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How data is handled after the gateway's transmission failed #3546

Answered by derekcollison
hufan-ola asked this question in Q&A
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In NATS core the messages will be lost if there is a loss in connectivity across a gateway.

If you do not want loss consider using JetStream which can survive network outages, self heals itself and provides at least once and exactly once (with caveats). NATS core provides at most once.

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