[jira] [Commented] (MAHOUT-1588) Multiple input path support in recommendation job

["Pat Ferrel (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAHOUT-1588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14396298#comment-14396298 ] 

Pat Ferrel commented on MAHOUT-1588:
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Does this work for all recommender CLIs?

The new spark-itemsimilarity already have a flexible method for passing in multiple directories and files even supporting recursive regex discovery of input. 

This is too large for 0.10.0 and may not be of enough importance to test for later release.

If the contributor feels this is important, please create a PR and include tests.

> Multiple input path support in recommendation job
> -------------------------------------------------
>
>                 Key: MAHOUT-1588
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1588
>             Project: Mahout
>          Issue Type: New Feature
>          Components: Collaborative Filtering
>    Affects Versions: 0.9
>            Reporter: Xiaomeng Huang
>            Assignee: Pat Ferrel
>            Priority: Minor
>              Labels: legacy
>             Fix For: 0.10.0
>
>         Attachments: Mahout-1588.000.patch
>
>
> Now recommendation job can only import a input path via "--input", and can't load file from different path. Customers may put preference data in different path. This is a very usual scenario.
> I add a option named "--multiInput(-mi)", and don't remove the original input option. These two input option can set together. And the modification only refer to  PreparePreferenceMatrixJob, which load data from filesystem.



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