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62 Datacenters 63 GeoReplication (CrossCluster Data Mirroring) Kafka is a distributed system consisting of servers and clients that communicate via  - Information from kafka.apache.org

Topics are partitioned meaning a topic is spread over a number of "buckets" located on different Kafka brokers This distributed placement of your data is  - Information from kafka.apache.org

Pluggable authorizer interface for Kafka brokers Startup sequence in brokers: Broker creates authorizer instance if configured in `authorizerclassname` - Information from kafka.apache.org