31 articles tagged with Observability.
When Prometheus runs out of memory, one label is almost always to blame. Six commands to find it, the relabel rules that drop it, and the scrape limits that stop it coming back.
Three kinds of drift, two tests that catch most of it, one Prometheus exporter, and the alert rules that do not page you every Monday morning.
SRE interviews test numbers and judgment. Fifteen questions on SLIs, error budgets, incident command, toil, capacity, on-call and postmortems, plus a systems-design scenario, each with the answer that scores and the one that loses the room.
Run a DaemonSet agent on every node and a small gateway Deployment behind it. Two Helm values files, the processor order that keeps the Collector alive, and the errors you will hit first.
Cutting a log bill is not a procurement exercise. It is four decisions about what you drop at the agent, what you index, how long you keep it, and what you never send at all.
Every log platform looks affordable at proof-of-concept volume and expensive at production volume. The pricing model, not the feature list, decides which one you can live with.
journald is the default log sink on every systemd distro, and most of it runs on defaults nobody chose. Here is how to actually control it.
AIOps applies machine learning to your operational telemetry to cut alert noise, catch anomalies early, and speed up incident response.
A practitioner's guide to tracing, evaluating, and debugging LLM agents in production with the tools that actually earn their keep.
Datadog, New Relic, Dynatrace, Grafana Cloud, Honeycomb, Elastic, and SigNoz compared on what they bill for, where each one wins, and which are cheap enough for a small team.
A practitioner's guide to tracing, cost tracking, and evaluating LLM apps in production with Langfuse, Helicone, Arize Phoenix, and LangSmith.
One tool is built to answer questions you didn't know you had. The other watches everything at once. Here is how they actually differ in practice.
