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From "kalyan kumar kalvagadda (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SENTRY-2307) Avoid HMS event synchronization while sentry is fetching full snapshot.
Date Wed, 15 Aug 2018 21:36:00 GMT

     [ https://issues.apache.org/jira/browse/SENTRY-2307?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

kalyan kumar kalvagadda updated SENTRY-2307:
--------------------------------------------
    Attachment: SENTRY-2307.002.patch

> Avoid HMS event synchronization while sentry is fetching full snapshot. 
> ------------------------------------------------------------------------
>
>                 Key: SENTRY-2307
>                 URL: https://issues.apache.org/jira/browse/SENTRY-2307
>             Project: Sentry
>          Issue Type: Sub-task
>          Components: Sentry
>    Affects Versions: 2.1.0
>            Reporter: kalyan kumar kalvagadda
>            Assignee: kalyan kumar kalvagadda
>            Priority: Major
>             Fix For: 2.1.0
>
>         Attachments: SENTRY-2307.001.patch, SENTRY-2307.002.patch
>
>
> Sentry tries to synchronize the HMS operations to make sure that sentry server process
the notifications for create/drop/alter table and databases before it receives permission
grants/revokes on them. Blocking HMS threads to make sentry processes appropriate notifications
makes sense but doing the same when full snapshot is taken doesn’t serve any purpose as
sentry server doesn’t update sentry permissions based on HMS full snapshot. We can document
that there sentry could have some stale permissions  when there are any DDL operations performed
at the time of snapshot creation.



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