.
> also RecommenderJob has four sub jobs (or phase ) ,can add sub-job name to
> those phase ?
> Because RecommenderJob has not setNumReduceTasks ,it seems that the
> performance is not good in reduce phase.
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