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Posted to dev@mahout.apache.org by "Han Hui Wen (JIRA)" <ji...@apache.org> on 2010/08/18 17:59:16 UTC

[jira] Updated: (MAHOUT-483) Job RowSimilarityJob-Mapper-EntriesToVectorsReducer improvement

     [ https://issues.apache.org/jira/browse/MAHOUT-483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Han Hui Wen  updated MAHOUT-483:
--------------------------------

    Affects Version/s: 0.4
        Fix Version/s: 0.4
          Component/s: Collaborative Filtering

> Job RowSimilarityJob-Mapper-EntriesToVectorsReducer improvement 
> ----------------------------------------------------------------
>
>                 Key: MAHOUT-483
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-483
>             Project: Mahout
>          Issue Type: Test
>          Components: Collaborative Filtering
>    Affects Versions: 0.4
>            Reporter: Han Hui Wen 
>             Fix For: 0.4
>
>
> the Mapper phase of Job RowSimilarityJob-Mapper-EntriesToVectorsReducer uses too long time but do nothing actually.
> Can we move the EntriesToVectorsReducer task to Mapper phase ? set the Reducer phase is null,
> So can improve the performance.

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