Random Bulletin

Oct 8, 2026 · Operations

Scaling Service Restarts at 10M QPS: From Serial to Safe Parallel

At 10M QPS, serial restarts of 4,200 instances take 47 hours while naive parallel restarts cause cascading failures; this article details the evolution from graceful single-node shutdown and warm startup to batched parallel orchestration with health gates, restart-storm mitigation, stateful-service handling, and adaptive platform automation.