Check out these projects which massively helped out these operations:
Twiiter: http://en.wikipedia.org/wiki/FlockDB https://github.com/twitter/flockdb
This is respected database that couild be used fpr trading but don’t count on it
This could be a secret weapon for Goldman Sachs:
I little birdie told me they moved to Ruby on Rails but I would asume that is the front but still with SecDB on the back end.
Where do you think high speed kdb came from? Uh. Morgan Stanley: http://en.wikipedia.org/wiki/K_%28programming_language%29
In essenvce Redis will not cut it where a homegrown version is need with graph and NOSQL with a query language is needed. Being C and cross platform helps.FACEBOOK ACCOUNT and TWITTER. Don't worry as I don't post stupid cat videos or what I eat!