[jira] [Commented] (YARN-6355) Interceptor framework for the YARN ApplicationMasterService

["Arun Suresh (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-6355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15928925#comment-15928925 ] 

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

[~vinodkv] / [~subru] / [~leftnoteasy] Thoughts ?

> 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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