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From Ray Slakinski <>
Subject Re: Cassandra users survey
Date Fri, 20 Nov 2009 23:42:17 GMT

Mahalo is currently testing Cassandra as an alternative data store to MySQL
for certain pieces of our data. We are close to production which would see a
move of 15 million rows from one table into a cluster which we hope will
increase speed and allow us to scale the data as it grows more easily than
on MySQL.

We also have a short url product and would like to move its stats collecting
data to Cassandra as well, to do this we would love an incr/decr feature
like memcache/memcachedb has. I'm not sure if this is outside of the scope
of Cassandra or not, but I did notice on this list it was requested before
but thought I'd reitterate again in hopes it gets into the feature list.

Ray Slakinski

On Fri, Nov 20, 2009 at 4:17 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.  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.)

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