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https://issues.apache.org/jira/browse/HADOOP-2015?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Runping Qi updated HADOOP-2015:
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Attachment: (was: hadoop-2015.txt)
> 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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