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From "Julia (JIRA)" <j...@apache.org>
Subject [jira] [Created] (REEF-1820) Allow specify node names when requesting evaluators
Date Wed, 05 Jul 2017 05:32:00 GMT
Julia created REEF-1820:
---------------------------

             Summary: Allow specify node names when requesting evaluators
                 Key: REEF-1820
                 URL: https://issues.apache.org/jira/browse/REEF-1820
             Project: REEF
          Issue Type: Task
          Components: REEF, REEF Bridge
            Reporter: Julia
            Priority: Minor


Currently, when clients request for evaluators, .Net REEF doesn't not expose node names in
IEvaluatorRequest. It default to null node names therefore it is up to YARN to assign available
containers. 

Some of the REEF clients would like to specify node names when requesting for evaluators.
We should allow the preferred node names to be specified through IEvaluatorRequest and pass
it to Java EvaluatorRequestorBridge. 

As resources requested may not be available for various reasons, we should also allow the
client to specify RelaxLocality in the IEvaluatorRequest. Setting RelaxLocality to true would
allow YARN to return another container if the specified one is not available. 



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