Fredy Wijaya has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/11794 )

Change subject: IMPALA-7760: Privilege version inconsistency causes a hang when 
running invalidate metadata
......................................................................


Patch Set 4:

> Patch Set 4:
>
> > Yes, I created some follow-up JIRAs for this.
>  > a) https://issues.apache.org/jira/browse/IMPALA-7764
>
> This was very generic ("add unit tests.") We have a specific case here that 
> we need to add to our tests, which involves (if I'm reading things right) 
> removing the last permission from Sentry. That seems sensible to do as an 
> end-to-end test (in custom cluster?).
>
> Anyway--are we working on this right now?
>
>  > b) https://issues.apache.org/jira/browse/IMPALA-7762
>
> Thanks.

It was a subtle bug and it was difficult to write an end-to-end test to 
reproduce this because we need to get the timing right. I did some end-to-end 
test for a similar issue but it was easier to reproduce: 
https://github.com/apache/impala/blob/master/tests/authorization/test_grant_revoke.py#L373-L393
Anyway, yes, I'm working on beefing up tests related to SentryProxy (which 
includes unit tests and end-to-end tests). I'll rename the subject in JIRA to 
make it clear.


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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ib1e0db2b1f727476f489c732c4f4e5bc1582429f
Gerrit-Change-Number: 11794
Gerrit-PatchSet: 4
Gerrit-Owner: Fredy Wijaya <fwij...@cloudera.com>
Gerrit-Reviewer: Adam Holley <ahol...@cloudera.com>
Gerrit-Reviewer: Csaba Ringhofer <csringho...@cloudera.com>
Gerrit-Reviewer: Fredy Wijaya <fwij...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Philip Zeyliger <phi...@cloudera.com>
Gerrit-Reviewer: Vuk Ercegovac <vercego...@cloudera.com>
Gerrit-Comment-Date: Mon, 29 Oct 2018 16:22:28 +0000
Gerrit-HasComments: No

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