Repair corrupted neo4j database (2.3.2 community)

Question

My neo4j-2.3.2-community database ran out of disk space (at 80G). I did a clean shutdown of it, then added more disk, and tried to start it back up, only to get cryptic err

Answer 1

This looks like the transaction logs have only been partially written. If that's true the datastore itself is unlikely to be corrupt.

WARNING: before doing any manual change in the data/graph.db folder be sure to have a backup copy in place.

Before proceeding, read the above paragraph. Backup taken? If yes, try to remove the transaction log files in data/graph.db by rm neostore.transaction.db.*. Try to start Neo4j. If it still fails to start, paste a snippet of data/graph.db/messages.log containing the latest startup sequence - this should give more insight.