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dmurray
on Sept 3, 2024
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Notes on Distributed Systems for Young Bloods
It's impossible to have at least once delivery in an environment with an arbitrary level of network failure.
danenania
on Sept 3, 2024
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You can have at-least-once-or-fail though. Just send a message and require an ack. If the ack doesn’t come after a timeout, try n more times, then report an error, crash, or whatever.
feoren
on Sept 3, 2024
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Sure you can: keep sending one message per second until you receive a response from the recipient saying "OKAY I HEARD YOU NOW SHUT UP!"
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