Valkey

"Valkey: The Open-Source Redis Successor — Caching, Data Structures, and High-Performance In-Memory Systems at Scale"
Valkey has quickly emerged as the open-source successor for teams that depend on Redis-style performance but need a modern, community-driven foundation for serious production systems. This book is written for experienced engineers, architects, SREs, and platform teams who already understand distributed applications and want a rigorous guide to designing, operating, and scaling in-memory systems with confidence.
Across the book, readers move from Valkey’s architectural foundations and version-aware compatibility to advanced data modeling, TTL strategy, native structures, and high-performance caching patterns. The coverage then deepens into atomic workflows, transactions, server-side logic, persistence, replication, Sentinel, and Cluster operation. By the end, readers will be able to make informed trade-offs around durability, consistency, memory efficiency, failover, shard-aware schema design, observability, and operational tuning under real production constraints.
Rather than offering a superficial feature tour, this book organizes Valkey around the decisions advanced practitioners actually face: when to keep deployments simple, when to shard, how to prevent cache pathologies, how to reason about failure modes, and how version changes affect architecture. It is ideal for readers comfortable with backend systems, networking, and production operations who want a technically precise, implementation-oriented reference.