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Posted to common-dev@hadoop.apache.org by "Amareshwari Sriramadasu (JIRA)" <ji...@apache.org> on 2009/01/06 09:03:44 UTC

[jira] Assigned: (HADOOP-4730) multi-threaded merge phase

     [ https://issues.apache.org/jira/browse/HADOOP-4730?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Amareshwari Sriramadasu reassigned HADOOP-4730:
-----------------------------------------------

    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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