Exemplo n.º 1
0
func runCompact(cmd *Command, args []string) bool {

	if *compactVolumeId == -1 {
		return false
	}

	vid := storage.VolumeId(*compactVolumeId)
	v, err := storage.NewVolume(*compactVolumePath, *compactVolumeCollection, vid,
		storage.NeedleMapInMemory, nil, nil)
	if err != nil {
		glog.Fatalf("Load Volume [ERROR] %s\n", err)
	}
	if err = v.Compact(); err != nil {
		glog.Fatalf("Compact Volume [ERROR] %s\n", err)
	}

	return true
}
Exemplo n.º 2
0
func runBackup(cmd *Command, args []string) bool {
	if *s.volumeId == -1 {
		return false
	}
	vid := storage.VolumeId(*s.volumeId)

	// find volume location, replication, ttl info
	lookup, err := operation.Lookup(*s.master, vid.String())
	if err != nil {
		fmt.Printf("Error looking up volume %d: %v\n", vid, err)
		return true
	}
	volumeServer := lookup.Locations[0].Url

	stats, err := operation.GetVolumeSyncStatus(volumeServer, vid.String())
	if err != nil {
		fmt.Printf("Error get volume %d status: %v\n", vid, err)
		return true
	}
	ttl, err := storage.ReadTTL(stats.Ttl)
	if err != nil {
		fmt.Printf("Error get volume %d ttl %s: %v\n", vid, stats.Ttl, err)
		return true
	}
	replication, err := storage.NewReplicaPlacementFromString(stats.Replication)
	if err != nil {
		fmt.Printf("Error get volume %d replication %s : %v\n", vid, stats.Replication, err)
		return true
	}

	v, err := storage.NewVolume(*s.dir, *s.collection, vid, storage.NeedleMapInMemory, replication, ttl)
	if err != nil {
		fmt.Printf("Error creating or reading from volume %d: %v\n", vid, err)
		return true
	}

	if err := v.Synchronize(volumeServer); err != nil {
		fmt.Printf("Error synchronizing volume %d: %v\n", vid, err)
		return true
	}

	return true
}
Exemplo n.º 3
0
func setup(topologyLayout string) *Topology {
	var data interface{}
	err := json.Unmarshal([]byte(topologyLayout), &data)
	if err != nil {
		fmt.Println("error:", err)
	}
	fmt.Println("data:", data)

	//need to connect all nodes first before server adding volumes
	topo, err := NewTopology("weedfs", "/etc/weedfs/weedfs.conf",
		sequence.NewMemorySequencer(), 32*1024, 5)
	if err != nil {
		panic("error: " + err.Error())
	}
	mTopology := data.(map[string]interface{})
	for dcKey, dcValue := range mTopology {
		dc := NewDataCenter(dcKey)
		dcMap := dcValue.(map[string]interface{})
		topo.LinkChildNode(dc)
		for rackKey, rackValue := range dcMap {
			rack := NewRack(rackKey)
			rackMap := rackValue.(map[string]interface{})
			dc.LinkChildNode(rack)
			for serverKey, serverValue := range rackMap {
				server := NewDataNode(serverKey)
				serverMap := serverValue.(map[string]interface{})
				rack.LinkChildNode(server)
				for _, v := range serverMap["volumes"].([]interface{}) {
					m := v.(map[string]interface{})
					vi := storage.VolumeInfo{
						Id:      storage.VolumeId(int64(m["id"].(float64))),
						Size:    uint64(m["size"].(float64)),
						Version: storage.CurrentVersion}
					server.AddOrUpdateVolume(vi)
				}
				server.UpAdjustMaxVolumeCountDelta(int(serverMap["limit"].(float64)))
			}
		}
	}

	return topo
}
Exemplo n.º 4
0
func runFix(cmd *Command, args []string) bool {

	if *fixVolumeId == -1 {
		return false
	}

	fileName := strconv.Itoa(*fixVolumeId)
	if *fixVolumeCollection != "" {
		fileName = *fixVolumeCollection + "_" + fileName
	}
	indexFile, err := os.OpenFile(path.Join(*fixVolumePath, fileName+".idx"), os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
	if err != nil {
		glog.Fatalf("Create Volume Index [ERROR] %s\n", err)
	}
	defer indexFile.Close()

	nm := storage.NewNeedleMap(indexFile)
	defer nm.Close()

