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https://issues.apache.org/jira/browse/RANGER-4100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17692932#comment-17692932
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Madhan Neethiraj commented on RANGER-4100:
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Policy evaluator lookup is updated with the same optimization:
master:
[https://github.com/apache/ranger/commit/93e888f7c0d12bd18426a49719fa996f8874d162]
ranger-2.4:
[https://github.com/apache/ranger/commit/0f930c9053d080555544f5e515059e8d292cc22d]
> Efficient computation of the smallest set of evaluators returned by search of
> multiple Trie trees
> -------------------------------------------------------------------------------------------------
>
> Key: RANGER-4100
> URL: https://issues.apache.org/jira/browse/RANGER-4100
> Project: Ranger
> Issue Type: Improvement
> Components: Ranger
> Reporter: Abhay Kulkarni
> Assignee: Abhay Kulkarni
> Priority: Major
> Fix For: 3.0.0, 2.4.0
>
>
> The algorithm that computes the intersection of evaluators returned when
> multiple trie structures are searched depends on the order in which the trie
> structures are searched. This is sub-optimal, when the evaluators returned by
> trie structure that is searched earlier happens to be a bigger set then the
> evaluators by the search of later trie structures.
> This Jira updates the intersection computation to be more optimal and not
> dependent for performance on the order of search of the trie structures.
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