Cross-Data-Center Apache Kafka® Replication: Decision Framework & Ops Guide

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This post details cross-data-center replication strategies for Apache Kafka using Kafka MirrorMaker. It outlines decision frameworks for replication patterns (active-passive, active-active), scope (within-region vs. across-regions), and recovery goals (RTO/RPO). It provides a step-by-step operational guide for setting up and configuring MirrorMaker 2, including best practices for addressing common issues like configuration errors, replication lag, memory constraints, and broker connectivity failures. Key features of MirrorMaker 2 for resilient multi-cluster architectures are also highlighted.