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Posted to yarn-issues@hadoop.apache.org by "Anubhav Dhoot (JIRA)" <ji...@apache.org> on 2015/08/25 00:59:46 UTC

[jira] [Created] (YARN-4077) FairScheduler Reservation should wait for most relaxed scheduling delay permitted before issuing reservation

Anubhav Dhoot created YARN-4077:
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             Summary: FairScheduler Reservation should wait for most relaxed scheduling delay permitted before issuing reservation
                 Key: YARN-4077
                 URL: https://issues.apache.org/jira/browse/YARN-4077
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Anubhav Dhoot


Today if an allocation has a node local request that allows for relaxation, we do not wait for the relaxation delay before issuing the reservation. This can be too aggressive. Instead we should allow the scheduling delays of relaxation to expire before we choose to allow reserving a node for the container. This allows for the request to be satisfied on a different node instead.



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