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refactoring to get master function, instead of passing master values directly

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this will enable retrying later
This commit is contained in:
Chris Lu 2021-02-17 20:55:55 -08:00
parent dd9f3a0104
commit 6daa932f5c
20 changed files with 64 additions and 57 deletions
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2
unmaintained/volume_tailer/volume_tailer.go
View file

@ -37,7 +37,7 @@ func main() {
sinceTimeNs = time.Now().Add(-*rewindDuration).UnixNano()
}
err := operation.TailVolume(*master, grpcDialOption, vid, uint64(sinceTimeNs), *timeoutSeconds, func(n *needle.Needle) (err error) {
err := operation.TailVolume(func()string{return *master}, grpcDialOption, vid, uint64(sinceTimeNs), *timeoutSeconds, func(n *needle.Needle) (err error) {
if n.Size == 0 {
println("-", n.String())
return nil

2
weed/command/backup.go
View file

@ -72,7 +72,7 @@ func runBackup(cmd *Command, args []string) bool {
vid := needle.VolumeId(*s.volumeId)
// find volume location, replication, ttl info
lookup, err := operation.Lookup(*s.master, vid.String())
lookup, err := operation.Lookup(func()string{return *s.master}, vid.String())
if err != nil {
fmt.Printf("Error looking up volume %d: %v\n", vid, err)
return true

4
weed/command/benchmark.go
View file

@ -238,12 +238,12 @@ func writeFiles(idChan chan int, fileIdLineChan chan string, s *stat) {
Replication: *b.replication,
DiskType: *b.diskType,
}
if assignResult, err := operation.Assign(b.masterClient.GetMaster(), b.grpcDialOption, ar); err == nil {
if assignResult, err := operation.Assign(b.masterClient.GetMaster, b.grpcDialOption, ar); err == nil {
fp.Server, fp.Fid, fp.Collection = assignResult.Url, assignResult.Fid, *b.collection
if !isSecure && assignResult.Auth != "" {
isSecure = true
}
if _, err := fp.Upload(0, b.masterClient.GetMaster(), false, assignResult.Auth, b.grpcDialOption); err == nil {
if _, err := fp.Upload(0, b.masterClient.GetMaster, false, assignResult.Auth, b.grpcDialOption); err == nil {
if random.Intn(100) < *b.deletePercentage {
s.total++
delayedDeleteChan <- &delayedFile{time.Now().Add(time.Second), fp}

12
weed/command/download.go
View file

@ -44,15 +44,15 @@ var cmdDownload = &Command{
func runDownload(cmd *Command, args []string) bool {
for _, fid := range args {
if e := downloadToFile(*d.server, fid, util.ResolvePath(*d.dir)); e != nil {
if e := downloadToFile(func()string{return *d.server}, fid, util.ResolvePath(*d.dir)); e != nil {
fmt.Println("Download Error: ", fid, e)
}
}
return true
}
func downloadToFile(server, fileId, saveDir string) error {
fileUrl, lookupError := operation.LookupFileId(server, fileId)
func downloadToFile(masterFn operation.GetMasterFn, fileId, saveDir string) error {
fileUrl, lookupError := operation.LookupFileId(masterFn, fileId)
if lookupError != nil {
return lookupError
}
@ -83,7 +83,7 @@ func downloadToFile(server, fileId, saveDir string) error {
fids := strings.Split(string(content), "\n")
for _, partId := range fids {
var n int
_, part, err := fetchContent(*d.server, partId)
_, part, err := fetchContent(masterFn, partId)
if err == nil {
n, err = f.Write(part)
}
@ -103,8 +103,8 @@ func downloadToFile(server, fileId, saveDir string) error {
return nil
}
func fetchContent(server string, fileId string) (filename string, content []byte, e error) {
fileUrl, lookupError := operation.LookupFileId(server, fileId)
func fetchContent(masterFn operation.GetMasterFn, fileId string) (filename string, content []byte, e error) {
fileUrl, lookupError := operation.LookupFileId(masterFn, fileId)
if lookupError != nil {
return "", nil, lookupError
}

4
weed/command/filer_copy.go
View file

@ -463,7 +463,9 @@ func (worker *FileCopyWorker) uploadFileInChunks(task FileCopyTask, f *os.File,
for _, chunk := range chunks {
fileIds = append(fileIds, chunk.FileId)
}
operation.DeleteFiles(copy.masters[0], false, worker.options.grpcDialOption, fileIds)
operation.DeleteFiles(func() string {
return copy.masters[0]
}, false, worker.options.grpcDialOption, fileIds)
return uploadError
}

