Why TigerBeetle is the most interesting database in the world
TigerBeetle is a financial transactions database built from scratch with modern distributed systems principles. It uses debits and credits as first-class primitives instead of SQL, achieving massive performance gains by packing 8,190 transactions into a single query. The database is written in Zig, distributed by default with Viewstamped Replication consensus, and handles storage faults through Protocol-Aware Recovery. TigerBeetle's development leveraged Deterministic Simulation Testing (DST) via their VOPR cluster running on 1,000 CPU cores, enabling them to build a Jepsen-validated system in just 3.5 years. Their engineering methodology, called TigerStyle, emphasizes assertions, static memory allocation, zero dependencies, and thinking deeply about performance during the design phase.