	vid := storage.VolumeId(*fixVolumeId)
	err = storage.ScanVolumeFile(*fixVolumePath, *fixVolumeCollection, vid,
		storage.NeedleMapInMemory,
		func(superBlock storage.SuperBlock) error {
			return nil
		}, false, func(n *storage.Needle, offset int64) error {
			glog.V(2).Infof("key %d offset %d size %d disk_size %d gzip %v", n.Id, offset, n.Size, n.DiskSize(), n.IsGzipped())
			if n.Size > 0 {
				pe := nm.Put(n.Id, uint32(offset/storage.NeedlePaddingSize), n.Size)
				glog.V(2).Infof("saved %d with error %v", n.Size, pe)
			} else {
				glog.V(2).Infof("skipping deleted file ...")
				return nm.Delete(n.Id)
			}
			return nil
		})
	if err != nil {
		glog.Fatalf("Export Volume File [ERROR] %s\n", err)
	}

	return true
}
Exemplo n.º 5
0
func runExport(cmd *Command, args []string) bool {

	var err error

	if *newer != "" {
		if newerThan, err = time.ParseInLocation(timeFormat, *newer, localLocation); err != nil {
			fmt.Println("cannot parse 'newer' argument: " + err.Error())
			return false
		}
		newerThanUnix = newerThan.Unix()
	}

	if *export.volumeId == -1 {
		return false
	}

	if *output != "" {
		if *output != "-" && !strings.HasSuffix(*output, ".tar") {
			fmt.Println("the output file", *output, "should be '-' or end with .tar")
			return false
		}

		if fileNameTemplate, err = template.New("name").Parse(*format); err != nil {
			fmt.Println("cannot parse format " + *format + ": " + err.Error())
			return false
		}

		var outputFile *os.File
		if *output == "-" {
			outputFile = os.Stdout
		} else {
			if outputFile, err = os.Create(*output); err != nil {
				glog.Fatalf("cannot open output tar %s: %s", *output, err)
			}
		}
		defer outputFile.Close()
		tarOutputFile = tar.NewWriter(outputFile)
		defer tarOutputFile.Close()
		t := time.Now()
		tarHeader = tar.Header{Mode: 0644,
			ModTime: t, Uid: os.Getuid(), Gid: os.Getgid(),
			Typeflag:   tar.TypeReg,
			AccessTime: t, ChangeTime: t}
	}

	fileName := strconv.Itoa(*export.volumeId)
	if *export.collection != "" {
		fileName = *export.collection + "_" + fileName
	}
	vid := storage.VolumeId(*export.volumeId)
	indexFile, err := os.OpenFile(path.Join(*export.dir, fileName+".idx"), os.O_RDONLY, 0644)
	if err != nil {
		glog.Fatalf("Create Volume Index [ERROR] %s\n", err)
	}
	defer indexFile.Close()

	needleMap, err := storage.LoadNeedleMap(indexFile)
	if err != nil {
		glog.Fatalf("cannot load needle map from %s: %s", indexFile.Name(), err)
	}

	var version storage.Version

	err = storage.ScanVolumeFile(*export.dir, *export.collection, vid,
		storage.NeedleMapInMemory,
		func(superBlock storage.SuperBlock) error {
			version = superBlock.Version()
			return nil
		}, true, func(n *storage.Needle, offset int64) error {
			nv, ok := needleMap.Get(n.Id)
			glog.V(3).Infof("key %d offset %d size %d disk_size %d gzip %v ok %v nv %+v",
				n.Id, offset, n.Size, n.DiskSize(), n.IsGzipped(), ok, nv)
			if ok && nv.Size > 0 && int64(nv.Offset)*8 == offset {
				if newerThanUnix >= 0 && n.HasLastModifiedDate() && n.LastModified < uint64(newerThanUnix) {
					glog.V(3).Infof("Skipping this file, as it's old enough: LastModified %d vs %d",
						n.LastModified, newerThanUnix)
					return nil
				}
				return walker(vid, n, version)
			}
			if !ok {
				glog.V(2).Infof("This seems deleted %d size %d", n.Id, n.Size)
			} else {
				glog.V(2).Infof("Skipping later-updated Id %d size %d", n.Id, n.Size)
			}
			return nil
		})
	if err != nil {
		glog.Fatalf("Export Volume File [ERROR] %s\n", err)
	}
	return true
}