4
weed/command/upload.go
View file

@ -96,7 +96,7 @@ func runUpload(cmd *Command, args []string) bool {
if e != nil {
return e
}
results, e := operation.SubmitFiles(*upload.master, grpcDialOption, parts, *upload.replication, *upload.collection, *upload.dataCenter, *upload.ttl, *upload.diskType, *upload.maxMB, *upload.usePublicUrl)
results, e := operation.SubmitFiles(func()string {return *upload.master}, grpcDialOption, parts, *upload.replication, *upload.collection, *upload.dataCenter, *upload.ttl, *upload.diskType, *upload.maxMB, *upload.usePublicUrl)
bytes, _ := json.Marshal(results)
fmt.Println(string(bytes))
if e != nil {
@ -113,7 +113,7 @@ func runUpload(cmd *Command, args []string) bool {
if e != nil {
fmt.Println(e.Error())
}
results, _ := operation.SubmitFiles(*upload.master, grpcDialOption, parts, *upload.replication, *upload.collection, *upload.dataCenter, *upload.ttl, *upload.diskType, *upload.maxMB, *upload.usePublicUrl)
results, _ := operation.SubmitFiles(func()string {return *upload.master}, grpcDialOption, parts, *upload.replication, *upload.collection, *upload.dataCenter, *upload.ttl, *upload.diskType, *upload.maxMB, *upload.usePublicUrl)
bytes, _ := json.Marshal(results)
fmt.Println(string(bytes))
}

2
weed/filer/filer_notify_append.go
View file

@ -56,7 +56,7 @@ func (f *Filer) assignAndUpload(targetFile string, data []byte) (*operation.Assi
WritableVolumeCount: rule.VolumeGrowthCount,
}
assignResult, err := operation.Assign(f.GetMaster(), f.GrpcDialOption, assignRequest)
assignResult, err := operation.Assign(f.GetMaster, f.GrpcDialOption, assignRequest)
if err != nil {
return nil, nil, fmt.Errorf("AssignVolume: %v", err)
}

4
weed/operation/assign_file_id.go
View file

@ -34,7 +34,7 @@ type AssignResult struct {
Auth security.EncodedJwt `json:"auth,omitempty"`
}
func Assign(server string, grpcDialOption grpc.DialOption, primaryRequest *VolumeAssignRequest, alternativeRequests ...*VolumeAssignRequest) (*AssignResult, error) {
func Assign(masterFn GetMasterFn, grpcDialOption grpc.DialOption, primaryRequest *VolumeAssignRequest, alternativeRequests ...*VolumeAssignRequest) (*AssignResult, error) {
var requests []*VolumeAssignRequest
requests = append(requests, primaryRequest)
@ -48,7 +48,7 @@ func Assign(server string, grpcDialOption grpc.DialOption, primaryRequest *Volum
continue
}
lastError = WithMasterServerClient(server, grpcDialOption, func(masterClient master_pb.SeaweedClient) error {
lastError = WithMasterServerClient(masterFn(), grpcDialOption, func(masterClient master_pb.SeaweedClient) error {
req := &master_pb.AssignRequest{
Count: request.Count,

8
weed/operation/chunked_file.go
View file

@ -72,12 +72,12 @@ func (cm *ChunkManifest) Marshal() ([]byte, error) {
return json.Marshal(cm)
}
func (cm *ChunkManifest) DeleteChunks(master string, usePublicUrl bool, grpcDialOption grpc.DialOption) error {
func (cm *ChunkManifest) DeleteChunks(masterFn GetMasterFn, usePublicUrl bool, grpcDialOption grpc.DialOption) error {
var fileIds []string
for _, ci := range cm.Chunks {
fileIds = append(fileIds, ci.Fid)
}
results, err := DeleteFiles(master, usePublicUrl, grpcDialOption, fileIds)
results, err := DeleteFiles(masterFn, usePublicUrl, grpcDialOption, fileIds)
if err != nil {
glog.V(0).Infof("delete %+v: %v", fileIds, err)
return fmt.Errorf("chunk delete: %v", err)
@ -174,7 +174,9 @@ func (cf *ChunkedFileReader) WriteTo(w io.Writer) (n int64, err error) {
for ; chunkIndex < len(cf.chunkList); chunkIndex++ {
ci := cf.chunkList[chunkIndex]
// if we need read date from local volume server first?
fileUrl, lookupError := LookupFileId(cf.master, ci.Fid)
fileUrl, lookupError := LookupFileId(func() string {
return cf.master
}, ci.Fid)
if lookupError != nil {
return n, lookupError
}

