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https://issues.apache.org/jira/browse/RANGER-2188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16629771#comment-16629771
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Abhay Kulkarni commented on RANGER-2188:
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ranger-0.7:
[https://git-wip-us.apache.org/repos/asf?p=ranger.git;a=commit;h=660707eb3ae25a4b9666e28e9de0fc2cef72c1c1]
https://git-wip-us.apache.org/repos/asf?p=ranger.git;a=commit;h=d533e10afbc6951b52967d3d4a906bff8a6ee013
> Support multiple threads to build Trie and on-lookup post-setup for Trie nodes
> ------------------------------------------------------------------------------
>
> Key: RANGER-2188
> URL: https://issues.apache.org/jira/browse/RANGER-2188
> Project: Ranger
> Issue Type: Bug
> Components: Ranger
> Affects Versions: master
> Reporter: Abhay Kulkarni
> Assignee: Abhay Kulkarni
> Priority: Major
> Fix For: 2.0.0, 1.2.0
>
>
> Time for building a Trie index for resources may become a bottleneck when
> dealing with large number of resources. It is desirable to build different,
> non-overlapping parts of Trie structure using multiple threads to reduce
> overall build time if configured to do so.
> Also, instead of building out all Trie nodes completely (that is, by
> propagating wildcard evaluators all the way to all leaves of Trie tree) at
> the initialization time, it is optimal to do so as a Trie-Node is accessed
> for the first time during resource lookup.
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