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macrozheng
macrozheng
Jun 9, 2025 · Backend Development

Mastering Redis Hotspot Keys: Detection, Risks, and Solutions

This article explains what Redis hotspot keys are, the performance and stability issues they cause, common causes, how to monitor and identify them, and practical mitigation strategies such as cluster scaling, key sharding, and multi‑level caching.

CachingMonitoringRedis
0 likes · 10 min read
Mastering Redis Hotspot Keys: Detection, Risks, and Solutions
Ctrip Technology
Ctrip Technology
Feb 25, 2021 · Backend Development

Design and Implementation of a Cache Access Component and Update Platform for High‑QPS Scenarios

This article describes a backend architecture for a high‑traffic e‑commerce project, detailing a cache access component and a cache update platform that use asynchronous messaging, hotspot‑key handling, versioned cache entries, and Redis to achieve low latency, high QPS support and strong data consistency.

CachingDistributed SystemsRedis
0 likes · 18 min read
Design and Implementation of a Cache Access Component and Update Platform for High‑QPS Scenarios