Asked about Orchestration, streaming and lineage
How do you handle late-arriving data?
An answer that works
Decide explicitly how late an event may be and still be included, using a watermark, and define what happens to events after that. Assuming ordered arrival produces subtly wrong aggregates.
Reading an answer is not being able to give one. The section that teaches this is Orchestration, streaming and lineage, 4 hours of Data pipelines.
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