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redis
18 postsShopify Ditched Redis for MySQL in Inventory Reservations at Scale
Shopify moved its checkout inventory reservation system from Redis to MySQL, using SKIP LOCKED, composite keys and isolation tuning to scale through Black Friday peak traffic.
Use-after-free Bug Exposed in Redis Client Library
A memory corruption bug was found in a Redis client library. Learn about its cause and resolution.
Two Workers Both Held the 'Only One' Lock. The Clock Was Never Synced
A billing-reconciliation job ran twice due to clock drift. Solutions include auto-renewing locks and monitoring NTP synchronization.
CommitBrief — AI code reviews, right in your terminal
A provider-agnostic, local-first CLI that reviews your staged changes, a historic range, or a whole GitHub pull request. Zero telemetry, no server. Free and open source.
commitbrief.comBuilding a Disposable Email Service with Cloudflare Workers and Upstash Redis
Discover how I built VanishInbox, a disposable email service using Cloudflare and Redis.
Designing a Rate Limiter: Token Bucket vs Sliding Window
Rate limiter design is crucial for load balancing and fair use across API servers.
Atomic Redis Spend Cap for LLM APIs
The atomic Redis spend cap for LLM APIs offers an effective solution for controlling spending.
We Migrated Vercel's Database to DynamoDB
Vercel transitioned its database from Redis to DynamoDB for enhanced durability. Learn about the live migration process and strategies employed.
Reduce Redis Test Environment Time from 3 Hours to 10 Minutes: 18x Efficiency
Learn to create an isolated test environment using pytest and Docker to prevent cache pollution in Redis projects.