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https://issues.apache.org/jira/browse/MAPREDUCE-2410?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amareshwari Sriramadasu moved HADOOP-7213 to MAPREDUCE-2410:
------------------------------------------------------------
Component/s: (was: documentation)
documentation
contrib/streaming
Key: MAPREDUCE-2410 (was: HADOOP-7213)
Project: Hadoop Map/Reduce (was: Hadoop Common)
> document multiple keys per reducer oddity in hadoop streaming FAQ
> -----------------------------------------------------------------
>
> Key: MAPREDUCE-2410
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2410
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: contrib/streaming, documentation
> Reporter: Dieter Plaetinck
> Priority: Minor
> Labels: documentation
> Original Estimate: 40m
> Remaining Estimate: 40m
>
> Hi,
> for a newcomer to hadoop streaming, it comes as a surprise that the reducer
> receives arbitrary keys, unlike the "real" hadoop where a reducer works on a
> single key.
> An explanation for this is @
> http://mail-archives.apache.org/mod_mbox/hadoop-common-user/201103.mbox/browser
> I suggest to add this to the FAQ of hadoop streaming
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