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https://issues.apache.org/jira/browse/YARN-7822?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16345048#comment-16345048
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Weiwei Yang commented on YARN-7822:
-----------------------------------
Hi [~kkaranasos]
Attached v5 patch that basically supports all nested forms of constraints, it's
relative easy as when we iterate over the constraint tree, we only need to
compute child constraint result to determine if the composite constraint is
satisfied or not. So it's like
{code}
//Cn can be either a single constraint (target expression, cardinality
expression etc) or a composite constraint (AND or OR)
[AND|OR](C1, ..., Cn)
{code}
Also added test case in {{TestPlacementConstraintsUtil}}.
Please take a look. Thanks.
> Constraint satisfaction checker support for composite OR and AND constraints
> ----------------------------------------------------------------------------
>
> Key: YARN-7822
> URL: https://issues.apache.org/jira/browse/YARN-7822
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Arun Suresh
> Assignee: Weiwei Yang
> Priority: Major
> Attachments: YARN-7822-YARN-6592.001.patch,
> YARN-7822-YARN-6592.002.patch, YARN-7822-YARN-6592.003.patch,
> YARN-7822-YARN-6592.004.patch, YARN-7822-YARN-6592.005.patch
>
>
> JIRA to track changes to {{PlacementConstraintsUtil#canSatisfyConstraints}}
> handle OR and AND Composite constaints
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