add TTL support

The volume TTL and file TTL are not necessarily the same. as long as
file TTL is smaller than volume TTL, it'll be fine.

volume TTL is used when assigning file id, e.g.
http://.../dir/assign?ttl=3h

file TTL is used when uploading

go/filer/directory_in_map.go

@@ -187,10 +187,10 @@ func (dm *DirectoryManagerInMap) makeDirectory(dirPath string) (dir *DirectoryEn
 	for i := 1; i < len(parts); i++ {
 		sub, ok := dir.SubDirectories[parts[i]]
 		if !ok {
-		  var err error
+			var err error
 			sub, err = dm.NewDirectoryEntryInMap(dir, parts[i])
 			if err != nil {
-			  return nil, false
+				return nil, false
 			}
 			dir.SubDirectories[parts[i]] = sub
 			created = true

go/operation/assign_file_id.go

@@ -17,7 +17,7 @@ type AssignResult struct {
 	Error     string `json:"error,omitempty"`
 }
 
-func Assign(server string, count int, replication string, collection string) (*AssignResult, error) {
+func Assign(server string, count int, replication string, collection string, ttl string) (*AssignResult, error) {
 	values := make(url.Values)
 	values.Add("count", strconv.Itoa(count))
 	if replication != "" {
@@ -26,6 +26,9 @@ func Assign(server string, count int, replication string, collection string) (*A
 	if collection != "" {
 		values.Add("collection", collection)
 	}
+	if ttl != "" {
+		values.Add("ttl", ttl)
+	}
 	jsonBlob, err := util.Post("http://"+server+"/dir/assign", values)
 	glog.V(2).Info("assign result :", string(jsonBlob))
 	if err != nil {

go/operation/submit.go

@@ -20,6 +20,7 @@ type FilePart struct {
 	ModTime     int64 //in seconds
 	Replication string
 	Collection  string
+	Ttl         string
 	Server      string //this comes from assign result
 	Fid         string //this comes from assign result, but customizable
 }
@@ -32,12 +33,12 @@ type SubmitResult struct {
 	Error    string `json:"error,omitempty"`
 }
 
-func SubmitFiles(master string, files []FilePart, replication string, collection string, maxMB int) ([]SubmitResult, error) {
+func SubmitFiles(master string, files []FilePart, replication string, collection string, ttl string, maxMB int) ([]SubmitResult, error) {
 	results := make([]SubmitResult, len(files))
 	for index, file := range files {
 		results[index].FileName = file.FileName
 	}
-	ret, err := Assign(master, len(files), replication, collection)
+	ret, err := Assign(master, len(files), replication, collection, ttl)
 	if err != nil {
 		for index, _ := range files {
 			results[index].Error = err.Error()
@@ -112,7 +113,7 @@ func (fi FilePart) Upload(maxMB int, master string) (retSize uint32, err error)
 		chunks := fi.FileSize/chunkSize + 1
 		fids := make([]string, 0)
 		for i := int64(0); i < chunks; i++ {
-			id, count, e := upload_one_chunk(fi.FileName+"-"+strconv.FormatInt(i+1, 10), io.LimitReader(fi.Reader, chunkSize), master, fi.Replication, fi.Collection)
+			id, count, e := upload_one_chunk(fi.FileName+"-"+strconv.FormatInt(i+1, 10), io.LimitReader(fi.Reader, chunkSize), master, fi.Replication, fi.Collection, fi.Ttl)
 			if e != nil {
 				return 0, e
 			}
@@ -130,8 +131,8 @@ func (fi FilePart) Upload(maxMB int, master string) (retSize uint32, err error)
 	return
 }
 
-func upload_one_chunk(filename string, reader io.Reader, master, replication string, collection string) (fid string, size uint32, e error) {
-	ret, err := Assign(master, 1, replication, collection)
+func upload_one_chunk(filename string, reader io.Reader, master, replication string, collection string, ttl string) (fid string, size uint32, e error) {
+	ret, err := Assign(master, 1, replication, collection, ttl)
 	if err != nil {
 		return "", 0, err
 	}

go/operation/system_message.pb.go

@@ -15,12 +15,10 @@ It has these top-level messages:
 package operation
 
 import proto "code.google.com/p/goprotobuf/proto"
-import json "encoding/json"
 import math "math"
 
-// Reference proto, json, and math imports to suppress error if they are not otherwise used.
+// Reference imports to suppress errors if they are not otherwise used.
 var _ = proto.Marshal
-var _ = &json.SyntaxError{}
 var _ = math.Inf
 
 type VolumeInformationMessage struct {
@@ -33,6 +31,7 @@ type VolumeInformationMessage struct {
 	ReadOnly         *bool   `protobuf:"varint,7,opt,name=read_only" json:"read_only,omitempty"`
 	ReplicaPlacement *uint32 `protobuf:"varint,8,req,name=replica_placement" json:"replica_placement,omitempty"`
 	Version          *uint32 `protobuf:"varint,9,opt,name=version,def=2" json:"version,omitempty"`
+	Ttl              *uint32 `protobuf:"varint,10,opt,name=ttl" json:"ttl,omitempty"`
 	XXX_unrecognized []byte  `json:"-"`
 }
 
@@ -105,6 +104,13 @@ func (m *VolumeInformationMessage) GetVersion() uint32 {
 	return Default_VolumeInformationMessage_Version
 }
 
+func (m *VolumeInformationMessage) GetTtl() uint32 {
+	if m != nil && m.Ttl != nil {
+		return *m.Ttl
+	}
+	return 0
+}
+
 type JoinMessage struct {
 	IsInit           *bool                       `protobuf:"varint,1,opt,name=is_init" json:"is_init,omitempty"`
 	Ip               *string                     `protobuf:"bytes,2,req,name=ip" json:"ip,omitempty"`

go/proto/system_message.proto

@@ -10,6 +10,7 @@ message VolumeInformationMessage {
   optional bool read_only = 7;
   required uint32 replica_placement = 8;
   optional uint32 version = 9 [default=2];
+  optional uint32 ttl = 10;
 }
 
 message JoinMessage {

go/storage/needle.go

@@ -38,12 +38,13 @@ type Needle struct {
 	MimeSize     uint8  //version2
 	Mime         []byte `comment:"maximum 256 characters"` //version2
 	LastModified uint64 //only store LastModifiedBytesLength bytes, which is 5 bytes to disk
+	Ttl          *TTL
 
 	Checksum CRC    `comment:"CRC32 to check integrity"`
 	Padding  []byte `comment:"Aligned to 8 bytes"`
 }
 
