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(Updated Aug. 17, 2018, 1:07 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 ------- 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 (updated) ----- sentry-service/sentry-service-server/src/main/java/org/apache/sentry/api/generic/thrift/SentryGenericPolicyProcessor.java 1cc4b1b37 sentry-service/sentry-service-server/src/main/java/org/apache/sentry/provider/db/generic/service/persistent/DelegateSentryStore.java 3026a6225 sentry-service/sentry-service-server/src/main/java/org/apache/sentry/provider/db/generic/service/persistent/SentryStoreLayer.java eec2757d3 sentry-service/sentry-service-server/src/test/java/org/apache/sentry/api/generic/thrift/TestSentryGenericPolicyProcessor.java 4c207e9b4 sentry-service/sentry-service-server/src/test/java/org/apache/sentry/provider/db/generic/service/persistent/TestDelegateSentryStore.java 69d16238f Diff: https://reviews.apache.org/r/64661/diff/7/ Changes: https://reviews.apache.org/r/64661/diff/6-7/ Testing ------- mvn -f sentry-provider/sentry-provider-db/pom.xml test Thanks, Arjun Mishra