Mirror
/
seaweedfs
mirror of https://github.com/seaweedfs/seaweedfs.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

able to sync the changes

pull/747/head
Chris Lu 6 years ago
parent
a8cd7df44a
commit
a6cfaba018
6 changed files with 217 additions and 65 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 4
      weed/command/download.go
  2. 2
      weed/replication/replicator.go
  3. 122
      weed/replication/sink/fetch_write.go
  4. 132
      weed/replication/sink/filer_sink.go
  5. 11
      weed/replication/source/filer_source.go
  6. 5
      weed/util/http_util.go

4
weed/command/download.go
View File

@ -55,7 +55,7 @@ func downloadToFile(server, fileId, saveDir string) error {
if lookupError != nil {
return lookupError
}
filename, rc, err := util.DownloadUrl(fileUrl)
filename, _, rc, err := util.DownloadFile(fileUrl)
if err != nil {
return err
}
@ -108,7 +108,7 @@ func fetchContent(server string, fileId string) (filename string, content []byte
return "", nil, lookupError
}
var rc io.ReadCloser
if filename, rc, e = util.DownloadUrl(fileUrl); e != nil {
if filename, _, rc, e = util.DownloadFile(fileUrl); e != nil {
return "", nil, e
}
content, e = ioutil.ReadAll(rc)

2
weed/replication/replicator.go
View File

@ -30,6 +30,8 @@ func NewReplicator(sourceConfig, sinkConfig util.Configuration) *Replicator {
}
}
sink.SetSourceFiler(source)
return &Replicator{
sink: sink,
source: source,

122
weed/replication/sink/fetch_write.go
View File

@ -0,0 +1,122 @@
package sink
import (
"context"
"sync"
"strings"
"fmt"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/operation"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/util"
)
func (fs *FilerSink) replicateChunks(sourceChunks []*filer_pb.FileChunk) (replicatedChunks []*filer_pb.FileChunk, err error) {
if len(sourceChunks) == 0 {
return
}
var wg sync.WaitGroup
for _, sourceChunk := range sourceChunks {
wg.Add(1)
go func(chunk *filer_pb.FileChunk) {
defer wg.Done()
replicatedChunk, e := fs.replicateOneChunk(chunk)
if e != nil {
err = e
}
replicatedChunks = append(replicatedChunks, replicatedChunk)
}(sourceChunk)
}
wg.Wait()
return
}
func (fs *FilerSink) replicateOneChunk(sourceChunk *filer_pb.FileChunk) (*filer_pb.FileChunk, error) {
fileId, err := fs.fetchAndWrite(sourceChunk)
if err != nil {
return nil, fmt.Errorf("copy %s: %v", sourceChunk.FileId, err)
}
return &filer_pb.FileChunk{
FileId: fileId,
Offset: sourceChunk.Offset,
Size: sourceChunk.Size,
Mtime: sourceChunk.Mtime,
ETag: sourceChunk.ETag,
SourceFileId: sourceChunk.FileId,
}, nil
}
func (fs *FilerSink) fetchAndWrite(sourceChunk *filer_pb.FileChunk) (fileId string, err error) {
filename, header, readCloser, err := fs.filerSource.ReadPart(sourceChunk.FileId)
if err != nil {
return "", fmt.Errorf("read part %s: %v", sourceChunk.FileId, err)
}
defer readCloser.Close()
var host string
if err := fs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error {
request := &filer_pb.AssignVolumeRequest{
Count: 1,
Replication: fs.replication,
Collection: fs.collection,
TtlSec: fs.ttlSec,
DataCenter: fs.dataCenter,
}
resp, err := client.AssignVolume(context.Background(), request)
if err != nil {
glog.V(0).Infof("assign volume failure %v: %v", request, err)
return err
}
fileId, host = resp.FileId, resp.Url
return nil
}); err != nil {
return "", fmt.Errorf("filerGrpcAddress assign volume: %v", err)
}
fileUrl := fmt.Sprintf("http://%s/%s", host, fileId)
glog.V(3).Infof("replicating %s to %s header:%+v", filename, fileUrl, header)
uploadResult, err := operation.Upload(fileUrl, filename, readCloser,
"gzip" == header.Get("Content-Encoding"), header.Get("Content-Type"), nil, "")
if err != nil {
glog.V(0).Infof("upload data %v to %s: %v", filename, fileUrl, err)
return "", fmt.Errorf("upload data: %v", err)
}
if uploadResult.Error != "" {
glog.V(0).Infof("upload failure %v to %s: %v", filename, fileUrl, err)
return "", fmt.Errorf("upload result: %v", uploadResult.Error)
}
return
}
func (fs *FilerSink) withFilerClient(fn func(filer_pb.SeaweedFilerClient) error) error {
grpcConnection, err := util.GrpcDial(fs.grpcAddress)
if err != nil {
return fmt.Errorf("fail to dial %s: %v", fs.grpcAddress, err)
}
defer grpcConnection.Close()
client := filer_pb.NewSeaweedFilerClient(grpcConnection)
return fn(client)
}
func volumeId(fileId string) string {
lastCommaIndex := strings.LastIndex(fileId, ",")
if lastCommaIndex > 0 {
return fileId[:lastCommaIndex]
}
return fileId
}