-func ParseUpload(r *http.Request) (fileName string, data []byte, mimeType string, isGzipped bool, modifiedTime uint64, e error) {
+func ParseUpload(r *http.Request) (fileName string, data []byte, mimeType string, isGzipped bool, modifiedTime uint64, ttl *TTL, e error) {
 	form, fe := r.MultipartReader()
 	if fe != nil {
 		glog.V(0).Infoln("MultipartReader [ERROR]", fe)
@@ -92,12 +93,13 @@ func ParseUpload(r *http.Request) (fileName string, data []byte, mimeType string
 		fileName = fileName[:len(fileName)-3]
 	}
 	modifiedTime, _ = strconv.ParseUint(r.FormValue("ts"), 10, 64)
+	ttl, _ = ReadTTL(r.FormValue("ttl"))
 	return
 }
 func NewNeedle(r *http.Request, fixJpgOrientation bool) (n *Needle, e error) {
 	fname, mimeType, isGzipped := "", "", false
 	n = new(Needle)
-	fname, n.Data, mimeType, isGzipped, n.LastModified, e = ParseUpload(r)
+	fname, n.Data, mimeType, isGzipped, n.LastModified, n.Ttl, e = ParseUpload(r)
 	if e != nil {
 		return
 	}
@@ -116,6 +118,9 @@ func NewNeedle(r *http.Request, fixJpgOrientation bool) (n *Needle, e error) {
 		n.LastModified = uint64(time.Now().Unix())
 	}
 	n.SetHasLastModifiedDate()
+	if n.Ttl != nil {
+		n.SetHasTtl()
+	}
 
 	if fixJpgOrientation {
 		loweredName := strings.ToLower(fname)

go/storage/needle_read_write.go

@@ -14,7 +14,9 @@ const (
 	FlagHasName             = 0x02
 	FlagHasMime             = 0x04
 	FlagHasLastModifiedDate = 0x08
+	FlagHasTtl              = 0x10
 	LastModifiedBytesLength = 5
+	TtlBytesLength          = 2
 )
 
 func (n *Needle) DiskSize() int64 {
@@ -70,6 +72,9 @@ func (n *Needle) Append(w io.Writer, version Version) (size uint32, err error) {
 			if n.HasLastModifiedDate() {
 				n.Size = n.Size + LastModifiedBytesLength
 			}
+			if n.HasTtl() {
+				n.Size = n.Size + TtlBytesLength
+			}
 		}
 		size = n.DataSize
 		util.Uint32toBytes(header[12:16], n.Size)
@@ -112,6 +117,12 @@ func (n *Needle) Append(w io.Writer, version Version) (size uint32, err error) {
 					return
 				}
 			}
+			if n.HasTtl() {
+				n.Ttl.ToBytes(header[0:TtlBytesLength])
+				if _, err = w.Write(header[0:TtlBytesLength]); err != nil {
+					return
+				}
+			}
 		}
 		padding := NeedlePaddingSize - ((NeedleHeaderSize + n.Size + NeedleChecksumSize) % NeedlePaddingSize)
 		util.Uint32toBytes(header[0:NeedleChecksumSize], n.Checksum.Value())
@@ -194,6 +205,10 @@ func (n *Needle) readNeedleDataVersion2(bytes []byte) {
 		n.LastModified = util.BytesToUint64(bytes[index : index+LastModifiedBytesLength])
 		index = index + LastModifiedBytesLength
 	}
+	if index < lenBytes && n.HasTtl() {
+		n.Ttl = LoadTTLFromBytes(bytes[index : index+TtlBytesLength])
+		index = index + TtlBytesLength
+	}
 }
 
 func ReadNeedleHeader(r *os.File, version Version, offset int64) (n *Needle, bodyLength uint32, err error) {
@@ -263,3 +278,9 @@ func (n *Needle) HasLastModifiedDate() bool {
 func (n *Needle) SetHasLastModifiedDate() {
 	n.Flags = n.Flags | FlagHasLastModifiedDate
 }
+func (n *Needle) HasTtl() bool {
+	return n.Flags&FlagHasTtl > 0
+}
+func (n *Needle) SetHasTtl() {
+	n.Flags = n.Flags | FlagHasTtl
+}

go/storage/replica_placement.go

@@ -5,10 +5,6 @@ import (
 	"fmt"
 )
 
-const (
-	ReplicaPlacementCount = 9
-)
-
 type ReplicaPlacement struct {
 	SameRackCount       int
 	DiffRackCount       int
@@ -55,7 +51,3 @@ func (rp *ReplicaPlacement) String() string {
 func (rp *ReplicaPlacement) GetCopyCount() int {
 	return rp.DiffDataCenterCount + rp.DiffRackCount + rp.SameRackCount + 1
 }
-
-func (rp *ReplicaPlacement) GetReplicationLevelIndex() int {
-	return rp.DiffDataCenterCount*3 + rp.DiffRackCount*3 + rp.SameRackCount
-}

go/storage/store.go

@@ -14,6 +14,10 @@ import (
 	"strings"
 )
 
