Earlier quoted context omitted.
etcd has had numerous liveness and safety bugs, with one happening as recently as December of 2025. Would you consider that a correct implementation? You may be interested in knowing that the largest managed Kubernetes service in the world (AWS EKS) ripped out etcd for in favor of their homegrown consensus service for large scale EKS clusters: https://aws.amazon.com/blogs/containers/under-the-hood-amazo...
I'd like to know what you base your statement on that the Raft implementations in etcd or CockroachDB are incorrect. Your original paper does not mention those implementations, so where does that claim come from?
Having run a fleet of 100s of etcd clusters for 10000s of rps, and the fact that upstream runs tests similar to antithesis and recently partnered with antithesis [0], and jepsen has tested it long ago as well [1]. Etcd's raft algorithm is fine. Someone even did a TLA+ proof on it in the last couple years[2]. Yes there was a correctness issue a few years ago but otherwise the person you're replying to doesn't know what they're talking about. Also those bugs have nothing to do with the raft implementation, but instead the state machine implemented on top.
0: https://etcd.io/blog/2025/autonomus_testing_with_antithesis/