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weed replicate: replicate atomic rename to other systems

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This commit is contained in:
Chris Lu 2019-03-31 08:10:47 -07:00
parent 8c823abe1f
commit 189c890715
1 changed files with 26 additions and 9 deletions
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35
weed/server/filer_grpc_server_rename.go
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@ -24,7 +24,8 @@ func (fs *FilerServer) AtomicRenameEntry(ctx context.Context, req *filer_pb.Atom
return nil, fmt.Errorf("%s/%s not found: %v", req.OldDirectory, req.OldName, err)
}
moveErr := fs.moveEntry(ctx, oldParent, oldEntry, filer2.FullPath(filepath.ToSlash(req.NewDirectory)), req.NewName)
var events MoveEvents
moveErr := fs.moveEntry(ctx, oldParent, oldEntry, filer2.FullPath(filepath.ToSlash(req.NewDirectory)), req.NewName, &events)
if moveErr != nil {
fs.filer.RollbackTransaction(ctx)
return nil, fmt.Errorf("%s/%s move error: %v", req.OldDirectory, req.OldName, err)
@ -35,19 +36,26 @@ func (fs *FilerServer) AtomicRenameEntry(ctx context.Context, req *filer_pb.Atom
}
}
for _, entry := range events.newEntries {
fs.filer.NotifyUpdateEvent(nil, entry, false)
}
for _, entry := range events.oldEntries {
fs.filer.NotifyUpdateEvent(entry, nil, false)
}
return &filer_pb.AtomicRenameEntryResponse{}, nil
}
func (fs *FilerServer) moveEntry(ctx context.Context, oldParent filer2.FullPath, entry *filer2.Entry, newParent filer2.FullPath, newName string) error {
func (fs *FilerServer) moveEntry(ctx context.Context, oldParent filer2.FullPath, entry *filer2.Entry, newParent filer2.FullPath, newName string, events *MoveEvents) error {
if entry.IsDirectory() {
if err := fs.moveFolderSubEntries(ctx, oldParent, entry, newParent, newName); err != nil {
if err := fs.moveFolderSubEntries(ctx, oldParent, entry, newParent, newName, events); err != nil {
return err
}
}
return fs.moveSelfEntry(ctx, oldParent, entry, newParent, newName)
return fs.moveSelfEntry(ctx, oldParent, entry, newParent, newName, events)
}
func (fs *FilerServer) moveFolderSubEntries(ctx context.Context, oldParent filer2.FullPath, entry *filer2.Entry, newParent filer2.FullPath, newName string) error {
func (fs *FilerServer) moveFolderSubEntries(ctx context.Context, oldParent filer2.FullPath, entry *filer2.Entry, newParent filer2.FullPath, newName string, events *MoveEvents) error {
currentDirPath := oldParent.Child(entry.Name())
newDirPath := newParent.Child(newName)
@ -68,7 +76,7 @@ func (fs *FilerServer) moveFolderSubEntries(ctx context.Context, oldParent filer
for _, item := range entries {
lastFileName = item.Name()
println("processing", lastFileName)
err := fs.moveEntry(ctx, currentDirPath, item, newDirPath, item.Name())
err := fs.moveEntry(ctx, currentDirPath, item, newDirPath, item.Name(), events)
if err != nil {
return err
}
@ -80,18 +88,19 @@ func (fs *FilerServer) moveFolderSubEntries(ctx context.Context, oldParent filer
return nil
}
func (fs *FilerServer) moveSelfEntry(ctx context.Context, oldParent filer2.FullPath, entry *filer2.Entry, newParent filer2.FullPath, newName string) error {
func (fs *FilerServer) moveSelfEntry(ctx context.Context, oldParent filer2.FullPath, entry *filer2.Entry, newParent filer2.FullPath, newName string, events *MoveEvents) (error) {
oldPath, newPath := oldParent.Child(entry.Name()), newParent.Child(newName)
glog.V(1).Infof("moving entry %s => %s", oldPath, newPath)
// add to new directory
createErr := fs.filer.CreateEntry(ctx, &filer2.Entry{
newEntry := &filer2.Entry{
FullPath: newPath,
Attr: entry.Attr,
Chunks: entry.Chunks,
})
}
createErr := fs.filer.CreateEntry(ctx, newEntry)
if createErr != nil {
return createErr
}
@ -101,6 +110,14 @@ func (fs *FilerServer) moveSelfEntry(ctx context.Context, oldParent filer2.FullP
if deleteErr != nil {
return deleteErr
}
events.oldEntries = append(events.oldEntries, entry)
events.newEntries = append(events.newEntries, newEntry)
return nil
}
type MoveEvents struct {
oldEntries []*filer2.Entry
newEntries []*filer2.Entry
}