+const (
+	MAX_TTL_VOLUME_REMOVAL_DELAY = 10 // 10 minutes
+)
+
 type DiskLocation struct {
 	Directory      string
 	MaxVolumeCount int
@@ -83,11 +87,15 @@ func NewStore(port int, ip, publicUrl string, dirnames []string, maxVolumeCounts
 	}
 	return
 }
-func (s *Store) AddVolume(volumeListString string, collection string, replicaPlacement string) error {
+func (s *Store) AddVolume(volumeListString string, collection string, replicaPlacement string, ttlString string) error {
 	rt, e := NewReplicaPlacementFromString(replicaPlacement)
 	if e != nil {
 		return e
 	}
+	ttl, e := ReadTTL(ttlString)
+	if e != nil {
+		return e
+	}
 	for _, range_string := range strings.Split(volumeListString, ",") {
 		if strings.Index(range_string, "-") < 0 {
 			id_string := range_string
@@ -95,7 +103,7 @@ func (s *Store) AddVolume(volumeListString string, collection string, replicaPla
 			if err != nil {
 				return fmt.Errorf("Volume Id %s is not a valid unsigned integer!", id_string)
 			}
-			e = s.addVolume(VolumeId(id), collection, rt)
+			e = s.addVolume(VolumeId(id), collection, rt, ttl)
 		} else {
 			pair := strings.Split(range_string, "-")
 			start, start_err := strconv.ParseUint(pair[0], 10, 64)
@@ -107,7 +115,7 @@ func (s *Store) AddVolume(volumeListString string, collection string, replicaPla
 				return fmt.Errorf("Volume End Id %s is not a valid unsigned integer!", pair[1])
 			}
 			for id := start; id <= end; id++ {
-				if err := s.addVolume(VolumeId(id), collection, rt); err != nil {
+				if err := s.addVolume(VolumeId(id), collection, rt, ttl); err != nil {
 					e = err
 				}
 			}
@@ -129,6 +137,14 @@ func (s *Store) DeleteCollection(collection string) (e error) {
 	}
 	return
 }
+func (s *Store) DeleteVolume(volumes map[VolumeId]*Volume, v *Volume) (e error) {
+	e = v.Destroy()
+	if e != nil {
+		return
+	}
+	delete(volumes, v.Id)
+	return
+}
 func (s *Store) findVolume(vid VolumeId) *Volume {
 	for _, location := range s.Locations {
 		if v, found := location.volumes[vid]; found {
@@ -148,13 +164,14 @@ func (s *Store) findFreeLocation() (ret *DiskLocation) {
 	}
 	return ret
 }
-func (s *Store) addVolume(vid VolumeId, collection string, replicaPlacement *ReplicaPlacement) error {
+func (s *Store) addVolume(vid VolumeId, collection string, replicaPlacement *ReplicaPlacement, ttl *TTL) error {
 	if s.findVolume(vid) != nil {
 		return fmt.Errorf("Volume Id %d already exists!", vid)
 	}
 	if location := s.findFreeLocation(); location != nil {
-		glog.V(0).Infoln("In dir", location.Directory, "adds volume =", vid, ", collection =", collection, ", replicaPlacement =", replicaPlacement)
-		if volume, err := NewVolume(location.Directory, collection, vid, replicaPlacement); err == nil {
+		glog.V(0).Infof("In dir %s adds volume:%v collection:%s replicaPlacement:%v ttl:%v",
+			location.Directory, vid, collection, replicaPlacement, ttl)
+		if volume, err := NewVolume(location.Directory, collection, vid, replicaPlacement, ttl); err == nil {
 			location.volumes[vid] = volume
 			return nil
 		} else {
@@ -190,9 +207,9 @@ func (l *DiskLocation) loadExistingVolumes() {
 				}
 				if vid, err := NewVolumeId(base); err == nil {
 					if l.volumes[vid] == nil {
-						if v, e := NewVolume(l.Directory, collection, vid, nil); e == nil {
+						if v, e := NewVolume(l.Directory, collection, vid, nil, nil); e == nil {
 							l.volumes[vid] = v
-							glog.V(0).Infoln("data file", l.Directory+"/"+name, "replicaPlacement =", v.ReplicaPlacement, "version =", v.Version(), "size =", v.Size())
+							glog.V(0).Infof("data file %s, replicaPlacement=%s v=%d size=%d ttl=%s", l.Directory+"/"+name, v.ReplicaPlacement, v.Version(), v.Size(), v.Ttl.String())
 						}
 					}
 				}
@@ -240,21 +257,31 @@ func (s *Store) Join() (masterNode string, e error) {
 	for _, location := range s.Locations {
 		maxVolumeCount = maxVolumeCount + location.MaxVolumeCount
 		for k, v := range location.volumes {
-			volumeMessage := &operation.VolumeInformationMessage{
-				Id:               proto.Uint32(uint32(k)),
-				Size:             proto.Uint64(uint64(v.Size())),
-				Collection:       proto.String(v.Collection),
-				FileCount:        proto.Uint64(uint64(v.nm.FileCount())),
-				DeleteCount:      proto.Uint64(uint64(v.nm.DeletedCount())),
-				DeletedByteCount: proto.Uint64(v.nm.DeletedSize()),
-				ReadOnly:         proto.Bool(v.readOnly),
-				ReplicaPlacement: proto.Uint32(uint32(v.ReplicaPlacement.Byte())),
-				Version:          proto.Uint32(uint32(v.Version())),
-			}
-			volumeMessages = append(volumeMessages, volumeMessage)
 			if maxFileKey < v.nm.MaxFileKey() {
 				maxFileKey = v.nm.MaxFileKey()
 			}
+			if !v.expired(s.volumeSizeLimit) {
+				volumeMessage := &operation.VolumeInformationMessage{
+					Id:               proto.Uint32(uint32(k)),
+					Size:             proto.Uint64(uint64(v.Size())),
+					Collection:       proto.String(v.Collection),
+					FileCount:        proto.Uint64(uint64(v.nm.FileCount())),
+					DeleteCount:      proto.Uint64(uint64(v.nm.DeletedCount())),
+					DeletedByteCount: proto.Uint64(v.nm.DeletedSize()),
+					ReadOnly:         proto.Bool(v.readOnly),
+					ReplicaPlacement: proto.Uint32(uint32(v.ReplicaPlacement.Byte())),
+					Version:          proto.Uint32(uint32(v.Version())),
+					Ttl:              proto.Uint32(v.Ttl.ToUint32()),
+				}
+				volumeMessages = append(volumeMessages, volumeMessage)
+			} else {
+				if v.exiredLongEnough(MAX_TTL_VOLUME_REMOVAL_DELAY) {
+					s.DeleteVolume(location.volumes, v)
+					glog.V(0).Infoln("volume", v.Id, "is deleted.")
+				} else {
+					glog.V(0).Infoln("volume", v.Id, "is expired.")
+				}
+			}
 		}
 	}
 

go/storage/volume.go

@@ -22,12 +22,13 @@ type Volume struct {
 
 	SuperBlock
 
-	accessLock sync.Mutex
+	accessLock       sync.Mutex
+	lastModifiedTime uint64 //unix time in seconds
 }
 
-func NewVolume(dirname string, collection string, id VolumeId, replicaPlacement *ReplicaPlacement) (v *Volume, e error) {
+func NewVolume(dirname string, collection string, id VolumeId, replicaPlacement *ReplicaPlacement, ttl *TTL) (v *Volume, e error) {
 	v = &Volume{dir: dirname, Collection: collection, Id: id}
-	v.SuperBlock = SuperBlock{ReplicaPlacement: replicaPlacement}
+	v.SuperBlock = SuperBlock{ReplicaPlacement: replicaPlacement, Ttl: ttl}
 	e = v.load(true, true)
 	return
 }
@@ -49,12 +50,13 @@ func (v *Volume) load(alsoLoadIndex bool, createDatIfMissing bool) error {
 	var e error
 	fileName := v.FileName()
 
-	if exists, canRead, canWrite, _ := checkFile(fileName + ".dat"); exists {
+	if exists, canRead, canWrite, modifiedTime := checkFile(fileName + ".dat"); exists {
 		if !canRead {
 			return fmt.Errorf("cannot read Volume Data file %s.dat", fileName)
 		}
 		if canWrite {
 			v.dataFile, e = os.OpenFile(fileName+".dat", os.O_RDWR|os.O_CREATE, 0644)
+			v.lastModifiedTime = uint64(modifiedTime.Unix())
 		} else {
 			glog.V(0).Infoln("opening " + fileName + ".dat in READONLY mode")
 			v.dataFile, e = os.Open(fileName + ".dat")
@@ -192,6 +194,9 @@ func (v *Volume) write(n *Needle) (size uint32, err error) {
 			glog.V(4).Infof("failed to save in needle map %d: %s", n.Id, err.Error())
 		}
 	}
+	if v.lastModifiedTime < n.LastModified {
+		v.lastModifiedTime = n.LastModified
+	}
 	return
 }
 
