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https://issues.apache.org/jira/browse/MAHOUT-350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12852360#action_12852360
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Drew Farris commented on MAHOUT-350:
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bq. (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.)
I was thinking about this last night when looking at the code -- taking the
CollocDriver for example and adapting it to use AbstractJob. I was wondering
should I depend on it as-is, or should we consider moving it to
org.apache.mahout.common?
bq. OK, try my latest commit. --input and --output are now gone in favor of the
standard -Dmapred.input.dir and -Dmapred.output.dir
Ahh, that's a great idea Sean. The less command-line parsing code anyone has to
write the better.
What do you think can be done about job naming for sub-jobs?
> 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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