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https://issues.apache.org/jira/browse/YARN-7339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16217365#comment-16217365
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Carlo Curino commented on YARN-7339:
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Thanks [~botong] for the contribution. Per our offline discussion, I agree with
the fix and the patch LGTM.
Given the happy yetus I am committing this to trunk and branch-3.0.
The patch doesn't apply cleanly to branch-2 can you please check what is the
issues (likely minor).
Please upload a patch for branch-2 ASAP as the release 2.9 is being cut from
this very soon.
> LocalityMulticastAMRMProxyPolicy should handle cancel request properly
> ----------------------------------------------------------------------
>
> Key: YARN-7339
> URL: https://issues.apache.org/jira/browse/YARN-7339
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Botong Huang
> Assignee: Botong Huang
> Priority: Minor
> Attachments: YARN-7339-v1.patch, YARN-7339-v2.patch,
> YARN-7339-v3.patch, YARN-7339-v4.patch, YARN-7339-v5.patch, YARN-7339-v6.patch
>
>
> Currently inside AMRMProxy, LocalityMulticastAMRMProxyPolicy is not handling
> and splitting cancel requests from AM properly:
> # For node cancel request, we should not treat it as a localized resource
> request. Otherwise it can lead to all weight zero issue when computing
> localized resource weight.
> # For ANY cancel, we should broadcast to all known subclusters, not just the
> ones associated with localized resources.
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