@@ -221,8 +226,25 @@ func (v *Volume) delete(n *Needle) (uint32, error) {
 
 func (v *Volume) read(n *Needle) (int, error) {
 	nv, ok := v.nm.Get(n.Id)
-	if ok && nv.Offset > 0 {
-		return n.Read(v.dataFile, int64(nv.Offset)*NeedlePaddingSize, nv.Size, v.Version())
+	if !ok || nv.Offset == 0 {
+		return -1, errors.New("Not Found")
+	}
+	bytesRead, err := n.Read(v.dataFile, int64(nv.Offset)*NeedlePaddingSize, nv.Size, v.Version())
+	if err != nil {
+		return bytesRead, err
+	}
+	if !n.HasTtl() {
+		return bytesRead, err
+	}
+	ttlMinutes := n.Ttl.Minutes()
+	if ttlMinutes == 0 {
+		return bytesRead, nil
+	}
+	if !n.HasLastModifiedDate() {
+		return bytesRead, nil
+	}
+	if uint64(time.Now().Unix()) < n.LastModified+uint64(ttlMinutes*60) {
+		return bytesRead, nil
 	}
 	return -1, errors.New("Not Found")
 }
@@ -343,3 +365,43 @@ func (v *Volume) ensureConvertIdxToCdb(fileName string) (cdbCanRead bool) {
 	}
 	return true
 }
+
+// volume is expired if modified time + volume ttl < now
+// except when volume is empty
+// or when the volume does not have a ttl
+// or when volumeSizeLimit is 0 when server just starts
+func (v *Volume) expired(volumeSizeLimit uint64) bool {
+	if volumeSizeLimit == 0 {
+		//skip if we don't know size limit
+		return false
+	}
+	if v.ContentSize() == 0 {
+		return false
+	}
+	if v.Ttl == nil || v.Ttl.Minutes() == 0 {
+		return false
+	}
+	glog.V(0).Infof("now:%v lastModified:%v", time.Now().Unix(), v.lastModifiedTime)
+	livedMinutes := (time.Now().Unix() - int64(v.lastModifiedTime)) / 60
+	glog.V(0).Infof("ttl:%v lived:%v", v.Ttl, livedMinutes)
+	if int64(v.Ttl.Minutes()) < livedMinutes {
+		return true
+	}
+	return false
+}
+
+// wait either maxDelayMinutes or 10% of ttl minutes
+func (v *Volume) exiredLongEnough(maxDelayMinutes uint32) bool {
+	if v.Ttl == nil || v.Ttl.Minutes() == 0 {
+		return false
+	}
+	removalDelay := v.Ttl.Minutes() / 10
+	if removalDelay > maxDelayMinutes {
+		removalDelay = maxDelayMinutes
+	}
+
+	if uint64(v.Ttl.Minutes()+removalDelay)*60+v.lastModifiedTime < uint64(time.Now().Unix()) {
+		return true
+	}
+	return false
+}

go/storage/volume_info.go

@@ -8,6 +8,7 @@ type VolumeInfo struct {
 	Id               VolumeId
 	Size             uint64
 	ReplicaPlacement *ReplicaPlacement
+	Ttl              *TTL
 	Collection       string
 	Version          Version
 	FileCount        int
@@ -32,5 +33,6 @@ func NewVolumeInfo(m *operation.VolumeInformationMessage) (vi VolumeInfo, err er
 		return vi, e
 	}
 	vi.ReplicaPlacement = rp
+	vi.Ttl = LoadTTLFromUint32(*m.Ttl)
 	return vi, nil
 }

go/storage/volume_super_block.go

@@ -2,7 +2,6 @@ package storage
 
 import (
 	"code.google.com/p/weed-fs/go/glog"
-	"code.google.com/p/weed-fs/go/util"
 	"fmt"
 	"os"
 )
@@ -15,12 +14,13 @@ const (
 * Super block currently has 8 bytes allocated for each volume.
 * Byte 0: version, 1 or 2
 * Byte 1: Replica Placement strategy, 000, 001, 002, 010, etc
-* Byte 2 and byte 3: Time to live in minutes
+* Byte 2 and byte 3: Time to live. See TTL for definition
+* Rest bytes: Reserved
  */
 type SuperBlock struct {
 	version          Version
 	ReplicaPlacement *ReplicaPlacement
-	Ttl              uint16
+	Ttl              *TTL
 }
 
 func (s *SuperBlock) Version() Version {
@@ -30,7 +30,7 @@ func (s *SuperBlock) Bytes() []byte {
 	header := make([]byte, SuperBlockSize)
 	header[0] = byte(s.version)
 	header[1] = s.ReplicaPlacement.Byte()
-	util.Uint16toBytes(header[2:4], s.Ttl)
+	s.Ttl.ToBytes(header[2:4])
 	return header
 }
 
@@ -70,6 +70,6 @@ func ParseSuperBlock(header []byte) (superBlock SuperBlock, err error) {
 	if superBlock.ReplicaPlacement, err = NewReplicaPlacementFromByte(header[1]); err != nil {
 		err = fmt.Errorf("cannot read replica type: %s", err.Error())
 	}
-	superBlock.Ttl = util.BytesToUint16(header[2:4])
+	superBlock.Ttl = LoadTTLFromBytes(header[2:4])
 	return
 }

go/storage/volume_super_block_test.go

@@ -6,16 +6,17 @@ import (
 
 func TestSuperBlockReadWrite(t *testing.T) {
 	rp, _ := NewReplicaPlacementFromByte(byte(001))
+	ttl, _ := ReadTTL("15d")
 	s := &SuperBlock{
 		version:          CurrentVersion,
 		ReplicaPlacement: rp,
-		Ttl:              uint16(35),
+		Ttl:              ttl,
 	}
 
 	bytes := s.Bytes()
 
-	if !(bytes[2] == 0 && bytes[3] == 35) {
-	  println("byte[2]:", bytes[2], "byte[3]:", bytes[3])
+	if !(bytes[2] == 15 && bytes[3] == Day) {
+		println("byte[2]:", bytes[2], "byte[3]:", bytes[3])
 		t.Fail()
 	}
 

