star created RANGER-2878:
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Summary: Add read write lock to RangerResourceTrie
Key: RANGER-2878
URL: https://issues.apache.org/jira/browse/RANGER-2878
Project: Ranger
Issue Type: Bug
Components: plugins
Affects Versions: 2.0.0
Reporter: star
Assignee: star
Current incremental policy update mechanism may cause issues in two cases.
1. When policy is updated, it is consist of two operations: delete then
add. Policy is temporarily unavailable after delete and before add operation.
It may cause task failure.
2. RangerResourceTrie is also updated when matching policies (ref
RANGER-2760 and RANGER-2761). Without read write lock, it will lead to chaos
and inaccurate result.
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