Every Prometheus outages post-mortem tells the same story in a slightly different costume. The server ran fine for months, then
Continue readingPrometheus Cardinality Explosions: Why Your Monitoring Server Ran Out of Memory
Every team says they care about reliability, but very few can answer the follow-up question: how reliable, exactly, and how
Continue readingSLOs and Error Budgets: The Math That Decides When to Ship and When to Stop
Every Prometheus failure I’ve seen in production started the same way: someone added a label. A user ID on a
At 02:14 on a Sunday, an alert fires: payment success rate dropped four percent. You run kubectl logs across a
Your service was up 99.95% of the time last month. Great number — until you realize that users filed complaints
Continue readingSLOs and Error Budgets in Practice: Building Reliability You Can Alert On
Every Go program ships with a garbage collector, and most run happily with the defaults. That changes the moment you
Continue readingGo GC Tuning with GOGC and GOMEMLIMIT: A Practical Guide for Containers
Every Prometheus failure I have debugged that was not a network problem eventually came down to the same thing: too
Every on-call rotation has a story about the alert that fires at 3 a.m. for something that isn’t wrong. CPU
Continue readingSLOs You Can Actually Alert On: Error Budgets and Burn Rates in Prometheus
Systems that need to be up and running around the clock can’t treat failure as an exception — it’s the
Continue readingBuilding Resilient and Fault-Tolerant Systems: Tips and Techniques