Not Neo4J, so much as a relational database with user-defined schema. They actually build the relational semantics on top of cassandra so that it scales like a

Not Neo4J, so much as a relational database with user-defined schema. They actually build the relational semantics on top of cassandra so that it scales like a beast. And they open sourced it - https://github.com/palantir/atlasdb https://github.com/palantir/atlasdb Now take that, add a few more database technologies to do remote indexing and on the fly imports on federated databases, and some geospatial hotness, give it a swanky UI (now web based, not java), and that’s pretty much the platform, or at least was as of 2014 when I left. And the thing is, they’re remarkably open about all of that... it’s just that people like the boogeyman narrative more, so all the openness about their tech is completely overshadowed, but there’s a reason it and Pinterest were the two hottest internships for college CS students in 2012/2013.