[–] aparsons 5y ago ↗ We achieved this at Hotmail 2 decades ago by trading latency for correctness.Publisher: do at least once delivery, but only up to the next k minutes.Each subscriber has a bitset of received IDs, filtering out redeliveries. Every 2*k minutes, bitset can be GC’d.
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[ 4.7 ms ] story [ 31.6 ms ] threadPublisher: do at least once delivery, but only up to the next k minutes.
Each subscriber has a bitset of received IDs, filtering out redeliveries. Every 2*k minutes, bitset can be GC’d.