lsm/seaweedfs
1
0
Fork 0
mirror of https://github.com/seaweedfs/seaweedfs.git synced 2025-10-21 11:07:45 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

master load backend storage config from master.toml

Browse Source
This commit is contained in:
Chris Lu
2019-11-28 18:33:18 -08:00
parent 641b92f53c
commit f60154f330
20 changed files with 185 additions and 86 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
weed/storage/backend/backend.go
View File

@@ -4,9 +4,13 @@ import (
"io"
"os"
"time"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/util"
"github.com/spf13/viper"
)
type DataStorageBackend interface {
type BackendStorageFile interface {
io.ReaderAt
io.WriterAt
Truncate(off int64) error
@@ -16,6 +20,41 @@ type DataStorageBackend interface {
Instantiate(src *os.File) error
}
type BackendStorage interface {
Name() string
NewStorageFile(key string) BackendStorageFile
}
type StorageType string
type BackendStorageFactory interface {
StorageType() StorageType
BuildStorage(configuration util.Configuration, id string) (BackendStorage, error)
}
var (
StorageBackends []DataStorageBackend
BackendStorageFactories = make(map[StorageType]BackendStorageFactory)
BackendStorages = make(map[string]BackendStorage)
)
func LoadConfiguration(config *viper.Viper) {
StorageBackendPrefix := "storage.backend"
backendSub := config.Sub(StorageBackendPrefix)
for backendTypeName, _ := range config.GetStringMap(StorageBackendPrefix) {
backendStorageFactory, found := BackendStorageFactories[StorageType(backendTypeName)]
if !found {
glog.Fatalf("backend storage type %s not found", backendTypeName)
}
backendTypeSub := backendSub.Sub(backendTypeName)
for backendStorageId, _ := range backendSub.GetStringMap(backendTypeName) {
backendStorage, buildErr := backendStorageFactory.BuildStorage(backendTypeSub.Sub(backendStorageId), backendStorageId)
if buildErr != nil {
glog.Fatalf("fail to create backend storage %s.%s", backendTypeName, backendStorageId)
}
BackendStorages[backendTypeName+"."+backendStorageId] = backendStorage
}
}
}

2
weed/storage/backend/disk_file.go
View File

@@ -6,7 +6,7 @@ import (
)
var (
_ DataStorageBackend = &DiskFile{}
_ BackendStorageFile = &DiskFile{}
)
type DiskFile struct {

2
weed/storage/backend/memory_map/memory_map_backend.go
View File

@@ -8,7 +8,7 @@ import (
)
var (
_ backend.DataStorageBackend = &MemoryMappedFile{}
_ backend.BackendStorageFile = &MemoryMappedFile{}
)
type MemoryMappedFile struct {

