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From "Scott Chen (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAPREDUCE-1995) FairScheduler can wait for JobInProgress lock while holding JobTracker lock
Date Thu, 05 Aug 2010 01:48:17 GMT
FairScheduler can wait for JobInProgress lock while holding JobTracker lock
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                 Key: MAPREDUCE-1995
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1995
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: contrib/fair-share
    Affects Versions: 0.21.0
            Reporter: Scott Chen
            Assignee: Scott Chen
             Fix For: 0.22.0


{code}
JobInProgress.getTaskInProgress()    (Locks JobInProgress)
LocalityLevel.fromTask()
FairScheduler.updateLastMapLocalityLevel()
FairScheduler.assignTasks()
JobTracker.heartbeat()    (Locks JobTracker)
{code}

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