_, err := opts.UnmarshalMsg(payload)
	if err != nil {
		return grid.NewRemoteErr(err)
	}

	if !s.checkID(opts.DiskID) {
		return grid.NewRemoteErr(errDiskNotFound)
	}

	ctx, cancel := context.WithCancel(ctx)
	defer cancel()
	return grid.NewRemoteErr(s.getStorage().WalkDir(ctx, opts, grid.WriterToChannel(ctx, out)))

	// Updates must be closed before we return.
	defer xioutil.SafeClose(updates)

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

	var wg sync.WaitGroup
	var mu sync.Mutex
	var results []dataUsageCache
	var firstErr error

	allBuckets, err := z.ListBuckets(ctx, BucketOptions{})
	if err != nil {

	if objectAPI == nil {
		return
	}

	pools, ok := objectAPI.(*erasureServerPools)
	if !ok {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL)
		return
	}

	// Cancel any ongoing rebalance operation
	globalNotificationSys.StopRebalance(r.Context())
	writeSuccessResponseHeadersOnly(w)
	adminLogIf(ctx, pools.saveRebalanceStats(GlobalContext, 0, rebalSaveStoppedAt))

	// Since `apiRouter` satisfies `http.Handler` it has a ServeHTTP to execute the logic of the handler.
	// Call the ServeHTTP to execute the handler.
	apiRouter.ServeHTTP(rec, req)

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

	// Now check if we actually wrote to backend (regardless of the response
	// returned by the server).
	z := obj.(*erasureServerPools)
	xl := z.serverPools[0].sets[0]

		CurvePreferences: crypto.TLSCurveIDs(),
		TCPOptions:       globalTCPOptions,
		EnableHTTP2:      false,
	}

	if clientCert != "" && clientKey != "" {
		ctx, cancel := context.WithTimeout(context.Background(), time.Second)
		defer cancel()
		transport, err := s.NewHTTPTransportWithClientCerts(ctx, clientCert, clientKey)
		if err != nil {

		if client == nil {
			continue
		}
		ng.Go(ctx, func() error {
			// Give 15 seconds to each remote call.
			// Errors are logged but not returned.
			ctx, cancel := context.WithTimeout(ctx, 15*time.Second)
			defer cancel()
			data, err := client.DownloadProfileData(ctx)
			if err != nil {
				reqInfo := (&logger.ReqInfo{}).AppendTags("peerAddress", client.host.String())

		if err != nil {
			t.Fatalf("%s: <ERROR> %s", instanceType, err)
		}
	}
	{
		ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
		defer cancel()
		token := ""
		for ctx.Err() == nil {
			result, err := obj.ListObjectsV2(ctx, "bucket", "testPrefix", token, "", 2, false, "")
			if err != nil {

	healthClient.NoMetrics = true

	// Construct a new health function.
	restClient.HealthCheckFn = func() bool {
		ctx, cancel := context.WithTimeout(context.Background(), restClient.HealthCheckTimeout)
		defer cancel()
		respBody, err := healthClient.Call(ctx, peerRESTMethodHealth, nil, nil, -1)
		xhttp.DrainBody(respBody)
		return !isNetworkError(err)
	}

			adminRouter.Methods(http.MethodPost).Path(adminVersion+"/pools/cancel").HandlerFunc(adminMiddleware(adminAPI.CancelDecommission, traceAllFlag)).Queries("pool", "{pool:.*}")

			// Rebalance operations

func (r *RingBuffer) SetBlocking(block bool) *RingBuffer {
	r.block = block
	if block {
		r.readCond = sync.NewCond(&r.mu)
		r.writeCond = sync.NewCond(&r.mu)
	}
	return r
}

// WithCancel sets a context to cancel the ring buffer.
// When the context is canceled, the ring buffer will be closed with the context error.
// A goroutine will be started and run until the provided context is canceled.