Fredy Wijaya created IMPALA-8671:
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Summary: Do not re-create a new instance of AuthorizationChecker
with Ranger authorization
Key: IMPALA-8671
URL: https://issues.apache.org/jira/browse/IMPALA-8671
Project: IMPALA
Issue Type: Sub-task
Components: Frontend
Reporter: Fredy Wijaya
Assignee: Fredy Wijaya
RangerAuthorizationChecker is stateless unlike SentryAuthorizationChecker.
However, in some cases, we always re-create a new instance of
RangerAuthorizationChecker due to the logic here:
https://github.com/apache/impala/blob/3bd53972cec3b8a863075cb2344115a950be848a/fe/src/main/java/org/apache/impala/service/Frontend.java#L290-L293.
This causes the plugin to be re-initialized, which can be expensive. The
solution is to reuse the same RangerAuthorizationChecker instance.
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