How to restore "copy-paste" backup to new neo4j instance?

I'm a quite newbie to neo4j so my problem is definetely came from my unexperience. I had a neo4j instance on a PC, then I had to migrate to another PC, so I backuped my data just by copying whole catalog of old existing "data path".

enter image description here enter image description here Now I know that I should had used special backup method, but I no longer have my old neo4j local inctance. I searchen the Internet and this forum, but had not find the answer about is it possible and how to restore my databases to fresh installed neo4j instance.

In my "copy-paste" backup I have neo4j DB's of versions 3.5.14, 4.0.0, 4.1.0, 4.2.0.

I'v tried to create a new project and a DB of the same version same to my old one and then replace folders from "data" folder that are:

  • ..\database-abcf6a00-a407-40e3-99bb-e7e2c041dd1d\installation-4.0.0\data\databases
  • ..\database-abcf6a00-a407-40e3-99bb-e7e2c041dd1d\installation-4.0.0\data\dbms
  • ..\database-abcf6a00-a407-40e3-99bb-e7e2c041dd1d\installation-4.0.0\data\transactions

The result from this method was that, all of my 15 DB's of version 3.5.14 asked for password because of it's change and when I entered the pass it always says that it's wrong. For some of 4.1.0 DB's I had the same result. Some of 4.1.0 and 4.2.0 showed up and I was able to search them in Neo4j browser, but it seems that I have not all data in them. In some i have nodes but have no labels etc. That is what I tried and it seems to be wrong fix-path for me. Is it a working solution to restore data from my "copy-paste" backup to my fresh-installed neo4j instance?

Thank you for your answers!

1 answer

  • answered 2021-12-23 14:49 David A Stumpf

    There is a specific procedure for backing up your database:

    neo4j-admin dump –database={your database} –verbose –to=dump/neo4j_211201.dump 
    

    You run this from Neo4j terminal in the database root folder. This dumps it into a sub-directory (dump) of the database which also contains the conf, import, plugin, and data folders.

    I've used this to send the dump to collaborators when we wantedto keep a project on PCs.

    Further info here

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