if grs != nil {
		qs.ActiveWorkers = grs.ActiveWorkers()
	} else {
		qs.ActiveWorkers = ActiveWorkerStat{}
	}
	qs.XferStats = make(map[RMetricName]XferStats)
	qs.QStats = r.qCache.getBucketStats(bucket)
	qs.TgtXferStats = make(map[string]map[RMetricName]XferStats)
	qs.MRFStats = ReplicationMRFStats{
		LastFailedCount: atomic.LoadUint64(&r.mrfStats.LastFailedCount),
	}

	r.RLock()
	defer r.RUnlock()

	for index, client := range sys.peerClients {
		client := client
		ng.Go(ctx, func() error {
			if client == nil {
				return errPeerNotReachable
			}
			bs, err := client.GetBucketStats(ctx, bucketName)
			if err != nil {
				return err
			}
			bucketStats[index] = bs
			return nil
		}, index, *client.host)
	}
	for _, nErr := range ng.Wait() {