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From "Owen O'Malley (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 Thu, 25 Oct 2007 15:42:51 GMT

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

Owen O'Malley updated HADOOP-2015:
----------------------------------

    Status: Open  (was: Patch Available)

I meant to cancel this patch, until it logs rather than use a user counter to record the information.

> 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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