Abhay Kulkarni created RANGER-4905:
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Summary: Reduce memory needed to create Ranger policy engine
Key: RANGER-4905
URL: https://issues.apache.org/jira/browse/RANGER-4905
Project: Ranger
Issue Type: Improvement
Components: Ranger
Reporter: Abhay Kulkarni
Assignee: Abhay Kulkarni
Ranger policy engine creates a RangerPolicyResourceMatcher object for every
resource specified either in policy or in a tag association.
PolicyResourceMatcher, for the services that have more than one level in their
resource hierarchy, consists of RangerResourceMatcher objects for each level in
the resource-level hierarchy for the resource. In many cases, this leads to
creation of multiple RangerResourceMatchers with identical resource
specification.
This Jira avoids creation of multiple RangerResourceMatcher objects by
maintaining a cache of them in the RangerPluginContext object associated with
the Ranger policy engine, thereby reducing policy engine's memory needs.
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