Kafka's Delivery Guarantees (Offset)
This technical guide explains how *Kafka offsets* function as digital bookmarks to monitor progress within a message partition. The text outlines three primary *delivery guarantees**, beginning with **at-most-once* processing, which risks *data loss* because it records progress before a task is finished. Conversely, *at-least-once* delivery ensures no information is lost by committing only after processing, though this may cause *duplicate messages* if a system failure occurs. To resolve such redundancies, the author suggests implementing *idempotent operations* or using *exactly-once* transactions for critical financial data. Ultimately, the documentation recommends a strategy of *manual commits* paired with unique identifiers to maintain high *data integrity* and system reliability.
#kafka #apachekafka #offset #microservices #microservicesarchitecture #agenticai #ai #idempotent