KIP-1277 — Support Delayed Message in Kafka

Discussion BrokerProducer

Introduces native delayed message delivery to Kafka, allowing producers to set a future delivery timestamp on records so they are held by the broker and only made visible to consumers at the specified time. Kafka has no built-in scheduling mechanism; teams implementing delayed retry logic for share groups (or any queue workload) must build external scheduling infrastructure or poll-and-republish loops.

Protocol Impact

Fetch

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