I developed a graph database under desktop 4.2.5 now populated with over 7 000 nodes and 15 000 relations.
I now have to change to a new computer in which I installed the latest Desktop 2.0.5 under Ubuntu 24.04.
In a new instance created that I had stopped I was able to load from a dump file of the database but It failed. I then put the instruction
bin/neo4j-admin database load “name database.dump” –from-path=”pathToDirectory” –overwrite-destination=true–verbose
but i got the error message
JAVA_HOME is not defined correctly. We cannot execute
I then tried to upgrade first on my old computer from 4.2.5 to 5.15 (since 5.15 seemed acceptable in 2.0.5. Looking at another post I then updated the neo4j.conf file by enabling the line
dbms.allow-upgrade=true
I could apparently load from the dump file 4.2.5 into the part 5.15 and the database apperard in the list under 5.15. However when opening the database I got the message
| Database 'neo4j' is unavailable. Run :sysinfo for more info |
|---|
and after running
:sysinfo
Call to dbms.queryJmx failed
Can anyone help me?
Many thanks in advance
Best regards
Vincent