I upgraded to opensearch from elastic after following the guide, Migrating to OpenSearch. Now, can’t connect to web on port 9000. Here is the error in server.log:
ERROR [VersionProbe] Unable to retrieve version from Elasticsearch node: Failed to connect to /127.0.0.1:9200. - Connection refused (Connection refused).
I’m running graylog on RHEL8 and the version is 4.3.1. All service status are green.
It looks like graylog is still looking for elasticsearch instead of using opensearch.