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Posted to mapreduce-issues@hadoop.apache.org by "Amareshwari Sriramadasu (JIRA)" <ji...@apache.org> on 2010/07/12 12:58:50 UTC
[jira] Updated: (MAPREDUCE-605) In Streaming, allow different
mappers for different subsets of the input
[ https://issues.apache.org/jira/browse/MAPREDUCE-605?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Amareshwari Sriramadasu updated MAPREDUCE-605:
----------------------------------------------
Issue Type: New Feature (was: Bug)
> In Streaming, allow different mappers for different subsets of the input
> ------------------------------------------------------------------------
>
> Key: MAPREDUCE-605
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-605
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: contrib/streaming
> Reporter: arkady borkovsky
>
> The command line may look like this:
> -mapper mapper-command-1 -input dir11 -mapper mapper-command-2 -input dir22 input -dir21
> meaning that map phase will apply mapper-command-1 to part files from dir11, and the part files from dir22 and dir21 will be processed by mapper-command-2
> then all will be shuffled and processed by a single reducer.
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