132
weed/replication/sink/filer_sink.go
View File

@ -1,14 +1,14 @@
package sink
import (
"fmt"
"context"
"github.com/chrislusf/seaweedfs/weed/util"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"fmt"
"strings"
"github.com/chrislusf/seaweedfs/weed/filer2"
"github.com/chrislusf/seaweedfs/weed/glog"
"context"
"sync"
"github.com/chrislusf/seaweedfs/weed/replication/source"
)
type ReplicationSink interface {
@ -16,11 +16,17 @@ type ReplicationSink interface {
CreateEntry(key string, entry *filer_pb.Entry) error
UpdateEntry(key string, oldEntry, newEntry *filer_pb.Entry, deleteIncludeChunks bool) error
GetDirectory() string
SetSourceFiler(s *source.FilerSource)
}
type FilerSink struct {
grpcAddress string
dir string
filerSource *source.FilerSource
replication string
collection string
ttlSec int32
dataCenter string
}
func (fs *FilerSink) GetDirectory() string {
@ -34,6 +40,10 @@ func (fs *FilerSink) Initialize(configuration util.Configuration) error {
)
}
func (fs *FilerSink) SetSourceFiler(s *source.FilerSource) {
fs.filerSource = s
}
func (fs *FilerSink) initialize(grpcAddress string, dir string) (err error) {
fs.grpcAddress = grpcAddress
fs.dir = dir
@ -65,13 +75,15 @@ func (fs *FilerSink) DeleteEntry(key string, entry *filer_pb.Entry, deleteInclud
func (fs *FilerSink) CreateEntry(key string, entry *filer_pb.Entry) error {
replicatedChunks, err := replicateChunks(entry.Chunks)
replicatedChunks, err := fs.replicateChunks(entry.Chunks)
if err != nil {
glog.V(0).Infof("replicate entry chunks %s: %v", key, err)
return fmt.Errorf("replicate entry chunks %s: %v", key, err)
}
glog.V(0).Infof("replicated %s %+v ===> %+v", key, entry.Chunks, replicatedChunks)
return fs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error {
dir, name := filer2.FullPath(key).DirAndName()
@ -96,70 +108,84 @@ func (fs *FilerSink) CreateEntry(key string, entry *filer_pb.Entry) error {
})
}
func (fs *FilerSink) UpdateEntry(key string, oldEntry, newEntry *filer_pb.Entry, deleteIncludeChunks bool) error {
return nil
}
func (fs *FilerSink) UpdateEntry(key string, oldEntry, newEntry *filer_pb.Entry, deleteIncludeChunks bool) (err error) {
func (fs *FilerSink) withFilerClient(fn func(filer_pb.SeaweedFilerClient) error) error {
ctx := context.Background()
grpcConnection, err := util.GrpcDial(fs.grpcAddress)
if err != nil {
return fmt.Errorf("fail to dial %s: %v", fs.grpcAddress, err)
}
defer grpcConnection.Close()
dir, name := filer2.FullPath(key).DirAndName()
client := filer_pb.NewSeaweedFilerClient(grpcConnection)
// find out what changed
deletedChunks, newChunks := compareChunks(oldEntry, newEntry)
return fn(client)
}
// read existing entry
var entry *filer_pb.Entry
err = fs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error {
func volumeId(fileId string) string {
lastCommaIndex := strings.LastIndex(fileId, ",")
if lastCommaIndex > 0 {
return fileId[:lastCommaIndex]
request := &filer_pb.LookupDirectoryEntryRequest{
Directory: dir,
Name: name,
}
return fileId
}
func replicateChunks(sourceChunks []*filer_pb.FileChunk) (replicatedChunks []*filer_pb.FileChunk, err error) {
if len(sourceChunks) == 0 {
return
glog.V(4).Infof("lookup directory entry: %v", request)
resp, err := client.LookupDirectoryEntry(ctx, request)
if err != nil {
glog.V(0).Infof("lookup %s: %v", key, err)
return err
}
var wg sync.WaitGroup
for _, s := range sourceChunks {
wg.Add(1)
go func(chunk *filer_pb.FileChunk) {
defer wg.Done()
replicatedChunk, e := replicateOneChunk(chunk)
if e != nil {
err = e
entry = resp.Entry
return nil
})
if err != nil {
return err
}
replicatedChunks = append(replicatedChunks, replicatedChunk)
}(s)
// delete the chunks that are deleted from the source
if deleteIncludeChunks {
// remove the deleted chunks. Actual data deletion happens in filer UpdateEntry FindUnusedFileChunks
entry.Chunks = minusChunks(entry.Chunks, deletedChunks)
}
wg.Wait()
return
}
// replicate the chunks that are new in the source
replicatedChunks, err := fs.replicateChunks(newChunks)
entry.Chunks = append(entry.Chunks, replicatedChunks...)
func replicateOneChunk(sourceChunk *filer_pb.FileChunk) (*filer_pb.FileChunk, error) {
// save updated meta data
return fs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error {
fileId, err := fetchAndWrite(sourceChunk)
if err != nil {
return nil, fmt.Errorf("copy %s: %v", sourceChunk.FileId, err)
request := &filer_pb.UpdateEntryRequest{
Directory: dir,
Entry: entry,
}
return &filer_pb.FileChunk{
FileId: fileId,
Offset: sourceChunk.Offset,
Size: sourceChunk.Size,
Mtime: sourceChunk.Mtime,
ETag: sourceChunk.ETag,
SourceFileId: sourceChunk.FileId,
}, nil
}
if _, err := client.UpdateEntry(ctx, request); err != nil {
return fmt.Errorf("update entry %s: %v", key, err)
}
func fetchAndWrite(sourceChunk *filer_pb.FileChunk) (fileId string, err error) {
return nil
})
}
func compareChunks(oldEntry, newEntry *filer_pb.Entry) (deletedChunks, newChunks []*filer_pb.FileChunk) {
deletedChunks = minusChunks(oldEntry.Chunks, newEntry.Chunks)
newChunks = minusChunks(newEntry.Chunks, oldEntry.Chunks)
return
}
func minusChunks(as, bs []*filer_pb.FileChunk) (delta []*filer_pb.FileChunk) {
for _, a := range as {
found := false
for _, b := range bs {
if a.FileId == b.FileId {
found = true
break
}
}
if !found {
delta = append(delta, a)
}
}
return
}

