Prometheus’s simple and reliable operational model is one of its major selling points. However, after surpassing a certain scale, we have identified a few shortcomings it imposes. We are proud to present Thanos, an open source project by Improbable that bundles a set of components that seamlessly transform existing Prometheus deployments, into a unified, global scale monitoring system. Authors: Fabian Reinartz, Bartlomiej Plotka Slides from January London Prometheus Meetup 2018. Thanos: https://github.com/improbable-eng/thanos