I'm newbie to ambari, I followed hortronworks tutorial on how to install ambari. My question is in the step of install options, should I set hostname of server and agent or just agent? (because when I set only the agent It pass otherwise it fail!)
thank you in advance
You have to give the IPs of all the nodes/hosts.
If its not working on your Server node then its mostly because your ssh authorized_key step wasn't completed on that node.
Do cat id_rsa.pub >> authorized_keys on your Server node(in the .ssh dir).
(Do not touch any other ssh keys)
Try to ssh to your Server node from the same node. If it works without a password then you have fixed it.