OpenRaft (databendlabs/openraft) is a production-grade Raft consensus library written in Rust, not a standalone application. It provides the replicated-log, leader-election, membership-change, and snapshot-streaming machinery that database teams embed in their own systems; known consumers include Databend, CnosDB, Walrus, RocketMQ-rust, and Hiqlite. The repository is structured as a workspace: the core `openraft` crate, a `legacy` crate for the deprecated v1 network API, runtime adapter crates (`rt`, `rt-tokio`, `rt-monoio`, `rt-compio`), example KV-store applications (HTTP/gRPC/RocksDB/WAL/OpenDAL backends), a Jepsen fault-injection suite in Clojure, and a deterministic-simulation test harness (`tests-turmoil`) that checks formal Raft invariants (election safety, log matching, leader completeness, state machine safety, monotonicity) against seeded network-failure scenarios. The codebase is at version 0.10.0-alpha.34: the public API is still churning, but the architecture is mature and unusually well tested.