Sorry, I’ve been absent from this conversation for awhile, so let me jump back in………
After reading through the thread, I tried going to http://ambari-server:8080/api/v1/clusters/clustername/services/NAGIOS
I got…………Parent Cluster resource doesn’t exist. Cluster not found, clusterName=clustername
So, I guess this means I didn’t install nagios, which I recall is correct.
Any other ideas why it would hang with ‘loading’ after logging in?