[jira] [Comment Edited] (YARN-6355) Preprocessor framework for AM and Client interactions with the RM

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

    [ https://issues.apache.org/jira/browse/YARN-6355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16056622#comment-16056622 ] 

Arun Suresh edited comment on YARN-6355 at 6/20/17 11:06 PM:
-------------------------------------------------------------

Thanks for the review [~subru]..
* Attached a simple design doc (one-pager) to describe the motivation.
* Will break this into multiple JIRA's - one for the simple Processor, and then extend it to an Interceptor Chain.


was (Author: asuresh):
Attaching a one pager design doc.

> Preprocessor framework for AM and Client interactions with the RM
> -----------------------------------------------------------------
>
>                 Key: YARN-6355
>                 URL: https://issues.apache.org/jira/browse/YARN-6355
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>              Labels: amrmproxy, resourcemanager
>         Attachments: YARN-6355.001.patch, YARN-6355.002.patch, YARN-6355-one-pager.pdf
>
>
> 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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