ReadySet is a caching layer that sits between applications and MySQL or Postgres databases to accelerate query performance and scale read throughput.
ReadySet addresses the challenge of database performance bottlenecks by transparently caching query results without requiring application rewrites or manual cache invalidation. It works by positioning itself as a wire-compatible proxy that intercepts SQL queries, caches the results of SELECT statements, and automatically keeps those cached results synchronized with the underlying database by consuming the database's replication stream. This approach transforms complex SQL reads into fast in-memory lookups while maintaining consistency as data changes.
Teams should consider ReadySet when they need to improve read performance and horizontal scalability without modifying their application code or managing cache invalidation logic. It works with existing ORMs and database clients since it maintains wire compatibility with Postgres and MySQL protocols. The tool suits projects where query performance is a bottleneck but rewriting to use a separate key-value store is impractical or undesirable. ReadySet Cloud is available as a managed service for teams preferring not to self-host.
The project maintains active development with regular commits and pull request activity. The codebase is written in Rust and includes a build pipeline tracked through continuous integration. The repository shows ongoing issue management with both open and closed issues being addressed. Community engagement is supported through a Slack channel and social media presence.
