Created 07-27-2018 11:27 AM
It Seems your registration of host to ambari is failing.
You can actually click on the Failed and see what error its facing.
remember to perform passwordless SSH , incase you want ambari-server to install ambari-agent for you . refer to this link for more : https://docs.hortonworks.com/HDPDocuments/Ambari-18.104.22.168/bk_ambari-installation/content/set_up_passw...