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by pas 1059 days ago
thanks for the reply!

I'm aware that Kafka is low-level (and that there is kmq, which tries to implement a message queue on top of it https://github.com/softwaremill/kmq/ ), but the exactly-once semantics seems isomorphic to having the sender and the receiver doing a 2 phase commit using the log.

what are MQ's guarantees? how are they implemented?