11
weed/replication/source/filer_source.go
View File

@ -8,6 +8,7 @@ import (
"github.com/chrislusf/seaweedfs/weed/glog"
"strings"
"context"
"net/http"
)
type ReplicationSource interface {
@ -32,7 +33,7 @@ func (fs *FilerSource) initialize(grpcAddress string, dir string) (err error) {
return nil
}
func (fs *FilerSource) ReadPart(part string) (readCloser io.ReadCloser, err error) {
func (fs *FilerSource) ReadPart(part string) (filename string, header http.Header, readCloser io.ReadCloser, err error) {
vid2Locations := make(map[string]*filer_pb.Locations)
@ -55,21 +56,21 @@ func (fs *FilerSource) ReadPart(part string) (readCloser io.ReadCloser, err erro
if err != nil {
glog.V(1).Infof("replication lookup volume id %s: %v", vid, err)
return nil, fmt.Errorf("replication lookup volume id %s: %v", vid, err)
return "", nil, nil, fmt.Errorf("replication lookup volume id %s: %v", vid, err)
}
locations := vid2Locations[vid]
if locations == nil || len(locations.Locations) == 0 {
glog.V(1).Infof("replication locate volume id %s: %v", vid, err)
return nil, fmt.Errorf("replication locate volume id %s: %v", vid, err)
return "", nil, nil, fmt.Errorf("replication locate volume id %s: %v", vid, err)
}
fileUrl := fmt.Sprintf("http://%s/%s", locations.Locations[0].Url, part)
_, readCloser, err = util.DownloadUrl(fileUrl)
filename, header, readCloser, err = util.DownloadFile(fileUrl)
return readCloser, err
return filename, header, readCloser, err
}
func (fs *FilerSource) withFilerClient(fn func(filer_pb.SeaweedFilerClient) error) error {

5
weed/util/http_util.go
View File

@ -155,11 +155,12 @@ func GetUrlStream(url string, values url.Values, readFn func(io.Reader) error) e
return readFn(r.Body)
}
func DownloadUrl(fileUrl string) (filename string, rc io.ReadCloser, e error) {
func DownloadFile(fileUrl string) (filename string, header http.Header, rc io.ReadCloser, e error) {
response, err := client.Get(fileUrl)
if err != nil {
return "", nil, err
return "", nil, nil, err
}
header = response.Header
contentDisposition := response.Header["Content-Disposition"]
if len(contentDisposition) > 0 {
idx := strings.Index(contentDisposition[0], "filename=")

Write Preview
Loading…
Cancel
Save