initialized bool
	group       *singleflight.Group
	metadataMap map[string]BucketMetadata
}

// Count returns number of bucket metadata map entries.
func (sys *BucketMetadataSys) Count() int {
	sys.RLock()
	defer sys.RUnlock()

	return len(sys.metadataMap)
}

// Remove bucket metadata from memory.
func (sys *BucketMetadataSys) Remove(buckets ...string) {
	sys.Lock()
	for _, bucket := range buckets {

			}

			defer logger.AuditLog(r.Context(), w, r, mustGetClaimsFromToken(r))
			writeErrorResponse(r.Context(), w, errorCodes.ToAPIErr(ErrUnsupportedMetadata), r.URL)
			return
		}

		if isHTTPHeaderSizeTooLarge(r.Header) {
			if ok {
				tc.FuncName = "handler.ValidRequest"
				tc.ResponseRecorder.LogErrBody = true
			}

		t.Skip()
	}

	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	obj, disks, err := prepareErasure16(ctx)
	if err != nil {
		t.Fatalf("Prepare Erasure backend failed - %v", err)
	}
	setObjectLayer(obj)
	defer obj.Shutdown(context.Background())
	defer removeRoots(disks)

	type tamperKind int
	const (
		noTamper tamperKind = iota
		deletePart

	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	nDisks := 16
	disks, err := getRandomDisks(nDisks)
	if err != nil {
		t.Fatal(err)
	}
	objLayer, _, err := initObjectLayer(ctx, mustGetPoolEndpoints(0, disks...))
	if err != nil {
		removeRoots(disks)
		t.Fatal(err)
	}
	defer removeRoots(disks)
	z := objLayer.(*erasureServerPools)
	testShuffleDisks(t, z)
}

	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
}

	for i, client := range sys.peerClients {
		if client == nil {
			continue
		}
		wg.Add(1)
		go func(client *peerRESTClient, idx int) {
			defer wg.Done()
			ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
			defer cancel()
			info, err := client.ServerInfo(ctx, metrics)
			if err != nil {
				info.Endpoint = client.host.String()
				info.State = string(madmin.ItemOffline)

		defer fmt.Println(c.Local, "->", c.Remote, "WaitForConnect done")
	}
	c.connChange.L.Lock()
	if atomic.LoadUint32((*uint32)(&c.state)) == StateConnected {
		c.connChange.L.Unlock()
		// Happy path.
		return nil
	}
	ctx, cancel := context.WithCancel(ctx)
	defer cancel()
	changed := make(chan State, 1)
	go func() {
		defer xioutil.SafeClose(changed)
		for {

	return queueStore, nil
}

// Tear down queue store.
func tearDownQueueStore() error {
	return os.RemoveAll(queueDir)
}

// TestQueueStorePut - tests for store.Put
func TestQueueStorePut(t *testing.T) {
	defer func() {
		if err := tearDownQueueStore(); err != nil {
			t.Fatal("Failed to tear down store ", err)
		}
	}()
	store, err := setUpQueueStore(queueDir, 100)
	if err != nil {

	if t.opts.NoWait && v != nil && tNow-vTime < ttl.Milliseconds()*2 {
		if t.updating.TryLock() {
			go func() {
				defer t.updating.Unlock()
				t.update(context.Background())
			}()
		}
		return *v, nil
	}

	// Get lock. Either we get it or we wait for it.
	t.updating.Lock()
	defer t.updating.Unlock()

	if time.Since(time.UnixMilli(t.lastUpdateMs.Load())) < ttl {

	if a.AuthToken != "" {
		req.Header.Set("Authorization", a.AuthToken)
	}

	client := &http.Client{Transport: a.Transport}
	resp, err := client.Do(req)
	if err != nil {
		return err
	}
	defer a.CloseRespFn(resp.Body)

	return nil
}

// UnmarshalJSON - decodes JSON data.
func (a *Args) UnmarshalJSON(data []byte) error {
	// subtype to avoid recursive call to UnmarshalJSON()
	type subArgs Args