}

	// Reply to the client before restarting, stopping MinIO server.
	writeSuccessResponseHeadersOnly(w)

	switch serviceSig {
	case serviceFreeze:
		freezeServices()
	case serviceUnFreeze:
		unfreezeServices()
	case serviceRestart, serviceStop:
		globalServiceSignalCh <- serviceSig
	}
}

type servicePeerResult struct {
	Host          string                        `json:"host"`

		ng.Go(GlobalContext, func() error {
			return client.SignalService(serviceSig, "", false, nil)
		}, idx, *client.host)
	}
	nerrs := ng.Wait()
	if freeze {
		freezeServices()
	} else {
		unfreezeServices()
	}
	return nerrs
}

// Netperf - perform mesh style network throughput test
func (sys *NotificationSys) Netperf(ctx context.Context, duration time.Duration) []madmin.NetperfNodeResult {