Watch Mechanism

Wukong Talks Architecture

May 7, 2022 · Backend Development

Basic Introduction to Apache ZooKeeper: Architecture, Data Model, Sessions, ACLs, and Cluster Mechanisms

This article provides a comprehensive overview of Apache ZooKeeper, covering its ZAB protocol, data model hierarchy, node types, storage mechanisms, watch system, session lifecycle, ACL configurations, serialization with Jute, cluster roles, leader election, log management, and practical use cases such as distributed locks, ID generation, load balancing, and integration with frameworks like Dubbo and Kafka.

ACLDistributed CoordinationWatch Mechanism

0 likes · 46 min read

Architect

Nov 8, 2021 · Operations

Designing High Availability for Canal Using Zookeeper: Distributed Locks and Watch Mechanism

This article explains how to achieve high availability for Canal by designing a Zookeeper‑based distributed lock and watch mechanism, covering primary‑backup role election, failure detection, thundering‑herd mitigation, fair locking, node types, watcher events, and practical Zookeeper applications such as service registration and configuration management.

CanalDistributed LockHigh Availability

0 likes · 13 min read

Designing High Availability for Canal Using Zookeeper: Distributed Locks and Watch Mechanism

Full-Stack Internet Architecture

May 17, 2021 · Operations

Designing High Availability for Canal Using Zookeeper Distributed Locks

This article explains how to achieve high availability for Canal servers by using Zookeeper to implement a distributed lock, watch mechanism, and fair scheduling, while also addressing thundering‑herd problems and illustrating common Zookeeper applications such as service registry and configuration center.

CanalDistributed LockFair Lock

0 likes · 12 min read

Designing High Availability for Canal Using Zookeeper Distributed Locks