Apache Kafka provides a data streaming pipeline across the cluster through its message service. It ensures a high degree of fault tolerance and message reliability through its architecture, and it also guarantees to maintain message ordering from a producer. A record in Kafka is a (key-value) pair along with a timestamp and it usually contains a topic name. A topic is a category of records on which the communication takes place.
Kafka supports producer-consumer-based messaging, which means producers can produce messages that can be sent to consumers. It maintains a queue of messages, where there is also an offset that represents its position or index. Kafka can be deployed on a multi-node cluster, as shown in the following diagram, where two producers and three consumers have been used as an example:
Producers produce multiple topics through producer...
