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From "Yiping Han (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-3072) Multiple mappers join into reducer
Date Fri, 21 Mar 2008 23:19:24 GMT
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. 

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