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rename: delete source entry metadata only, skipping hard links

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This commit is contained in:
chrislu
2022-02-25 02:57:54 -08:00
parent 8080fe4cc1
commit 03466f955e
5 changed files with 36 additions and 7 deletions
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18
weed/mount/meta_cache/meta_cache.go
View File

@@ -62,7 +62,7 @@ func (mc *MetaCache) doInsertEntry(ctx context.Context, entry *filer.Entry) erro
return mc.localStore.InsertEntry(ctx, entry)
}
func (mc *MetaCache) AtomicUpdateEntryFromFiler(ctx context.Context, oldPath util.FullPath, newEntry *filer.Entry) error {
func (mc *MetaCache) AtomicUpdateEntryFromFiler(ctx context.Context, oldPath util.FullPath, newEntry *filer.Entry, shouldDeleteChunks bool) error {
//mc.Lock()
//defer mc.Unlock()
@@ -74,8 +74,14 @@ func (mc *MetaCache) AtomicUpdateEntryFromFiler(ctx context.Context, oldPath uti
// leave the update to the following InsertEntry operation
} else {
glog.V(3).Infof("DeleteEntry %s", oldPath)
if err := mc.localStore.DeleteEntry(ctx, oldPath); err != nil {
return err
if shouldDeleteChunks {
if err := mc.localStore.DeleteEntry(ctx, oldPath); err != nil {
return err
}
} else {
if err := mc.localStore.DeleteOneEntrySkipHardlink(ctx, oldPath); err != nil {
return err
}
}
}
}
@@ -112,6 +118,12 @@ func (mc *MetaCache) FindEntry(ctx context.Context, fp util.FullPath) (entry *fi
return
}
func (mc *MetaCache) DeleteEntrySkipHardlink(ctx context.Context, fp util.FullPath) (err error) {
//mc.Lock()
//defer mc.Unlock()
return mc.localStore.DeleteOneEntrySkipHardlink(ctx, fp)
}
func (mc *MetaCache) DeleteEntry(ctx context.Context, fp util.FullPath) (err error) {
//mc.Lock()
//defer mc.Unlock()

2
weed/mount/meta_cache/meta_cache_subscribe.go
View File

@@ -36,7 +36,7 @@ func SubscribeMetaEvents(mc *MetaCache, selfSignature int32, client filer_pb.Fil
glog.V(4).Infof("creating %v", key)
newEntry = filer.FromPbEntry(dir, message.NewEntry)
}
err := mc.AtomicUpdateEntryFromFiler(context.Background(), oldPath, newEntry)
err := mc.AtomicUpdateEntryFromFiler(context.Background(), oldPath, newEntry, message.DeleteChunks)
if err == nil {
if message.OldEntry != nil && message.NewEntry != nil {
oldKey := util.NewFullPath(resp.Directory, message.OldEntry.Name)

4
weed/mount/weedfs_rename.go
View File

@@ -217,7 +217,7 @@ func (wfs *WFS) handleRenameResponse(ctx context.Context, resp *filer_pb.StreamR
if resp.EventNotification.NewEntry != nil {
// with new entry, the old entry name also exists. This is the first step to create new entry
newEntry := filer.FromPbEntry(resp.EventNotification.NewParentPath, resp.EventNotification.NewEntry)
if err := wfs.metaCache.AtomicUpdateEntryFromFiler(ctx, "", newEntry); err != nil {
if err := wfs.metaCache.AtomicUpdateEntryFromFiler(ctx, "", newEntry, false); err != nil {
return err
}
@@ -231,7 +231,7 @@ func (wfs *WFS) handleRenameResponse(ctx context.Context, resp *filer_pb.StreamR
} else if resp.EventNotification.OldEntry != nil {
// without new entry, only old entry name exists. This is the second step to delete old entry
if err := wfs.metaCache.AtomicUpdateEntryFromFiler(ctx, util.NewFullPath(resp.Directory, resp.EventNotification.OldEntry.Name), nil); err != nil {
if err := wfs.metaCache.AtomicUpdateEntryFromFiler(ctx, util.NewFullPath(resp.Directory, resp.EventNotification.OldEntry.Name), nil, resp.EventNotification.DeleteChunks); err != nil {
return err
}
}