if si == nil {
		return nil
	}

	// We need a full push if the cluster VIP changes.
	needsFullPush := false

	// Get the updated MCS service.
	mcsHost := serviceClusterSetLocalHostnameForKR(si)
	mcsService := ic.GetService(mcsHost)

	ips := GetServiceImportIPs(si)
	if mcsService == nil {
		if event == model.EventDelete || len(ips) == 0 {