I consulted on a project that was using MongoDB even though it was obvious from the concept that an RDBMS would be better, however I went in with an open mind and gave MongoDB a red hot crack. It straight up ignored indexes with no explainable reason why. We had a support contract and they just gave us the run around.

Where? I see the following

> I was excited about this vision. Too often, an engineer tries to write one huge TLA+ spec for the whole system. It's too complex and detailed, so it's not much easier to understand ...

To be fair, about a decade they did stop losing data, but they did play with everyone's data for about a decade first.

https://stackoverflow.com/questions/10560834/to-what-extent-...