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