>>And the last time I tried to load my multi-million-edge dataset into Neo4j through its documented API, I estimated that it would have taken several weeks to finish.
Thanks, I'll put that on my list of things to try, although I've spent more than enough time banging my head against graph DBs for today.
This isn't insurmountable, but I'm just going to gripe about it: I'm annoyed by the idea that I need to make a table of nodes and load it in first. Every graph DB tutorial seems to do this, because it looks like what you'd do if you were moving your relational data into a graph DB. But I have RDF-like data where nodes are just inconsequential string IDs.
Hm, this indicates that I should definitely be looking at Cayley, which directly supports loading RDF quads.
Use the Import tool, it can do a million writes a second. Here is how to import hacker news into Neo4j using it: https://maxdemarzi.com/2015/04/14/importing-the-hacker-news-...