Queues 101 — At‑Least‑Once (and Why “Exactly‑Once” Is a Myth)
Design for duplicates and reordering. Use idempotency, an inbox/outbox, and per‑key ordering to get effectively‑once processing in real systems.
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Design for duplicates and reordering. Use idempotency, an inbox/outbox, and per‑key ordering to get effectively‑once processing in real systems.