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From arkady borkovsky <ark...@yahoo-inc.com>
Subject Re: [jira] Created: (HADOOP-3072) Multiple mappers join into reducer
Date Sat, 22 Mar 2008 01:37:35 GMT
Can you suggest the API?
Currently, you check the input name and select the Map action -- how  
do you suggest to parametrize it more naturally?  (I'm with you --  
but there are many ways to skin a cat...)
On Mar 21, 2008, at 4:19 PM, Yiping Han (JIRA) wrote:

> Multiple mappers join into reducer
> ----------------------------------
>                  Key: HADOOP-3072
>                  URL: https://issues.apache.org/jira/browse/ 
> HADOOP-3072
>              Project: Hadoop Core
>           Issue Type: New Feature
>           Components: mapred
>             Reporter: Yiping Han
> We would like to have multiple different mappers that takes input  
> from different locations and output records with the same format.  
> So the output of the mappers could be joint in the reducer easily.  
> We know this can be achieved in the current framework. But the way  
> to achieve it is not natural, less flexibility (need code change).  
> Thus this would be a convenient feature to have.
> -- 
> This message is automatically generated by JIRA.
> -
> You can reply to this email to add a comment to the issue online.

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