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From "Young Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7707) [GPG] Policy generator framework
Date Sat, 10 Feb 2018 01:37:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-7707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16359185#comment-16359185
] 

Young Chen commented on YARN-7707:
----------------------------------

This contains the framework for the policy generator service in the GlobalPolicyGenerator.
It periodically runs at configurable intervals, and invokes an instance of GlobalPolicy. The
GlobalPolicy specifies which RM endpoints it is interested in via registerPaths, and the PolicyGenerator
will query those endpoints and provide the requested information in updatePolicy. 

This enables the PolicyGenerator to handle making the actual REST calls and aggregating information.

The policies are written into the FederationStateStore, where it can be picked up by the AMRMProxy
and the Router. 

> [GPG] Policy generator framework
> --------------------------------
>
>                 Key: YARN-7707
>                 URL: https://issues.apache.org/jira/browse/YARN-7707
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Carlo Curino
>            Assignee: Young Chen
>            Priority: Major
>              Labels: federation, gpg
>         Attachments: YARN-7707-YARN-7402.01.patch
>
>
> This JIRA tracks the development of a generic framework for querying sub-clusters for
metrics, running policies, and updating them in the FederationStateStore.



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