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(Updated Nov. 10, 2015, 1:03 p.m.) Review request for Ambari, Alejandro Fernandez, Gautam Borad, Jonathan Hurley, and Velmurugan Periasamy. Changes ------- Updated with final input from Ranger team Bugs: AMBARI-13797 https://issues.apache.org/jira/browse/AMBARI-13797 Repository: ambari Description ------- Need a prereq check to confirm that Ambari's password for Ranger will work against the Ranger server. It's possible to change the password using the Ranger UI, so this check attempts to verify that. The Ranger access points are still under investigation, but shouldn't impact the logic of the code. The general rules are: - Try to access Ranger using admin credentials. 401=FAIL, 200=PASS, other or IOException: WARN. - If PASS, check to load the users JSON and look for Ranger Admin User. Do not fail if user doesn't exist (not sync'ed). - If Ranger Admin User is found, access Ranger with credentials. 401=FAIL, 200=PASS, other or IOException=WARN. We only want to FAIL when it's truly known that the credentials are bad. Only PASS when it's truly known the credentials are good. WARNING every other case. Diffs (updated) ----- ambari-server/src/main/java/org/apache/ambari/server/checks/CheckDescription.java 1908c06 ambari-server/src/main/java/org/apache/ambari/server/checks/RangerPasswordCheck.java PRE-CREATION ambari-server/src/test/java/org/apache/ambari/server/checks/RangerPasswordCheckTest.java PRE-CREATION Diff: https://reviews.apache.org/r/40099/diff/ Testing ------- Manual. Automated pending. Thanks, Nate Cole