if r == nil {
		return
	}

	r.Lock()
	defer r.Unlock()
	delete(r.Cache, bucket)
}

// UpdateReplicaStat updates in-memory replica statistics with new values.
func (r *ReplicationStats) UpdateReplicaStat(bucket string, n int64) {
	if r == nil {
		return
	}

	r.Lock()
	defer r.Unlock()
	bs, ok := r.Cache[bucket]
	if !ok {
		bs = newBucketReplicationStats()

// if it is not successful yet.
func (l *Init) Do(f func() error) error {
	if atomic.LoadUint32(&l.done) == 0 {
		return l.do(f)
	}
	return nil
}

func (l *Init) do(f func() error) error {
	l.m.Lock()
	defer l.m.Unlock()
	if atomic.LoadUint32(&l.done) == 0 {
		if err := f(); err != nil {
			return err
		}
		// Mark as done only when f() is successful
		atomic.StoreUint32(&l.done, 1)
	}
	return nil
}

	if err != nil {
		return err
	}
	defer xhttp.DrainBody(respBody)
	return nil
}

// CommitBinary - sends commit binary message to remote peers.
func (client *peerRESTClient) CommitBinary(ctx context.Context) error {
	respBody, err := client.callWithContext(ctx, peerRESTMethodCommitBinary, nil, nil, -1)
	if err != nil {
		return err
	}
	defer xhttp.DrainBody(respBody)
	return nil
}

	// Add a timeout similar to what we expect upstream.
	ctx, cancel := context.WithTimeout(context.Background(), dsync.DefaultTimeouts.RefreshCall)
	defer cancel()

	resp := lockRPCRefresh.NewResponse()
	refreshed, err := l.ll.Refresh(ctx, *args)
	if err != nil {
		return l.makeResp(resp, err)
	}
	if !refreshed {
		return l.makeResp(resp, errLockNotFound)
	}

	// Start saver when object layer is ready.
	go func() {
		objAPI := newObjectLayerFn()
		for objAPI == nil {
			time.Sleep(time.Second)
			objAPI = newObjectLayerFn()
		}

		t := time.NewTicker(time.Minute)
		defer t.Stop()

		var exit bool
		for !exit {
			select {
			case <-t.C:
			case <-GlobalContext.Done():
				exit = true
			}
			m.mu.RLock()
			for _, v := range m.buckets {
				if !exit {

		if globalDomainIPs.Intersection(set.CreateStringSet(getHostsSlice(records)...)).IsEmpty() {
			// This is not for our server, so we can continue
			continue
		}

		wg.Add(1)
		go func(bucket string) {
			defer wg.Done()
			// We go to here, so we know the bucket no longer exists,
			// but is registered in DNS to this server
			if err := globalDNSConfig.Delete(bucket); err != nil {

	ctx, cancel := context.WithTimeout(context.Background(), testDefaultTimeout)
	defer cancel()

	for i := range 3 {
		err := s.client.MakeBucket(ctx, fmt.Sprintf("bucket%d", i+1), minio.MakeBucketOptions{})
		if err != nil {
			c.Fatalf("bucket create error: %v", err)
		}
		defer func(i int) {
			_ = s.client.RemoveBucket(ctx, fmt.Sprintf("bucket%d", i+1))
		}(i)
	}

		}
	}

	// Use a small block size to start sending quickly
	w := newMetacacheWriter(wr, 16<<10)
	w.reuseBlocks = true // We are not sharing results, so reuse buffers.
	defer w.Close()
	out, err := w.stream()
	if err != nil {
		return err
	}
	defer xioutil.SafeClose(out)
	var objsReturned int

	objReturned := func(metadata []byte) {
		if opts.Limit <= 0 {
			return
		}

func (sCfg *Config) AvailabilityOptimized() bool {
	ConfigLock.RLock()
	defer ConfigLock.RUnlock()
	if !sCfg.initialized {
		return true
	}
	return sCfg.Optimize == "availability" || sCfg.Optimize == ""
}

// Update update storage-class with new config
func (sCfg *Config) Update(newCfg Config) {
	ConfigLock.Lock()
	defer ConfigLock.Unlock()
	sCfg.RRS = newCfg.RRS
	sCfg.Standard = newCfg.Standard

Object locking requires locking to be enabled on a bucket at the time of bucket creation refer to `mc mb --with-lock`, object locking enables versioning on the bucket and cannot be disabled.