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Date: Mon, 4 Apr 2016 17:15:25 +0000 (UTC)
From: "Dhruv Mahajan (JIRA)" <jira@apache.org>
To: dev@reef.apache.org
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Subject: [jira] [Commented] (REEF-1310) The Java Driver should ACK the Java
 Evaluator's DONE heartbeat
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    [ https://issues.apache.org/jira/browse/REEF-1310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15224541#comment-15224541 ] 

Dhruv Mahajan commented on REEF-1310:
-------------------------------------

[~afchung90] I believe this will also solve REEF-1291 ?

> The Java Driver should ACK the Java Evaluator's DONE heartbeat
> --------------------------------------------------------------
>
>                 Key: REEF-1310
>                 URL: https://issues.apache.org/jira/browse/REEF-1310
>             Project: REEF
>          Issue Type: Bug
>          Components: REEF, REEF Driver, REEF-Common
>            Reporter: Andrew Chung
>
> The Driver should ACK the Evaluator's DONE heartbeat such that a race condition does not occur when the Evaluator ends. *i.e.* The Evaluator heartbeats DONE back to the Driver and the RM notices that the Evaluator process has exited. In this case, it is possible that the RM reports back to the Driver that the Evaluator is DONE before the Evaluator's DONE heartbeat goes back to the Driver, causing the Driver to invoke the {{FailedEvaluatorHandler}} due to an unexpected DONE message from the RM.


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