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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3514) Reduce seeks during shuffle, by inline crcs and cacheing indexes
Date Mon, 09 Jun 2008 16:43:44 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3514?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Owen O'Malley updated HADOOP-3514:
----------------------------------

    Summary: Reduce seeks during shuffle, by inline crcs and cacheing indexes  (was: Improve
the map output handling at the tasktracker for shuffle)

> Reduce seeks during shuffle, by inline crcs and cacheing indexes
> ----------------------------------------------------------------
>
>                 Key: HADOOP-3514
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3514
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred
>    Affects Versions: 0.18.0
>            Reporter: Devaraj Das
>            Assignee: Devaraj Das
>             Fix For: 0.19.0
>
>
> A couple of improvements can be done to reduce the number of seeks in the files related
to the map outputs.

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