if err != nil {
		s.writeErrorResponse(w, err)
		return
	}
	defer rc.Close()

	rf, ok := w.(io.ReaderFrom)
	if ok && runtime.GOOS != "windows" {
		// Attempt to use splice/sendfile() optimization, A very specific behavior mentioned below is necessary.
		// See https://github.com/golang/go/blob/f7c5cbb82087c55aa82081e931e0142783700ce8/src/net/sendfile_linux.go#L20

	// the user-agent slice.
	uaAppend := func(p, q string) {
		userAgentParts = append(userAgentParts, p, q)
	}
	uaAppend(MinioUAName, " (")
	uaAppend("", runtime.GOOS)
	uaAppend("; ", runtime.GOARCH)
	if mode != "" {
		uaAppend("; ", mode)
	}
	if IsDCOS() {
		uaAppend("; ", "dcos")
	}
	if IsKubernetes() {
		uaAppend("; ", "kubernetes")
	}
	if IsDocker() {

	}
}

func getMinioProcMetrics() *MetricsGroupV2 {
	mg := &MetricsGroupV2{
		cacheInterval: 10 * time.Second,
	}
	mg.RegisterRead(func(ctx context.Context) (metrics []MetricV2) {
		if runtime.GOOS == "windows" {
			return nil
		}

		p, err := procfs.Self()
		if err != nil {
			internalLogOnceIf(ctx, err, string(nodeMetricNamespace))
			return
		}

	{GOOS: "linux", GOARCH: "amd64"},
	{GOOS: "linux", GOARCH: "arm", CgoEnabled: true},
	{GOOS: "linux", GOARCH: "arm"},
	{GOOS: "darwin", GOARCH: "amd64", CgoEnabled: true},
	{GOOS: "darwin", GOARCH: "amd64"},
	{GOOS: "darwin", GOARCH: "arm64", CgoEnabled: true},
	{GOOS: "darwin", GOARCH: "arm64"},
	{GOOS: "windows", GOARCH: "amd64"},
	{GOOS: "windows", GOARCH: "386"},
	{GOOS: "freebsd", GOARCH: "386", CgoEnabled: true},

	CopyrightYear = "0000"

	// MinioReleaseTagTimeLayout - release tag time layout.
	MinioReleaseTagTimeLayout = "2006-01-02T15-04-05Z"

	// MinioOSARCH - OS and ARCH.
	minioOSARCH = runtime.GOOS + "-" + runtime.GOARCH

	// MinioReleaseBaseURL - release url without os and arch.
	MinioReleaseBaseURL = "https://dl.min.io/server/minio/release/"

	// MinioReleaseURL - release URL.

		},
		{
			envName:     "MESOS_CONTAINER_NAME",
			envValue:    "mesos-11111",
			mode:        globalMinioModeErasure,
			expectedStr: fmt.Sprintf("MinIO (%s; %s; %s; %s; source DEVELOPMENT.GOGET DEVELOPMENT.GOGET DEVELOPMENT.GOGET universe-%s", runtime.GOOS, runtime.GOARCH, globalMinioModeErasure, "dcos", "mesos-1111"),
		},
		{

		return 0
	}
	return limit
}

func availableMemory() (available uint64) {
	available = 2048 * blockSizeV2 * 2 // Default to 4 GiB when we can't find the limits.

	if runtime.GOOS == "linux" {
		// Useful in container mode
		limit := cgroupMemLimit()
		if limit > 0 {
			// A valid value is found, return its 75%
			available = (limit * 3) / 4
			return
		}

	var goRootList []string
	var defaultgoPathList []string
	var defaultgoRootList []string
	pathSeparator := ":"
	// Add all possible GOPATH paths into trimStrings
	// Split GOPATH depending on the OS type
	if runtime.GOOS == "windows" {
		pathSeparator = ";"
	}

	goPathList = strings.Split(goPath, pathSeparator)
	goRootList = strings.Split(goRoot, pathSeparator)
	defaultgoPathList = strings.Split(build.Default.GOPATH, pathSeparator)

	}

	vars := mux.Vars(r)
	updateURL := vars["updateURL"]
	dryRun := r.Form.Get("dry-run") == "true"

	mode := getMinioMode()
	if updateURL == "" {
		updateURL = minioReleaseInfoURL
		if runtime.GOOS == globalWindowsOSName {
			updateURL = minioReleaseWindowsInfoURL
		}
	}

	u, err := url.Parse(updateURL)
	if err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	credentials auth.Credentials, t *testing.T,
) {
	objectName := "test?object" // use file with ? to test URL parsing...
	if runtime.GOOS == "windows" {
		objectName = "test-object" // ...except on Windows
	}
	// object used for anonymous HTTP request test.
	anonObject := "anon-object"
	var err error
	opts := ObjectOptions{}