Mongodb in production

Yes, and I would steer away from it. Different APIs. It has too many write errors. Do yourself a favor and use something proven and reliable. If you do go down the path of mongo, then self-host it. Its worse when your instance is handled by somebody else (steer away from mongolab).

We use it for 2 (critical) node apps. Happy user for about 3 years now. There's a lot of FUD going around, beware. We are in the 1k+ ops per second and have never seen a single write error. Just make sure it's the right choice for your data model and app. We use a mongodb+postgresql combo for analytical queries (Stripe uses a similar schema).

Localytics uses MongoDB in production (extensively), this talk (http://www.slideshare.net/andrew311/optimizing-mongodb-lesso...) is from 2011. But I sent a tweet to their CTO (@andrew311) and they are still using it ;)

Cheers.

using mongo for middleware/webapp caching layer, distributed statemachine workers coordination, basically anything can be thrown away without disastrous outcome. [UP] stable enough (never caused trouble, yet); [UP] enjoying its easy setup, backup, migration; [DN] still not planning to store anything that currently in MSSQL.

I use it as a data store for some backend node.js applications which serve a few critical APIs.