Trinity is a graph database and computation platform over distributed memory cloud. As a database, it provides features such as highly concurrent query processing, transaction, consistency control. As a computation platform, it provides synchronous and asynchronous batch-mode computations on large scale graphs. Trinity can be deployed on one machine or hundreds of machines.
The project page describing Trinity goals/features looks very interesting. But there’s not sign of the project status.
Original title and link: Trinity: A Graph Database from Microsoft Research (NoSQL databases © myNoSQL)