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https://issues.apache.org/jira/browse/SENTRY-1825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16078075#comment-16078075
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kalyan kumar kalvagadda commented on SENTRY-1825:
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Will be handling this code change separately as the HMSFollower refactoring is
in it's final state of review. It's not a good idea to bring in new functional
changes at this point in time.
> Dropping a Hive database/table doesn't cleanup the permissions associated
> with it
> ----------------------------------------------------------------------------------
>
> Key: SENTRY-1825
> URL: https://issues.apache.org/jira/browse/SENTRY-1825
> Project: Sentry
> Issue Type: Sub-task
> Affects Versions: sentry-ha-redesign
> Reporter: Vamsee Yarlagadda
> Assignee: kalyan kumar kalvagadda
> Priority: Critical
> Labels: sentry-ha
>
> Sasha helped in finding this bug. Looks like dropping a database/table does
> no longer clean up the privileges associated with it.
> This problem is because of:
> https://github.com/apache/sentry/blob/sentry-ha-redesign/sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/service/thrift/HMSFollower.java#L126-L127
> {code}
> final HiveConf hiveConf = new HiveConf();
> hiveInstance =
> hiveConf.get(HiveAuthzConf.AuthzConfVars.AUTHZ_SERVER_NAME.getVar());
> {code}
> With the latest redesign, we are only setting this property on Hive's
> (sentry-site.xml) and not on Sentry's (sentry-site.xml).
> So during permission grants, Hive ensures to supply the *server1* for
> permission updates. But when we drop the table/database that has the perms
> attached, it goes through HMSFollower and this code sets the property as NULL
> as sentry-site.xml doesn't have this set. So it attempts to remove
> permissions with NULL server setting and this always returns without deleting
> anything.
> We need to ensure that the corresponding property is set on both (Sentry,
> Hive) sentry-site.xml to ensure referring to proper privileges.
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