4
weed/operation/delete_content.go
View file

@ -28,10 +28,10 @@ func ParseFileId(fid string) (vid string, key_cookie string, err error) {
}
// DeleteFiles batch deletes a list of fileIds
func DeleteFiles(master string, usePublicUrl bool, grpcDialOption grpc.DialOption, fileIds []string) ([]*volume_server_pb.DeleteResult, error) {
func DeleteFiles(masterFn GetMasterFn, usePublicUrl bool, grpcDialOption grpc.DialOption, fileIds []string) ([]*volume_server_pb.DeleteResult, error) {
lookupFunc := func(vids []string) (results map[string]LookupResult, err error) {
results, err = LookupVolumeIds(master, grpcDialOption, vids)
results, err = LookupVolumeIds(masterFn, grpcDialOption, vids)
if err == nil && usePublicUrl {
for _, result := range results {
for _, loc := range result.Locations {

15
weed/operation/lookup.go
View file

@ -33,10 +33,10 @@ var (
vc VidCache // caching of volume locations, re-check if after 10 minutes
)
func Lookup(server string, vid string) (ret *LookupResult, err error) {
func Lookup(masterFn GetMasterFn, vid string) (ret *LookupResult, err error) {
locations, cache_err := vc.Get(vid)
if cache_err != nil {
if ret, err = do_lookup(server, vid); err == nil {
if ret, err = do_lookup(masterFn, vid); err == nil {
vc.Set(vid, ret.Locations, 10*time.Minute)
}
} else {
@ -45,9 +45,10 @@ func Lookup(server string, vid string) (ret *LookupResult, err error) {
return
}
func do_lookup(server string, vid string) (*LookupResult, error) {
func do_lookup(masterFn GetMasterFn, vid string) (*LookupResult, error) {
values := make(url.Values)
values.Add("volumeId", vid)
server := masterFn()
jsonBlob, err := util.Post("http://"+server+"/dir/lookup", values)
if err != nil {
return nil, err
@ -63,12 +64,12 @@ func do_lookup(server string, vid string) (*LookupResult, error) {
return &ret, nil
}
func LookupFileId(server string, fileId string) (fullUrl string, err error) {
func LookupFileId(masterFn GetMasterFn, fileId string) (fullUrl string, err error) {
parts := strings.Split(fileId, ",")
if len(parts) != 2 {
return "", errors.New("Invalid fileId " + fileId)
}
lookup, lookupError := Lookup(server, parts[0])
lookup, lookupError := Lookup(masterFn, parts[0])
if lookupError != nil {
return "", lookupError
}
@ -79,7 +80,7 @@ func LookupFileId(server string, fileId string) (fullUrl string, err error) {
}
// LookupVolumeIds find volume locations by cache and actual lookup
func LookupVolumeIds(server string, grpcDialOption grpc.DialOption, vids []string) (map[string]LookupResult, error) {
func LookupVolumeIds(masterFn GetMasterFn, grpcDialOption grpc.DialOption, vids []string) (map[string]LookupResult, error) {
ret := make(map[string]LookupResult)
var unknown_vids []string
@ -99,7 +100,7 @@ func LookupVolumeIds(server string, grpcDialOption grpc.DialOption, vids []strin
//only query unknown_vids
err := WithMasterServerClient(server, grpcDialOption, func(masterClient master_pb.SeaweedClient) error {
err := WithMasterServerClient(masterFn(), grpcDialOption, func(masterClient master_pb.SeaweedClient) error {
req := &master_pb.LookupVolumeRequest{
VolumeIds: unknown_vids,

