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
}
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
}
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
}
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
}
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
}