I know I've been spamming the list a bit with new features for Virgil, but this one is actually really cool...
Enamored with what Riak provides as far as map/reduce via HTTP,
We implemented the same thing for Virgil/Cassandra. Simply write a script in ruby, then POST that script to Virgil. Virgil will kick off the Hadoop job against Cassandra using column families for input and output.
Right now it only supports Ruby, but there is nothing preventing us from adding support for other languages. We'll probably throw Groovy in there as well.
Check it out when you get a chance...
After we add the ability to push the job to an existing Hadoop cluster, we'll move on to PIG support and CRUD operations in the GUI.
Lead Architect, Health Market Science (http://healthmarketscience.com)