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Quantitative Finance · Glosario

¿Qué es At-most-once and at-least-once delivery?

También llamado: at-most-once delivery · at-least-once delivery

Definition 24.5 Research, Data and Risk Platforms · Capítulo 24 — Messaging and Event-Driven Architecture

Under at-most-once delivery a message may be lost but is never processed twice: the consumer commits the offset before processing. Under at-least-once delivery a message is never lost but may be processed more than once: the consumer commits after processing, and a crash in between repeats the uncommitted messages.

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