ji chen has uploaded this change for review. ( http://gerrit.cloudera.org:8080/20439
Change subject: IMPALA-12397: NullPointerException in SHOW ROLES when there are no roles ...................................................................... IMPALA-12397: NullPointerException in SHOW ROLES when there are no roles When there are no roles in Ranger, SHOW ROLES statement hits NullPointerException. The root cause is following statement plugin_.get().getRoles().getRangerRoles(), will return null for latest version of ranger plugin, the issue is not observed in previous version of ranger plugin. This patch will catch the NullPointerException if the exception occurs, it will return a reference to empty hashset. the corresponding unit test and end to end test are added to cover all SHOW ROLE statement cases. Testing: - Pass unit tests. - Pass e2e tests. - Pass core tests with ranger enabled Change-Id: Id80fc2c9152a09194718da1b4266c5f804f0971f --- M fe/src/main/java/org/apache/impala/authorization/ranger/RangerImpaladAuthorizationManager.java A fe/src/test/java/org/apache/impala/authorization/ranger/RangerImpaladAuthorizationManagerTest.java M tests/authorization/test_ranger.py 3 files changed, 111 insertions(+), 2 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/39/20439/1 -- To view, visit http://gerrit.cloudera.org:8080/20439 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: Id80fc2c9152a09194718da1b4266c5f804f0971f Gerrit-Change-Number: 20439 Gerrit-PatchSet: 1 Gerrit-Owner: ji chen <jichen0...@163.com>
