Eventually the alert fires at 3 a.m.: your Prometheus is consuming more memory than the database it monitors, queries that
Continue readingPrometheus Cardinality: Why Your TSDB Is Drowning and How to Stop It
Every codebase has a logging moment of reckoning. It arrives when someone has to debug a production incident at 2
Continue readingStructured Logging in Go: A Practical slog Field Guide
Most teams don’t have an alerting problem; they have an alerting volume problem. The on-call rotation drowns in alerts that
Continue readingBurn-Rate Alerting on SLOs: Multiwindow Alerts in Prometheus That Don’t Flap
Your microservice takes eleven seconds to answer a request that used to take two hundred milliseconds. The on-call engineer opens
A request fails at 2 AM. The on-call engineer greps through logs looking for a trace ID, finds seventeen lines
Continue readingStructured Logging in Go With slog: Handlers, Sampling, and Dynamic Levels
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
Most developers treat the garbage collector as weather: it happens to them, and occasionally it ruins their day. But the
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
You open your tracing backend to debug a slow checkout request and find five disconnected traces instead of one. Five
Every Prometheus failure I’ve seen in production started the same way: someone added a label. A user ID on a