It works for us.

1. create /etc/xinetd.d/rstatd-server with contents
service rstatd
{
disable = no
type = RPC
socket_type = dgram
protocol = udp
server = /usr/sbin/rpc.rstatd
wait = yes
flags = IPv4
port = 60222
user = root
group = root
rpc_version = 1-4
instances = 1
}