Return-Path: Delivered-To: apmail-incubator-cassandra-user-archive@minotaur.apache.org Received: (qmail 47946 invoked from network); 21 Nov 2009 01:39:28 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 21 Nov 2009 01:39:28 -0000 Received: (qmail 41624 invoked by uid 500); 21 Nov 2009 01:39:28 -0000 Delivered-To: apmail-incubator-cassandra-user-archive@incubator.apache.org Received: (qmail 41596 invoked by uid 500); 21 Nov 2009 01:39:28 -0000 Mailing-List: contact cassandra-user-help@incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: cassandra-user@incubator.apache.org Delivered-To: mailing list cassandra-user@incubator.apache.org Received: (qmail 41587 invoked by uid 99); 21 Nov 2009 01:39:28 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 21 Nov 2009 01:39:28 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=10.0 tests=SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of dan.dispaltro@gmail.com designates 209.85.160.41 as permitted sender) Received: from [209.85.160.41] (HELO mail-pw0-f41.google.com) (209.85.160.41) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 21 Nov 2009 01:39:20 +0000 Received: by pwj1 with SMTP id 1so2590030pwj.20 for ; Fri, 20 Nov 2009 17:38:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :from:date:message-id:subject:to:content-type :content-transfer-encoding; bh=0i2yzWVpKco3epiqps9XJsYv3KfY3zJZXcvpEntumG8=; b=JsD3n1YzY+deLvcihWfuaYFv8HSYgnoGZL4BgljDEMj1VJNSN8G3kcU7BEeqjDHBZJ hUvWVHkjGnAgvdPhIpLwoGcj0KVJlWAFv5MHWWmKB1D+z9woYgv2VTt9cD0rHwBmA0uc pWfr1V2JWsTJr5IQovIC+njsb9iShhFA9h5y8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type:content-transfer-encoding; b=C6kdhs6ao4NRTaSj/YdVrCo5PjjiTWEn70wd3tuQgI+CE920EKm0oQ2x5hItfaFh/r 1W5Amt1I88Acvvz4OFC/PCd0VfVjHDrcgRLN/gG5VIWacKAvuUuF/gq0v7vl3mLlP/wm G1qO+cL2wSh6HCLLY9Qt+m7ehnP/BSRZakM3s= MIME-Version: 1.0 Received: by 10.114.116.12 with SMTP id o12mr2686218wac.83.1258767539059; Fri, 20 Nov 2009 17:38:59 -0800 (PST) In-Reply-To: References: From: Dan Di Spaltro Date: Fri, 20 Nov 2009 17:38:39 -0800 Message-ID: Subject: Re: Cassandra users survey To: cassandra-user@incubator.apache.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Virus-Checked: Checked by ClamAV on apache.org At Cloudkick we are using Cassandra to store monitoring statistics and running analytics over the data. I would love to share some ideas about how we set up our data-model, if anyone is interested. This isn't the right thread to do it in, but I think it would be useful to show how we store billions of points of data in Cassandra (and maybe get some feedback). Wishlist -remove_slice_range -auto loadbalancing -inc/dev On Fri, Nov 20, 2009 at 1:17 PM, Jonathan Ellis 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.) > --=20 Dan Di Spaltro