Alexander Kolbasov created SENTRY-1483:
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Summary: HMS plugin should wait until Sentry handles the update
before continuing.
Key: SENTRY-1483
URL: https://issues.apache.org/jira/browse/SENTRY-1483
Project: Sentry
Issue Type: Sub-task
Components: Hive Plugin, Sentry
Affects Versions: hive_plugin_v2, sentry-ha-redesign
Reporter: Alexander Kolbasov
Once Sentry switches to HMS notifications which are processed asynchronously we
have problem with session consistency.
Suppose that we have a session which creates a table and then grants
permissions to it. The table create is handled as HMS notification event and
will eventually reach Sentry. The DDL with permission grant is in-line and is
likely to reach Sentry *before* the table create request. This will cause the
grant to unexpectedly fail although it is a perfectly valid operation.
The proposed solution is to include a "sync barrier" RPC call to Sentry which
will block until the specified notification ID is processed by Sentry. Every
HMS operation that generates notifications for Sentry should be followed by
such sync call.
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