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		sokoloff on March 1, 2023 \| parent \| context \| favorite \| on: You cannot have exactly-once delivery (2015) Not exactly. If you have a business problem where you’re thinking “But I really, really need the effect of exactly-once; what can I do?”, GP’s post has the answer.

fsckboy on March 1, 2023 [–]

OP's idea should be

idempotence + at least once

idempotence isn't necessarily commutative.

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