Example #1
0
func copyMissingObjects(fs *filesystem.FileSystem, imageSClient *srpc.Client,
	objectClient *objectclient.ObjectClient, subName string) error {
	// Check to see which objects are in the objectserver.
	hashes := make([]hash.Hash, 0, fs.NumRegularInodes)
	for hash, _ := range fs.HashToInodesTable() {
		hashes = append(hashes, hash)
	}
	objectSizes, err := objectClient.CheckObjects(hashes)
	if err != nil {
		return err
	}
	missingHashes := make([]hash.Hash, 0)
	for index, size := range objectSizes {
		if size < 1 {
			missingHashes = append(missingHashes, hashes[index])
		}
	}
	if len(missingHashes) < 1 {
		return nil
	}
	// Get missing objects from sub.
	filesForMissingObjects := make([]string, 0, len(missingHashes))
	for _, hash := range missingHashes {
		if inums, ok := fs.HashToInodesTable()[hash]; !ok {
			return fmt.Errorf("no inode for object: %x", hash)
		} else if files, ok := fs.InodeToFilenamesTable()[inums[0]]; !ok {
			return fmt.Errorf("no file for inode: %d", inums[0])
		} else {
			filesForMissingObjects = append(filesForMissingObjects, files[0])
		}
	}
	objAdderQueue, err := objectclient.NewObjectAdderQueue(imageSClient)
	if err != nil {
		return err
	}
	subClient, err := srpc.DialHTTP("tcp",
		fmt.Sprintf("%s:%d", subName, constants.SubPortNumber), 0)
	if err != nil {
		return fmt.Errorf("error dialing %s", err)
	}
	defer subClient.Close()
	if err := subclient.GetFiles(subClient, filesForMissingObjects,
		func(reader io.Reader, size uint64) error {
			_, err := objAdderQueue.Add(reader, size)
			return err
		}); err != nil {
		return err
	}
	return objAdderQueue.Close()
}
Example #2
0
func enoughBytesForBenchmark(objectServer *objectclient.ObjectClient,
	request sub.FetchRequest) bool {
	lengths, err := objectServer.CheckObjects(request.Hashes)
	if err != nil {
		return false
	}
	var totalLength uint64
	for _, length := range lengths {
		totalLength += length
	}
	if totalLength > 1024*1024*64 {
		return true
	}
	return false
}
Example #3
0
func writeObjects(objectClient *objectclient.ObjectClient, hashes []hash.Hash,
	inums []uint64, lengths []uint64, inodesDir string) error {
	objectsReader, err := objectClient.GetObjects(hashes)
	if err != nil {
		return errors.New(fmt.Sprintf("Error getting object reader: %s\n",
			err.Error()))
	}
	defer objectsReader.Close()
	for index, hash := range hashes {
		err = writeObject(objectsReader, hash, inums[index], lengths[index],
			inodesDir)
		if err != nil {
			return err
		}
	}
	return nil
}
Example #4
0
func getAnnotation(objectClient *objectclient.ObjectClient, name string) (
	*image.Annotation, error) {
	if name == "" {
		return nil, nil
	}
	file, err := os.Open(name)
	if err != nil {
		return &image.Annotation{URL: name}, nil
	}
	defer file.Close()
	fi, err := file.Stat()
	if err != nil {
		return nil, err
	}
	reader := bufio.NewReader(file)
	hash, _, err := objectClient.AddObject(reader, uint64(fi.Size()), nil)
	return &image.Annotation{Object: &hash}, nil
}