Metering Overview

Metering in OpenStack involves collecting, tracking, and analyzing the usage data of various resource types within your cloud environment (crucial for billing, monitoring, and performance optimization). This functionality is achieved by leveraging the Ceilometer and Gnocchi projects.

Ceilometer and Gnocchi work together to provide a powerful solution for resource tracking in environments of all sizes. Their combined importance lies in their complementary roles such as collecting, storing, and processing of telemetry data at scale.

Once processed and stored, these resource data can be queried through Gnocchi, also known as the Metrics API. This data serves a wide range of use cases, including auditing, billing, monitoring, and more.