Arun Suresh created YARN-6355:
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Summary: 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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