What was Kafka used for and in what scenarios?

Apache Kafka is a distributed data streaming platform used for building high-throughput, low-latency message exchange systems.

Main use cases of Kafka:

• Real-time data stream processing: for example, log collection and analysis, event monitoring.
• Microservices integration: message exchange between services with delivery guarantees.
• Building event-driven architectures: publishing and subscribing to events.
• Data buffering: temporary storage of messages for subsequent processing.

Kafka is well-suited for systems requiring scalability, fault tolerance, and high data transfer speeds.