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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-2323) Add metrics to the fair scheduler
Date Thu, 03 Mar 2011 23:31:37 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon updated MAPREDUCE-2323:
-----------------------------------

    Attachment: mr-2323.txt

Slightly improved patch - the main code is the same, but this fixes some flaky behavior in
the tests. I previously wasn't unregistering the metrics updater in fairsched's termination
method, so different test cases were interacting poorly with eachother.

This should be ready for review.

> Add metrics to the fair scheduler
> ---------------------------------
>
>                 Key: MAPREDUCE-2323
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2323
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: contrib/fair-share
>    Affects Versions: 0.23.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: 0.23.0
>
>         Attachments: mr-2323-20.txt, mr-2323.txt, mr-2323.txt
>
>
> It would be useful to be able to monitor various metrics in the fair scheduler, like
demand, fair share, min share, and running task count.

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