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https://issues.apache.org/jira/browse/HADOOP-2010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12533209
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Runping Qi commented on HADOOP-2010:
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The per mapper attempt locality attribute should have three possible values: 0
for host_local, 1 for remote, 2 for rack_local (for future extension).
> the counter for map input locality should be associated with a map attempt
> --------------------------------------------------------------------------
>
> Key: HADOOP-2010
> URL: https://issues.apache.org/jira/browse/HADOOP-2010
> Project: Hadoop
> Issue Type: Improvement
> Components: mapred
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
> Fix For: 0.16.0
>
>
> Instead of being a job counter for map locality that is on the job, each map
> attempt should be 0 or 1 for whether it was data-local or not.
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