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Posted to mapreduce-issues@hadoop.apache.org by "Jeremy Lewi (JIRA)" <ji...@apache.org> on 2012/10/05 19:40:03 UTC

[jira] [Created] (MAPREDUCE-4709) Counters that track max values

Jeremy Lewi created MAPREDUCE-4709:
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             Summary: 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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