What services have you designed through Kafka and what is their specific feature?

Designed services for real-time event stream processing using Kafka, such as logging and monitoring systems, as well as messaging services between microservices.

Specifics of working with Kafka:

• Asynchronous processing: messages are published and consumed independently, increasing scalability.
• Delivery guarantees: Kafka ensures message durability and the ability to re-read messages.
• Sharding and replication: data is divided into partitions for parallel processing and duplicated for fault tolerance.
• High performance: Kafka is optimized for processing large data streams with low latency.

When designing, it is important to consider message order in partitions, duplicate handling, and retry strategies.