Google, IBM, Hortonworks, and other companies have just decided to back Janus Graph, a scalable Graph DB. It is essentially a continuation of Titan DB (if you are familiar with Titan). http://janusgraph.org/
I wonder if it would make sense to create an Accumulo backend implementation for Janus, and a SPARQL extension. Such additions would largely make Janus equivalent to Rya (less cell level security). As Janus already supports Casandra and since Casandra and Accumulo are rather similar, I imagine it wouldn't be too hard to do. Also there already exists a SPARQL extension for Titan, we would simply need to update and extend it for the latest version of Janus. What are your thoughts?
