Mirror Maker

• Kafka can only operate well in a single region
• It's common to have kafka cluster across the globe and replication between them
• Mirror Maker is an open source tool that ships with Kafka
• Netflix uses Flink (paid)
• Uber uses uReplicator (open)
• Comcast uses their own kafka connector source for this (open)
• Confluent uses their own kafkaconnector source (paid)

• Replication does not preserve the offsets!

Cluster replication designs