124
weed/storage/backend/s3_backend/s3_backend.go
View File

@@ -10,36 +10,77 @@ import (
"github.com/aws/aws-sdk-go/service/s3/s3iface"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/storage/backend"
"github.com/chrislusf/seaweedfs/weed/storage/needle"
"github.com/chrislusf/seaweedfs/weed/util"
)
var (
_ backend.DataStorageBackend = &S3Backend{}
)
func init() {
backend.StorageBackends = append(backend.StorageBackends, &S3Backend{})
backend.BackendStorageFactories["s3"] = &S3BackendFactory{}
}
type S3Backend struct {
type S3BackendFactory struct {
}
func (factory *S3BackendFactory) StorageType() backend.StorageType {
return backend.StorageType("s3")
}
func (factory *S3BackendFactory) BuildStorage(configuration util.Configuration, id string) (backend.BackendStorage, error) {
return newS3BackendStorage(configuration, id)
}
type S3BackendStorage struct {
id string
conn s3iface.S3API
region string
bucket string
vid needle.VolumeId
key string
}
func (s3backend S3Backend) ReadAt(p []byte, off int64) (n int, err error) {
func newS3BackendStorage(configuration util.Configuration, id string) (s *S3BackendStorage, err error) {
s = &S3BackendStorage{}
s.id = id
s.conn, err = createSession(
configuration.GetString("aws_access_key_id"),
configuration.GetString("aws_secret_access_key"),
configuration.GetString("region"))
s.region = configuration.GetString("region")
s.bucket = configuration.GetString("bucket")
glog.V(0).Infof("created s3 backend storage %s for region %s bucket %s", s.Name(), s.region, s.bucket)
return
}
func (s *S3BackendStorage) Name() string {
return "s3." + s.id
}
func (s *S3BackendStorage) NewStorageFile(key string) backend.BackendStorageFile {
if strings.HasPrefix(key, "/") {
key = key[1:]
}
f := &S3BackendStorageFile{
backendStorage: s,
key: key,
}
return f
}
type S3BackendStorageFile struct {
backendStorage *S3BackendStorage
key string
}
func (s3backendStorageFile S3BackendStorageFile) ReadAt(p []byte, off int64) (n int, err error) {
bytesRange := fmt.Sprintf("bytes=%d-%d", off, off+int64(len(p))-1)
getObjectOutput, getObjectErr := s3backend.conn.GetObject(&s3.GetObjectInput{
Bucket: &s3backend.bucket,
Key: &s3backend.key,
getObjectOutput, getObjectErr := s3backendStorageFile.backendStorage.conn.GetObject(&s3.GetObjectInput{
Bucket: &s3backendStorageFile.backendStorage.bucket,
Key: &s3backendStorageFile.key,
Range: &bytesRange,
})
if getObjectErr != nil {
return 0, fmt.Errorf("bucket %s GetObject %s: %v", s3backend.bucket, s3backend.key, getObjectErr)
return 0, fmt.Errorf("bucket %s GetObject %s: %v",
s3backendStorageFile.backendStorage.bucket, s3backendStorageFile.key, getObjectErr)
}
defer getObjectOutput.Body.Close()
@@ -47,27 +88,28 @@ func (s3backend S3Backend) ReadAt(p []byte, off int64) (n int, err error) {
}
func (s3backend S3Backend) WriteAt(p []byte, off int64) (n int, err error) {
func (s3backendStorageFile S3BackendStorageFile) WriteAt(p []byte, off int64) (n int, err error) {
panic("implement me")
}
func (s3backend S3Backend) Truncate(off int64) error {
func (s3backendStorageFile S3BackendStorageFile) Truncate(off int64) error {
panic("implement me")
}
func (s3backend S3Backend) Close() error {
func (s3backendStorageFile S3BackendStorageFile) Close() error {
return nil
}
func (s3backend S3Backend) GetStat() (datSize int64, modTime time.Time, err error) {
func (s3backendStorageFile S3BackendStorageFile) GetStat() (datSize int64, modTime time.Time, err error) {
headObjectOutput, headObjectErr := s3backend.conn.HeadObject(&s3.HeadObjectInput{
Bucket: &s3backend.bucket,
Key: &s3backend.key,
headObjectOutput, headObjectErr := s3backendStorageFile.backendStorage.conn.HeadObject(&s3.HeadObjectInput{
Bucket: &s3backendStorageFile.backendStorage.bucket,
Key: &s3backendStorageFile.key,
})
if headObjectErr != nil {
return 0, time.Now(), fmt.Errorf("bucket %s HeadObject %s: %v", s3backend.bucket, s3backend.key, headObjectErr)
return 0, time.Now(), fmt.Errorf("bucket %s HeadObject %s: %v",
s3backendStorageFile.backendStorage.bucket, s3backendStorageFile.key, headObjectErr)
}
datSize = int64(*headObjectOutput.ContentLength)
@@ -76,44 +118,14 @@ func (s3backend S3Backend) GetStat() (datSize int64, modTime time.Time, err erro
return
}
func (s3backend S3Backend) String() string {
return fmt.Sprintf("%s/%s", s3backend.bucket, s3backend.key)
func (s3backendStorageFile S3BackendStorageFile) String() string {
return s3backendStorageFile.key
}
func (s3backend *S3Backend) GetName() string {
func (s3backendStorageFile *S3BackendStorageFile) GetName() string {
return "s3"
}
func (s3backend S3Backend) Instantiate(src *os.File) error {
func (s3backendStorageFile S3BackendStorageFile) Instantiate(src *os.File) error {
panic("implement me")
}
func (s3backend *S3Backend) Initialize(configuration util.Configuration, prefix string, vid needle.VolumeId) error {
glog.V(0).Infof("storage.backend.s3.region: %v", configuration.GetString("region"))
glog.V(0).Infof("storage.backend.s3.bucket: %v", configuration.GetString("bucket"))
glog.V(0).Infof("storage.backend.s3.directory: %v", configuration.GetString("directory"))
return s3backend.initialize(
configuration.GetString("aws_access_key_id"),
configuration.GetString("aws_secret_access_key"),
configuration.GetString("region"),
configuration.GetString("bucket"),
prefix,
vid,
)
}
func (s3backend *S3Backend) initialize(awsAccessKeyId, awsSecretAccessKey, region, bucket string,
prefix string, vid needle.VolumeId) (err error) {
s3backend.region = region
s3backend.bucket = bucket
s3backend.conn, err = createSession(awsAccessKeyId, awsSecretAccessKey, region)
s3backend.vid = vid
s3backend.key = fmt.Sprintf("%s_%d.dat", prefix, vid)
if strings.HasPrefix(s3backend.key, "/") {
s3backend.key = s3backend.key[1:]
}
return err
}

