Java Tech Enthusiast

Jan 24, 2026 · Backend Development

How to Keep Database and Redis Cache Consistent Under High Concurrency

This article examines the common data‑consistency challenges when writing to both a database and a Redis cache, evaluates four write‑order strategies, and presents the most reliable approach—writing to the database first then deleting the cache—along with retry mechanisms using scheduled jobs, message queues, and binlog listeners.