Verify the Data processing service installation To verify the Data processing service (sahara) is installed and configured correctly, try requesting the clusters list using the sahara client. Source the demo tenant credentials: $ source demo-openrc.sh Retrieve the sahara clusters list: $ sahara cluster-list You should see output similar to this: +------+----+--------+------------+ | name | id | status | node_count | +------+----+--------+------------+ +------+----+--------+------------+