24
weed/operation/submit.go
View file

@ -39,7 +39,9 @@ type SubmitResult struct {
Error string `json:"error,omitempty"`
}
func SubmitFiles(master string, grpcDialOption grpc.DialOption, files []FilePart, replication string, collection string, dataCenter string, ttl string, diskType string, maxMB int, usePublicUrl bool) ([]SubmitResult, error) {
type GetMasterFn func() string
func SubmitFiles(masterFn GetMasterFn, grpcDialOption grpc.DialOption, files []FilePart, replication string, collection string, dataCenter string, ttl string, diskType string, maxMB int, usePublicUrl bool) ([]SubmitResult, error) {
results := make([]SubmitResult, len(files))
for index, file := range files {
results[index].FileName = file.FileName
@ -52,7 +54,7 @@ func SubmitFiles(master string, grpcDialOption grpc.DialOption, files []FilePart
Ttl: ttl,
DiskType: diskType,
}
ret, err := Assign(master, grpcDialOption, ar)
ret, err := Assign(masterFn, grpcDialOption, ar)
if err != nil {
for index := range files {
results[index].Error = err.Error()
@ -73,7 +75,7 @@ func SubmitFiles(master string, grpcDialOption grpc.DialOption, files []FilePart
file.DataCenter = dataCenter
file.Ttl = ttl
file.DiskType = diskType
results[index].Size, err = file.Upload(maxMB, master, usePublicUrl, ret.Auth, grpcDialOption)
results[index].Size, err = file.Upload(maxMB, masterFn, usePublicUrl, ret.Auth, grpcDialOption)
if err != nil {
results[index].Error = err.Error()
}
@ -116,7 +118,7 @@ func newFilePart(fullPathFilename string) (ret FilePart, err error) {
return ret, nil
}
func (fi FilePart) Upload(maxMB int, master string, usePublicUrl bool, jwt security.EncodedJwt, grpcDialOption grpc.DialOption) (retSize uint32, err error) {
func (fi FilePart) Upload(maxMB int, masterFn GetMasterFn, usePublicUrl bool, jwt security.EncodedJwt, grpcDialOption grpc.DialOption) (retSize uint32, err error) {
fileUrl := "http://" + fi.Server + "/" + fi.Fid
if fi.ModTime != 0 {
fileUrl += "?ts=" + strconv.Itoa(int(fi.ModTime))
@ -148,7 +150,7 @@ func (fi FilePart) Upload(maxMB int, master string, usePublicUrl bool, jwt secur
Ttl: fi.Ttl,
DiskType: fi.DiskType,
}
ret, err = Assign(master, grpcDialOption, ar)
ret, err = Assign(masterFn, grpcDialOption, ar)
if err != nil {
return
}
@ -162,10 +164,10 @@ func (fi FilePart) Upload(maxMB int, master string, usePublicUrl bool, jwt secur
Ttl: fi.Ttl,
DiskType: fi.DiskType,
}
ret, err = Assign(master, grpcDialOption, ar)
ret, err = Assign(masterFn, grpcDialOption, ar)
if err != nil {
// delete all uploaded chunks
cm.DeleteChunks(master, usePublicUrl, grpcDialOption)
cm.DeleteChunks(masterFn, usePublicUrl, grpcDialOption)
return
}
id = ret.Fid
@ -182,11 +184,11 @@ func (fi FilePart) Upload(maxMB int, master string, usePublicUrl bool, jwt secur
count, e := upload_one_chunk(
baseName+"-"+strconv.FormatInt(i+1, 10),
io.LimitReader(fi.Reader, chunkSize),
master, fileUrl,
masterFn, fileUrl,
ret.Auth)
if e != nil {
// delete all uploaded chunks
cm.DeleteChunks(master, usePublicUrl, grpcDialOption)
cm.DeleteChunks(masterFn, usePublicUrl, grpcDialOption)
return 0, e
}
cm.Chunks = append(cm.Chunks,
@ -201,7 +203,7 @@ func (fi FilePart) Upload(maxMB int, master string, usePublicUrl bool, jwt secur
err = upload_chunked_file_manifest(fileUrl, &cm, jwt)
if err != nil {
// delete all uploaded chunks
cm.DeleteChunks(master, usePublicUrl, grpcDialOption)
cm.DeleteChunks(masterFn, usePublicUrl, grpcDialOption)
}
} else {
ret, e, _ := Upload(fileUrl, baseName, false, fi.Reader, false, fi.MimeType, nil, jwt)
@ -213,7 +215,7 @@ func (fi FilePart) Upload(maxMB int, master string, usePublicUrl bool, jwt secur
return
}
func upload_one_chunk(filename string, reader io.Reader, master,
func upload_one_chunk(filename string, reader io.Reader, masterFn GetMasterFn,
fileUrl string, jwt security.EncodedJwt,
) (size uint32, e error) {
glog.V(4).Info("Uploading part ", filename, " to ", fileUrl, "...")

