}
	err = r.throttle.WaitN(r.ctx, tokens)
	if err != nil {
		return
	}
	n, err = r.r.Read(buf[:need])
	if err != nil {
		r.lastErr = err
		return
	}
	r.m.updateMeasurement(r.opts.BucketOptions, uint64(tokens))
	return
}

// NewMonitoredReader returns reference to a monitored reader that throttles reads to configured bandwidth for the
// bucket.

		bucketMovingAvgTicker: time.NewTicker(2 * time.Second),
		ctx:                   ctx,
		NodeCount:             numNodes,
	}
	go m.trackEWMA()
	return m
}

func (m *Monitor) updateMeasurement(opts BucketOptions, bytes uint64) {
	m.mlock.Lock()
	defer m.mlock.Unlock()

	tm, ok := m.bucketsMeasurement[opts]
	if !ok {
		tm = &bucketMeasurement{}
	}
	tm.incrementBytes(bytes)