go/storage/volume_ttl.go

@@ -0,0 +1,147 @@
+package storage
+
+import (
+	"strconv"
+)
+
+var (
+	TtlRange []uint16
+)
+
+const (
+	//stored unit types
+	Empty byte = iota
+	Minute
+	Hour
+	Day
+	Week
+	Month
+	Year
+)
+
+func init() {
+	TtlRange = []uint16{3, 10, 30,
+		60 /*1 hour*/, 60 * 3, 60 * 6, 60 * 12,
+		1440 /*1 day*/, 1440 * 3, 1440 * 7, 1440 * 15, 1440 * 31,
+		44888 /*1 month*/, 65535,
+	}
+}
+
+type TTL struct {
+	count byte
+	unit  byte
+}
+
+var EMPTY_TTL = &TTL{}
+
+// translate a readable ttl to internal ttl
+// Supports format example:
+// 3m: 3 minutes
+// 4h: 4 hours
+// 5d: 5 days
+// 6w: 6 weeks
+// 7M: 7 months
+// 8y: 8 years
+func ReadTTL(ttlString string) (*TTL, error) {
+	if ttlString == "" {
+		return EMPTY_TTL, nil
+	}
+	ttlBytes := []byte(ttlString)
+	unitByte := ttlBytes[len(ttlBytes)-1]
+	countBytes := ttlBytes[0 : len(ttlBytes)-1]
+	if '0' <= unitByte && unitByte <= '9' {
+		countBytes = ttlBytes
+		unitByte = 'm'
+	}
+	count, err := strconv.Atoi(string(countBytes))
+	unit := toStoredByte(unitByte)
+	return &TTL{count: byte(count), unit: unit}, err
+}
+
+// read stored bytes to a ttl
+func LoadTTLFromBytes(input []byte) (t *TTL) {
+	return &TTL{count: input[0], unit: input[1]}
+}
+
+// read stored bytes to a ttl
+func LoadTTLFromUint32(ttl uint32) (t *TTL) {
+	input := make([]byte, 2)
+	input[1] = byte(ttl)
+	input[0] = byte(ttl >> 8)
+	return LoadTTLFromBytes(input)
+}
+
+// save stored bytes to an output with 2 bytes
+func (t TTL) ToBytes(output []byte) {
+	output[0] = t.count
+	output[1] = t.unit
+}
+
+func (t TTL) ToUint32() (output uint32) {
+	output = uint32(t.count) << 8
+	output += uint32(t.unit)
+	return output
+}
+
+func (t TTL) String() string {
+	if t.count == 0 {
+		return ""
+	}
+	if t.unit == Empty {
+		return ""
+	}
+	countString := strconv.Itoa(int(t.count))
+	switch t.unit {
+	case Minute:
+		return countString + "m"
+	case Hour:
+		return countString + "h"
+	case Day:
+		return countString + "d"
+	case Week:
+		return countString + "w"
+	case Month:
+		return countString + "M"
+	case Year:
+		return countString + "y"
+	}
+	return ""
+}
+
+func toStoredByte(readableUnitByte byte) byte {
+	switch readableUnitByte {
+	case 'm':
+		return Minute
+	case 'h':
+		return Hour
+	case 'd':
+		return Day
+	case 'w':
+		return Week
+	case 'M':
+		return Month
+	case 'Y':
+		return Year
+	}
+	return 0
+}
+
+func (t TTL) Minutes() uint32 {
+	switch t.unit {
+	case Empty:
+		return 0
+	case Minute:
+		return uint32(t.count)
+	case Hour:
+		return uint32(t.count) * 60
+	case Day:
+		return uint32(t.count) * 60 * 24
+	case Week:
+		return uint32(t.count) * 60 * 24 * 7
+	case Month:
+		return uint32(t.count) * 60 * 24 * 31
+	case Year:
+		return uint32(t.count) * 60 * 24 * 31 * 365
+	}
+	return 0
+}

go/storage/volume_vacuum.go

@@ -4,7 +4,7 @@ import (
 	"code.google.com/p/weed-fs/go/glog"
 	"fmt"
 	"os"
-	_ "time"
+	"time"
 )
 
 func (v *Volume) garbageLevel() float64 {
@@ -13,9 +13,10 @@ func (v *Volume) garbageLevel() float64 {
 
 func (v *Volume) Compact() error {
 	glog.V(3).Infof("Compacting ...")
-	v.accessLock.Lock()
-	defer v.accessLock.Unlock()
-	glog.V(3).Infof("Got Compaction lock...")
+	//no need to lock for copy on write
+	//v.accessLock.Lock()
+	//defer v.accessLock.Unlock()
+	//glog.V(3).Infof("Got Compaction lock...")
 
 	filePath := v.FileName()
 	glog.V(3).Infof("creating copies for volume %d ...", v.Id)
@@ -59,10 +60,15 @@ func (v *Volume) copyDataAndGenerateIndexFile(dstName, idxName string) (err erro
 	nm := NewNeedleMap(idx)
 	new_offset := int64(SuperBlockSize)
 
+	now := uint64(time.Now().Unix())
+
 	err = ScanVolumeFile(v.dir, v.Collection, v.Id, func(superBlock SuperBlock) error {
 		_, err = dst.Write(superBlock.Bytes())
 		return err
 	}, true, func(n *Needle, offset int64) error {
+		if n.HasTtl() && now >= n.LastModified+uint64(v.Ttl.Minutes()*60) {
+			return nil
+		}
 		nv, ok := v.nm.Get(n.Id)
 		glog.V(4).Infoln("needle expected offset ", offset, "ok", ok, "nv", nv)
 		if ok && int64(nv.Offset)*NeedlePaddingSize == offset && nv.Size > 0 {

go/topology/allocate_volume.go

@@ -12,11 +12,12 @@ type AllocateVolumeResult struct {
 	Error string
 }
 
-func AllocateVolume(dn *DataNode, vid storage.VolumeId, collection string, rp *storage.ReplicaPlacement) error {
+func AllocateVolume(dn *DataNode, vid storage.VolumeId, option *VolumeGrowOption) error {
 	values := make(url.Values)
 	values.Add("volume", vid.String())
-	values.Add("collection", collection)
-	values.Add("replication", rp.String())
+	values.Add("collection", option.Collection)
+	values.Add("replication", option.ReplicaPlacement.String())
+	values.Add("ttl", option.Ttl.String())
 	jsonBlob, err := util.Post("http://"+dn.PublicUrl+"/admin/assign_volume", values)
 	if err != nil {
 		return err

go/topology/collection.go

@@ -1,33 +1,34 @@
 package topology
 
 import (
-	"code.google.com/p/weed-fs/go/glog"
 	"code.google.com/p/weed-fs/go/storage"
 )
 
 type Collection struct {
 	Name                     string
 	volumeSizeLimit          uint64
-	replicaType2VolumeLayout []*VolumeLayout
+	storageType2VolumeLayout map[string]*VolumeLayout
 }
 
 func NewCollection(name string, volumeSizeLimit uint64) *Collection {
 	c := &Collection{Name: name, volumeSizeLimit: volumeSizeLimit}
-	c.replicaType2VolumeLayout = make([]*VolumeLayout, storage.ReplicaPlacementCount)
+	c.storageType2VolumeLayout = make(map[string]*VolumeLayout)
 	return c
 }
 
-func (c *Collection) GetOrCreateVolumeLayout(rp *storage.ReplicaPlacement) *VolumeLayout {
-	replicaPlacementIndex := rp.GetReplicationLevelIndex()
-	if c.replicaType2VolumeLayout[replicaPlacementIndex] == nil {
-		glog.V(0).Infoln("collection", c.Name, "adding replication type", rp)
-		c.replicaType2VolumeLayout[replicaPlacementIndex] = NewVolumeLayout(rp, c.volumeSizeLimit)
+func (c *Collection) GetOrCreateVolumeLayout(rp *storage.ReplicaPlacement, ttl *storage.TTL) *VolumeLayout {
+	keyString := rp.String()
+	if ttl != nil {
+		keyString += ttl.String()
 	}
-	return c.replicaType2VolumeLayout[replicaPlacementIndex]
+	if c.storageType2VolumeLayout[keyString] == nil {
+		c.storageType2VolumeLayout[keyString] = NewVolumeLayout(rp, ttl, c.volumeSizeLimit)
+	}
+	return c.storageType2VolumeLayout[keyString]
 }
 
 func (c *Collection) Lookup(vid storage.VolumeId) []*DataNode {
-	for _, vl := range c.replicaType2VolumeLayout {
+	for _, vl := range c.storageType2VolumeLayout {
 		if vl != nil {
 			if list := vl.Lookup(vid); list != nil {
 				return list
@@ -38,7 +39,7 @@ func (c *Collection) Lookup(vid storage.VolumeId) []*DataNode {
 }
 
 func (c *Collection) ListVolumeServers() (nodes []*DataNode) {
-	for _, vl := range c.replicaType2VolumeLayout {
+	for _, vl := range c.storageType2VolumeLayout {
 		if vl != nil {
 			if list := vl.ListVolumeServers(); list != nil {
 				nodes = append(nodes, list...)

