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Ship it!




Ship It!

- kalyan kumar kalvagadda


On Jan. 28, 2019, 4:19 p.m., Na Li wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/69840/
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> 
> (Updated Jan. 28, 2019, 4:19 p.m.)
> 
> 
> Review request for sentry, Arjun Mishra, Haley Reeve, and kalyan kumar 
> kalvagadda.
> 
> 
> Bugs: sentry-2491
>     https://issues.apache.org/jira/browse/sentry-2491
> 
> 
> Repository: sentry
> 
> 
> Description
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> 
> In sentry unit tests, we don't create schema before running a test. Instead, 
> we use dataNucleus to create sentry tables when they are accessed. This 
> creates potential deadlock when running test for Sentry HA setup.
> 
> The solution is to let the instances of sentry service start with delay. 
> Specifically,
> let HMS follower threads separate as far as possible, i.e., half of the 
> interval.
> 
> This deadlock only exists in unit tests, and does not exist in production 
> because schema is created before starting Sentry services. Therefore, there 
> is no table creation after service starts.
> 
> 
> Diffs
> -----
> 
>   
> sentry-tests/sentry-tests-hive/src/test/java/org/apache/sentry/tests/e2e/minisentry/InternalSentrySrv.java
>  9fa42f2 
> 
> 
> Diff: https://reviews.apache.org/r/69840/diff/3/
> 
> 
> Testing
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> 
> such deadlock does not happen with this fix.
> Other unit tests passed
> 
> 
> Thanks,
> 
> Na Li
> 
>

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