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https://issues.apache.org/jira/browse/MAPREDUCE-2558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13042968#comment-13042968
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Luke Lu commented on MAPREDUCE-2558:
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Your first guess is what I meant :) i.e., you can combine QueueInstrumentation
and QueueMetricsSource and call the resulting class QueueMetrics. The
introduction of the QueueInstrumentation abstract class is only necessary when
you have different implementations of queue metrics, which we don't (and
probably won't) have.
> Add queue-level metrics 0.20-security branch
> --------------------------------------------
>
> Key: MAPREDUCE-2558
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2558
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: jobtracker
> Affects Versions: 0.20.204.0
> Reporter: Jeffrey Naisbitt
> Assignee: Jeffrey Naisbitt
> Fix For: 0.20.205.0
>
> Attachments: queue-metrics-v2.patch, queue-metrics.patch
>
>
> We would like to record and present the jobtracker metrics on a per-queue
> basis.
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