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https://issues.apache.org/jira/browse/IMPALA-2267?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong resolved IMPALA-2267.
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Resolution: Won't Do
> "invalidate metadata" should only clear metadata for those tables the
> current user has access to
> -------------------------------------------------------------------------------------------------
>
> Key: IMPALA-2267
> URL: https://issues.apache.org/jira/browse/IMPALA-2267
> Project: IMPALA
> Issue Type: Improvement
> Components: Catalog
> Affects Versions: Impala 2.2.4
> Reporter: Yibing Shi
> Priority: Minor
> Labels: ramp-up, usability
>
> In impala, users often execute {{invalidate metadata}} (without any table) to
> clear the metadata cache. Since by default this affects all the
> databases/tables on the cluster, Sentry asks users to have privileges on the
> whole cluster (or "server" in Sentry's terminology) to execute this. However,
> this brings a huge inconvenience to customers, especially when they have
> multiple tables to refresh. They must do this one table by one.
> From my point of view, when sentry is enabled, we should allow users to clear
> the metadata cache for all the tables he/she has access to, instead of asking
> for superuser privilege and clear all the tables metadata.
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