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https://issues.apache.org/jira/browse/MAHOUT-350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12851920#action_12851920
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Hui Wen Han commented on MAHOUT-350:
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it work now.
need jobConf.setJarByClass(AbstractJob.class); in AbstractJob.java
run command like:
hadoop jar mahout-core-0.4-SNAPSHOT.jar
org.apache.mahout.cf.taste.hadoop.item.RecommenderJob
-Dmapred.job.name=HADOOP_REC_tap_tag -Dmapred.reduce.tasks=200 --input
/steer/item/in --tempDir /steer/item/temp --output /steer/item/out
--numRecommendations 10
but also has question,
AbstractJob has four sub-job ,they displayed the same name,
It hard to know which phase does the job run in .
> 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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