Distributed Tracing in Go with OpenTelemetry: Spans, Context, and Sampling That Works
Your microservice takes eleven seconds to answer a request that used to take two hundred milliseconds. The on-call engineer opens
Tag: Observability
Structured Logging in Go With slog: Handlers, Sampling, and Dynamic Levels
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
Prometheus Cardinality Explosions: Why Your Monitoring Server Ran Out of Memory
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
Inside the .NET Garbage Collector: Generations, the Card Table, and Tuning That Actually Works
Most developers treat the garbage collector as weather: it happens to them, and occasionally it ruins their day. But the
SLOs and Error Budgets: The Math That Decides When to Ship and When to Stop
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
Trace Context Propagation: Why Your Distributed Traces Break and How to Fix Every Hop
You open your tracing backend to debug a slow checkout request and find five disconnected traces instead of one. Five
Prometheus Metric Cardinality: How Explosions Happen and the Five Controls That Stop Them
Every Prometheus failure I’ve seen in production started the same way: someone added a label. A user ID on a
Structured Logging in Go: slog, OpenTelemetry, and the Fields That Matter in Production
At 02:14 on a Sunday, an alert fires: payment success rate dropped four percent. You run kubectl logs across a
SLOs and Error Budgets in Practice: Building Reliability You Can Alert On
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
Go GC Tuning with GOGC and GOMEMLIMIT: A Practical Guide for Containers
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