if sys == nil {
		return nil
	}
	g := errgroup.WithNErrs(len(sys.peerClients))
	peerChannels := make([]<-chan MetricV2, len(sys.peerClients))
	for index := range sys.peerClients {
		index := index
		g.Go(func() error {
			if sys.peerClients[index] == nil {
				return errPeerNotReachable
			}
			var err error
			peerChannels[index], err = sys.peerClients[index].GetResourceMetrics(ctx)
			return err
		}, index)
	}