[jira] [Commented] (REEF-1872) Expose Evaluator revocation on Mesos

["Seokchan Ahn (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/REEF-1872?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16147373#comment-16147373 ] 

Seokchan Ahn commented on REEF-1872:
------------------------------------

How do we want to expose Revocation on Mesos?

YARN doesn’t distinguish preemptible and non-preemptible resource but Mesos does. Thus, Mesos framework should choose revocable resource or non-revocable when it submits a task to the framework. So, how do we want to expose this part to REEF?

I can imagine two different paths:
*  Set a flag that represents if the task is to be submitted to revocable resources on {{EvaluatorRequest}}.
Major shortcoming: It exposes a Mesos specific API.

*  Set revocable as default like YARN.
Major shortcoming: It restricts Mesos’s feature and user may not want to use revocable resources. 

Can you share your ideas about this problem?
Thank you!


> Expose Evaluator revocation on Mesos
> ------------------------------------
>
>                 Key: REEF-1872
>                 URL: https://issues.apache.org/jira/browse/REEF-1872
>             Project: REEF
>          Issue Type: Sub-task
>          Components: REEF, REEF Driver
>            Reporter: Seokchan Ahn
>
> Expose to REEF users Evaluator revocation on Mesos.



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