Solution for error vsql FATAL 5273 Unsupported frontend protocol 3.5 server supports 3.0 to 3.4
Just installed a new Vertica Cluster on host where I have already had Vertica installed and i got this error.
After searching a bit and I realized that i was using the client of my previous Vertica installation which was a higher version
of my actual install.
So the solution was to install the Vertica client with the same version as my Vertica server.