Michael Hausenblas

ohyaml.wtf | YAML Quiz YAML is known to be nobody's friend and almost everyone's enemy. Try this to see if it's your friend or foe!

Hey @juliusv.com does that exist for PromQL? Asking for a friend …

www.ohyaml.wtf

Nicely done and that's also why I included it in this week's edition of o11y.news ;)

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Check out this week's o11y newsletter. An exciting collection from lessons learned to new things available to best practices:

o11y.news/2025-08-04/

#observability

💫 A new hope for frontend #observability...

Join us THURSDAY, July 31 for “Coming soon to a browser near you: #OpenTelemetry,” a panel with key members of the new #OTEL Browser SIG as they explore the future of #frontend observability.

📍 Register to join (and get the recording): ow.ly/x2eA50WpG6W

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Check out this week's o11y newsletter with excellent contributions from hands-on OpenTelemetry to end-user knowledge sharing:

o11y.news/2025-07-28/

#observability

If you're serious, let's talk. Happy to share some experiences from writing a few ;)

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Check out this week's o11y newsletter with useful guidance and context all things OpenTelemetry, Prometheus, and wider observability topics:

o11y.news/2025-07-21/

#observability

Can’t wait to queue for o11y.news ;)

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Check out this week's o11y newsletter with excellent topics ranging from hands-on guidance to expert insights:

o11y.news/2025-07-14/

#observability

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Check out this week's o11y newsletter with contributions ranging from OpenTelemetry auto-instrumentation to video recordings of the Open Observability Summit & OTel Community Day, and more:

o11y.news/2025-07-07/

#observability

YouTube video by CNCF [Cloud Native Computing Foundation] Sponsored Keynote: Why Semantic Conventions are OpenTelemetry’s Most Important Con... Gordon Radlein

All the talks from OTel Community Day and Open Observability Summit are up!

m.youtube.com/watch?v=dlDT...

#otelDay #opentelemetry

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Check out this week's o11y newsletter, with a nice mix of hands-on material and innovations:

o11y.news/2025-06-30/

#observability

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Check out this week's o11y newsletter with an exciting event, great insights, and how-tos:

o11y.news/2025-06-23/

#observability

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Check out this week's o11y newsletter with a number of exciting launches and how-tos:

o11y.news/2025-06-16/

#observability

Introducing the Instrumentation Score Telemetry data is the foundation of our observability. We gather metrics, traces, and logs, aiming to cultivate a clear understanding of application health. Yet, a persistent question often arises: "Is our telemetry actually good?" How do we distingu...

Really exciting development, congrats to @jpkroehling.bsky.social and team!

blog.olly.garden/instrumentat...

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Check out this week's o11y newsletter with useful OpenTelemetry hands-on material, instrumentation guidance, database observability, and more:

o11y.news/2025-06-09/

#observability

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Check out this week's o11y newsletter with exciting resources from OpenSearch to OpenTelemetry:

o11y.news/2025-06-02/

#observability

Keeping the Stories Flowing at Warner Bros. Discovery With just nine months to launch Max and no room for downtime, Warner Bros. Discovery had to make every architectural decision count. This story follows how they built observability into their systems,...

Most excellent story by one of our customers, featuring things I’m working on (Amazon Managed Service for Prometheus):

thefrugalarchitect.com/architects/t...

🔍Most teams collect more than they can explain.

Telemetry pipelines often grow by accident, collecting everything until it’s unclear what’s useful.
OpenTelemetry Transformation Language (OTTL) cleans & reshapes data before reaching your backend—no code change.

Full guide: s.dash0.com/MasteringOTTL

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Check out this week's o11y newsletter with great Prometheus content, ecosystem research, and AWS updates:

o11y.news/2025-05-26/

#observability

Amazon Managed Service for Prometheus Query Insights and Control output

Amazon Managed Service for Prometheus Query Insights and Control configuration

Very glad to share that what we've been working on is now GA: yesterday, we launched Amazon Managed Service for Prometheus Query Insights and Control. These new governance features allow you to identify expensive PromQL queries and control their execution:

aws.amazon.com/about-aws/wh...

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Check out this week's o11y newsletter with excellent OpenTelemetry hands-on material and more:

o11y.news/2025-05-19/

#observability

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Check out this week's o11y newsletter, with great content from OpenTelemetry to AWS-managed open-source offerings:

o11y.news/2025-05-12/

#observability

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Check out this week's o11y newsletter with excellent guidance around instrumentation, and more:

o11y.news/2025-05-05/

#observability

Check out this week's o11y newsletter with great hands-on content and OpenTelemetry guidance:

o11y.news/2025-04-28/

#observability

Check out this week's o11y newsletter with great OpenTelemetry and Prometheus content as well as insights on observability costs and value-driven observability:

o11y.news/2025-04-21/

#observability

Check out this week's o11y newsletter with great content from OpenTelemetry tooling to KubeCon recap:

o11y.news/2025-04-14/

#observability

Check out this week's o11y newsletter with great contribs from OpenTelemetry to front-end observability:

o11y.news/2025-04-07/

#observability

Excellent! Unfortunately not yet available in Ireland. Any ETA?

OpenTelemetry sucks?

Now in the observability track at #KubeCon, with Daniel and Juraci: OpenTelemetry sucks … or maybe not? Looking forward to a deep dive based on real world challenges!