bf := bufio.NewReader(r)
	switch f := detect(bf); f {
	case formatGzip:
		gz, err := gzip.NewReader(bf)
		if err != nil {
			return err
		}
		defer gz.Close()
		r = gz
	case formatS2:
		r = s2.NewReader(bf)
	case formatZstd:
		// Limit to 16 MiB per stream.
		dec, err := zstd.NewReader(bf, zstd.WithDecoderMaxWindow(16<<20))

)

var gzipHandler = func() func(http.Handler) http.HandlerFunc {
	gz, err := gzhttp.NewWrapper(gzhttp.MinSize(1000), gzhttp.CompressionLevel(gzip.BestSpeed))
	if err != nil {
		// Static params, so this is very unlikely.
		logger.Fatal(err, "Unable to initialize server")
	}
	return gz
}()

// Set of handler options as bit flags
type hFlag uint8

const (

	if !w.opts.Compress {
		return nil
	}

	oldLgFile := w.f.Name()
	r, err := os.Open(oldLgFile)
	if err != nil {
		return err
	}
	defer r.Close()

	gw, err := os.Create(oldLgFile + ".gz")
	if err != nil {
		return err
	}
	defer gw.Close()

	var wc io.WriteCloser
	wc = gzip.NewWriter(gw)
	if _, err = io.Copy(wc, r); err != nil {
		return err
	}

	globalCompressConfigMu sync.Mutex
	globalCompressConfig   compress.Config

	// Some standard object extensions which we strictly dis-allow for compression.
	standardExcludeCompressExtensions = []string{".gz", ".bz2", ".rar", ".zip", ".7z", ".xz", ".mp4", ".mkv", ".mov", ".jpg", ".png", ".gif"}

	// Some standard content-types which we strictly dis-allow for compression.

)

func TestReadXLMetaNoData(t *testing.T) {
	f, err := os.Open("testdata/xl.meta-corrupt.gz")
	if err != nil {
		t.Fatal(err)
	}
	defer f.Close()

	gz, err := gzip.NewReader(bufio.NewReader(f))
	if err != nil {
		t.Fatal(err)
	}

	buf, err := io.ReadAll(gz)
	if err != nil {
		t.Fatal(err)
	}

	_, err = readXLMetaNoData(bytes.NewReader(buf), int64(len(buf)))
	if err == nil {

		d, err := os.MkdirTemp("", "data-snapshot-*")
		if err != nil {
			panic(fmt.Errorf("failed to make temp dir: %v", err))
		}
		f, err := os.Open("testdata/manifest-generate/data-snapshot.tar.gz")
		if err != nil {
			panic(fmt.Errorf("failed to read data snapshot: %v", err))
		}
		if err := extract(f, d); err != nil {
			panic(fmt.Errorf("failed to extract data snapshot: %v", err))
		}

	subnetHealthPath = "/api/health/upload"
)

func sendHealthInfo(ctx context.Context, healthInfo madmin.HealthInfo) error {
	url := globalSubnetConfig.BaseURL + subnetHealthPath

	filename := fmt.Sprintf("health_%s.json.gz", UTCNow().Format("20060102150405"))
	url += "?filename=" + filename

	_, err := globalSubnetConfig.Upload(url, filename, createHealthJSONGzip(ctx, healthInfo))
	return err
}