We have set up passwordless ssh for the sudo user and verified it works.
But when we run the install for vertica:
sudo dr_install.sh -sp drinstall.properties
We are prompted for the ssh password for each remote node.
Release : 20.2
Component : PERFORMANCE MANAGEMENT INSTALLATIONS/UPGRADES
The dr_install script invokes the install_vertica script, and that has been designed to ask for the ssh password for the sudo user as an extra layer of security.
This is working as designed and the password for the sudo user must be entered when asked.
Ths will apply to future vertica upgrades as well.