// is returned as a separate string.
func (l EndpointServerPools) GridHosts() (gridHosts []string, gridLocal string) {
	seenHosts := set.NewStringSet()
	for _, ep := range l {
		for _, endpoint := range ep.Endpoints {
			u := endpoint.GridHost()
			if seenHosts.Contains(u) {
				continue
			}
			seenHosts.Add(u)

			// Set local endpoint
			if endpoint.IsLocal {
				gridLocal = u
			}