seaweedfs/weed/server/filer_grpc_server.go

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package weed_server
import (
"context"
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"fmt"
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"os"
"path/filepath"
"strconv"
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"time"
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"github.com/seaweedfs/seaweedfs/weed/cluster"
"github.com/seaweedfs/seaweedfs/weed/filer"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/operation"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
"github.com/seaweedfs/seaweedfs/weed/storage/needle"
"github.com/seaweedfs/seaweedfs/weed/util"
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)
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func (fs *FilerServer) LookupDirectoryEntry(ctx context.Context, req *filer_pb.LookupDirectoryEntryRequest) (*filer_pb.LookupDirectoryEntryResponse, error) {
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glog.V(4).Infof("LookupDirectoryEntry %s", filepath.Join(req.Directory, req.Name))
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entry, err := fs.filer.FindEntry(ctx, util.JoinPath(req.Directory, req.Name))
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if err == filer_pb.ErrNotFound {
return &filer_pb.LookupDirectoryEntryResponse{}, err
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}
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if err != nil {
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glog.V(3).Infof("LookupDirectoryEntry %s: %+v, ", filepath.Join(req.Directory, req.Name), err)
return nil, err
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}
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return &filer_pb.LookupDirectoryEntryResponse{
Entry: entry.ToProtoEntry(),
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}, nil
}
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func (fs *FilerServer) ListEntries(req *filer_pb.ListEntriesRequest, stream filer_pb.SeaweedFiler_ListEntriesServer) (err error) {
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glog.V(4).Infof("ListEntries %v", req)
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limit := int(req.Limit)
if limit == 0 {
limit = fs.option.DirListingLimit
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}
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paginationLimit := filer.PaginationSize
if limit < paginationLimit {
paginationLimit = limit
}
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lastFileName := req.StartFromFileName
includeLastFile := req.InclusiveStartFrom
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var listErr error
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for limit > 0 {
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var hasEntries bool
lastFileName, listErr = fs.filer.StreamListDirectoryEntries(stream.Context(), util.FullPath(req.Directory), lastFileName, includeLastFile, int64(paginationLimit), req.Prefix, "", "", func(entry *filer.Entry) bool {
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hasEntries = true
if err = stream.Send(&filer_pb.ListEntriesResponse{
Entry: entry.ToProtoEntry(),
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}); err != nil {
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return false
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}
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limit--
if limit == 0 {
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return false
}
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return true
})
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if listErr != nil {
return listErr
}
if err != nil {
return err
}
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if !hasEntries {
return nil
}
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includeLastFile = false
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}
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return nil
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}
func (fs *FilerServer) LookupVolume(ctx context.Context, req *filer_pb.LookupVolumeRequest) (*filer_pb.LookupVolumeResponse, error) {
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resp := &filer_pb.LookupVolumeResponse{
LocationsMap: make(map[string]*filer_pb.Locations),
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}
for _, vidString := range req.VolumeIds {
vid, err := strconv.Atoi(vidString)
if err != nil {
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glog.V(1).Infof("Unknown volume id %d", vid)
return nil, err
}
var locs []*filer_pb.Location
locations, found := fs.filer.MasterClient.GetLocations(uint32(vid))
if !found {
continue
}
for _, loc := range locations {
locs = append(locs, &filer_pb.Location{
Url: loc.Url,
PublicUrl: loc.PublicUrl,
GrpcPort: uint32(loc.GrpcPort),
DataCenter: loc.DataCenter,
})
}
resp.LocationsMap[vidString] = &filer_pb.Locations{
Locations: locs,
}
}
return resp, nil
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}
func (fs *FilerServer) lookupFileId(fileId string) (targetUrls []string, err error) {
fid, err := needle.ParseFileIdFromString(fileId)
if err != nil {
return nil, err
}
locations, found := fs.filer.MasterClient.GetLocations(uint32(fid.VolumeId))
if !found || len(locations) == 0 {
return nil, fmt.Errorf("not found volume %d in %s", fid.VolumeId, fileId)
}
for _, loc := range locations {
targetUrls = append(targetUrls, fmt.Sprintf("http://%s/%s", loc.Url, fileId))
}
return
}
func (fs *FilerServer) CreateEntry(ctx context.Context, req *filer_pb.CreateEntryRequest) (resp *filer_pb.CreateEntryResponse, err error) {
