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Posted to dev@reef.apache.org by "Mariia Mykhailova (JIRA)" <ji...@apache.org> on 2016/10/22 00:32:58 UTC

[jira] [Created] (REEF-1648) Allow transition from ALLOCATED to RUNNING in EvaluatorState

Mariia Mykhailova created REEF-1648:
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             Summary: Allow transition from ALLOCATED to RUNNING in EvaluatorState
                 Key: REEF-1648
                 URL: https://issues.apache.org/jira/browse/REEF-1648
             Project: REEF
          Issue Type: Bug
          Components: REEF-Common
            Reporter: Mariia Mykhailova
            Assignee: Mariia Mykhailova
            Priority: Critical


In REEF-62 we introduced state transition checks, which were refactored several times. However, these checks don't cover all allowed scenarios. In driver restart scenario restarted driver initially has all evaluators in `ALLOCATED` state, and when evaluators from first run reconnect to driver, they report they are in `RUNNING` state, so driver refuses to recognize them. 

We need to allow this transition for the restarted driver to recognize reconnecting evaluators.



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