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From "Arun Suresh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6355) Interceptor framework for the YARN ApplicationMasterService
Date Fri, 17 Mar 2017 19:40:41 GMT

    [ https://issues.apache.org/jira/browse/YARN-6355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15930581#comment-15930581
] 

Arun Suresh commented on YARN-6355:
-----------------------------------

Yup.. Thanks..
I was planning of trying to reuse the same framework. Needs some modification though, since
there are different Contexts involved and the AMRMProxy interceptors are initialized per app..
I was hoping this would be more of a general interceptor where we can enforce policies across
apps for example.

> Interceptor framework for the YARN ApplicationMasterService
> -----------------------------------------------------------
>
>                 Key: YARN-6355
>                 URL: https://issues.apache.org/jira/browse/YARN-6355
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>
> Currently on the NM, we have the {{AMRMProxy}} framework to intercept the AM <->
RM communication and enforce policies. This is used both by YARN federation (YARN-2915) as
well as Distributed Scheduling (YARN-2877).
> This JIRA proposes to introduce a similar framework on the the RM side, so that pluggable
policies can be enforced on ApplicationMasterService centrally as well.
> This would be similar in spirit to a Java Servlet Filter Chain. Where the order of the
interceptors can declared externally.
> Once possible usecase would be:
> the {{OpportunisticContainerAllocatorAMService}} is implemented as a wrapper over the
{{ApplicationMasterService}}. It would probably be better to implement it as an Interceptor.



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