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Posted to dev@mahout.apache.org by "Grant Ingersoll (JIRA)" <ji...@apache.org> on 2013/06/01 18:50:20 UTC

[jira] [Commented] (MAHOUT-950) Change BtJob to use new MultipleOutputs API

    [ https://issues.apache.org/jira/browse/MAHOUT-950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13672151#comment-13672151 ] 

Grant Ingersoll commented on MAHOUT-950:
----------------------------------------

I think we still need to support 1.0.X, so I'm not sure how to handle this.
                
> Change BtJob to use new MultipleOutputs API
> -------------------------------------------
>
>                 Key: MAHOUT-950
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-950
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Math
>            Reporter: Tom White
>         Attachments: MAHOUT-950.patch
>
>
> BtJob uses a mixture of the old and new MapReduce API to allow it to use MultipleOutputs (which isn't available in Hadoop 0.20/1.0). This fails when run against 0.23 (see MAHOUT-822), so we should change BtJob to use the new MultipleOutputs API. (Hopefully the new MultipleOutputs API will be made available in a 1.x release - see MAPREDUCE-3607.)

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