[jira] [Updated] (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:all-tabpanel ]

Arun Suresh updated YARN-6355:
------------------------------
    Summary: Preprocessor framework for AM and Client interactions with the RM  (was: Interceptor framework for the YARN ApplicationMasterService)

> 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
>
> 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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