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aliostad | karma 322 | avg karma 3.25 · 2017-05-10 17:09:33+00:00

We just did a benchmarking for a PoC on DocumentDB side-by-side Cassandra. It does the job, I have not yet seen anything revolutionary. Cassandra benchmarks seemed better.

rattray | karma 6323 | avg karma 3.04 · 2017-05-10 17:45:02+00:00

Given that this makes bolder claims that Cassandra, near-parity is pretty impressive, no?

(I don't know a ton about either technology, please correct me if I'm wrong)

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aravindkr1 | karma 10 | avg karma 2.5 · 2017-05-10 20:21:50+00:00

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 | karma 11149 | avg karma 2.13 · 2017-05-11 11:56:29+00:00

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 | karma 18321 | avg karma 2.56 · 2017-05-11 13:36:36+00:00

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

bshanks | karma 4168 | avg karma 9.74 · 2017-05-11 18:11:04+00:00

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

throwanem | karma 18321 | avg karma 2.56 · 2017-05-11 18:24:07+00:00

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