For those looking to index data in Cassandra with Elastic Search, here is what we decided to do: http://brianoneill.blogspot.com/2012/11/big-data-quadfecta-cassandra-storm.html
-brian -- Brian ONeill Lead Architect, Health Market Science (http://healthmarketscience.com) mobile:215.588.6024 blog: http://brianoneill.blogspot.com/ twitter: @boneill42