Graylog 7 Data Node migration from OpenSearch 2.19.2-1

Graylog Central (peer support)
2

I’ve also reviewed the following ticket: Still can't seem to perform a Datanode migration From this I gather that

  1. I cannot do a live migration using the current Opensearch

  2. The entire Graylog cluster has to be shutdown and all the current opensearch nodes must be removed

This is really not a good thing- I was under the impression from the documentation that a live migration was a possibility, and fairly simple. From reading this, it looks like I may as well nuke and pave my entire cluster and start over from scratch. Is this actually the case, and one cannot do a live migration from opensearch to graylog data node?

Also, what is the benefit of even doing this? From what I can tell, it locks us out of being able to manage the opensearch backend, so no stats, no monitoring. If we want to have what we currently have, we have to get enterprise licensing. Is this actually the case?