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hashicorp/raft vs Alopex Chirps
hashicorp/raft's replicated log, FSM and pluggable storage, compared with Alopex Chirps.
Updated: Oct 13, 2026
What hashicorp/raft is
hashicorp/raft is a Go library that manages a replicated log and, combined with an FSM (finite state machine), builds replicated state machines. Consul, Nomad and Vault use it.
How it works
- FSM: the application implements the FSM and applies committed entries in order. The FSM also handles snapshots and restore.
- Storage: the log and metadata stores (LogStore and StableStore) are pluggable. The README recommends raft-mdb, which uses MDBStore, and also lists raft-boltdb, which uses Bbolt.
- Transport: communication between nodes is a pluggable transport.
Main features
- Leader election, log replication, snapshots, membership changes.
- Embeds directly in Go applications.
Limits
It is a Go library. It has no node discovery or membership monitoring, and is combined with another mechanism such as gossip, as Consul does.
How it differs from Alopex Chirps
Both are Raft libraries embedded in the application, and the application owns the state machine.
hashicorp/raft is Go and focuses on consensus. Alopex Chirps is Rust and brings Raft together with joining from seeds, SWIM-style gossip membership, and messaging over QUIC with mutual TLS. It also runs multiple Raft groups, each on its own storage.
We recommend Alopex Chirps for Rust applications that want Raft, membership and communication in one package. Try it from the quickstart on GitHub.