This series of posts delves into monitoring OpenStack Nova, the Compute module responsible for provisioning and managing virtual machines. Key metrics and events are categorized into hypervisor metrics, tenant metrics, nova server metrics, RabbitMQ metrics, and notifications. Monitoring these metrics helps ensure even load distribution across compute nodes, prevents resource exhaustion, and provides a comprehensive view of the OpenStack environment. Part 2 of this series explores collecting operational data from Nova, while Part 3 details monitoring Nova with Datadog, and Part 4 discusses Lithium's approach to monitoring OpenStack.