[richieartoul]

You have to do a bit more than that if you want exactly once end-to-end (I.E if Kafka itself can contain duplicates). One of my former colleagues did a good write up on how Husky does it: https://www.datadoghq.com/blog/engineering/husky-deep-dive/

[francoismassot]

Yeah, I was only talking about exactly once semantic between Kafka and Quickwit.