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https://issues.apache.org/jira/browse/MAPREDUCE-4709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13562685#comment-13562685
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Harsh J commented on MAPREDUCE-4709:
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Hi Arun,
Sorry we forgot to link the discussion, but please also see
http://search-hadoop.com/m/cuZMf2humC
> Counters that track max values
> ------------------------------
>
> Key: MAPREDUCE-4709
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4709
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Reporter: Jeremy Lewi
> Priority: Minor
>
> A nice feature to help monitor MR jobs would be mapreduce counters that track
> the maximum of some metric across all workers. These trackers would work just
> like regular counters except it would track the max value of all arguments
> passed to the "increment" function as opposed to summing them.
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