Hi Amran, in the general case, the merging of two streams is not deterministic.
Cheers, Till On Thu, Nov 7, 2019 at 3:24 AM amran dean <adfs54545...@gmail.com> wrote: > > The Flink Kafka consumer's watermark extractor claims:. > > "The watermark extractor will run per Kafka partition, watermarks will be > merged across partitions in the same way as in the Flink runtime, when > streams are merged." > > Suppose we have simple situation where two streams merge into one. Is the > ordering of the merged stream deterministic upon retries? > > My pipeline relies on this property to guarantee determinism due to how > watermarks are emitted. > > Thanks for any input >