4
weed/operation/tail_volume.go
View file

@ -11,9 +11,9 @@ import (
"github.com/chrislusf/seaweedfs/weed/storage/needle"
)
func TailVolume(master string, grpcDialOption grpc.DialOption, vid needle.VolumeId, sinceNs uint64, timeoutSeconds int, fn func(n *needle.Needle) error) error {
func TailVolume(masterFn GetMasterFn, grpcDialOption grpc.DialOption, vid needle.VolumeId, sinceNs uint64, timeoutSeconds int, fn func(n *needle.Needle) error) error {
// find volume location, replication, ttl info
lookup, err := Lookup(master, vid.String())
lookup, err := Lookup(masterFn, vid.String())
if err != nil {
return fmt.Errorf("look up volume %d: %v", vid, err)
}

4
weed/server/common.go
View file

@ -100,7 +100,7 @@ func debug(params ...interface{}) {
glog.V(4).Infoln(params...)
}
func submitForClientHandler(w http.ResponseWriter, r *http.Request, masterUrl string, grpcDialOption grpc.DialOption) {
func submitForClientHandler(w http.ResponseWriter, r *http.Request, masterFn operation.GetMasterFn, grpcDialOption grpc.DialOption) {
m := make(map[string]interface{})
if r.Method != "POST" {
writeJsonError(w, r, http.StatusMethodNotAllowed, errors.New("Only submit via POST!"))
@ -133,7 +133,7 @@ func submitForClientHandler(w http.ResponseWriter, r *http.Request, masterUrl st
Ttl: r.FormValue("ttl"),
DiskType: r.FormValue("disk"),
}
assignResult, ae := operation.Assign(masterUrl, grpcDialOption, ar)
assignResult, ae := operation.Assign(masterFn, grpcDialOption, ar)
if ae != nil {
writeJsonError(w, r, http.StatusInternalServerError, ae)
return

2
weed/server/filer_grpc_server.go
View file

@ -337,7 +337,7 @@ func (fs *FilerServer) AssignVolume(ctx context.Context, req *filer_pb.AssignVol
assignRequest, altRequest := so.ToAssignRequests(int(req.Count))
assignResult, err := operation.Assign(fs.filer.GetMaster(), fs.grpcDialOption, assignRequest, altRequest)
assignResult, err := operation.Assign(fs.filer.GetMaster, fs.grpcDialOption, assignRequest, altRequest)
if err != nil {
glog.V(3).Infof("AssignVolume: %v", err)
return &filer_pb.AssignVolumeResponse{Error: fmt.Sprintf("assign volume: %v", err)}, nil

2
weed/server/filer_server_handlers_write.go
View file

@ -37,7 +37,7 @@ func (fs *FilerServer) assignNewFileInfo(so *operation.StorageOption) (fileId, u
ar, altRequest := so.ToAssignRequests(1)
assignResult, ae := operation.Assign(fs.filer.GetMaster(), fs.grpcDialOption, ar, altRequest)
assignResult, ae := operation.Assign(fs.filer.GetMaster, fs.grpcDialOption, ar, altRequest)
if ae != nil {
glog.Errorf("failing to assign a file id: %v", ae)
err = ae

4
weed/server/master_server_handlers_admin.go
View file

@ -125,13 +125,13 @@ func (ms *MasterServer) selfUrl(r *http.Request) string {
}
func (ms *MasterServer) submitFromMasterServerHandler(w http.ResponseWriter, r *http.Request) {
if ms.Topo.IsLeader() {
submitForClientHandler(w, r, ms.selfUrl(r), ms.grpcDialOption)
submitForClientHandler(w, r, func()string{return ms.selfUrl(r)}, ms.grpcDialOption)
} else {
masterUrl, err := ms.Topo.Leader()
if err != nil {
writeJsonError(w, r, http.StatusInternalServerError, err)
} else {
submitForClientHandler(w, r, masterUrl, ms.grpcDialOption)
submitForClientHandler(w, r, func()string{return masterUrl}, ms.grpcDialOption)
}
}
}

2
weed/server/volume_server_handlers_read.go
View file

@ -63,7 +63,7 @@ func (vs *VolumeServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request)
w.WriteHeader(http.StatusNotFound)
return
}
lookupResult, err := operation.Lookup(vs.GetMaster(), volumeId.String())
lookupResult, err := operation.Lookup(vs.GetMaster, volumeId.String())
glog.V(2).Infoln("volume", volumeId, "found on", lookupResult, "error", err)
if err == nil && len(lookupResult.Locations) > 0 {
u, _ := url.Parse(util.NormalizeUrl(lookupResult.Locations[0].PublicUrl))

