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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (MAPREDUCE-230) Need to document the controls for sorting and grouping into the reduce
Date Thu, 17 Jul 2014 18:05:06 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-230?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Allen Wittenauer resolved MAPREDUCE-230.
----------------------------------------

    Resolution: Won't Fix

This ship sailed a looooooong time ago.

> Need to document the controls for sorting and grouping into the reduce
> ----------------------------------------------------------------------
>
>                 Key: MAPREDUCE-230
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-230
>             Project: Hadoop Map/Reduce
>          Issue Type: Task
>            Reporter: Owen O'Malley
>            Assignee: Arun C Murthy
>
> The JavaDoc for the Reducer should document how to control the sort order of keys and
values via the JobConf methods:
> {code}
>   setOutputKeyComparatorClass
>   setOutputValueGroupingComparator
> {code}
> Both methods desperately need better names. (I'd vote for setKeySortingComparator and
setKeyGroupingComparator.)



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