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https://issues.apache.org/jira/browse/HADOOP-3072?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Owen O'Malley resolved HADOOP-3072.
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Resolution: Duplicate
This duplicates HADOOP-372.
> 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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