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Date: Thu, 2 Jun 2011 18:31:47 +0000 (UTC)
From: "Luke Lu (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Commented] (MAPREDUCE-2558) Add queue-level metrics
 0.20-security branch
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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 ] 

Luke Lu commented on MAPREDUCE-2558:
------------------------------------

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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