return nil, fmt.Errorf("transition storage class not configured: %w", err)
	}

	fn, off, length, err := NewGetObjectReader(rs, oi, opts)
	if err != nil {
		return nil, ErrorRespToObjectError(err, bucket, object)
	}
	gopts := WarmBackendGetOpts{}

	// get correct offsets for object
	if off >= 0 && length >= 0 {
		gopts.startOffset = off
		gopts.length = length
	}

		}
		help = append(help, config.HelpKV{
			Key:         key,
			Description: fmt.Sprintf("enable %s target, default is 'off'", subSys),
			Optional:    false,
			Type:        "on|off",
		})
	}

	for _, hkv := range h {
		key := hkv.Key
		if envOnly {
			key = config.EnvPrefix + strings.ToTitle(subSys) + config.EnvWordDelimiter + strings.ToTitle(hkv.Key)

	buf, err := xattr.LGet(s.formatFile, attr)
	if err != nil {
		// We start off with '0' if we can read the attributes
		return 0
	}
	return binary.LittleEndian.Uint64(buf[:8])
}

func (s *xlStorage) getWriteAttribute() uint64 {
	attr := "user.total_writes"
	buf, err := xattr.LGet(s.formatFile, attr)
	if err != nil {
		// We start off with '0' if we can read the attributes
		return 0
	}

		// don't spend all our time copying.
		copy(b.buf, b.buf[b.off:])
	} else if c > maxInt-c-n {
		panic(ErrTooLarge)
	} else {
		// Add b.off to account for b.buf[:b.off] being sliced off the front.
		b.buf = growSlice(b.buf[b.off:], b.off+n)
	}
	// Restore b.off and len(b.buf).
	b.off = 0
	b.buf = b.buf[:m+n]
	return m
}

	default:
		return nil, errFileNotFound
	}

	etag := getMD5Hash(buf)
	r := bytes.NewReader(buf)

	off, length := int64(0), r.Size()
	if rs != nil {
		off, length, err = rs.GetOffsetLength(r.Size())
		if err != nil {
			return nil, err
		}
	}
	r.Seek(off, io.SeekStart)

	return NewGetObjectReaderFromReader(io.LimitReader(r, length), ObjectInfo{
		Bucket:      bucket,

		return config.DefaultHelpPostfix(DefaultKVS, key)
	}

	// Help - provides help for cache config
	Help = config.HelpKVS{
		config.HelpKV{
			Key:         Enable,
			Type:        "on|off",
			Description: "set to enable remote cache plugin" + defaultHelpPostfix(Enable),
			Optional:    true,
		},
		config.HelpKV{
			Key:         Endpoint,
			Type:        "string",

func setEventStreamHeaders(w http.ResponseWriter) {
	w.Header().Set(xhttp.ContentType, "text/event-stream")
	w.Header().Set(xhttp.CacheControl, "no-cache") // nginx to turn off buffering
	w.Header().Set("X-Accel-Buffering", "no")      // nginx to turn off buffering
}

// Write http common headers
func setCommonHeaders(w http.ResponseWriter) {
	// Set the "Server" http header.
	w.Header().Set(xhttp.ServerInfo, MinioStoreName)

			}

			logger(
				context.Background(),
				fmt.Errorf("unable to send webhook log entry to '%s' err '%w'", target.Name(), err),
				target.Name(),
			)

			select {
			// Retrying after 3secs back-off
			case <-retryTicker.C:
			case <-doneCh:
				return false
			}
		}
		return true
	}

	for {
		select {
		case key, ok := <-keyCh:
			if !ok {
				return
			}

			// structs are in system headers that cannot be corrected.
			continue
		}

		// Round off up to talign, assumed to be a power of 2.
		off = (off + talign - 1) &^ (talign - 1)

		if f.ByteOffset > off {
			fld, sizes = c.pad(fld, sizes, f.ByteOffset-off)
			off = f.ByteOffset
		}
		if f.ByteOffset < off {
			// Drop a packed field that we can't represent.
			continue
		}

		n := len(fld)

			for i, queue := range config.QueueList {
				// Remove ARN not found queues, because we previously allowed
				// adding unexpected entries into the config.
				//
				// With newer config disallowing changing / turning off
				// notification targets without removing ARN in notification
				// configuration we won't see this problem anymore.
				if reflect.DeepEqual(queue.ARN, arnErr.ARN) && i < len(config.QueueList) {