dose ambari cluster needs ssh access between ambari-server machine to all other host

[#1]

hi all,

we installed ambari cluster with 3 masters machines ( ambari server installed on master02 )

and 25 workers machines and 5 kafka's machines

dose ambari-server needs ssh access to all other machines in the cluster?

dose all files under /root/.ssh/.. on ambari-server machine are used by ambari cluster?

[#2 · Accepted solution]

Yes, you should be able to passwordless SSH to all nodes FROM Ambari. That way, the agents will be able to install automatically. You don't want to be installing Ambari agents manually.

https://docs.hortonworks.com/HDPDocuments/Ambari-2.4.1.0/bk_ambari-installation/content/set_up_passw...

[#3]

@Joe P , we ask about ssh after ambari server with all nodes are already installed , ( its clearly that need ssh during installation ) , but I ask if ssh is needed after ambari cluster is already installed ?

[#4]

No, as long as the agents are already installed you should be good to go.