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https://issues.apache.org/jira/browse/IMPALA-7795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16670532#comment-16670532
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Fredy Wijaya commented on IMPALA-7795:
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Yeah but currently none of the existing "refresh" and "invalidate" commands
refreshes only the authorization data. We need something more fine-grained like
"invalidate metadata <table>" or "refresh <table>" or "refresh functions". The
use case when a user updates authorization externally either from Sentry
directly or Hive is very common. Having to wait until Impala refreshes its
authorization data or calling "invalidate metadata", which is not encouraged
does not seem like a very good user experience. Let me know what you think.
> Add a command to refresh authorization data
> -------------------------------------------
>
> Key: IMPALA-7795
> URL: https://issues.apache.org/jira/browse/IMPALA-7795
> Project: IMPALA
> Issue Type: New Feature
> Components: Catalog, Frontend
> Reporter: Fredy Wijaya
> Priority: Major
>
> There is currently no way to refresh authorization data (privileges and
> principals) without calling "invalidate metadata" (which is very costly) and
> increasing the polling time. There needs to be a way to explicitly refresh
> the authorization data similar to "refresh functions".
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