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glog.V(4).Infof("CreateEntry %v/%v", req.Directory, req.Entry.Name)
resp = &filer_pb.CreateEntryResponse{}
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chunks, garbage, err2 := fs.cleanupChunks(util.Join(req.Directory, req.Entry.Name), nil, req.Entry)
if err2 != nil {
return &filer_pb.CreateEntryResponse{}, fmt.Errorf("CreateEntry cleanupChunks %s %s: %v", req.Directory, req.Entry.Name, err2)
}
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so, err := fs.detectStorageOption(string(util.NewFullPath(req.Directory, req.Entry.Name)), "", "", 0, "", "", "", "")
if err != nil {
return nil, err
}
newEntry := filer.FromPbEntry(req.Directory, req.Entry)
newEntry.Chunks = chunks
newEntry.TtlSec = so.TtlSeconds
createErr := fs.filer.CreateEntry(ctx, newEntry, req.OExcl, req.IsFromOtherCluster, req.Signatures, req.SkipCheckParentDirectory)
if createErr == nil {
fs.filer.DeleteChunksNotRecursive(garbage)
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} else {
glog.V(3).Infof("CreateEntry %s: %v", filepath.Join(req.Directory, req.Entry.Name), createErr)
resp.Error = createErr.Error()
}
return
}
func (fs *FilerServer) UpdateEntry(ctx context.Context, req *filer_pb.UpdateEntryRequest) (*filer_pb.UpdateEntryResponse, error) {
glog.V(4).Infof("UpdateEntry %v", req)
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fullpath := util.Join(req.Directory, req.Entry.Name)
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entry, err := fs.filer.FindEntry(ctx, util.FullPath(fullpath))
if err != nil {
return &filer_pb.UpdateEntryResponse{}, fmt.Errorf("not found %s: %v", fullpath, err)
}
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chunks, garbage, err2 := fs.cleanupChunks(fullpath, entry, req.Entry)
if err2 != nil {
return &filer_pb.UpdateEntryResponse{}, fmt.Errorf("UpdateEntry cleanupChunks %s: %v", fullpath, err2)
}
newEntry := filer.FromPbEntry(req.Directory, req.Entry)
newEntry.Chunks = chunks
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if filer.EqualEntry(entry, newEntry) {
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return &filer_pb.UpdateEntryResponse{}, err
}
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if err = fs.filer.UpdateEntry(ctx, entry, newEntry); err == nil {
fs.filer.DeleteChunksNotRecursive(garbage)
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fs.filer.NotifyUpdateEvent(ctx, entry, newEntry, true, req.IsFromOtherCluster, req.Signatures)
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} else {
glog.V(3).Infof("UpdateEntry %s: %v", filepath.Join(req.Directory, req.Entry.Name), err)
}
return &filer_pb.UpdateEntryResponse{}, err
}
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func (fs *FilerServer) cleanupChunks(fullpath string, existingEntry *filer.Entry, newEntry *filer_pb.Entry) (chunks, garbage []*filer_pb.FileChunk, err error) {
// remove old chunks if not included in the new ones
if existingEntry != nil {
garbage, err = filer.MinusChunks(fs.lookupFileId, existingEntry.GetChunks(), newEntry.GetChunks())
if err != nil {
return newEntry.GetChunks(), nil, fmt.Errorf("MinusChunks: %v", err)
}
}
// files with manifest chunks are usually large and append only, skip calculating covered chunks
manifestChunks, nonManifestChunks := filer.SeparateManifestChunks(newEntry.GetChunks())
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chunks, coveredChunks := filer.CompactFileChunks(fs.lookupFileId, nonManifestChunks)
garbage = append(garbage, coveredChunks...)
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if newEntry.Attributes != nil {
so, _ := fs.detectStorageOption(fullpath,
"",
"",
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newEntry.Attributes.TtlSec,
"",
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"",
"",
"",
) // ignore readonly error for capacity needed to manifestize
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chunks, err = filer.MaybeManifestize(fs.saveAsChunk(so), chunks)
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if err != nil {
// not good, but should be ok
glog.V(0).Infof("MaybeManifestize: %v", err)
}
}
chunks = append(chunks, manifestChunks...)
return
}
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func (fs *FilerServer) AppendToEntry(ctx context.Context, req *filer_pb.AppendToEntryRequest) (*filer_pb.AppendToEntryResponse, error) {
glog.V(4).Infof("AppendToEntry %v", req)
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fullpath := util.NewFullPath(req.Directory, req.EntryName)
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lockClient := cluster.NewLockClient(fs.grpcDialOption, fs.option.Host)
lock := lockClient.NewLock(string(fullpath), string(fs.option.Host))
defer lock.StopLock()
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var offset int64 = 0
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entry, err := fs.filer.FindEntry(ctx, fullpath)
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if err == filer_pb.ErrNotFound {
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entry = &filer.Entry{
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FullPath: fullpath,
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Attr: filer.Attr{
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Crtime: time.Now(),
Mtime: time.Now(),
Mode: os.FileMode(0644),
Uid: OS_UID,
Gid: OS_GID,
},
}
} else {
offset = int64(filer.TotalSize(entry.GetChunks()))
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}
for _, chunk := range req.Chunks {
chunk.Offset = offset
offset += int64(chunk.Size)
}
entry.Chunks = append(entry.GetChunks(), req.Chunks...)
