Abhishek Singh created RANGER-5764:
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Summary: Enhancing the performance of RangerUserStore
Key: RANGER-5764
URL: https://issues.apache.org/jira/browse/RANGER-5764
Project: Ranger
Issue Type: Improvement
Components: Ranger
Affects Versions: 3.0.0
Reporter: Abhishek Singh
Assignee: Abhishek Singh
Currently, when RangerUserStoreCache refreshes the user store from the
database, it always attempts to load user-to-group mappings. In large
deployments with a high number of users and groups, loading these mappings on
every refresh can significantly increase DB load time and memory footprint,
even when downstream consumers do not require the user-group mappings.
Therefore a flag based approach can be Proposed to include or exclude the
user-group mappings .
Currently this line in RangerUserStoreCache.java
final Map<String, Set<String>> userGroups = xUserMgr.getUserGroups() , is the
main case of the performance issues in large environments .
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