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https://issues.apache.org/jira/browse/YARN-7972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16381059#comment-16381059
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Wangda Tan commented on YARN-7972:
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[~cheersyang], I'd prefer to remove the {{ns:}} prefix.
> Support inter-app placement constraints for allocation tags by application ID
> -----------------------------------------------------------------------------
>
> Key: YARN-7972
> URL: https://issues.apache.org/jira/browse/YARN-7972
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
> Priority: Major
> Attachments: YARN-7972.001.patch, YARN-7972.002.patch
>
>
> Per discussion in [this
> comment|https://issues.apache.org/jira/browse/YARN-6599focusedCommentId=16319662&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16319662]
> in YARN-6599, we need to support inter-app PC for allocation tags.
> This will help to do better placement when dealing with potential competing
> resource applications, e.g don't place two tensorflow workers from two
> different applications on one same node.
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