Published onJune 14, 2026Resilient Kafka Consumers with Spring Boot: Retries, DLTs, Idempotency, and RecoveryApache-KafkaSpring-KafkaSpring-BootRetriesDead-Letter-TopicIdempotencyObservabilityDesign a recoverable Spring Kafka consumer by classifying failures, bounding retries, preserving record context, making database effects idempotent, testing rebalances and poison records, and rehearsing DLT replay.