At twitter we're working on using Cassandra to replace our currents storage for all tweets. We have a cluster in production that's being populated outside the the user-critical path (ie, the cassandra writing is async).
Additionally, we're testing and evaluating for basically everything else in our stack. We evaluated a lot of things: a custom mysql impl, voldemort, hbase, mongodb, memcachdb, hypertable, and others. -ryan On Fri, Nov 20, 2009 at 1:17 PM, Jonathan Ellis <jbel...@gmail.com> wrote: > Hi all, > > I'd love to get a better feel for who is using Cassandra and what kind > of applications it is seeing. If you are using Cassandra, could you > share what you're using it for and what stage you are at with it > (evaluation / testing / production)? Also, what alternatives you > evaluated/are evaluating would be useful. Finally, feel free to throw > in "I'd love to use Cassandra if only it did X" wishes. :) > > I can start: Rackspace is using Cassandra for stats collection > (testing, almost production) and as a backend for the Mail & Apps > division (early testing). We evaluated HBase, Hypertable, dynomite, > and Voldemort as well. > > Thanks, > > -Jonathan > > (If you're in stealth mode or don't want to say anything in public, > feel free to reply to me privately and I will keep it off the record.) >