Introducing HaloDB, a fast, embedded key-value storage engine written in Java

This post introduces HaloDB, detailing its architecture which includes append-only log files and an off-heap in-memory index. It highlights performance improvements, such as a 50% increase in write capacity and sub-millisecond 99th percentile read latency, demonstrated through production data benchmarks. The post also mentions the open-sourcing of HaloDB and encourages community contributions.