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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5323) Policies APIs (for Router and AMRMProxy policies)
Date Tue, 23 Aug 2016 18:28:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-5323?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15433346#comment-15433346
] 

Wangda Tan commented on YARN-5323:
----------------------------------

Thanks [~curino], 

Some questions / comments: 

1) Who will consume AMRMProxyFederationPolicy and RouterFederationPolicy? I'm not be able
to figure it out from the patch, I guess AMRMProxyService will use them, is it correct?
2) It looks like FederationPolicy is more like a FederationConfigurator/Creator, is it better
to remove the FederationPolicy interface? We can either make FederationPolicyConfigurator
extends FederationPolicyWriter or let implementation decide which to implement (such as {{SimpleFederationPolicyConfiguratorImpl
implements FederationPolicyWriter, FederationPolicyConfigurator}}).
3) Is it better to rename FederationPolicyContext to FederationPolicyInitializationContext?

4) The name "router" is a little hard to be understood, now it only determines application's
home sub cluster while submitting the app, do you plan to add more functionalities to the
module? Do you think is it better to rename it to be "AMRMProxyHomeClusterPolicy", (and similarly
we may rename AMRMProxyFederationPolicy to AMRMProxyResourceRequestPolicy).

> Policies APIs (for Router and AMRMProxy policies)
> -------------------------------------------------
>
>                 Key: YARN-5323
>                 URL: https://issues.apache.org/jira/browse/YARN-5323
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>    Affects Versions: YARN-2915
>            Reporter: Carlo Curino
>            Assignee: Carlo Curino
>         Attachments: YARN-5323-YARN-2915.05.patch, YARN-5323.01.patch, YARN-5323.02.patch,
YARN-5323.03.patch, YARN-5323.04.patch
>
>
> This JIRA tracks APIs for the policies that will guide the Router and AMRMProxy decisions
on where to fwd the jobs submission/query requests as well as ResourceRequests.



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