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https://issues.apache.org/jira/browse/YARN-6247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15893774#comment-15893774
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Botong Huang commented on YARN-6247:
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Thanks [~subru] for the review!
> Share a single instance of SubClusterResolver instead of instantiating one
> per AM
> ---------------------------------------------------------------------------------
>
> Key: YARN-6247
> URL: https://issues.apache.org/jira/browse/YARN-6247
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Botong Huang
> Assignee: Botong Huang
> Priority: Minor
> Fix For: YARN-2915
>
> Attachments: YARN-6247-YARN-2915.v1.patch,
> YARN-6247-YARN-2915.v2.patch, YARN-6247-YARN-2915.v3.patch,
> YARN-6247-YARN-2915.v4.patch
>
>
> Add SubClusterResolver into FederationStateStoreFacade. Since the resolver
> might involve some overhead (read file in the background, potentially
> periodically), it is good to put it inside FederationStateStoreFacade
> singleton, so that only one instance will be created.
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