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Posted to mapreduce-dev@hadoop.apache.org by "Ryan Hennig (JIRA)" <ji...@apache.org> on 2012/07/20 21:05:36 UTC

[jira] [Created] (MAPREDUCE-4468) Encapsulate FairScheduler preemption logic into helper class

Ryan Hennig created MAPREDUCE-4468:
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             Summary: Encapsulate FairScheduler preemption logic into helper class
                 Key: MAPREDUCE-4468
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4468
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: scheduler
            Reporter: Ryan Hennig
            Priority: Minor
             Fix For: 2.1.0-alpha


I've extracted the preemption logic from the Fair Scheduler into a helper class so that FairScheduler is closer to following the Single Responsibility Principle.  This may eventually evolve into a generalized preemption module which could be leveraged by other schedulers.

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