func (info NodeInfo2) String() string {
	if len(info.Hostname) != 0 {
		return info.Hostname
	}
	return makeBroadcastAddress(info.BroadcastAddress, info.HttpPort)
}
func (info NodeInfo2) String() string {
	if len(info.Hostname) != 0 {
		return info.Hostname
	}
	return makeBroadcastAddress(info.BroadcastAddress, info.HttpPort)
}
// String returns a human-readable representation of the node info.