https://devops-monk.com/tags/consumer/Recent content in Consumer on Devops MonkHugoen-usMon, 04 May 2026 00:00:00 +0000https://devops-monk.com/tutorials/spring-kafka/kafka-consumer-basics/Mon, 04 May 2026 00:00:00 +0000https://devops-monk.com/tutorials/spring-kafka/kafka-consumer-basics/How @KafkaListener Works @KafkaListener is a Spring Kafka annotation that registers a method as a Kafka consumer. Under the hood, Spring Kafka creates a ConcurrentMessageListenerContainer — a managed thread pool that continuously polls the broker and dispatches records to your method. flowchart LR Broker["Kafka Broker"] subgraph Container["ConcurrentMessageListenerContainer"] T1["Poll Thread 1\n(Partition 0)"] T2["Poll Thread 2\n(Partition 1)"] T3["Poll Thread 3\n(Partition 2)"] end Method["@KafkaListener\nvoid onOrderPlaced(...)"] Broker -->|"fetch records"| T1 Broker -->|"fetch records"| T2 Broker -->|"