Migrate third-party and self-managed Apache Kafka clusters to Amazon MSK Express brokers with Amazon MSK Replicator

This article explains how to migrate Apache Kafka clusters to Amazon MSK Express using MSK Replicator, a fully managed serverless service that simplifies migrations with bidirectional replication and enhanced offset synchronization.

• MSK Replicator enables low-downtime migration from external Kafka clusters to Amazon MSK Express
• Supports bidirectional replication of topics, configurations, and consumer group offsets
• Works with Kafka 2.8.1+ using SASL/SCRAM authentication with SSL encryption
• Allows flexible application migration order without data loss or complex rollback procedures
• Requires network connectivity, SASL/SCRAM setup, and IAM roles for secure operation
• Key monitoring metrics: MessageLag, ReplicationLatency, ConsumerGroupOffsetSyncFailure
• Applications ready to migrate when replication metrics stabilize at target thresholds
• Credentials stored securely in AWS Secrets Manager with KMS encryption

MSK Replicator simplifies Kafka migrations by eliminating complex infrastructure management and enabling independent producer/consumer migration with automatic offset synchronization.