6
weed/server/volume_server_handlers_write.go
View file

@ -50,7 +50,7 @@ func (vs *VolumeServer) PostHandler(w http.ResponseWriter, r *http.Request) {
}
ret := operation.UploadResult{}
isUnchanged, writeError := topology.ReplicatedWrite(vs.GetMaster(), vs.store, volumeId, reqNeedle, r)
isUnchanged, writeError := topology.ReplicatedWrite(vs.GetMaster, vs.store, volumeId, reqNeedle, r)
// http 204 status code does not allow body
if writeError == nil && isUnchanged {
@ -128,7 +128,7 @@ func (vs *VolumeServer) DeleteHandler(w http.ResponseWriter, r *http.Request) {
return
}
// make sure all chunks had deleted before delete manifest
if e := chunkManifest.DeleteChunks(vs.GetMaster(), false, vs.grpcDialOption); e != nil {
if e := chunkManifest.DeleteChunks(vs.GetMaster, false, vs.grpcDialOption); e != nil {
writeJsonError(w, r, http.StatusInternalServerError, fmt.Errorf("Delete chunks error: %v", e))
return
}
@ -143,7 +143,7 @@ func (vs *VolumeServer) DeleteHandler(w http.ResponseWriter, r *http.Request) {
}
}
_, err := topology.ReplicatedDelete(vs.GetMaster(), vs.store, volumeId, n, r)
_, err := topology.ReplicatedDelete(vs.GetMaster, vs.store, volumeId, n, r)
writeDeleteResult(err, count, w, r)

12
weed/topology/store_replicate.go
View file

@ -18,7 +18,7 @@ import (
"github.com/chrislusf/seaweedfs/weed/util"
)
func ReplicatedWrite(masterNode string, s *storage.Store, volumeId needle.VolumeId, n *needle.Needle, r *http.Request) (isUnchanged bool, err error) {
func ReplicatedWrite(masterFn operation.GetMasterFn, s *storage.Store, volumeId needle.VolumeId, n *needle.Needle, r *http.Request) (isUnchanged bool, err error) {
//check JWT
jwt := security.GetJwt(r)
@ -27,7 +27,7 @@ func ReplicatedWrite(masterNode string, s *storage.Store, volumeId needle.Volume
var remoteLocations []operation.Location
if r.FormValue("type") != "replicate" {
// this is the initial request
remoteLocations, err = getWritableRemoteReplications(s, volumeId, masterNode)
remoteLocations, err = getWritableRemoteReplications(s, volumeId, masterFn)
if err != nil {
glog.V(0).Infoln(err)
return
@ -92,7 +92,7 @@ func ReplicatedWrite(masterNode string, s *storage.Store, volumeId needle.Volume
return
}
func ReplicatedDelete(masterNode string, store *storage.Store,
func ReplicatedDelete(masterFn operation.GetMasterFn, store *storage.Store,
volumeId needle.VolumeId, n *needle.Needle,
r *http.Request) (size types.Size, err error) {
@ -101,7 +101,7 @@ func ReplicatedDelete(masterNode string, store *storage.Store,
var remoteLocations []operation.Location
if r.FormValue("type") != "replicate" {
remoteLocations, err = getWritableRemoteReplications(store, volumeId, masterNode)
remoteLocations, err = getWritableRemoteReplications(store, volumeId, masterFn)
if err != nil {
glog.V(0).Infoln(err)
return
@ -161,7 +161,7 @@ func distributedOperation(locations []operation.Location, store *storage.Store,
return ret.Error()
}
func getWritableRemoteReplications(s *storage.Store, volumeId needle.VolumeId, masterNode string) (
func getWritableRemoteReplications(s *storage.Store, volumeId needle.VolumeId, masterFn operation.GetMasterFn) (
remoteLocations []operation.Location, err error) {
v := s.GetVolume(volumeId)
@ -170,7 +170,7 @@ func getWritableRemoteReplications(s *storage.Store, volumeId needle.VolumeId, m
}
// not on local store, or has replications
lookupResult, lookupErr := operation.Lookup(masterNode, volumeId.String())
lookupResult, lookupErr := operation.Lookup(masterFn, volumeId.String())
if lookupErr == nil {
selfUrl := s.Ip + ":" + strconv.Itoa(s.Port)
for _, location := range lookupResult.Locations {