If you use the HBase REST server, follow these steps. Otherwise, continue with the next step in the upgrade process.
The HBase REST server does not support rolling downgrade; you can’t keep it running as you downgrade. To downgrade the REST server, stop and start the process:
su - hbase -c "/usr/hdp/current/hbase-master/bin/hbase-daemon.sh stop
rest"
su - hbase -c "/usr/hdp/current/hbase-master/bin/hbase-daemon.sh start rest
--infoport <port>"
(for example, port 8085)
When finished, verify that the REST server accepts traffic. 17000 is the default port for REST:
REST-gateway:17000/version
Continue with the next downgrade step.
