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Happy New Year to you and welcome back to!

Revolution in o11y

In Unveiling the Causal Revolution in Observability Andrew Mallaband writes about the importance of open standards, unsurprisingly, in o11y land focusing on OpenTelemetry.

Performance profiling

Embracing performance profiling: Canonical enables frame pointers in Ubuntu 24.04 LTS by Frederic Branczyk is a short but important status update.

Applied OpenTelemetry

Krisztian Fekete wrote OpenTelemetry Internals: Adding Node Name as a Label to Kubelet Metrics where he shows how to use a processor in a collector pipeline to tackle a challenge he faced using the Kubelet Stats receiver. Nice!

Restricting Prometheus queries

Restricting Label Values in Prometheus via prom-label-proxy by Tanmay Bhat is a nice hands-on piece on how to use the prom-label-proxy to restrict PromQL queries.

OpenTelemetry review

Via TNS: OpenTelemetry and Observability: Looking Forward by Ken Hamric reviews 2023 and glances into 2024.

That was it for this edition of the o11y newsletter. Feel free to share news items with me via Twitter—DMs are open if you like to share something in private. Stay safe and hope to see you around next week!