how do you actually confirm a kafka message got delivered? send() returning instantly is messing with my head

always assumed if send() didn't throw an error the message was in the broker, done. then someone mentioned it's basically fire-and-forget unless you're handling the callback or have acks=all set, and now i don't really know what "delivered" means here anymore. do you always attach a callback? check offsets after? has this ever quietly bitten you, like a message just vanished and you only found out way later submitted by /u/Altruistic_Shift_335 [link] [comments]