mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
319 lines
9.5 KiB
Go
319 lines
9.5 KiB
Go
package storage
|
|
|
|
import (
|
|
"fmt"
|
|
"sync/atomic"
|
|
|
|
"github.com/chrislusf/seaweedfs/weed/glog"
|
|
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
|
|
"github.com/chrislusf/seaweedfs/weed/storage/needle"
|
|
. "github.com/chrislusf/seaweedfs/weed/storage/types"
|
|
"google.golang.org/grpc"
|
|
)
|
|
|
|
const (
|
|
MAX_TTL_VOLUME_REMOVAL_DELAY = 10 // 10 minutes
|
|
)
|
|
|
|
/*
|
|
* A VolumeServer contains one Store
|
|
*/
|
|
type Store struct {
|
|
MasterAddress string
|
|
grpcDialOption grpc.DialOption
|
|
volumeSizeLimit uint64 //read from the master
|
|
Ip string
|
|
Port int
|
|
PublicUrl string
|
|
Locations []*DiskLocation
|
|
dataCenter string //optional informaton, overwriting master setting if exists
|
|
rack string //optional information, overwriting master setting if exists
|
|
connected bool
|
|
NeedleMapType NeedleMapType
|
|
NewVolumesChan chan master_pb.VolumeShortInformationMessage
|
|
DeletedVolumesChan chan master_pb.VolumeShortInformationMessage
|
|
NewEcShardsChan chan master_pb.VolumeEcShardInformationMessage
|
|
DeletedEcShardsChan chan master_pb.VolumeEcShardInformationMessage
|
|
}
|
|
|
|
func (s *Store) String() (str string) {
|
|
str = fmt.Sprintf("Ip:%s, Port:%d, PublicUrl:%s, dataCenter:%s, rack:%s, connected:%v, volumeSizeLimit:%d", s.Ip, s.Port, s.PublicUrl, s.dataCenter, s.rack, s.connected, s.GetVolumeSizeLimit())
|
|
return
|
|
}
|
|
|
|
func NewStore(grpcDialOption grpc.DialOption, port int, ip, publicUrl string, dirnames []string, maxVolumeCounts []int, needleMapKind NeedleMapType) (s *Store) {
|
|
s = &Store{grpcDialOption: grpcDialOption, Port: port, Ip: ip, PublicUrl: publicUrl, NeedleMapType: needleMapKind}
|
|
s.Locations = make([]*DiskLocation, 0)
|
|
for i := 0; i < len(dirnames); i++ {
|
|
location := NewDiskLocation(dirnames[i], maxVolumeCounts[i])
|
|
location.loadExistingVolumes(needleMapKind)
|
|
s.Locations = append(s.Locations, location)
|
|
}
|
|
s.NewVolumesChan = make(chan master_pb.VolumeShortInformationMessage, 3)
|
|
s.DeletedVolumesChan = make(chan master_pb.VolumeShortInformationMessage, 3)
|
|
|
|
s.NewEcShardsChan = make(chan master_pb.VolumeEcShardInformationMessage, 3)
|
|
s.DeletedEcShardsChan = make(chan master_pb.VolumeEcShardInformationMessage, 3)
|
|
|
|
return
|
|
}
|
|
func (s *Store) AddVolume(volumeId needle.VolumeId, collection string, needleMapKind NeedleMapType, replicaPlacement string, ttlString string, preallocate int64) error {
|
|
rt, e := NewReplicaPlacementFromString(replicaPlacement)
|
|
if e != nil {
|
|
return e
|
|
}
|
|
ttl, e := needle.ReadTTL(ttlString)
|
|
if e != nil {
|
|
return e
|
|
}
|
|
e = s.addVolume(volumeId, collection, needleMapKind, rt, ttl, preallocate)
|
|
return e
|
|
}
|
|
func (s *Store) DeleteCollection(collection string) (e error) {
|
|
for _, location := range s.Locations {
|
|
e = location.DeleteCollectionFromDiskLocation(collection)
|
|
if e != nil {
|
|
return
|
|
}
|
|
// let the heartbeat send the list of volumes, instead of sending the deleted volume ids to DeletedVolumesChan
|
|
}
|
|
return
|
|
}
|
|
|
|
func (s *Store) findVolume(vid needle.VolumeId) *Volume {
|
|
for _, location := range s.Locations {
|
|
if v, found := location.FindVolume(vid); found {
|
|
return v
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
func (s *Store) FindFreeLocation() (ret *DiskLocation) {
|
|
max := 0
|
|
for _, location := range s.Locations {
|
|
currentFreeCount := location.MaxVolumeCount - location.VolumesLen()
|
|
if currentFreeCount > max {
|
|