12
weed/storage/needle/needle_read_write.go
View File

@@ -125,10 +125,10 @@ func (n *Needle) prepareWriteBuffer(version Version) ([]byte, uint32, int64, err
return writeBytes, 0, 0, fmt.Errorf("Unsupported Version! (%d)", version)
}
func (n *Needle) Append(w backend.DataStorageBackend, version Version) (offset uint64, size uint32, actualSize int64, err error) {
func (n *Needle) Append(w backend.BackendStorageFile, version Version) (offset uint64, size uint32, actualSize int64, err error) {
if end, _, e := w.GetStat(); e == nil {
defer func(w backend.DataStorageBackend, off int64) {
defer func(w backend.BackendStorageFile, off int64) {
if err != nil {
if te := w.Truncate(end); te != nil {
glog.V(0).Infof("Failed to truncate %s back to %d with error: %v", w.String(), end, te)
@@ -150,7 +150,7 @@ func (n *Needle) Append(w backend.DataStorageBackend, version Version) (offset u
return offset, size, actualSize, err
}
func ReadNeedleBlob(r backend.DataStorageBackend, offset int64, size uint32, version Version) (dataSlice []byte, err error) {
func ReadNeedleBlob(r backend.BackendStorageFile, offset int64, size uint32, version Version) (dataSlice []byte, err error) {
dataSize := GetActualSize(size, version)
dataSlice = make([]byte, int(dataSize))
@@ -191,7 +191,7 @@ func (n *Needle) ReadBytes(bytes []byte, offset int64, size uint32, version Vers
}
// ReadData hydrates the needle from the file, with only n.Id is set.
func (n *Needle) ReadData(r backend.DataStorageBackend, offset int64, size uint32, version Version) (err error) {
func (n *Needle) ReadData(r backend.BackendStorageFile, offset int64, size uint32, version Version) (err error) {
bytes, err := ReadNeedleBlob(r, offset, size, version)
if err != nil {
return err
@@ -266,7 +266,7 @@ func (n *Needle) readNeedleDataVersion2(bytes []byte) (err error) {
return nil
}
func ReadNeedleHeader(r backend.DataStorageBackend, version Version, offset int64) (n *Needle, bytes []byte, bodyLength int64, err error) {
func ReadNeedleHeader(r backend.BackendStorageFile, version Version, offset int64) (n *Needle, bytes []byte, bodyLength int64, err error) {
n = new(Needle)
if version == Version1 || version == Version2 || version == Version3 {
bytes = make([]byte, NeedleHeaderSize)
@@ -301,7 +301,7 @@ func NeedleBodyLength(needleSize uint32, version Version) int64 {
//n should be a needle already read the header
//the input stream will read until next file entry
func (n *Needle) ReadNeedleBody(r backend.DataStorageBackend, version Version, offset int64, bodyLength int64) (bytes []byte, err error) {
func (n *Needle) ReadNeedleBody(r backend.BackendStorageFile, version Version, offset int64, bodyLength int64) (bytes []byte, err error) {
if bodyLength <= 0 {
return nil, nil

2
weed/storage/volume.go
View File

@@ -21,7 +21,7 @@ type Volume struct {
Id needle.VolumeId
dir string
Collection string
DataBackend backend.DataStorageBackend
DataBackend backend.BackendStorageFile
nm NeedleMapper
needleMapKind NeedleMapType
readOnly bool

2
weed/storage/volume_checking.go
View File

@@ -55,7 +55,7 @@ func readIndexEntryAtOffset(indexFile *os.File, offset int64) (bytes []byte, err
return
}
func verifyNeedleIntegrity(datFile backend.DataStorageBackend, v needle.Version, offset int64, key NeedleId, size uint32) (lastAppendAtNs uint64, err error) {
func verifyNeedleIntegrity(datFile backend.BackendStorageFile, v needle.Version, offset int64, key NeedleId, size uint32) (lastAppendAtNs uint64, err error) {
n := new(needle.Needle)
if err = n.ReadData(datFile, offset, size, v); err != nil {
return n.AppendAtNs, err

