I've been running an instance using neo4j as graph backend. Is it possible to switch over to a pure ES and MySQL only instance without losing the data within?

Yes, I believe it is. Haven't tried it yet, but it looks like it's possible to recreate the graph database and search indices from MySQL at any time: https://datahubproject.io/docs/how/restore-indices/

i was thinking of the article too, but was wondering the sequence of events needed, because somewhere in the process i also need to change the env values for gms at the same time to use ES as the graph. I didnt use helm, but rather created my own deployments for datahub, so i need to see how to implement this cronjob🤔

hey guys, @better-orange-49102 you can check the docker code here: https://github.com/linkedin/datahub/tree/master/docker/datahub-upgrade and the restore index logic here: https://github.com/linkedin/datahub/tree/master/datahub-upgrade/src/main/java/com/linkedin/datahub/upgrade/restoreindices