This is not only a configuration. Like in all messaging solutions you need to make sure that all involved applications ensure once and only once delivery from producer(s) over Kafka to consumer(s).
> Am 30.08.2019 um 22:00 schrieb Peter Groesbeck <peter.groesb...@gmail.com>: > > For a producer that emits messages to a single topic (i.e. no single > message is sent to multiple topics), will enabling idempotency but not > transactions provide exactly once guarantees for downstream consumers of > said topic? > > Ordering is not important I just want to make sure consumers only consumer > messages sent once.
