[aravindkr1]

One key difference is the cost difference between running Cosmos DB and Cassandra. We have a TCO paper (https://aka.ms/documentdb-tco-paper) that shows that for a 1M operations/second workload, Cosmos DB is significantly 3x-10x cheaper than other systems.

[brianwawok]

And white papers are full of it. Has random things like s Cassandra cluster needs 1 full time engineer per 100 nodes. Where do you come up with this stuff?

[throwanem]

In my experience of Cassandra (working on an application client, not managing it), one FTE per hundred nodes is extremely generous.

[bshanks]

Do you mean that you typically need more engineers, or less?

[throwanem]

The former. One FTE per dozen nodes is more in line with what I've seen in practice.