If the Ranger plugin is enabled for HBase, perform the following steps:
Login on Ranger Admin Web Portal:
http://<RANGER_HOST>:<PORT>
(The default port is 6080.)
Go to Audit- > Agent. Make sure that the HBase agent has connected to Ranger Admin.
Go to Audit -> Access Log. Check the HBase logs for errors.
After validating the Ranger downgrade, continue with the next downgrade step.