Zab

• State Machine Replication: Viewstamped Replication Protocol, Zab (ZooKeeper Atomic Broadcast), and the Consensus-Scalability Continuum · 2021-07-27

  A deep exploration of state machine replication — how Viewstamped Replication and Zab enable fault-tolerant services through ordered command execution, and how the consensus-scalability continuum shapes modern distributed systems design.