func (lh *lockServerHandler) RLockHandler(w http.ResponseWriter, r *http.Request) {
	args, err := getLockArgs(r)
	if err != nil {
		lh.writeErrorResponse(w, err)
		return
	}

	reply, err := lh.lsrv.RLock(&args)
	if err == nil && !reply {
		err = errLockConflict
	}
	if err != nil {
		lh.writeErrorResponse(w, err)
		return
	}
}

func stopLockServers() {
	for i := 0; i < numberOfNodes; i++ {

	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()

	brs, ok := r.Cache[bucket]
	if !ok {
		return qs
	}
	for arn := range brs.Stats {
		qs.TgtXferStats[arn] = make(map[RMetricName]XferStats)
	}
	count := 0

	}

	p.addToCacheUnderLock(uid, workload)
	return workload.Netns
}

// Get the netns if it's in the cache
func (p *podNetnsCache) Get(uid string) Netns {
	// lock current snapshot pod map
	p.mu.RLock()
	defer p.mu.RUnlock()
	if info, f := p.currentPodCache[uid]; f {
		return info.Netns
	}
	return nil
}

// make sure uid is in the cache, even if we don't have a netns

	for {
		select {
		case <-r.movingAvgTicker.C:
			r.updateMovingAvg()
		case <-GlobalContext.Done():
			return
		}
	}
}

func (r *ReplicationStats) updateMovingAvg() {
	r.RLock()
	for _, s := range r.Cache {
		for _, st := range s.Stats {
			st.XferRateLrg.measure.updateExponentialMovingAverage(time.Now())
			st.XferRateSml.measure.updateExponentialMovingAverage(time.Now())
		}
	}

	// are set.
	var lastN []log.Info
	if last > defaultLogBufferCount || last <= 0 {
		last = defaultLogBufferCount
	}

	lastN = make([]log.Info, last)
	sys.RLock()
	sys.logBuf.Do(func(p interface{}) {
		if p != nil {
			lg, ok := p.(log.Info)
			if ok && lg.SendLog(node, logKind) {
				lastN[cnt%last] = lg
				cnt++
			}
		}
	})
	sys.RUnlock()

	clocked := make(chan bool)
	cunlock := make(chan bool)
	cdone := make(chan bool)
	for i := 0; i < numReaders; i++ {
		go parallelReader(context.Background(), m, clocked, cunlock, cdone)
	}
	// Wait for all parallel RLock()s to succeed.
	for i := 0; i < numReaders; i++ {
		<-clocked
	}
	for i := 0; i < numReaders; i++ {
		cunlock <- true
	}
	// Wait for the goroutines to finish.
	for i := 0; i < numReaders; i++ {

	return "kafka"
}

// String - kafka string
func (h *Target) String() string {
	return "kafka"
}

// Stats returns the target statistics.
func (h *Target) Stats() types.TargetStats {
	h.logChMu.RLock()
	queueLength := len(h.logCh)
	h.logChMu.RUnlock()

	return types.TargetStats{
		TotalMessages:  atomic.LoadInt64(&h.totalMessages),
		FailedMessages: atomic.LoadInt64(&h.failedMessages),

	// Consequently, if err != nil, reply is always false
	return l.makeResp(resp, err)
}

// RLockHandler - Acquires an RLock.
func (l *lockRESTServer) RLockHandler(args *dsync.LockArgs) (*dsync.LockResp, *grid.RemoteErr) {
	resp := lockRPCRLock.NewResponse()
	success, err := l.ll.RLock(context.Background(), *args)
	if err == nil && !success {
		err = errLockConflict
	}
	return l.makeResp(resp, err)
}

	q.Lock()
	defer q.Unlock()
	q.srQueueStats.update()
	for _, s := range q.bucketStats {
		s.update()
	}
}

func (q *queueCache) getBucketStats(bucket string) InQueueMetric {
	q.RLock()
	defer q.RUnlock()
	v, ok := q.bucketStats[bucket]
	if !ok {
		return InQueueMetric{}
	}
	return InQueueMetric{
		Curr: QStat{Bytes: float64(v.nowBytes), Count: float64(v.nowCount)},

			for item := range m.opCh {
				err = item.EncodeMsg(mw)
				if err != nil {
					break
				}
			}
			mw.Flush()
			w.CloseWithError(err)
		}()
		return r
	}

	globalLocalDrivesMu.RLock()
	localDrives := cloneDrives(globalLocalDrivesMap)
	globalLocalDrivesMu.RUnlock()

	for _, localDrive := range localDrives {
		r := newReader()