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repository: retry failed LoadBlob once

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This commit is contained in:
Michael Eischer 2024-05-09 15:44:05 +02:00
parent 2ace242f36
commit e33ce7f408
1 changed files with 19 additions and 3 deletions
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22
internal/repository/repository.go
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@ -235,11 +235,27 @@ func (r *Repository) LoadBlob(ctx context.Context, t restic.BlobType, id restic.
// try cached pack files first
sortCachedPacksFirst(r.Cache, blobs)
buf, err := r.loadBlob(ctx, blobs, buf)
if err != nil {
if r.Cache != nil {
for _, blob := range blobs {
h := backend.Handle{Type: restic.PackFile, Name: blob.PackID.String(), IsMetadata: blob.Type.IsMetadata()}
// ignore errors as there's not much we can do here
_ = r.Cache.Forget(h)
}
}
buf, err = r.loadBlob(ctx, blobs, buf)
}
return buf, err
}
func (r *Repository) loadBlob(ctx context.Context, blobs []restic.PackedBlob, buf []byte) ([]byte, error) {
var lastError error
for _, blob := range blobs {
debug.Log("blob %v/%v found: %v", t, id, blob)
debug.Log("blob %v found: %v", blob.BlobHandle, blob)
// load blob from pack
h := backend.Handle{Type: restic.PackFile, Name: blob.PackID.String(), IsMetadata: t.IsMetadata()}
h := backend.Handle{Type: restic.PackFile, Name: blob.PackID.String(), IsMetadata: blob.Type.IsMetadata()}
switch {
case cap(buf) < int(blob.Length):
@ -281,7 +297,7 @@ func (r *Repository) LoadBlob(ctx context.Context, t restic.BlobType, id restic.
return nil, lastError
}
return nil, errors.Errorf("loading blob %v from %v packs failed", id.Str(), len(blobs))
return nil, errors.Errorf("loading %v from %v packs failed", blobs[0].BlobHandle, len(blobs))
}
// LookupBlobSize returns the size of blob id.