I've downloaded the Musicbrainz prepared dataset and tried to connect it to my server, but when I try to start the database up it fails stating "Component 'org.neo4j.kernel.impl.nioneo.xa.NeoStoreXaDataSource@629b10d1' was successfully initialized, but failed to start. Please see attached cause exception.: 'neostore.nodestore.db' does not contain a store version, please ensure that the original database was shut down in a clean state."
Since this isn't a database of mine, I don't know whether it was shut down properly or not. I'm running on Ubuntu 12.04 with Neo4j 2.1.4 and the allow_store_upgrade is set to true.