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https://issues.apache.org/jira/browse/YARN-8626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16570604#comment-16570604
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Subru Krishnan commented on YARN-8626:
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Thanks [~elgoiri] for the patch. I looked at it, please find my comments below:
* We generally use _home_ and not _local_. In this case I suggest replacing
_local_ with either _home_ or _reflexive_?
* If possible, can you remove the empty *notifyOfResponse* impls from the
stateless AMRMProxyPolicies as those are now redundant.
* In the {{LocalAMRMProxyPolicy}}, add a check to validate the _home SC_ is
indeed active (and corresponding test).
* The *FederationPolicyInitializationContext* will not have the _home SC_ set
in {{LocalRouterPolicy}} as it's the responsibility of the router to do so
(chicken or egg situation :)). If you have capacity reserved, then the ideal
approach would be to query the _StateStore_ to figure out which SC has capacity
and select that as the _home SC_. If you don't have capacity reserved, then you
should use *UniformRandomRouterPolicy* directly.
* Add a test for {{LocalRouterPolicy}} if it's still required based on above
comment.
> Create LocalPolicyManager that sends all the requests to the home subcluster
> ----------------------------------------------------------------------------
>
> Key: YARN-8626
> URL: https://issues.apache.org/jira/browse/YARN-8626
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Giovanni Matteo Fumarola
> Assignee: Íñigo Goiri
> Priority: Minor
> Fix For: 3.2.0
>
> Attachments: YARN-8626.000.patch, YARN-8626.001.patch,
> YARN-8626.002.patch, YARN-8626.003.patch, YARN-8626.004.patch,
> YARN-8626.005.patch
>
>
> To have the same behavior as a regular non-federated deployment, one should
> be able to submit jobs to the local RM and get the job constrained to that
> subcluster.
> This JIRA creates an AMRMProxyPolicy that sends resources to the home
> subcluster and mimics the behavior of a non-federated cluster.
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