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https://issues.apache.org/jira/browse/HADOOP-1406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12498192
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Hadoop QA commented on HADOOP-1406:
-----------------------------------
Integrated in Hadoop-Nightly #98 (See
http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Nightly/98/)
> Metrics based on Map-Reduce Counters are not cleaned up
> -------------------------------------------------------
>
> Key: HADOOP-1406
> URL: https://issues.apache.org/jira/browse/HADOOP-1406
> Project: Hadoop
> Issue Type: Bug
> Reporter: David Bowen
> Assigned To: David Bowen
> Fix For: 0.14.0
>
> Attachments: 1406.patch
>
>
> When map-reduce jobs are finished, the metrics corresponding to their
> counters are not cleaned up. This is a memory leak, but worse it means that
> an ever-increasing amount of metric data is sent to the metrics system (if
> one is enabled).
> The fix is for JobInProgress to clean up the metrics it created when the job
> is complete.
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