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Date: Fri, 20 Nov 2009 14:44:03 -0800
Message-ID: <7c5131fa0911201444w430d279awccb0611c631e55cf@mail.gmail.com>
Subject: Re: Cassandra users survey
From: Ryan King <ryan@twitter.com>
To: cassandra-user@incubator.apache.org
Cc: cassandra-dev@incubator.apache.org
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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 <jbellis@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. =A0If 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. =A0Finally, 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). =A0We 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.)
>