mv19-hv99

fix the hosts lists and improve error handling

mv19-hv98

fix the hosts lists and improve error handling

mv19-hv97

fix the hosts lists and improve error handling

mv19-hv96

fix the hosts lists and improve error handling

mv19-hv95

fix the hosts lists and improve error handling

mv19-hv94

fix the hosts lists and improve error handling

mv19-hv93

fix the hosts lists and improve error handling

mv19-hv92

fix the hosts lists and improve error handling

mv19-hv91

fix the hosts lists and improve error handling

mv19-hv90

fix the hosts lists and improve error handling