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Garnet es el servidor de caché abierto por Microsoft Research que habla el protocolo de Redis pero está escrito en .NET 8 con un núcleo de almacenamiento orientado a hardware moderno. Tras casi dos años en público, muestra números interesantes y una arquitectura que merece mirarse con calma, aunque el ecosistema Redis siga siendo más maduro.
Redis moved to dual SSPL/RSAL licensing in March 2024, no longer meeting the OSI open-source definition. Valkey emerged as a BSD 3-Clause fork backed by AWS, Google Cloud, Oracle, and the Linux Foundation, fully protocol-compatible with Redis 7.2. Migrating is almost always trivial: swap the binary or the Docker image.
Redis alone isn't a caching strategy, just an ingredient: picking the right pattern among cache-aside, read-through, write-through, and write-behind, sizing TTL to how fast data actually changes, invalidating explicitly for critical data, and mitigating thundering herd with jitter and locking are the decisions that actually matter in production.
