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From "Runping Qi (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-2015) Job tracker should report the number of splits that are local to some task trackers
Date Wed, 10 Oct 2007 22:23:51 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-2015?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Runping Qi updated HADOOP-2015:
-------------------------------

    Status: Open  (was: Patch Available)

a more optimized patch is available


> Job tracker should report the number of splits that are local to some task trackers
> -----------------------------------------------------------------------------------
>
>                 Key: HADOOP-2015
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2015
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: mapred
>            Reporter: Runping Qi
>            Assignee: Runping Qi
>         Attachments: hadoop-2015.txt
>
>
> Right now, jon tracker keeps track the number of launched mappers with local data.
> However, it is not clear how many mappers that are potentially be launched with data
locality.
> This information is readily available in Job Tracker. It is just a matter to create a
separate global  counter 
> and set it at the Job Tracker initialization time.

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