Deep Dive: 2026 Redis 8 Hash Slot Internals vs. Dragonfly 1.0 for Clustering
In 2026, Redis 8’s reworked hash slot implementation delivers 42% higher cluster throughput than Dragonfly 1.0 for 64-node workloads, but Dragonfly’s …
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War Story: We Migrated From Memcached 1.6 to Redis 7.2 and Cut Cache Misses by 60%
At 3:17 AM on a Tuesday in Q3 2024, our p99 API latency hit 4.8 seconds, cache miss rate spiked to 38%, and our on-call engineer was ready to quit. We…
Redis 9 vs. Dragonfly 1.20: Throughput and Memory Efficiency Benchmarks for Caching Layers
In our 72-hour stress test of 1 million concurrent cache connections, Dragonfly 1.20 delivered 40% higher throughput than Redis 9 while using 35% less…
I Rebuilt the Core of My Data Engine — Here's What Changed in v1.3.0
I Rebuilt the Core of My Data Engine — Here's What Changed in v1.3.0 What is Nexus Core? Nexus Core is a standalone Java application — a central data …
Syncing the Real Market: Consuming Brapi and Feeding Redis with Spring Boot
Hello everyone! Continuing the My Broker B3 series, today we'll talk about an essential component on the B3 side of our simulator: the B3 Market Sync …
I Audited My Own Open Source Library and Found 9 Security Bugs. Here's Every One.
Hey dev.to 👋 If you've read my previous post about layercache , you know it's a multi-layer caching library for Node.js — Memory → Redis → Disk behind…
How I Rebuilt a Three-Layer Cache System in Java — Redis, L1, and MongoDB Done Right
I've been working on Nexus , a backend infrastructure project, and recently hit a point where the data synchronization layer needed a serious rethink.…
Why Is Redis INCR a Bad Fit for a Public URL Shortener?
LeetDezine Redis INCR is one of those solutions that looks perfect the first time you see it. Atomic counter increments. Every call returns a unique i…
Redis-backed permissions for high-volume Laravel apps: v4.0.0-beta.1
I just shipped v4.0.0-beta.1 of laravel-permissions-redis , and I want to share both what's in it and the specific problem it exists to solve. The pro…
How We Cut API Response Time from 2.3s to 180ms Using Redis + Smart Caching
p95 latency dropped from 2.3 seconds to 180 milliseconds. Same hardware, same database, same traffic. The only thing that changed was how we cached — …
Why queues don’t feel “instant” in real backend systems?
When I first learned about queues and background workers, I imagined something like this: request comes in job goes into queue worker picks it up imme…
Caching Is Easy. Production Caching Is Not.
This post is part of the series The True Code of Production Systems . The first time you add caching to a system, it feels like a superpower. One afte…
Redis Caching Strategies for Video Content Platforms
A video platform that pulls content from seven European regions needs aggressive caching or it folds under its own weight. ViralVidVault curates viral…
I got tired of wiring the same caching stack every project, so I built LayerCache
Every Node.js service I've worked on hits the same caching wall. It always starts the same way. You add an in-memory cache. It's fast. Life is good. T…
ElastiCache Pricing Breakdown: Where the Money Actually Goes
ElastiCache looks straightforward on the bill. You pick a node type, maybe add a replica for high availability, and move on. Then the invoice arrives …
Hardening Distributed Systems: Retries, Circuit Breakers & Observability.
Building Resilient Distributed Systems: A Solo Engineer's Journey How I turned flaky upstream APIs into a predictable, observable, and operator-friend…
How We Made Next.js ISR Page Cache Efficient with Redis
Next.js ISR works great on a single pod. But the moment you scale to multiple replicas — whether on Kubernetes , ECS , Cloud Foundry , or any orchestr…