At 3:17 AM on a Tuesday in Q3 2024, our production Kotlin 2.0 microservice fleet hit a 92% memory utilization threshold across 140 nodes, traced to a silent coroutine leak in Ktor 2.2’s request pipeline that had been bleeding 12MB of heap per second for 72 hours. We lost $14k in SLO credits before we found the root cause. A Couple Million Lines of Haskell: Production Engineering at Mercury (78 p
My previous Python config validator was great for local development, but it hit a wall in minimal "distroless" containers and hardened environments where Python isn't much of an option. How a Simple Python Validator Prevents Config Outages MournfulCord Apr 28 #python #tutorial #devops #sre