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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-2180) Add coverage of fair scheduler servlet to system test
Date Sat, 12 Feb 2011 14:31:05 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12993937#comment-12993937

Hudson commented on MAPREDUCE-2180:

Integrated in Hadoop-Mapreduce-22-branch #33 (See [https://hudson.apache.org/hudson/job/Hadoop-Mapreduce-22-branch/33/])

> Add coverage of fair scheduler servlet to system test
> -----------------------------------------------------
>                 Key: MAPREDUCE-2180
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2180
>             Project: Hadoop Map/Reduce
>          Issue Type: Test
>          Components: contrib/fair-share
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Minor
>             Fix For: 0.22.0
>         Attachments: mapreduce-2180.txt
> MAPREDUCE-2051 added a system test for the fair scheduler which starts a minicluster
and runs a couple jobs with preemption on. I recently found a deadlock in a previous version
of the scheduler that was due to lock inversion between the scheduler servlet and some JT
internals. I'd like to modify the existing system test to also hit the /scheduler servlet,
allowing jcarder to detect such lock inversions in the future.

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