Hi, Can i ask what is the default mechanism of metadata ingestion , either over Kafka or Rest ?

I would say during development, use Rest, that way you get instant feedback if your ingestion failed. In production use Kafka to decouple your metadata production from DataHub.

Could we get Kafka off the DataHub ? We have already Rest for doing the job. What is Kafka using for ?

@glamorous-kite-95510 Well, I think using Kafka enables you to recover from failure and you can even bootstrap from Kafka logs.