Your method worked !
I additionally had to run the engine rename service script to change the hostname of the
engine as well.
My only issue now is after readding all the nodes with new hostnames my main host node 1
will not allow me to remove and re-add as a new hostname as there is a gluster volume on
it.
It will not let me remove to readd because theres a gluster on the volume, have you run
into this?