go/topology/data_node.go

@@ -38,15 +38,16 @@ func (dn *DataNode) AddOrUpdateVolume(v storage.VolumeInfo) {
 	}
 }
 
-func (dn *DataNode) UpdateVolumes(actualVolumes []storage.VolumeInfo) {
+func (dn *DataNode) UpdateVolumes(actualVolumes []storage.VolumeInfo) (deletedVolumes []storage.VolumeInfo) {
 	actualVolumeMap := make(map[storage.VolumeId]storage.VolumeInfo)
 	for _, v := range actualVolumes {
 		actualVolumeMap[v.Id] = v
 	}
-	for vid, _ := range dn.volumes {
+	for vid, v := range dn.volumes {
 		if _, ok := actualVolumeMap[vid]; !ok {
 			glog.V(0).Infoln("Deleting volume id:", vid)
 			delete(dn.volumes, vid)
+			deletedVolumes = append(deletedVolumes, v)
 			dn.UpAdjustVolumeCountDelta(-1)
 			dn.UpAdjustActiveVolumeCountDelta(-1)
 		}
@@ -54,6 +55,7 @@ func (dn *DataNode) UpdateVolumes(actualVolumes []storage.VolumeInfo) {
 	for _, v := range actualVolumes {
 		dn.AddOrUpdateVolume(v)
 	}
+	return
 }
 
 func (dn *DataNode) GetDataCenter() *DataCenter {

go/topology/topology.go

@@ -110,12 +110,12 @@ func (t *Topology) NextVolumeId() storage.VolumeId {
 }
 
 func (t *Topology) HasWriableVolume(option *VolumeGrowOption) bool {
-	vl := t.GetVolumeLayout(option.Collection, option.ReplicaPlacement)
+	vl := t.GetVolumeLayout(option.Collection, option.ReplicaPlacement, option.Ttl)
 	return vl.GetActiveVolumeCount(option) > 0
 }
 
 func (t *Topology) PickForWrite(count int, option *VolumeGrowOption) (string, int, *DataNode, error) {
-	vid, count, datanodes, err := t.GetVolumeLayout(option.Collection, option.ReplicaPlacement).PickForWrite(count, option)
+	vid, count, datanodes, err := t.GetVolumeLayout(option.Collection, option.ReplicaPlacement, option.Ttl).PickForWrite(count, option)
 	if err != nil || datanodes.Length() == 0 {
 		return "", 0, nil, errors.New("No writable volumes avalable!")
 	}
@@ -123,12 +123,12 @@ func (t *Topology) PickForWrite(count int, option *VolumeGrowOption) (string, in
 	return storage.NewFileId(*vid, fileId, rand.Uint32()).String(), count, datanodes.Head(), nil
 }
 
-func (t *Topology) GetVolumeLayout(collectionName string, rp *storage.ReplicaPlacement) *VolumeLayout {
+func (t *Topology) GetVolumeLayout(collectionName string, rp *storage.ReplicaPlacement, ttl *storage.TTL) *VolumeLayout {
 	_, ok := t.collectionMap[collectionName]
 	if !ok {
 		t.collectionMap[collectionName] = NewCollection(collectionName, t.volumeSizeLimit)
 	}
-	return t.collectionMap[collectionName].GetOrCreateVolumeLayout(rp)
+	return t.collectionMap[collectionName].GetOrCreateVolumeLayout(rp, ttl)
 }
 
 func (t *Topology) GetCollection(collectionName string) (collection *Collection, ok bool) {
@@ -141,10 +141,14 @@ func (t *Topology) DeleteCollection(collectionName string) {
 }
 
 func (t *Topology) RegisterVolumeLayout(v storage.VolumeInfo, dn *DataNode) {
-	t.GetVolumeLayout(v.Collection, v.ReplicaPlacement).RegisterVolume(&v, dn)
+	t.GetVolumeLayout(v.Collection, v.ReplicaPlacement, v.Ttl).RegisterVolume(&v, dn)
+}
+func (t *Topology) UnRegisterVolumeLayout(v storage.VolumeInfo, dn *DataNode) {
+	glog.Infof("removing volume info:%+v", v)
+	t.GetVolumeLayout(v.Collection, v.ReplicaPlacement, v.Ttl).UnRegisterVolume(&v, dn)
 }
 
-func (t *Topology) RegisterVolumes(joinMessage *operation.JoinMessage) {
+func (t *Topology) ProcessJoinMessage(joinMessage *operation.JoinMessage) {
 	t.Sequence.SetMax(*joinMessage.MaxFileKey)
 	dcName, rackName := t.configuration.Locate(*joinMessage.Ip, *joinMessage.DataCenter, *joinMessage.Rack)
 	dc := t.GetOrCreateDataCenter(dcName)
@@ -162,10 +166,13 @@ func (t *Topology) RegisterVolumes(joinMessage *operation.JoinMessage) {
 			glog.V(0).Infoln("Fail to convert joined volume information:", err.Error())
 		}
 	}
-	dn.UpdateVolumes(volumeInfos)
+	deletedVolumes := dn.UpdateVolumes(volumeInfos)
 	for _, v := range volumeInfos {
 		t.RegisterVolumeLayout(v, dn)
 	}
+	for _, v := range deletedVolumes {
+		t.UnRegisterVolumeLayout(v, dn)
+	}
 }
 
 func (t *Topology) GetOrCreateDataCenter(dcName string) *DataCenter {

go/topology/topology_event_handling.go

@@ -41,7 +41,7 @@ func (t *Topology) StartRefreshWritableVolumes(garbageThreshold string) {
 	}()
 }
 func (t *Topology) SetVolumeCapacityFull(volumeInfo storage.VolumeInfo) bool {
-	vl := t.GetVolumeLayout(volumeInfo.Collection, volumeInfo.ReplicaPlacement)
+	vl := t.GetVolumeLayout(volumeInfo.Collection, volumeInfo.ReplicaPlacement, volumeInfo.Ttl)
 	if !vl.SetVolumeCapacityFull(volumeInfo.Id) {
 		return false
 	}
@@ -55,7 +55,7 @@ func (t *Topology) SetVolumeCapacityFull(volumeInfo storage.VolumeInfo) bool {
 func (t *Topology) UnRegisterDataNode(dn *DataNode) {
 	for _, v := range dn.volumes {
 		glog.V(0).Infoln("Removing Volume", v.Id, "from the dead volume server", dn)
-		vl := t.GetVolumeLayout(v.Collection, v.ReplicaPlacement)
+		vl := t.GetVolumeLayout(v.Collection, v.ReplicaPlacement, v.Ttl)
 		vl.SetVolumeUnavailable(dn, v.Id)
 	}
 	dn.UpAdjustVolumeCountDelta(-dn.GetVolumeCount())
@@ -65,7 +65,7 @@ func (t *Topology) UnRegisterDataNode(dn *DataNode) {
 }
 func (t *Topology) RegisterRecoveredDataNode(dn *DataNode) {
 	for _, v := range dn.volumes {
-		vl := t.GetVolumeLayout(v.Collection, v.ReplicaPlacement)
+		vl := t.GetVolumeLayout(v.Collection, v.ReplicaPlacement, v.Ttl)
 		if vl.isWritable(&v) {
 			vl.SetVolumeAvailable(dn, v.Id)
 		}

