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https://issues.apache.org/jira/browse/MAHOUT-347?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hui Wen Han updated MAHOUT-347:
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Attachment: (was: screenshot-2.jpg)
> org.apache.mahout.math.IndexException: index(-521252222) is out of bounds of
> (0, 2147483647)
> --------------------------------------------------------------------------------------------
>
> Key: MAHOUT-347
> URL: https://issues.apache.org/jira/browse/MAHOUT-347
> Project: Mahout
> Issue Type: Bug
> Components: Collaborative Filtering
> Affects Versions: 0.3
> Environment: mahout on linux 64bit
> Reporter: Hui Wen Han
> Assignee: Sean Owen
> Priority: Critical
> Fix For: 0.4
>
> Attachments: screenshot-1.jpg
>
>
> when run job org.apache.mahout.cf.taste.hadoop.item.RecommenderJob
> get following error:
> 10/03/26 09:11:05 INFO mapred.JobClient: Task Id :
> attempt_201003221228_0170_r_000000_0, Status : FAILED
> org.apache.mahout.math.IndexException: index(-521252222) is out of bounds of
> (0, 2147483647)
> at org.apache.mahout.math.AbstractVector.set(AbstractVector.java:353)
> at
> org.apache.mahout.cf.taste.hadoop.item.ToUserVectorReducer.reduce(ToUserVectorReducer.java:75)
> at
> org.apache.mahout.cf.taste.hadoop.item.ToUserVectorReducer.reduce(ToUserVectorReducer.java:58)
> at
> org.apache.hadoop.mapred.ReduceTask.runOldReducer(ReduceTask.java:463)
> at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:411)
> at org.apache.hadoop.mapred.Child.main(Child.java:170)
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