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From "Sean Owen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAHOUT-350) add one "JobName" and reduceNumber parameter to org.apache.mahout.cf.taste.hadoop.item.RecommenderJob
Date Wed, 31 Mar 2010 11:50:27 GMT

    [ https://issues.apache.org/jira/browse/MAHOUT-350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12851827#action_12851827
] 

Sean Owen commented on MAHOUT-350:
----------------------------------

If you don't mind, try this again? I changed AbstractJob to properly use the Configured class,
which may be the key to getting Hadoop to properly parse these environment args for you. I
also removed the --jarFile argument, since you should no longer need it with the change is
just made.

I do not know if it works, but would be grateful if you can try it.

> 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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