Skip to content


PromQL 101

Chris Ward giving An Introduction to PromQL. This is a super helpful introductory piece, thanks much, Chris!

Otel convo

In Unpacking observability and OpenTelemetry with Spiros Xanthos of Splunk shares some interesting insights.


Amazon Timestream - Time series is the new black by Werner Vogels is an excellent piece on the motivation behind and inner workings of this exciting service.

Reflecting on signals

I was reflecting On The Value Of Signals, providing some thoughts about open specifications and open source in the o11y context.

Cortex limits

Jan-Philip Gehrcke of Opstrace wrote Dynamic per-tenant Cortex limits, configurable via UI, a nice hands-on piece on a relevant topic in the metrics space.

Context propagation

The one and only Ted Young of Lighstep on The painful simplicity of context propagation in Go is a short video up on YouTube, explaining how context works in Go, and how it relates to distributed tracing.

Otel collector

My colleagues Vastin He and Min Xia wrote a nice article about Managing AWS Distro for OpenTelemetry Collector with AWS Systems Manager Distributor.

Logging basics

Logging is important by Giovanni Collazo is a solid intro and good practices piece I can recommend you to read.

Continuous profiling

Frederic Branczyk and Matthias Loibl of Polar Signals were guests at the GitLabs Unfiltered show, check out Continuous Profiling with Polar Signals via YouTube, including a demo.

OpenSearch plugin

My First Steps in OpenSearch Plugins by Amitai Stern is a really good deep-dive on writing a plugin development for OpenSearch. Thank you!

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!