Great, so I'm fine with deleting them. Many thanks Chris.
On Wednesday, August 13, 2014 12:49:20 PM UTC+2, Chris Vest wrote: > > There’s currently no direct upgrade from 1.9 to 2.1, so you have to first > upgrade the database with 2.0, and then again with 2.1. You might have to > remove any `upgrade` and `upgrade_backup` directories in between these last > two steps. I have both installed and just move the `graph.db` folder > between them. > > In 2.1.2 there is a bug where the logging sub-system is shut down after an > upgrade, so that’s why your log2 looks like it does. Giving the server a > clean restart after the upgrade should bring the logging back, though. > > Once the upgrade has completed, deleting the `upgrade` and > `upgrade_backup` folders is fine. The backup directory contains your data > as they were before the upgrade, just in case something goes wrong during > the upgrade, so it’s good to keep around until you’ve verified that the > upgrade went well. > > -- > Chris Vest > System Engineer, Neo Technology > [ skype: mr.chrisvest, twitter: chvest ] > > > On 13 Aug 2014, at 12:02, Moop <[email protected] <javascript:>> > wrote: > > 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] <javascript:>. > For more options, visit https://groups.google.com/d/optout. > > > -- 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.
