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https://issues.apache.org/jira/browse/IMPALA-8671?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Fredy Wijaya resolved IMPALA-8671.
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Resolution: Fixed
Fix Version/s: Impala 3.3.0
> 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
> Priority: Critical
> Fix For: Impala 3.3.0
>
>
> 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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