非常好的 Raft 算法可视化解释： http://thesecretlivesofdata.com/raft/ https://raft.github.io/ 网络隔离与 Learner https://fuckcloudnative.io/posts/etcd-server-learner/ https://youjiali1995.github.io/raft/etcd-raft-cluster-membership-change/