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From "John Yang (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (REEF-1014) Expose hard Evaluator preemption on YARN
Date Wed, 02 Dec 2015 06:16:11 GMT

    [ https://issues.apache.org/jira/browse/REEF-1014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15035343#comment-15035343
] 

John Yang edited comment on REEF-1014 at 12/2/15 6:16 AM:
----------------------------------------------------------

I'd like {{PreemptedEvaluator}} to cover only hard preemption, and expose soft preemption
separately, for example as {{PreemptionMessage}}. The main reason is that soft preemption
is technically not a preemption, but rather a hint. So it'd be better not to mix these two
concepts in a single handler type.

I think exposing soft preemption can be discussed/addressed in a separate JRIA issue.


was (Author: johnyangk):
I'd like {{PreemptedEvaluator}] to cover only hard preemption, and expose soft preemption
separately, for example as {{PreemptionMessage}}. The main reason is that soft preemption
is technically not a preemption, but rather a hint. So it'd be better not to mix these two
concepts in a single handler type.

I think exposing soft preemption can be discussed/addressed in a separate JRIA issue.

> Expose hard Evaluator preemption on YARN
> ----------------------------------------
>
>                 Key: REEF-1014
>                 URL: https://issues.apache.org/jira/browse/REEF-1014
>             Project: REEF
>          Issue Type: Sub-task
>          Components: REEF Driver, REEF Runtime YARN
>            Reporter: John Yang
>            Assignee: John Yang
>
> Expose to REEF users hard Evaluator preemption on YARN. We can leverage {{ContainerExitStatus.PREEMPTED}}
YARN RM gives to REEF Driver.



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