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https://issues.apache.org/jira/browse/SPARK-26867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16782105#comment-16782105
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Sean Owen commented on SPARK-26867:
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How would Spark use it?
> Spark Support of YARN Placement Constraint
> ------------------------------------------
>
> Key: SPARK-26867
> URL: https://issues.apache.org/jira/browse/SPARK-26867
> Project: Spark
> Issue Type: New Feature
> Components: Spark Core, YARN
> Affects Versions: 3.0.0
> Reporter: Prabhu Joseph
> Priority: Major
>
> YARN provides Placement Constraint Features - where application can request
> containers based on affinity / anti-affinity / cardinality to services or
> other application containers / node attributes. This is a useful feature for
> Spark Jobs.
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