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From "Madhan Neethiraj (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (RANGER-1162) Tag lookup optimization: use prefix lookup to reduce number of evaluators attempted
Date Thu, 15 Sep 2016 20:04:20 GMT

    [ https://issues.apache.org/jira/browse/RANGER-1162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15494370#comment-15494370
] 

Madhan Neethiraj commented on RANGER-1162:
------------------------------------------

Committed to ranger-0.6:
 - http://git-wip-us.apache.org/repos/asf/incubator-ranger/commit/5fa2e887
 - http://git-wip-us.apache.org/repos/asf/incubator-ranger/commit/46f95f72


> Tag lookup optimization: use prefix lookup to reduce number of evaluators attempted
> -----------------------------------------------------------------------------------
>
>                 Key: RANGER-1162
>                 URL: https://issues.apache.org/jira/browse/RANGER-1162
>             Project: Ranger
>          Issue Type: Bug
>          Components: plugins
>    Affects Versions: 0.6.0
>            Reporter: Madhan Neethiraj
>            Assignee: Madhan Neethiraj
>         Attachments: RANGER-1162.2.patch, RANGER-1162.3.patch, RANGER-1162.4.patch, RANGER-1162.patch
>
>
> Based on the improvements seen in policy-evaluation response time, after changes in RANGER-1161,
the logic to determine the tags for the accessed-resource can benefit with the same approach.
Currently the policy engine attempts to match the resource with all service-resources. The
number of evaluators attempted can be reduced by using a better arrangement/lookup of service-resources
- like trie.



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