Valkey Official

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About This Group
Valkey is an open source (BSD) high-performance key⁄value datastore that supports a variety of workloads such as caching‚ message queues‚ and can act as a primary database. The project is backed by the Linux Foundation‚ ensuring it will remain open source forever.

# Core capabilities

- In-memory data structures˸ Well-known as a "data structure server"‚ with support for strings‚ hashes‚ lists‚ sets‚ sorted sets‚ streams‚ and more.
- Programmability˸ Server-side scripting with Lua and server-side stored procedures with Valkey Functions.
- Extensibility˸ A module API for building custom extensions to Valkey in C‚ C++‚ and Rust.
- Persistence˸ Keeps the dataset in memory for fast access‚ but can also persist all writes to permanent storage to survive reboots and system failures.
- Clustering˸ Horizontal scalability with hash-based sharding‚ scaling to millions of nodes with automatic re-partitioning when growing the cluster.
- High availability˸ Replication with automatic failover for both standalone and clustered deployments.

# Use cases

- Real-time data store˸ Valkey' versatile in-memory data structures enable building data infrastructure for real-time applications that require low latency and high-throughput.
- Caching & session storage˸ Valkey' speed makes it ideal for caching database queries‚ complex computations‚ API calls‚ and session state.
- Streaming & messaging˸ The stream data type enables high-rate data ingestion‚ messaging‚ event sourcing‚ and notifications.
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Listed on January 25, 2026 | Last updated January 25, 2026