3 ms·
what are the delivery guarantees? Is it at-most-once only?
by polskibus 5y ago
what are the delivery guarantees? Is it at-most-once only?
- holler 5y ago> Instead of complex QoS for message delivery, a Broker may provide message history. A Subscriber is responsible to handle overlaps (duplicates) when it wants "exactly-once" message processing across restarts. The Broker may allow for configuration on a per-topic basis. -------- Slightly confused, my impression is that it's At Least Once with the client responsible for dedupe, but it says "if you want exactly once", so I'm not sure if the client is supposed to make a second request for confirmation? https://wamp-proto.org/_static/gen/wamp_latest_ietf.html#feature-definition-15 https://wamp-proto.org/_static/gen/wamp_latest_ietf.html#fea...
- gumby 5y agoIt’s possible to have the broker retain the messages and replay for new subscribers. If yiu lose connection and reconnect its your responsibility to filter out the ones you’ve already heard.