Share your experience using Apache Kafka in projects.

In projects, I used Apache Kafka to organize reliable and scalable message transmission between microservices. The main scenarios included log collection, real-time event processing, and integration with analytics systems.

The advantages of Kafka that I noted:

• High performance and throughput.
• Message delivery guarantees (at-least-once).
• Horizontal scalability.

For example, in one project, we set up producers that sent user action events to Kafka topics, and consumers processed these events to update statistics and trigger business logic. This allowed us to separate system components and increase fault tolerance.

I also dealt with configuring message retention parameters and load balancing among consumers.