Are there any Serious Graph databases not written in Java? [closed]

Question

I am looking for a serious graph database system which is not written in Java.

I am not interested in RDF databases, since I expect to be able to store more complex graphs (actually hypergraphs) From within the Java camp, OrientDB is a good example of what I am looking for.

Disclaimer: This is not flamebait. I have nothing against Java, I just want to have an idea of what is out there, implemented in other languages, perhaps as an extension to other dbms, such as MySQL, MongoDb or CouchDb.

Answer 1

Depending on what your requirement is, you could try out Phoebus. It isn't exactly a GraphDB but more of a distributed graph processing framework.

Answer 2

I am now testing the OQGRaph engine of MySQL. It looks promising but doesn't seem to support multi-graphs.