go/topology/topology_map.go

@@ -14,7 +14,7 @@ func (t *Topology) ToMap() interface{} {
 	m["DataCenters"] = dcs
 	var layouts []interface{}
 	for _, c := range t.collectionMap {
-		for _, layout := range c.replicaType2VolumeLayout {
+		for _, layout := range c.storageType2VolumeLayout {
 			if layout != nil {
 				tmp := layout.ToMap()
 				tmp["collection"] = c.Name

go/topology/topology_vacuum.go

@@ -80,7 +80,7 @@ func batchVacuumVolumeCommit(vl *VolumeLayout, vid storage.VolumeId, locationlis
 }
 func (t *Topology) Vacuum(garbageThreshold string) int {
 	for _, c := range t.collectionMap {
-		for _, vl := range c.replicaType2VolumeLayout {
+		for _, vl := range c.storageType2VolumeLayout {
 			if vl != nil {
 				for vid, locationlist := range vl.vid2location {
 					if batchVacuumVolumeCheck(vl, vid, locationlist, garbageThreshold) {

go/topology/volume_growth.go

@@ -19,6 +19,7 @@ This package is created to resolve these replica placement issues:
 type VolumeGrowOption struct {
 	Collection       string
 	ReplicaPlacement *storage.ReplicaPlacement
+	Ttl              *storage.TTL
 	DataCenter       string
 	Rack             string
 	DataNode         string
@@ -184,8 +185,15 @@ func (vg *VolumeGrowth) findEmptySlotsForOneVolume(topo *Topology, option *Volum
 
 func (vg *VolumeGrowth) grow(topo *Topology, vid storage.VolumeId, option *VolumeGrowOption, servers ...*DataNode) error {
 	for _, server := range servers {
-		if err := AllocateVolume(server, vid, option.Collection, option.ReplicaPlacement); err == nil {
-			vi := storage.VolumeInfo{Id: vid, Size: 0, Collection: option.Collection, ReplicaPlacement: option.ReplicaPlacement, Version: storage.CurrentVersion}
+		if err := AllocateVolume(server, vid, option); err == nil {
+			vi := storage.VolumeInfo{
+				Id:               vid,
+				Size:             0,
+				Collection:       option.Collection,
+				ReplicaPlacement: option.ReplicaPlacement,
+				Ttl:              option.Ttl,
+				Version:          storage.CurrentVersion,
+			}
 			server.AddOrUpdateVolume(vi)
 			topo.RegisterVolumeLayout(vi, server)
 			glog.V(0).Infoln("Created Volume", vid, "on", server)

go/topology/volume_layout.go

@@ -11,15 +11,17 @@ import (
 // mapping from volume to its locations, inverted from server to volume
 type VolumeLayout struct {
 	rp              *storage.ReplicaPlacement
+	ttl             *storage.TTL
 	vid2location    map[storage.VolumeId]*VolumeLocationList
 	writables       []storage.VolumeId // transient array of writable volume id
 	volumeSizeLimit uint64
 	accessLock      sync.Mutex
 }
 
-func NewVolumeLayout(rp *storage.ReplicaPlacement, volumeSizeLimit uint64) *VolumeLayout {
+func NewVolumeLayout(rp *storage.ReplicaPlacement, ttl *storage.TTL, volumeSizeLimit uint64) *VolumeLayout {
 	return &VolumeLayout{
 		rp:              rp,
+		ttl:             ttl,
 		vid2location:    make(map[storage.VolumeId]*VolumeLocationList),
 		writables:       *new([]storage.VolumeId),
 		volumeSizeLimit: volumeSizeLimit,
@@ -42,6 +44,14 @@ func (vl *VolumeLayout) RegisterVolume(v *storage.VolumeInfo, dn *DataNode) {
 	}
 }
 
+func (vl *VolumeLayout) UnRegisterVolume(v *storage.VolumeInfo, dn *DataNode) {
+	vl.accessLock.Lock()
+	defer vl.accessLock.Unlock()
+
+	vl.removeFromWritable(v.Id)
+	delete(vl.vid2location, v.Id)
+}
+
 func (vl *VolumeLayout) AddToWritable(vid storage.VolumeId) {
 	for _, id := range vl.writables {
 		if vid == id {
@@ -192,6 +202,7 @@ func (vl *VolumeLayout) SetVolumeCapacityFull(vid storage.VolumeId) bool {
 func (vl *VolumeLayout) ToMap() map[string]interface{} {
 	m := make(map[string]interface{})
 	m["replication"] = vl.rp.String()
+	m["ttl"] = vl.ttl.String()
 	m["writables"] = vl.writables
 	//m["locations"] = vl.vid2location
 	return m

go/weed/benchmark.go

@@ -201,7 +201,7 @@ func writeFiles(idChan chan int, fileIdLineChan chan string, s *stats) {
 			start := time.Now()
 			fileSize := int64(*b.fileSize + rand.Intn(64))
 			fp := &operation.FilePart{Reader: &FakeReader{id: uint64(id), size: fileSize}, FileSize: fileSize}
-			if assignResult, err := operation.Assign(*b.server, 1, "", *b.collection); err == nil {
+			if assignResult, err := operation.Assign(*b.server, 1, "", *b.collection, ""); err == nil {
 				fp.Server, fp.Fid, fp.Collection = assignResult.PublicUrl, assignResult.Fid, *b.collection
 				if _, ok := serverLimitChan[fp.Server]; !ok {
 					serverLimitChan[fp.Server] = make(chan bool, 7)

go/weed/compact.go

@@ -33,7 +33,7 @@ func runCompact(cmd *Command, args []string) bool {
 	}
 
 	vid := storage.VolumeId(*compactVolumeId)
-	v, err := storage.NewVolume(*compactVolumePath, *compactVolumeCollection, vid, nil)
+	v, err := storage.NewVolume(*compactVolumePath, *compactVolumeCollection, vid, nil, nil)
 	if err != nil {
 		glog.Fatalf("Load Volume [ERROR] %s\n", err)
 	}

go/weed/upload.go

@@ -12,6 +12,7 @@ var (
 	uploadReplication *string
 	uploadCollection  *string
 	uploadDir         *string
+	uploadTtl         *string
 	include           *string
 	maxMB             *int
 )
@@ -24,6 +25,7 @@ func init() {
 	include = cmdUpload.Flag.String("include", "", "pattens of files to upload, e.g., *.pdf, *.html, ab?d.txt, works together with -dir")
 	uploadReplication = cmdUpload.Flag.String("replication", "", "replication type")
 	uploadCollection = cmdUpload.Flag.String("collection", "", "optional collection name")
+	uploadTtl = cmdUpload.Flag.String("ttl", "", "time to live, e.g.: 1m, 1h, 1d, 1M, 1y")
 	maxMB = cmdUpload.Flag.Int("maxMB", 0, "split files larger than the limit")
 }
 
