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https://issues.apache.org/jira/browse/HADOOP-4730?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amareshwari Sriramadasu reassigned HADOOP-4730:
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Assignee: Amareshwari Sriramadasu
> multi-threaded merge phase
> --------------------------
>
> Key: HADOOP-4730
> URL: https://issues.apache.org/jira/browse/HADOOP-4730
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Affects Versions: 0.18.1
> Reporter: Christian Kunz
> Assignee: Amareshwari Sriramadasu
>
> Doing merges in multiple threads (when enough cores are available -- a
> monitoring issue), the time spent in merging could be cut by a factor equal
> to the number of threads.
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