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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/64661/
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(Updated Aug. 15, 2018, 12:26 p.m.)


Review request for sentry, kalyan kumar kalvagadda, Na Li, Steve Moist, and 
Sergio Pena.


Bugs: SENTRY-1944
    https://issues.apache.org/jira/browse/SENTRY-1944


Repository: sentry


Description
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When Solr is using Sentry server for authorization, it issues a lot of calls to 
getGroupsByRoles() function in DelegateSentryStore.

This function isn't very efficient - it walks over each role in the set, 
obtains role by name, get groups for each role, and collects all group names 
into a set.

It may be possible to optimize it.

Also, in SentryGenericPolicyProcessor class method list_sentry_roles_by_group() 
would make N transactions to build the roles to set of groups map. Instead, 
make it to a single transaction. This will significantly speed up operation

Attach one or more files to this issue


Diffs
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sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/provider/db/generic/service/persistent/DelegateSentryStore.java
 4cb46abc5 
  
sentry-provider/sentry-provider-db/src/test/java/org/apache/sentry/provider/db/generic/service/persistent/TestDelegateSentryStore.java
 69d16238f 


Diff: https://reviews.apache.org/r/64661/diff/4/


Testing
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mvn -f sentry-provider/sentry-provider-db/pom.xml test


Thanks,

Arjun Mishra

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