Liangxu Linux

Dec 29, 2020 · Backend Development

Understanding ZooKeeper: Architecture, Data Model, Sessions, and Leader Election

ZooKeeper is an open‑source distributed coordination service that provides primitives for synchronization, configuration management, and naming, featuring a hierarchical data model of znodes, session handling, one‑time watches, strong consistency guarantees, leader election via Zab protocol, and detailed roles of leader, follower, and observer.