Neo.TransientError.Database.DatabaseUnavailable | Database 'graph.db' is unavailable

Question

I am trying to import the Hetionet into the Neo4j and I follow the guidiance below: https://github.com/hetio/hetionet/tree/master/hetnet/neo4j

While using the command

curl --insecure --location https://github.com/hetio/hetionet/raw/master/hetnet/neo4j/hetionet-v1.0.db.tar.bz2 | tar --extract --bzip2

The error “curl: (23) Failure writing output to destination” has been thrown.

Therefore I just downloaded the file directly and moved to the directory ".Neo4jDesktop\relate-data\dbmss\dbms-0d0d3324-d1a6-4d3e-b82c-0c4451a8c880\data\databases"

After I started the database, It showed that this database is currently offline. When I trying to do some operations to it, the error "Neo.TransientError.Database.DatabaseUnavailable" has been shown.

Some valuable informations in the log file debug.log are as below:

2022-07-19 23:11:53.896+0000 ERROR [c.n.d.DbmsReconciler] Encountered error when attempting to reconcile database graph.db (request by SystemGraph:1) to state 'online', database remains in state 'offline' org.neo4j.dbms.api.DatabaseManagementException: Unable to start database DatabaseId{7a8c6b65[graph.db]}
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.database.Database@3da82075' was successfully initialized, but failed to start. Please see the attached cause exception "Unknown store version 'v0.A.7'".

meistermeier · Accepted Answer · 2022-07-22 14:03:09Z

1

The version of the dump you are trying to import is pretty old. From the readme

The database has been migrated to the Neo4j 3.0.1 Community Edition.

If you use a current 4.4 version of the database, the only thing you can do is to cascade through multiple versions and upgrade the store. I am not yet sure if you really need each minor version to work properly. Maybe it's already enough to go from 3.0 to 3.5 and follow this guide https://neo4j.com/docs/upgrade-migration-guide/current/migration/migrate-to-4.0/migrate-single-instance/ Otherwise starting 3.1-3.5 with allow_upgrade=true on the stores is the only option I see. There are Docker images available at https://hub.docker.com/_/neo4j/ also for those older, unsupported versions.

Edit: You should be able to start/upgrade it with 3.3 and then again with 3.5 and then run a 4.4 neo4j-admin copy

edited Jul 22, 2022 at 14:03

answered Jul 22, 2022 at 12:43

meistermeier

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