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From "Subru Krishnan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6355) Interceptor framework for the YARN ApplicationMasterService
Date Fri, 17 Mar 2017 19:36:41 GMT

    [ https://issues.apache.org/jira/browse/YARN-6355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15930569#comment-15930569
] 

Subru Krishnan commented on YARN-6355:
--------------------------------------

[~asuresh], it should be fairly straightforward to refactor the interceptor chain introduced
in YARN-2884 so that it can be used in both {{AMRMProxy}} and {{RM}} as it depends mostly
only on the {{ApplicationMasterProtocol}}. 

This should also be useful to plugin the work we are doing with DDoS prevention (YARN-1547)
directly to the RM as suggested by [~vinodkv].

> 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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