Has anyone overcome this issue with the initial screen on Graylog 5.2 and OpenSearch?
Do you have your opensearch nodes listed under the elasticsearch hosts in server.conf ?
server.conf (both lines are commented):
Default: 127.0.0.1:9200
elasticsearch_hosts = http://node1:9200,http://user:password@node2:19200
Maybe my question would be more into: should I setup nodes? Graylog and opensearch are currently on the same VM.
It’s not ideal to have them on the same box in production, but it will work for testing.
In that case, you would want an uncommented line that said.
elasticsearch_hosts = http://127.0.0.1:9200
Make that change, restart the Graylog service and see what happens.