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Build multi-Region resilient Apache Kafka applications with identical topic names using Amazon MSK and Amazon MSK Replicator
- Amazon MSK Replicator allows building multi-Region resilient Kafka applications for business continuity and reduced latency.
- It supports identical topic names for seamless replication, simplifying failover processes in active-passive setups.
- To enable cross-Region resilience, multi-VPC connectivity must be set up for the primary cluster and a replicator in the secondary Region.
- During failover, clients should be transitioned from the primary to the secondary cluster, with data deduplication managed on the consumer side.
- Deployment involves provisioning MSK clusters with Express brokers, configuring MSK Replicator, and monitoring replication metrics.
- The failback process includes syncing data from the secondary to the primary cluster using MSK Replicator and monitoring MessageLag for completeness.
- Key metrics like ReplicationLatency and ReplicatorThroughput help in monitoring data replication performance.
- Client failover strategies like pilot light deployment or hot standby are recommended for critical workloads.
- Setting up MSK Replicator, configuring clients for both primary and secondary clusters, and simulating failover and failback are essential steps.
- Ensuring no duplicates during failback, verifying message replication, and cleanup steps are crucial for maintaining data integrity.
- Overall, the solution enhances Kafka resilience through active-passive disaster recovery and seamless cross-Region replication with identical topic names.
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