This summary delves into the various methods of collecting operational data for monitoring OpenStack's computation module, Nova. It discusses the importance of combining data from different channels to get a complete picture of the deployment. The post covers three main categories: collecting Nova metrics via API or SQL queries, using the CLI, and gathering metrics from RabbitMQ. Additionally, it explores collecting notifications, service checks, and API checks to gain valuable insights into system behavior. By leveraging these methods, users can effectively monitor their OpenStack deployments and identify potential issues.