I created a Talend (Big Data Open Studio) Job that transfers data from SQL Server to Neo4j. The problem is that the current version of Talend generates Neo4j 1.9 databases and I want to use the latest version (2.1) but the upgrade is not (yet, at least) possible. I ended up by making it working but my steps look suspiciousI'll put here are all what I've done with the obtained logs when necessary:
- Run both Neo4j 2.0.4 and 2.1.2 instances and close them properly (Ctr + C --on Windows). - Deleted the generated graph.db folders. Then - Using Talend, transferred data to Neo4j 2.1.2 instance. Picture1 <https://lh6.googleusercontent.com/-G7NXmVFTxbE/U-s1N-avkmI/AAAAAAAAHfw/T7aYQ_8EZIo/s1600/Talend%2BJob.png> - Run Neo4j 2.1.2 Server. Upgrade failed throwing the following errer: Log1 <https://gist.github.com/MohamedNadjibMAMI/e52a4dea512c3a3f4715#file-upgrading-neo4j-db-from-1-9-talend-generated-to-2-1> - Copied (Talend-generated) graph.db from Neo4j 2.1.2 instance to Neo4j 2.0.4 instance and then run Neo4j 2.0.4 Server . The upgrade happened with no problems. - Returned the (upgraded) graph.db from Neo4j 2.0.4 instance to Neo4j 2.1.2 instance, then run the Neo4j 2.1.2 Server. The upgraded happened but the Server didn't start. No errors on the Log: Log2 <https://gist.github.com/MohamedNadjibMAMI/d89edd371fc42e4428c4>. - Rerun Neo4j 2.1.2 Server, the server didn't start: Log3 <https://gist.github.com/MohamedNadjibMAMI/8692dcf1e0fe79f87d36>. *- Deleted the two directories upgrade and upgrade_backup.* - Run Neo4j 2.1.2 and it worked. Same logs as Log2. My question is: was what I did by deleting those folders not wrong? My data looks OK (I checked using count(*)). I don't want to be surprised after one week that deleting those folders actually did affect my data. -- You received this message because you are subscribed to the Google Groups "Neo4j" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
