Yes, Databend's metadata service (https://github.com/databendlabs/databend/tree/main/src/meta) also uses a Raft implementation written in Rust: https://github.com/databendlabs/openraft.

We've been running OpenRaft in production for several years now and have found it to be quite stable. It's designed as a generic, feature-complete Raft library that handles the complexities of distributed consensus well. If you're looking for a mature Rust Raft implementation, it's definitely worth considering.