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https://issues.apache.org/jira/browse/YARN-7652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16387355#comment-16387355
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SammiChen commented on YARN-7652:
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Hi [~botong], is it still on target for 2.9.1? If not, can we push it out from
2.9.1 to next release?
> Handle AM register requests asynchronously in FederationInterceptor
> -------------------------------------------------------------------
>
> Key: YARN-7652
> URL: https://issues.apache.org/jira/browse/YARN-7652
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: amrmproxy, federation
> Affects Versions: 2.9.0, 3.0.0
> Reporter: Subru Krishnan
> Assignee: Botong Huang
> Priority: Major
>
> We (cc [~goiri]/[~botong]) observed that the {{FederationInterceptor}} in
> {{AMRMProxy}} (and consequently the AM) is blocked if the _StateStore_ has
> outdated info about a _SubCluster_. This is because we handle AM register
> requests synchronously. This jira proposes to move to async similar to how we
> operate with allocate invocations.
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