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https://issues.apache.org/jira/browse/YARN-3666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15966123#comment-15966123
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Carlo Curino commented on YARN-3666:
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[~botong] if you are very confident about the fact that findbugs is wrong, you
can avoid the alert annotating the method with something like:
{code}@SuppressWarnings(value="RCN_REDUNDANT_NULLCHECK_OF_NULL_VALUE"){code}
> Federation Intercepting and propagating AM-RM communications
> ------------------------------------------------------------
>
> Key: YARN-3666
> URL: https://issues.apache.org/jira/browse/YARN-3666
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: nodemanager, resourcemanager
> Reporter: Kishore Chaliparambil
> Assignee: Botong Huang
> Attachments: YARN-3666-YARN-2915.v1.patch,
> YARN-3666-YARN-2915.v2.patch
>
>
> In order, to support transparent "spanning" of jobs across sub-clusters, all
> AM-RM communications are proxied (via YARN-2884).
> This JIRA tracks federation-specific mechanisms that decide how to
> "split/broadcast" requests to the RMs and "merge" answers to
> the AM.
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