9 articles tagged with "reliability"
Node upgrades and cluster autoscaler scale-downs are supposed to be boring. Without a PodDisruptionBudget, Kubernetes is happy to evict every replica of your app at once to get there. Here's how PDBs actually work, where they quietly do nothing, and the mistakes that turn a routine drain into an incident.
Everyone name-drops the circuit breaker pattern in system design interviews. Far fewer have actually tuned one that survives contact with production. Here's what the tutorials skip: half-open state thrash, per-dependency breakers, and why a breaker with no fallback is just a fancier 500.
You've heard of Chaos Monkey. You do not have Netflix's infrastructure budget, on-call rotation, or risk appetite. Here's how to do real chaos engineering with a cron job, a `tc` command, and the nerve to run it in staging first.
A 503 page is not a resilience strategy. Learn how to design services that deliver reduced-but-real value when dependencies fail — fallback chains, stale caches, and the art of saying 'here's what I can still do.'
Error budgets promised to reduce on-call stress. For most teams they just renamed the anxiety. Here's how to implement burn-rate alerting and budget-driven pushback so the budget protects engineers instead of just measuring them.
Your service is drowning in traffic. Most systems respond by slowing everyone down until nothing works. Load shedding flips the script — deliberately drop low-priority requests so high-priority ones keep flying.
Your pod is running. Your app is 'fine'. Users are screaming. Sound familiar? Kubernetes liveness and readiness probes are the lie detectors your cluster desperately needs — here's how to use them before your on-call rotation becomes a horror movie.
Liveness, readiness, and startup probes are the unsung heroes of Kubernetes reliability — and also the source of some truly spectacular 3 AM incidents. Here's how to stop your cluster from killing healthy pods and serving traffic to broken ones.
Your server is like a surgeon mid-operation — you wouldn't yank the power cord. Learn how to implement graceful shutdown so Node.js finishes what it started before going offline.