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Wukong Talks Architecture
Wukong Talks Architecture
Mar 23, 2022 · Backend Development

Understanding Zookeeper's ZAB Protocol: Leader Election, Data Synchronization, and Consistency

This article explains Zookeeper's ZAB (Zookeeper Atomic Broadcast) protocol, detailing node roles, the leader election process during startup and failure, the two‑phase commit data synchronization, ordering guarantees, and scenarios of leader crash and data loss, providing clear diagrams and code examples.

Atomic BroadcastConsensusLeader Election
0 likes · 10 min read
Understanding Zookeeper's ZAB Protocol: Leader Election, Data Synchronization, and Consistency
Architect's Tech Stack
Architect's Tech Stack
Mar 19, 2019 · Fundamentals

Understanding ZAB: The Zookeeper Atomic Broadcast Protocol

This article explains the ZAB protocol—Zookeeper's atomic broadcast and crash‑recovery mechanism—detailing its design, message‑broadcast process, leader election, transaction ordering with ZXID, and how it ensures data consistency and availability in distributed systems.

Atomic BroadcastConsensusZAB
0 likes · 8 min read
Understanding ZAB: The Zookeeper Atomic Broadcast Protocol