When installing or upgrading the Vertica database, used by the data aggregator, passwordless SSH is required. Operationally, passwordless SSH isn't needed if there's only a single database node, but it seems to be required for multiple nodes of Vertica. However, installation or upgrading with a single node requires it. To require a passwordless SSH configuration seems to be a poor security model for an application in today's environment.
I would like to be wrong, so is there any work around to this passwordless SSH for Vertica?