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https://issues.apache.org/jira/browse/YARN-8715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16614665#comment-16614665
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Sunil Govindan commented on YARN-8715:
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bq.If the expression contains a single spec, the sourceTags can be optional for
node-attribute constraint but enforced for allocation-tag constraint
Yes, this makes sense [~cheersyang]. In such cases, we can enforce for a single
constraint.
I am fine with this patch, will get this in later today if no objections.
> Make allocation tags in the placement spec optional for node-attributes
> -----------------------------------------------------------------------
>
> Key: YARN-8715
> URL: https://issues.apache.org/jira/browse/YARN-8715
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
> Priority: Major
> Attachments: YARN-8715.001.patch
>
>
> YARN-7863 adds support to specify constraints targeting to node-attributes,
> including the support in distributed shell, but it still needs to specify
> {{allocationTags=numOfContainers}} in the spec. We should make this optional
> as it is not required for node-attribute expressions.
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