max = currentFreeCount
|
|
ret = location
|
|
}
|
|
}
|
|
return ret
|
|
}
|
|
func (s *Store) addVolume(vid needle.VolumeId, collection string, needleMapKind NeedleMapType, replicaPlacement *ReplicaPlacement, ttl *needle.TTL, preallocate int64) error {
|
|
if s.findVolume(vid) != nil {
|
|
return fmt.Errorf("Volume Id %d already exists!", vid)
|
|
}
|
|
if location := s.FindFreeLocation(); location != 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, needleMapKind, replicaPlacement, ttl, preallocate); err == nil {
|
|
location.SetVolume(vid, volume)
|
|
glog.V(0).Infof("add volume %d", vid)
|
|
s.NewVolumesChan <- master_pb.VolumeShortInformationMessage{
|
|
Id: uint32(vid),
|
|
Collection: collection,
|
|
ReplicaPlacement: uint32(replicaPlacement.Byte()),
|
|
Version: uint32(volume.Version()),
|
|
Ttl: ttl.ToUint32(),
|
|
}
|
|
return nil
|
|
} else {
|
|
return err
|
|
}
|
|
}
|
|
return fmt.Errorf("No more free space left")
|
|
}
|
|
|
|
func (s *Store) Status() []*VolumeInfo {
|
|
var stats []*VolumeInfo
|
|
for _, location := range s.Locations {
|
|
location.RLock()
|
|
for k, v := range location.volumes {
|
|
s := &VolumeInfo{
|
|
Id: needle.VolumeId(k),
|
|
Size: v.ContentSize(),
|
|
Collection: v.Collection,
|
|
ReplicaPlacement: v.ReplicaPlacement,
|
|
Version: v.Version(),
|
|
FileCount: v.nm.FileCount(),
|
|
DeleteCount: v.nm.DeletedCount(),
|
|
DeletedByteCount: v.nm.DeletedSize(),
|
|
ReadOnly: v.readOnly,
|
|
Ttl: v.Ttl,
|
|
CompactRevision: uint32(v.CompactionRevision),
|
|
}
|
|
stats = append(stats, s)
|
|
}
|
|
location.RUnlock()
|
|
}
|
|
sortVolumeInfos(stats)
|
|
return stats
|
|
}
|
|
|
|
func (s *Store) SetDataCenter(dataCenter string) {
|
|
s.dataCenter = dataCenter
|
|
}
|
|
func (s *Store) SetRack(rack string) {
|
|
s.rack = rack
|
|
}
|
|
|
|
func (s *Store) CollectHeartbeat() *master_pb.Heartbeat {
|
|
var volumeMessages []*master_pb.VolumeInformationMessage
|
|
maxVolumeCount := 0
|
|
var maxFileKey NeedleId
|
|
for _, location := range s.Locations {
|
|
maxVolumeCount = maxVolumeCount + location.MaxVolumeCount
|
|
location.Lock()
|
|
for _, v := range location.volumes {
|
|
if maxFileKey < v.nm.MaxFileKey() {
|
|
maxFileKey = v.nm.MaxFileKey()
|
|
}
|
|
if !v.expired(s.GetVolumeSizeLimit()) {
|
|
volumeMessages = append(volumeMessages, v.ToVolumeInformationMessage())
|
|
} else {
|
|
if v.expiredLongEnough(MAX_TTL_VOLUME_REMOVAL_DELAY) {
|
|
location.deleteVolumeById(v.Id)
|
|
glog.V(0).Infoln("volume", v.Id, "is deleted.")
|
|
} else {
|
|
glog.V(0).Infoln("volume", v.Id, "is expired.")
|
|
}
|
|
}
|
|
}
|
|
location.Unlock()
|
|
}
|
|
|
|
return &master_pb.Heartbeat{
|
|
Ip: s.Ip,
|
|
Port: uint32(s.Port),
|
|
PublicUrl: s.PublicUrl,
|
|
MaxVolumeCount: uint32(maxVolumeCount),
|
|
MaxFileKey: NeedleIdToUint64(maxFileKey),
|
|
DataCenter: s.dataCenter,
|
|
Rack: s.rack,
|
|
Volumes: volumeMessages,
|
|
HasNoVolumes: len(volumeMessages) == 0,
|
|
}
|
|
|
|
}
|
|
|
|
func (s *Store) Close() {
|
|
for _, location := range s.Locations {
|
|
location.Close()
|
|
}
|
|
}
|
|
|
|
func (s *Store) Write(i needle.VolumeId, n *needle.Needle) (size uint32, isUnchanged bool, err error) {
|
|
if v := s.findVolume(i); v != nil {
|
|
if v.readOnly {
|
|
err = fmt.Errorf("volume %d is read only", i)
|
|
return
|
|
}
|
|
// TODO: count needle size ahead
|
|
if MaxPossibleVolumeSize >= v.ContentSize()+uint64(size) {
|
|
_, size, isUnchanged, err = v.writeNeedle(n)
|
|
} else {
|
|
err = fmt.Errorf("Volume Size Limit %d Exceeded! Current size is %d", s.GetVolumeSizeLimit(), v.ContentSize())
|
|
}
|
|
return
|
|
}
|
|
glog.V(0).Infoln("volume", i, "not found!")
