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Posted to mapreduce-issues@hadoop.apache.org by "Arun A K (JIRA)" <ji...@apache.org> on 2013/01/25 11:01:14 UTC

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

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13562567#comment-13562567 ] 

Arun A K commented on MAPREDUCE-4709:
-------------------------------------

@Jeremy Lewi, 
Could you please elaborate on the problem with an example? 
                
> 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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