I have a large dataset (about 1B nodes and a few billion relationships) that I am trying to import into Neo4j. I am using the Neo4j import tool. The nodes finished importing
Have a look at the batch importer I wrote for a stress test:
https://github.com/graphaware/neo4j-stress-test
I used both neo4j index and in memory map between two commit. It is really fast and works for both version of neo4j.
Ignore the tests and get the batch importer.