Cassandra at Bazaarvoice (September meetup of the Austin-Cassandra users group)
Channel: TheLastPickle
Date: 17/09/2013

From the Austin, TX Apache Cassandra users group:
http://www.meetup.com/Austin-Cassandra-Users/events/131802852/

Presentation slides:
http://www.slideshare.net/cassandraatx/bv-emodb

Overview:
Fahd Siddiqui from Bazaarvoice describes an internal datastore built on Apache Cassandra. 

Description:
Introducing Bazaarvoice datastore (EmoDB)

EmoDB is a RESTful HTTP server used by Bazaarvoice for storing JSON objects and for watching for changes to those events. It also supports a blob store, a queueing service, and a data bus to track events.

It is designed to span multiple data centers, using eventual consistency (AP) and multi-master conflict resolution. It relies on Apache Cassandra for persistence and cross-data center replication.