Neo4j 3.0 - Unable to fetch data from older version (2.3.2) database -


my older database version 2.3.2. there created database , inserted nodes , relationships.

now, upgraded 3.0 version , restarted neo4j server. changed the
dbms.active_directory = xyz_path

but unable fetch data db now.

is there more configurations or specific changes need access database.

edited error while using migrating config files:

[root@enteras02 tools]# java -jar config-migrator.jar path/to/neo4j2.3 path/to/neo4j3.0 

exception in thread "main" java.lang.unsupportedclassversionerror: org/neo4j/config/configmigrator : unsupported major.minor version 52.0 @ java.lang.classloader.defineclass1(native method) @ java.lang.classloader.defineclass(classloader.java:803) @ java.security.secureclassloader.defineclass(secureclassloader.java:142) @ java.net.urlclassloader.defineclass(urlclassloader.java:449) @ java.net.urlclassloader.access$100(urlclassloader.java:71) @ java.net.urlclassloader$1.run(urlclassloader.java:361) @ java.net.urlclassloader$1.run(urlclassloader.java:355) @ java.security.accesscontroller.doprivileged(native method) @ java.net.urlclassloader.findclass(urlclassloader.java:354) @ java.lang.classloader.loadclass(classloader.java:425) @ sun.misc.launcher$appclassloader.loadclass(launcher.java:308) @ java.lang.classloader.loadclass(classloader.java:358) @ sun.launcher.launcherhelper.checkandloadmain(launcherhelper.java:482)

the value of dbms.active_database (not dbms.active_directory, not documented) supposed name of database directory (not path) under $neo4j_home/data/databases/ directory. example: "my_old_graph.db".

so, move old database under $neo4j_home/data/databases/ directory, , set dbms.active_database name.

in addition, @christophewillemsen said, have set dbms.allow_format_migration=true tell neo4j upgrade new major version.


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