Tell about your experience with Apache Kafka and projects where you used this technology.

Apache Kafka is a distributed data streaming platform widely used for building messaging systems and real-time event processing. In my experience with Kafka, I participated in a project integrating microservices, where Kafka was used as a central message broker for transmitting events between services.

The main tasks included:

• Setting up topics and partitions to ensure scalability and fault tolerance.
• Implementing producers and consumers in Java using the Kafka Client API.
• Monitoring the cluster status with tools such as Kafka Manager and Prometheus.

Example of creating a producer in Java:

Properties props = new Properties();
props.put("bootstrap.servers", "localhost:9092");
props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
props.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");

KafkaProducer<String, String> producer = new KafkaProducer<>(props);
producer.send(new ProducerRecord<>("my-topic", "key1", "value1"));
producer.close();

This experience helped me understand the importance of proper Kafka parameter configuration to ensure high performance and system reliability.