so, err := fs.detectStorageOption(string(fullpath), "", "", entry.TtlSec, "", "", "", "")
if err != nil {
glog.Warningf("detectStorageOption: %v", err)
return &filer_pb.AppendToEntryResponse{}, err
}
entry.Chunks, err = filer.MaybeManifestize(fs.saveAsChunk(so), entry.GetChunks())
if err != nil {
// not good, but should be ok
glog.V(0).Infof("MaybeManifestize: %v", err)
}
err = fs.filer.CreateEntry(context.Background(), entry, false, false, nil, false)
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return &filer_pb.AppendToEntryResponse{}, err
}
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func (fs *FilerServer) DeleteEntry(ctx context.Context, req *filer_pb.DeleteEntryRequest) (resp *filer_pb.DeleteEntryResponse, err error) {
glog.V(4).Infof("DeleteEntry %v", req)
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err = fs.filer.DeleteEntryMetaAndData(ctx, util.JoinPath(req.Directory, req.Name), req.IsRecursive, req.IgnoreRecursiveError, req.IsDeleteData, req.IsFromOtherCluster, req.Signatures)
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resp = &filer_pb.DeleteEntryResponse{}
if err != nil && err != filer_pb.ErrNotFound {
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resp.Error = err.Error()
}
return resp, nil
}
func (fs *FilerServer) AssignVolume(ctx context.Context, req *filer_pb.AssignVolumeRequest) (resp *filer_pb.AssignVolumeResponse, err error) {
if req.DiskType == "" {
req.DiskType = fs.option.DiskType
}
so, err := fs.detectStorageOption(req.Path, req.Collection, req.Replication, req.TtlSec, req.DiskType, req.DataCenter, req.Rack, req.DataNode)
if err != nil {
glog.V(3).Infof("AssignVolume: %v", err)
return &filer_pb.AssignVolumeResponse{Error: fmt.Sprintf("assign volume: %v", err)}, nil
}
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assignRequest, altRequest := so.ToAssignRequests(int(req.Count))
assignResult, err := operation.Assign(fs.filer.GetMaster, fs.grpcDialOption, assignRequest, altRequest)
if err != nil {
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glog.V(3).Infof("AssignVolume: %v", err)
return &filer_pb.AssignVolumeResponse{Error: fmt.Sprintf("assign volume: %v", err)}, nil
}
if assignResult.Error != "" {
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glog.V(3).Infof("AssignVolume error: %v", assignResult.Error)
return &filer_pb.AssignVolumeResponse{Error: fmt.Sprintf("assign volume result: %v", assignResult.Error)}, nil
}
return &filer_pb.AssignVolumeResponse{
FileId: assignResult.Fid,
Count: int32(assignResult.Count),
Location: &filer_pb.Location{
Url: assignResult.Url,
PublicUrl: assignResult.PublicUrl,
GrpcPort: uint32(assignResult.GrpcPort),
},
Auth: string(assignResult.Auth),
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Collection: so.Collection,
Replication: so.Replication,
}, nil
}
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func (fs *FilerServer) CollectionList(ctx context.Context, req *filer_pb.CollectionListRequest) (resp *filer_pb.CollectionListResponse, err error) {
glog.V(4).Infof("CollectionList %v", req)
resp = &filer_pb.CollectionListResponse{}
err = fs.filer.MasterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
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masterResp, err := client.CollectionList(context.Background(), &master_pb.CollectionListRequest{
IncludeNormalVolumes: req.IncludeNormalVolumes,
IncludeEcVolumes: req.IncludeEcVolumes,
})
if err != nil {
return err
}
for _, c := range masterResp.Collections {
resp.Collections = append(resp.Collections, &filer_pb.Collection{Name: c.Name})
}
return nil
})
return
}
func (fs *FilerServer) DeleteCollection(ctx context.Context, req *filer_pb.DeleteCollectionRequest) (resp *filer_pb.DeleteCollectionResponse, err error) {
glog.V(4).Infof("DeleteCollection %v", req)
err = fs.filer.MasterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
_, err := client.CollectionDelete(context.Background(), &master_pb.CollectionDeleteRequest{
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Name: req.GetCollection(),
})
return err
})
return &filer_pb.DeleteCollectionResponse{}, err
}