Hi folks! FYI, GCHQ recently published Gaffer, a graph analytics framework that uses Accumulo as the storage layer.
It's up on GitHub under an ASLv2 license, though they aren't accepting contributions yet: https://github.com/GovernmentCommunicationsHeadquarters/Gaffer It also got a decent explanation write up: http://www.i-programmer.info/news/197-data-mining/9269-gchq-open-sources-gaffer.html -- Sean Busbey
