Best Key-Value Databases for Java

Dragonfly serves as a seamless substitute for Redis, offering enhanced performance while reducing costs. It is specifically engineered to harness the capabilities of contemporary cloud infrastructure, catering to the data requirements of today’s applications, thereby liberating developers from the constraints posed by conventional in-memory data solutions. Legacy software cannot fully exploit the advantages of modern cloud technology. With its optimization for cloud environments, Dragonfly achieves an impressive 25 times more throughput and reduces snapshotting latency by 12 times compared to older in-memory data solutions like Redis, making it easier to provide the immediate responses that users demand. The traditional single-threaded architecture of Redis leads to high expenses when scaling workloads. In contrast, Dragonfly is significantly more efficient in both computation and memory usage, potentially reducing infrastructure expenses by up to 80%. Initially, Dragonfly scales vertically, only transitioning to clustering when absolutely necessary at a very high scale, which simplifies the operational framework and enhances system reliability. Consequently, developers can focus more on innovation rather than infrastructure management.

Effortlessly handle intricate models with ArcadeDB while ensuring no compromises are made. Say goodbye to the concept of Polyglot Persistence; there's no need to juggle multiple databases. With ArcadeDB's Multi-Model database, you can seamlessly store graphs, documents, key values, and time series data in one unified solution. As each model is inherently compatible with the database engine, you can avoid the delays caused by translation processes. Powered by advanced Alien Technology, ArcadeDB's engine can process millions of records every second. Notably, the speed of data traversal remains constant regardless of the database's size, whether it houses a handful of records or billions. ArcadeDB is versatile enough to function as an embedded database on a single server and can easily scale across multiple servers using Kubernetes. Its compact design allows it to operate on any platform while maintaining a minimal footprint. Your data's security is paramount; our robust, fully transactional engine guarantees durability for mission-critical production databases. Additionally, ArcadeDB employs a Raft Consensus Algorithm to ensure consistency and reliability across multiple servers, making it a top choice for data management. In an era where efficiency and reliability are crucial, ArcadeDB stands out as a comprehensive solution for diverse data storage needs.

Valkey is a high-performance key/value datastore that is open source and designed to handle diverse workloads, including caching and message queuing, while also functioning as a primary database. With backing from the Linux Foundation, its open source status is guaranteed indefinitely. Valkey can be deployed as a standalone service or within a clustered environment, featuring options for replication and ensuring high availability. It provides a wide array of data types, such as strings, numbers, hashes, lists, sets, sorted sets, bitmaps, hyperloglogs, among others. Users have the ability to manipulate data structures directly with a comprehensive suite of commands. Additionally, Valkey offers native extensibility through built-in Lua scripting support and allows the use of module plugins to introduce new commands and data types. The latest version, Valkey 8.1, brings numerous enhancements that improve performance by reducing latency, boosting throughput, and optimizing memory consumption. This makes Valkey an increasingly efficient choice for developers looking for a flexible and powerful data management solution.