[jira] [Commented] (YARN-7652) Handle AM register requests asynchronously in FederationInterceptor

["SammiChen (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-7652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16387355#comment-16387355 ] 

SammiChen commented on YARN-7652:
---------------------------------

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that the {{FederationInterceptor}} in {{AMRMProxy}} (and consequently the AM) is blocked if the _StateStore_ has outdated info about a _SubCluster_.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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