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https://issues.apache.org/jira/browse/HADOOP-5684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12699383#action_12699383
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Amr Awadallah commented on HADOOP-5684:
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+1, I like this idea.
-- amr
> separate jvm param for mapper and reducer
> -----------------------------------------
>
> Key: HADOOP-5684
> URL: https://issues.apache.org/jira/browse/HADOOP-5684
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: Koji Noguchi
> Priority: Minor
>
> Memory footprint of mapper and reducer can differ.
> It would be nice if we can pass different jvm param (mapred.child.java.opts)
> for mappers and reducers.
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