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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 see

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 9y ago
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)
aravindkr1 9y ago
One key difference is the cost difference between running Cosmos DB and Cassandra. We have a TCO paper (https://aka.ms/documentdb-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 9y ago
  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 9y ago
    In my experience of Cassandra (working on an application client, not managing it), one FTE per hundred nodes is extremely generous.
    - bshanks 9y ago
      Do you mean that you typically need more engineers, or less?
      - throwanem 9y ago
        The former. One FTE per dozen nodes is more in line with what I've seen in practice.