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From "Gera Shegalov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-4986) Document the locality effect of preemption timeouts in FairScheduler when mapred.fairscheduler.preemption is off
Date Thu, 07 Feb 2013 00:28:12 GMT
Gera Shegalov created MAPREDUCE-4986:
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             Summary: Document the locality effect of preemption timeouts in FairScheduler
when mapred.fairscheduler.preemption is off
                 Key: MAPREDUCE-4986
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4986
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: contrib/fair-share, documentation
    Affects Versions: 1.1.1
            Reporter: Gera Shegalov


fair_scheduler.xml does not mention the delay scheduling algorithm. Furthermore, it does not
explain that in getAllowedLocalityLevel the preemption timeouts are used to disable the locality
delay scheduling for the starved pool when mapred.fairscheduler.preemption=false (default).

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