Mike Chen's Internet Architecture

Jan 18, 2026 · Big Data

Mastering Kafka High Availability: Replication, Leader‑Follower, ISR, and Ack Strategies

This article explains Kafka's high‑availability architecture, covering multi‑replica replication, leader‑follower election and failover, the role of In‑Sync Replicas, and producer acknowledgment settings with min.insync.replicas for reliable, zero‑data‑loss streaming.