Name: How To Rename Metrics Without Impacting Somebody’s Observability - Bartłomiej Płotka, Google & Arianna Vespri, Independent
Start: 2025-04-03T15:00:00+0100
End: 2025-04-03T15:30:00+0100

In-person
1-4 April 2025
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Thursday April 3, 2025 15:00 - 15:30 BST

Level 1 | Hall Entrance N10 | Room G

Metrics are a core aspect of modern cloud-native observability and monitoring. With the Prometheus project, it’s easy to create metrics and adopt existing ones from applications or exporters. It's easy to build layers of tools, alerts, dashboards and integrations that depend on specific metrics. Unnoticed, metric names and labels became an API contract between instrumentation and consumers.

However, second-day operations kick in! New standards, naming opinions and software versions force metrics to be changed, causing major downstream breakages. Projects like Kubernetes or OpenTelemetry started frameworks to raise awareness about this problem. Can we do more?

In this talk, Bartek (Prometheus maintainer) and Arianna (Prometheus client_golang maintainer) will explore renaming strategies for Prometheus and OpenTelemetry end users. Finally, they will discuss existing conventions and frameworks for stable metric versioning that could be adopted by the next generation of instrumentation.

Speakers

Bartłomiej Płotka

Sr Software Engineer, Google

Bartek Płotka is a Senior Software Engineer at Google. SWE by heart, with an SRE background, currently working on Cloud Observability. Previously Principal Software Engineer at Red Hat. Author of "Efficient Go" book with O'Reilly. As the co-founder of the CNCF Thanos project and... Read More →

Arianna Vespri

Software Engineer, Self-employed

Arianna Vespri is a Go developer with a background in the music industry. Passionate about monitoring and observability, is a Prometheus contributor and a maintainer of Prometheus client_golang. Active as an electronic musician for decades under a pseudonym, is very familiar with... Read More →

Thursday April 3, 2025 15:00 - 15:30 BST
Level 1 | Hall Entrance N10 | Room G

Observability

Content Experience Level Intermediate

KubeCon + CloudNativeCon Europe 2025

Bartłomiej Płotka

Arianna Vespri

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