[jira] [Resolved] (IMPALA-2267) "invalidate metadata" should only clear metadata for those tables the current user has access to

["Tim Armstrong (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-2267?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong resolved IMPALA-2267.
-----------------------------------
    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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