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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAPREDUCE-2051) Contribute a fair scheduler preemption system test
Date Thu, 02 Sep 2010 23:47:34 GMT
Contribute a fair scheduler preemption system test
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                 Key: MAPREDUCE-2051
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2051
             Project: Hadoop Map/Reduce
          Issue Type: Test
          Components: contrib/fair-share
    Affects Versions: 0.22.0
            Reporter: Todd Lipcon
            Assignee: Todd Lipcon


We've seen a number of bugs in the fair share scheduler not caught by its unit tests, which
are heavily mock-based. This JIRA is to add an integration/system/stress test for the fairshare
scheduler. This test can help identify races and deadlocks, and when run within the jcarder
framework has identified several potential deadlocks for us that aren't turned up running
small scale testing.

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