Architecture Pony

Nov 6, 2026 · Backend Development

Sentinel Internals: Sliding Window, Leaky Bucket & Circuit Breaker State Machine

This article deep-dives into Sentinel's core mechanisms including sliding window statistics, three rate-limiting algorithms, circuit breaker state machine, Slot chain execution flow, hotspot parameter limiting, rule persistence modes, Gateway/Feign integration, threshold calculation, and common pitfalls with troubleshooting steps.