In Webex, we are using Cassandra for store User Feed User Activity data,
it was nearly real time, to support web user interactive, current was in
early testing. We evaluated Voldemort, MemcacheDB, Dynomite.
I most want :
1. support build second index on values or columns.
2. support some kind of
At Astrails we are using Cassandra in a project for one of our
clients. The performance requirements
are such that would require database sharding from the beginning if we
were to use an SQL solution
We thing Cassandra's horizontal scaling allow us to more concentrate
on the application an less on
I'm about to release a twitter search engine built ontop of cassandra. If
you are interested in beta testing it let me know.
I would like to see cassandra support increment/decrement.
-Jake
On Fri, Nov 20, 2009 at 4:17 PM, Jonathan Ellis jbel...@gmail.com wrote:
Hi all,
I'd love to get a
Hi Jonathan,
Firstly, thanks for all your help on this list. Without lots of your
solutions / tips etc I probably wouldn't be using Cassandra.
I've built a real-time search engine based around all the links that appear
on twitter (http://www.mozzler.com/). Cassandra is my data store for all the
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
On Fri, Nov 20, 2009 at 10:17 PM, Jonathan Ellis jbel...@gmail.com wrote:
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.
My company runs a niche comparison shopping site where we take in all sorts
of raw product data from various sources (retailers, manufacturers,
distributors, etc...). We then have to take all that raw data and collapse
it down across the data sources (e.g. product FOO from source A matches
Hello!
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
Hi,
I'm using Cassandra 0.4.2 at my current client to persist URL graphs
for Spam detection.
The crawling and page classification is done in Hadoop/Bixo/Cascading,
which persists URL classification results into Cassandra.
The incoming production traffic is using Cassandra for the real-time
spam
At Ooyala, we're in the process of testing and productionizing
Cassandra to store and serve our near real-time video analytics data.
Ooyala provides a comprehensive platform for professional video
publishers and enterprise companies looking to build up their online
video presence, and
SimpleGeo is using Cassandra as the backend of our real-time location
infrastructure. We needed something that was distributed, could scale,
could handle lots of writes, etc.
We looked into all the usual suspects, but went with Cassandra because
it was written in Java (we have two guys who
We're looking at it to be part of a near real time Web analytics engine, which
sounds similar to Ooyala.
at the moment I'm pushing to get the thing open sourced if possible.
we're looking at combining Cassandra + Esper, but we are still in the very
early stages.
On Nov 21, 2009, at 8:17 AM,
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