|
|
err = fmt.Errorf("volume %d not found on %s:%d", i, s.Ip, s.Port)
|
|
return
|
|
}
|
|
|
|
func (s *Store) Delete(i needle.VolumeId, n *needle.Needle) (uint32, error) {
|
|
if v := s.findVolume(i); v != nil && !v.readOnly {
|
|
return v.deleteNeedle(n)
|
|
}
|
|
return 0, nil
|
|
}
|
|
|
|
func (s *Store) ReadVolumeNeedle(i needle.VolumeId, n *needle.Needle) (int, error) {
|
|
if v := s.findVolume(i); v != nil {
|
|
return v.readNeedle(n)
|
|
}
|
|
return 0, fmt.Errorf("volume %d not found", i)
|
|
}
|
|
func (s *Store) GetVolume(i needle.VolumeId) *Volume {
|
|
return s.findVolume(i)
|
|
}
|
|
|
|
func (s *Store) HasVolume(i needle.VolumeId) bool {
|
|
v := s.findVolume(i)
|
|
return v != nil
|
|
}
|
|
|
|
func (s *Store) MountVolume(i needle.VolumeId) error {
|
|
for _, location := range s.Locations {
|
|
if found := location.LoadVolume(i, s.NeedleMapType); found == true {
|
|
glog.V(0).Infof("mount volume %d", i)
|
|
v := s.findVolume(i)
|
|
s.NewVolumesChan <- master_pb.VolumeShortInformationMessage{
|
|
Id: uint32(v.Id),
|
|
Collection: v.Collection,
|
|
ReplicaPlacement: uint32(v.ReplicaPlacement.Byte()),
|
|
Version: uint32(v.Version()),
|
|
Ttl: v.Ttl.ToUint32(),
|
|
}
|
|
return nil
|
|
}
|
|
}
|
|
|
|
return fmt.Errorf("volume %d not found on disk", i)
|
|
}
|
|
|
|
func (s *Store) UnmountVolume(i needle.VolumeId) error {
|
|
v := s.findVolume(i)
|
|
if v == nil {
|
|
return nil
|
|
}
|
|
message := master_pb.VolumeShortInformationMessage{
|
|
Id: uint32(v.Id),
|
|
Collection: v.Collection,
|
|
ReplicaPlacement: uint32(v.ReplicaPlacement.Byte()),
|
|
Version: uint32(v.Version()),
|
|
Ttl: v.Ttl.ToUint32(),
|
|
}
|
|
|
|
for _, location := range s.Locations {
|
|
if err := location.UnloadVolume(i); err == nil {
|
|
glog.V(0).Infof("UnmountVolume %d", i)
|
|
s.DeletedVolumesChan <- message
|
|
return nil
|
|
}
|
|
}
|
|
|
|
return fmt.Errorf("volume %d not found on disk", i)
|
|
}
|
|
|
|
func (s *Store) DeleteVolume(i needle.VolumeId) error {
|
|
v := s.findVolume(i)
|
|
if v == nil {
|
|
return nil
|
|
}
|
|
message := master_pb.VolumeShortInformationMessage{
|
|
Id: uint32(v.Id),
|
|
Collection: v.Collection,
|
|
ReplicaPlacement: uint32(v.ReplicaPlacement.Byte()),
|
|
Version: uint32(v.Version()),
|
|
Ttl: v.Ttl.ToUint32(),
|
|
}
|
|
for _, location := range s.Locations {
|
|
if error := location.deleteVolumeById(i); error == nil {
|
|
glog.V(0).Infof("DeleteVolume %d", i)
|
|
s.DeletedVolumesChan <- message
|
|
return nil
|
|
}
|
|
}
|
|
|
|
return fmt.Errorf("volume %d not found on disk", i)
|
|
}
|
|
|
|
func (s *Store) SetVolumeSizeLimit(x uint64) {
|
|
atomic.StoreUint64(&s.volumeSizeLimit, x)
|
|
}
|
|
|
|
func (s *Store) GetVolumeSizeLimit() uint64 {
|
|
return atomic.LoadUint64(&s.volumeSizeLimit)
|
|
}
|