Tagged articles

Mutex Lock

4 articles · Page 1 of 1

Oct 7, 2026 · Backend Development

Mastering High-Concurrency Caching: Penetration, Breakdown, Avalanche & Hot Keys

This article explains four classic high-concurrency caching problems—cache penetration, breakdown, avalanche, and hot keys—their root causes, differences, and practical solutions including empty-value caching, Bloom filters, mutex locks, logical expiration, TTL jitter, multi-level caching, and cache-database consistency patterns.

Bloom filterCache AsideCaching

0 likes · 12 min read

Mastering High-Concurrency Caching: Penetration, Breakdown, Avalanche & Hot Keys

MaGe Linux Operations

Jun 19, 2024 · Backend Development

Preventing Redis Cache Stampede with Mutex Locks: A Practical Guide

This article explains the cache‑stampede problem when hot Redis keys expire under massive traffic, illustrates why simple caching fails, and presents a mutex‑lock solution with Go code to safely rebuild caches while protecting the database.

GoMutex LockRedis

0 likes · 8 min read

Preventing Redis Cache Stampede with Mutex Locks: A Practical Guide

Selected Java Interview Questions

Jul 27, 2023 · Backend Development

Preventing Cache Penetration with Mutex Locks and Logical Expiration in Redis (Java)

The article explains cache penetration, describes how to prevent it using a Redis‑based mutex lock and a logical expiration strategy, provides complete Java code examples for both approaches, compares their trade‑offs, and shows performance testing results under high concurrency.

CacheLogical ExpirationMutex Lock

0 likes · 10 min read

Preventing Cache Penetration with Mutex Locks and Logical Expiration in Redis (Java)

Full-Stack Internet Architecture

Dec 5, 2018 · Backend Development

Cache Breakdown (Cache Penetration) and Mitigation Strategies: Mutex Lock, Asynchronous Cache, and Bloom Filter

This article explains the concept of cache breakdown, illustrates why malicious requests can bypass caches and overload databases, and presents three practical mitigation techniques—using a Redis SETNX‑based mutex lock, asynchronous cache rebuilding, and a Bloom filter—along with their advantages, drawbacks, and performance testing results.

Bloom filterCacheMutex Lock

0 likes · 7 min read

Cache Breakdown (Cache Penetration) and Mitigation Strategies: Mutex Lock, Asynchronous Cache, and Bloom Filter