Why you should never, ever, ever use MongoDB - joepie91's RamblingsMongoDB is evil. It... ... loses data (sources: 1, 2) ... in fact, for a long time, ignored errors by default and assumed every single write succeeded no matter what (which on 32-bits systems led to losing all data silently after some 3GB, due to MongoDB limitations) ... is slow, even at its advertised usecases, and claims to the contrary are completely lacking evidence (sources: 3, 4) ... forces
