How does Kafka works? The Kafka system is run by different components and all the components performs their individual tasks which are then communicated using the Simple binary Application Programming Interface. The complete whole procedure of running Kafka needs different servers to operate and each server is called as the broker The messages in Kafka are needed to be categorized into separate clusters which are done by the Topics. For categorization of these messages, the messages are sent to the Topics by the producers. It directs each partition of the messages to separate Topics for categorization. Which are then scheduled by the consumers.