Database encourages thinking about those things with a state that is stored in it. Although this worked for decades, with the advancement in technology and the emergence of application development architectures like Microservices and Service-Oriented Architecture, it became difficult to manage distributed applications in databases. Apache Kafka allows developers to build real-time, event-driven, mission-critical applications that support high-performing data pipelines, data integrations, and streaming analytics. Now that’s where Kafka emerged. But before we get into its fundamentals and work, let’s take a look at its background.