We are using OpenNMS (10.0.2-1) on an Ubuntu virtual to monitor 4 remote servers. 2 of the 4 (in data center 1) are providing performance statistics. The other two (in data center 2) are not. We are getting notices and events for all 4 remote servers. This supports the confirmation that the OpenNMS server is communicating with all 4 or the servers.
We have reviewed all the config files we can find and can confirm that the ip addresses for all 4 servers are present. We are unable to find a config file that did not have all 4 ip addresses present.
We have stopped and started OpenNMS several times and have restarted the server as well.
We are looking for idea of what to investigate / confirm to resolve this issue.