JD Retail Technology

Nov 11, 2025 · Backend Development

JIMDB’s Big-Hot Key Solution: Optimizing Distributed Cache Performance

JIMDB, a high‑performance Redis‑based distributed cache, introduces the “Big‑Hot Key” concept to dynamically identify keys that strain CPU or bandwidth, and implements a multi‑layer active governance framework—including real‑time detection, server‑side caching, circuit‑breaker, and client‑side consistency—to dramatically reduce resource consumption and boost throughput.