Are there are production quality nosql stores that I can use on a production system. I have looked at cassandra, tokyodb, couchdb etc but none of them seem to be ready for deployments on production like environments. I am talking thousands of requests per minute and lots of reads/writes/updates. My only concern is speed and service times. Does anybody know of production systems that use nosql stores effectively ? Does anybody know of a nosql store that is backed by a big enterprise like Google/Yahoo/ IBM ?
Cassandra handles thousands of requests (including write-mostly workloads) per second, per machine, and its scaling-by-adding-machines has been there since day 1.
Here is a thread about Cassandra use in production and in-production-soon at dozens of companies: http://n2.nabble.com/Cassandra-users-survey-td4040068.html#a4040068
We're also adding more docs all the time, like http://wiki.apache.org/cassandra/Operations.