g := errgroup.WithNErrs(len(sys.peerClients))

	nodeBuckets := make([][]BucketInfo, len(sys.peerClients))

	for idx, client := range sys.peerClients {
		idx := idx
		client := client
		g.Go(func() error {
			if client == nil {
				return errPeerOffline
			}
			localBuckets, err := client.ListBuckets(ctx, opts)
			if err != nil {
				return err
			}
			nodeBuckets[idx] = localBuckets
			return nil
		}, idx)