[jchrisa]

Viber, one of the largest over the top messaging apps, recently shared their conversion from Mongo to Couchbase. They ended up requiring less than half of the original servers, and better performance.

If you want to see a video of their engineer telling the story, it's available here: http://www.couchbase.com/presentations/couchbase-tlv-2014-co...

[prottmann]

Like always: "Use the right tool for the job". I did not think that this was MongoDB(10gen)s fault, they (viber) choose the wrong database type for their needs.

[pessimizer]

That's really easy to say, so it's important to show your specific reasoning.

[krenoten]

Usually people who get burned by hypedb think twice before making the same mistake again.