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Posted to dev@crunch.apache.org by "Josh Wills (JIRA)" <ji...@apache.org> on 2013/03/11 01:37:13 UTC

[jira] [Commented] (CRUNCH-162) Add utility function for merging output by identity reduce

    [ https://issues.apache.org/jira/browse/CRUNCH-162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13598449#comment-13598449 ] 

Josh Wills commented on CRUNCH-162:
-----------------------------------

[~davebeech] was noodling on names for this-- what do you think of 'Shard' or maybe 'Reshard'?
                
> Add utility function for merging output by identity reduce
> ----------------------------------------------------------
>
>                 Key: CRUNCH-162
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-162
>             Project: Crunch
>          Issue Type: Improvement
>          Components: MapReduce Patterns
>    Affects Versions: 0.4.0
>            Reporter: Dave Beech
>            Priority: Minor
>
> Something I find myself doing reasonably often in mapreduce is to use
> the reduce step as nothing more than a means to merge data into larger
> files (using the identity reducer). 
> There doesn't appear to be a neat way to do this with Crunch at the moment.
> Ref: http://mail-archives.apache.org/mod_mbox/incubator-crunch-user/201302.mbox/%3CCAFZSZPsXRxWT45c9w4ef7Ruij2exE4HP2CDNMjd%2BVc%3D9RWX-Jw%40mail.gmail.com%3E

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