@@ -67,7 +69,7 @@ func runUpload(cmd *Command, args []string) bool {
 					if e != nil {
 						return e
 					}
-					results, e := operation.SubmitFiles(*server, parts, *uploadReplication, *uploadCollection, *maxMB)
+					results, e := operation.SubmitFiles(*server, parts, *uploadReplication, *uploadCollection, *uploadTtl, *maxMB)
 					bytes, _ := json.Marshal(results)
 					fmt.Println(string(bytes))
 					if e != nil {
@@ -84,7 +86,7 @@ func runUpload(cmd *Command, args []string) bool {
 		if e != nil {
 			fmt.Println(e.Error())
 		}
-		results, _ := operation.SubmitFiles(*server, parts, *uploadReplication, *uploadCollection, *maxMB)
+		results, _ := operation.SubmitFiles(*server, parts, *uploadReplication, *uploadCollection, *uploadTtl, *maxMB)
 		bytes, _ := json.Marshal(results)
 		fmt.Println(string(bytes))
 	}

go/weed/weed_server/common.go

@@ -99,14 +99,14 @@ func submitForClientHandler(w http.ResponseWriter, r *http.Request, masterUrl st
 	}
 
 	debug("parsing upload file...")
-	fname, data, mimeType, isGzipped, lastModified, pe := storage.ParseUpload(r)
+	fname, data, mimeType, isGzipped, lastModified, _, pe := storage.ParseUpload(r)
 	if pe != nil {
 		writeJsonError(w, r, pe)
 		return
 	}
 
 	debug("assigning file id for", fname)
-	assignResult, ae := operation.Assign(masterUrl, 1, r.FormValue("replication"), r.FormValue("collection"))
+	assignResult, ae := operation.Assign(masterUrl, 1, r.FormValue("replication"), r.FormValue("collection"), r.FormValue("ttl"))
 	if ae != nil {
 		writeJsonError(w, r, ae)
 		return

go/weed/weed_server/filer_server_handlers.go

@@ -109,7 +109,7 @@ func (fs *FilerServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request,
 
 func (fs *FilerServer) PostHandler(w http.ResponseWriter, r *http.Request) {
 	query := r.URL.Query()
-	assignResult, ae := operation.Assign(fs.master, 1, query.Get("replication"), fs.collection)
+	assignResult, ae := operation.Assign(fs.master, 1, query.Get("replication"), fs.collection, query.Get("ttl"))
 	if ae != nil {
 		glog.V(0).Infoln("failing to assign a file id", ae.Error())
 		writeJsonError(w, r, ae)
@@ -131,14 +131,14 @@ func (fs *FilerServer) PostHandler(w http.ResponseWriter, r *http.Request) {
 	}
 	resp, do_err := util.Do(request)
 	if do_err != nil {
-		glog.V(0).Infoln("failing to connect to volume server", do_err.Error())
+		glog.V(0).Infoln("failing to connect to volume server", r.RequestURI, do_err.Error())
 		writeJsonError(w, r, do_err)
 		return
 	}
 	defer resp.Body.Close()
 	resp_body, ra_err := ioutil.ReadAll(resp.Body)
 	if ra_err != nil {
-		glog.V(0).Infoln("failing to upload to volume server", ra_err.Error())
+		glog.V(0).Infoln("failing to upload to volume server", r.RequestURI, ra_err.Error())
 		writeJsonError(w, r, ra_err)
 		return
 	}
@@ -146,12 +146,12 @@ func (fs *FilerServer) PostHandler(w http.ResponseWriter, r *http.Request) {
 	var ret operation.UploadResult
 	unmarshal_err := json.Unmarshal(resp_body, &ret)
 	if unmarshal_err != nil {
-		glog.V(0).Infoln("failing to read upload resonse", string(resp_body))
+		glog.V(0).Infoln("failing to read upload resonse", r.RequestURI, string(resp_body))
 		writeJsonError(w, r, unmarshal_err)
 		return
 	}
 	if ret.Error != "" {
-		glog.V(0).Infoln("failing to post to volume server", ret.Error)
+		glog.V(0).Infoln("failing to post to volume server", r.RequestURI, ret.Error)
 		writeJsonError(w, r, errors.New(ret.Error))
 		return
 	}
@@ -169,7 +169,7 @@ func (fs *FilerServer) PostHandler(w http.ResponseWriter, r *http.Request) {
 	glog.V(4).Infoln("saving", path, "=>", assignResult.Fid)
 	if db_err := fs.filer.CreateFile(path, assignResult.Fid); db_err != nil {
 		operation.DeleteFile(fs.master, assignResult.Fid) //clean up
-		glog.V(0).Infoln("failing to write to filer server", db_err.Error())
+		glog.V(0).Infoln("failing to write to filer server", r.RequestURI, db_err.Error())
 		writeJsonError(w, r, db_err)
 		return
 	}

go/weed/weed_server/master_server_handlers_admin.go

@@ -55,7 +55,7 @@ func (ms *MasterServer) dirJoinHandler(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	ms.Topo.RegisterVolumes(joinMessage)
+	ms.Topo.ProcessJoinMessage(joinMessage)
 	writeJsonQuiet(w, r, operation.JoinResult{VolumeSizeLimit: uint64(ms.volumeSizeLimitMB) * 1024 * 1024})
 }
 
@@ -144,7 +144,7 @@ func (ms *MasterServer) deleteFromMasterServerHandler(w http.ResponseWriter, r *
 }
 
 func (ms *MasterServer) hasWriableVolume(option *topology.VolumeGrowOption) bool {
-	vl := ms.Topo.GetVolumeLayout(option.Collection, option.ReplicaPlacement)
+	vl := ms.Topo.GetVolumeLayout(option.Collection, option.ReplicaPlacement, option.Ttl)
 	return vl.GetActiveVolumeCount(option) > 0
 }
 
@@ -157,9 +157,14 @@ func (ms *MasterServer) getVolumeGrowOption(r *http.Request) (*topology.VolumeGr
 	if err != nil {
 		return nil, err
 	}
+	ttl, err := storage.ReadTTL(r.FormValue("ttl"))
+	if err != nil {
+		return nil, err
+	}
 	volumeGrowOption := &topology.VolumeGrowOption{
 		Collection:       r.FormValue("collection"),
 		ReplicaPlacement: replicaPlacement,
+		Ttl:              ttl,
 		DataCenter:       r.FormValue("dataCenter"),
 		Rack:             r.FormValue("rack"),
 		DataNode:         r.FormValue("dataNode"),

go/weed/weed_server/volume_server_handlers_admin.go

@@ -16,7 +16,7 @@ func (vs *VolumeServer) statusHandler(w http.ResponseWriter, r *http.Request) {
 }
 
 func (vs *VolumeServer) assignVolumeHandler(w http.ResponseWriter, r *http.Request) {
-	err := vs.store.AddVolume(r.FormValue("volume"), r.FormValue("collection"), r.FormValue("replication"))
+	err := vs.store.AddVolume(r.FormValue("volume"), r.FormValue("collection"), r.FormValue("replication"), r.FormValue("ttl"))
 	if err == nil {
 		writeJsonQuiet(w, r, map[string]string{"error": ""})
 	} else {