2
weed/storage/volume_create.go
View File

@@ -9,7 +9,7 @@ import (
"github.com/chrislusf/seaweedfs/weed/storage/backend"
)
func createVolumeFile(fileName string, preallocate int64, memoryMapSizeMB uint32) (backend.DataStorageBackend, error) {
func createVolumeFile(fileName string, preallocate int64, memoryMapSizeMB uint32) (backend.BackendStorageFile, error) {
file, e := os.OpenFile(fileName, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
if preallocate > 0 {
glog.V(0).Infof("Preallocated disk space for %s is not supported", fileName)

2
weed/storage/volume_create_linux.go
View File

@@ -10,7 +10,7 @@ import (
"github.com/chrislusf/seaweedfs/weed/storage/backend"
)
func createVolumeFile(fileName string, preallocate int64, memoryMapSizeMB uint32) (backend.DataStorageBackend, error) {
func createVolumeFile(fileName string, preallocate int64, memoryMapSizeMB uint32) (backend.BackendStorageFile, error) {
file, e := os.OpenFile(fileName, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
if preallocate != 0 {
syscall.Fallocate(int(file.Fd()), 1, 0, preallocate)

2
weed/storage/volume_create_windows.go
View File

@@ -11,7 +11,7 @@ import (
"github.com/chrislusf/seaweedfs/weed/storage/backend/memory_map/os_overloads"
)
func createVolumeFile(fileName string, preallocate int64, memoryMapSizeMB uint32) (backend.DataStorageBackend, error) {
func createVolumeFile(fileName string, preallocate int64, memoryMapSizeMB uint32) (backend.BackendStorageFile, error) {
if preallocate > 0 {
glog.V(0).Infof("Preallocated disk space for %s is not supported", fileName)

2
weed/storage/volume_read_write.go
View File

@@ -195,7 +195,7 @@ func ScanVolumeFile(dirname string, collection string, id needle.VolumeId,
return ScanVolumeFileFrom(version, v.DataBackend, offset, volumeFileScanner)
}
func ScanVolumeFileFrom(version needle.Version, datBackend backend.DataStorageBackend, offset int64, volumeFileScanner VolumeFileScanner) (err error) {
func ScanVolumeFileFrom(version needle.Version, datBackend backend.BackendStorageFile, offset int64, volumeFileScanner VolumeFileScanner) (err error) {
n, nh, rest, e := needle.ReadNeedleHeader(datBackend, version, offset)
if e != nil {
if e == io.EOF {

2
weed/storage/volume_super_block.go
View File

@@ -104,7 +104,7 @@ func (v *Volume) readSuperBlock() (err error) {
}
// ReadSuperBlock reads from data file and load it into volume's super block
func ReadSuperBlock(datBackend backend.DataStorageBackend) (superBlock SuperBlock, err error) {
func ReadSuperBlock(datBackend backend.BackendStorageFile) (superBlock SuperBlock, err error) {
header := make([]byte, _SuperBlockSize)
if _, e := datBackend.ReadAt(header, 0); e != nil {

6
weed/storage/volume_vacuum.go
View File

@@ -132,7 +132,7 @@ func (v *Volume) cleanupCompact() error {
return nil
}
func fetchCompactRevisionFromDatFile(datBackend backend.DataStorageBackend) (compactRevision uint16, err error) {
func fetchCompactRevisionFromDatFile(datBackend backend.BackendStorageFile) (compactRevision uint16, err error) {
superBlock, err := ReadSuperBlock(datBackend)
if err != nil {
return 0, err
@@ -270,7 +270,7 @@ func (v *Volume) makeupDiff(newDatFileName, newIdxFileName, oldDatFileName, oldI
type VolumeFileScanner4Vacuum struct {
version needle.Version
v *Volume
dstBackend backend.DataStorageBackend
dstBackend backend.BackendStorageFile
nm *NeedleMap
newOffset int64
now uint64
@@ -312,7 +312,7 @@ func (scanner *VolumeFileScanner4Vacuum) VisitNeedle(n *needle.Needle, offset in
func (v *Volume) copyDataAndGenerateIndexFile(dstName, idxName string, preallocate int64, compactionBytePerSecond int64) (err error) {
var (
dst backend.DataStorageBackend
dst backend.BackendStorageFile
idx *os.File
)
if dst, err = createVolumeFile(dstName, preallocate, 0); err != nil {