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From Íñigo Goiri (JIRA) <j...@apache.org>
Subject [jira] [Commented] (YARN-7898) [FederationStateStore] Create a proxy chain for FederationStateStore API in the Router
Date Tue, 06 Feb 2018 22:25:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16354646#comment-16354646
] 

Íñigo Goiri commented on YARN-7898:
-----------------------------------

Thanks [~giovanni.fumarola] for [^YARN-7898-YARN-7402.proto.patch].

I think this concept is useful for caching accesses to the State Store; right now you are
relying on the caching at the State Store Facade in the Router, right?

In addition to the REST interface, it might be useful to do the equivalent in RPC. It might
be simpler to start with the RPC actually to get rid of a lot of the Web specific stuff.

> [FederationStateStore] Create a proxy chain for FederationStateStore API in the Router
> --------------------------------------------------------------------------------------
>
>                 Key: YARN-7898
>                 URL: https://issues.apache.org/jira/browse/YARN-7898
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Giovanni Matteo Fumarola
>            Assignee: Giovanni Matteo Fumarola
>            Priority: Major
>         Attachments: YARN-7898-YARN-7402.proto.patch
>
>
> As detailed in the proposal in the umbrella JIRA, we are introducing a new component
that routes client request to appropriate FederationStateStore. This JIRA tracks the creation
of a proxy for FederationStateStore in the Router.



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