kafka supports backpressure: DBRaven

Source: Technology·Target: Pattern

Summary

Kafka consumer groups implement backpressure via the consumer poll loop: pausing the poll loop stops consumption without dropping messages, providing durable backpressure to the producer.

Evidence

·backpressure implementation_notes: monitor Kafka consumer-group lag, pause() the consumer above a threshold and resume when lag drops (patterns/backpressure.yaml)
·kafka documents consumer lag accumulation when consumers cannot keep pace with producers (technologies/kafka.yaml bottlenecks)

Evidence grounding

Grounded, 2 supporting items

Kafka backpressure is applied downstream by pausing the consumer poll loop on lag.