oyd
/
minio
6
1
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Delete temp object/part when PutObject{,Part} fails (#3004)

Browse Source
master
Krishnan Parthasarathi 8 years ago committed by Harshavardhana
parent 7d50361ca9
commit 6fc81dc162
4 changed files with 23 additions and 29 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 12
      cmd/fs-v1-multipart.go
  2. 11
      cmd/fs-v1.go
  3. 8
      cmd/xl-v1-multipart.go
  4. 21
      cmd/xl-v1-object.go

12
cmd/fs-v1-multipart.go
Unescape View File

@ -462,11 +462,14 @@ func (fs fsObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
return "", traceError(IncompleteBody{})
}
// Delete temporary part in case of failure. If
// PutObjectPart succeeds then there would be nothing to
// delete.
defer fs.storage.DeleteFile(minioMetaBucket, tmpPartPath)
newMD5Hex := hex.EncodeToString(md5Writer.Sum(nil))
if md5Hex != "" {
if newMD5Hex != md5Hex {
// MD5 mismatch, delete the temporary object.
fs.storage.DeleteFile(minioMetaBucket, tmpPartPath)
return "", traceError(BadDigest{md5Hex, newMD5Hex})
}
}
@ -474,8 +477,6 @@ func (fs fsObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
if sha256sum != "" {
newSHA256sum := hex.EncodeToString(sha256Writer.Sum(nil))
if newSHA256sum != sha256sum {
// SHA256 mismatch, delete the temporary object.
fs.storage.DeleteFile(minioMetaBucket, tmpPartPath)
return "", traceError(SHA256Mismatch{})
}
}
@ -504,9 +505,6 @@ func (fs fsObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
partPath := path.Join(mpartMetaPrefix, bucket, object, uploadID, partSuffix)
err = fs.storage.RenameFile(minioMetaBucket, tmpPartPath, minioMetaBucket, partPath)
if err != nil {
if dErr := fs.storage.DeleteFile(minioMetaBucket, tmpPartPath); dErr != nil {
return "", toObjectErr(traceError(dErr), minioMetaBucket, tmpPartPath)
}
return "", toObjectErr(traceError(err), minioMetaBucket, partPath)
}
uploadIDPath = path.Join(mpartMetaPrefix, bucket, object, uploadID)

11
cmd/fs-v1.go
Unescape View File

@ -384,6 +384,7 @@ func (fs fsObjects) PutObject(bucket string, object string, size int64, data io.
// For size 0 we write a 0byte file.
err = fs.storage.AppendFile(minioMetaBucket, tempObj, []byte(""))
if err != nil {
fs.storage.DeleteFile(minioMetaBucket, tempObj)
return ObjectInfo{}, toObjectErr(traceError(err), bucket, object)
}
} else {
@ -397,8 +398,8 @@ func (fs fsObjects) PutObject(bucket string, object string, size int64, data io.
var bytesWritten int64
bytesWritten, err = fsCreateFile(fs.storage, teeReader, buf, minioMetaBucket, tempObj)
if err != nil {
errorIf(err, "Failed to create object %s/%s", bucket, object)
fs.storage.DeleteFile(minioMetaBucket, tempObj)
errorIf(err, "Failed to create object %s/%s", bucket, object)
return ObjectInfo{}, toObjectErr(err, bucket, object)
}
@ -409,6 +410,10 @@ func (fs fsObjects) PutObject(bucket string, object string, size int64, data io.
return ObjectInfo{}, traceError(IncompleteBody{})
}
}
// Delete the temporary object in the case of a
// failure. If PutObject succeeds, then there would be
// nothing to delete.
defer fs.storage.DeleteFile(minioMetaBucket, tempObj)
newMD5Hex := hex.EncodeToString(md5Writer.Sum(nil))
// Update the md5sum if not set with the newly calculated one.
@ -420,8 +425,6 @@ func (fs fsObjects) PutObject(bucket string, object string, size int64, data io.
md5Hex := metadata["md5Sum"]
if md5Hex != "" {
if newMD5Hex != md5Hex {
// MD5 mismatch, delete the temporary object.
fs.storage.DeleteFile(minioMetaBucket, tempObj)
// Returns md5 mismatch.
return ObjectInfo{}, traceError(BadDigest{md5Hex, newMD5Hex})
}
@ -430,8 +433,6 @@ func (fs fsObjects) PutObject(bucket string, object string, size int64, data io.
if sha256sum != "" {
newSHA256sum := hex.EncodeToString(sha256Writer.Sum(nil))
if newSHA256sum != sha256sum {
// SHA256 mismatch, delete the temporary object.
fs.storage.DeleteFile(minioMetaBucket, tempObj)
return ObjectInfo{}, traceError(SHA256Mismatch{})
}
}

8
cmd/xl-v1-multipart.go
Unescape View File

@ -413,11 +413,15 @@ func (xl xlObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
// Construct a tee reader for md5sum.
teeReader := io.TeeReader(lreader, mw)
// Delete the temporary object part. If PutObjectPart succeeds there would be nothing to delete.
defer xl.deleteObject(minioMetaBucket, tmpPartPath)
// Erasure code data and write across all disks.
sizeWritten, checkSums, err := erasureCreateFile(onlineDisks, minioMetaBucket, tmpPartPath, teeReader, xlMeta.Erasure.BlockSize, xl.dataBlocks, xl.parityBlocks, bitRotAlgo, xl.writeQuorum)
if err != nil {
return "", toObjectErr(err, bucket, object)
}
// Should return IncompleteBody{} error when reader has fewer bytes
// than specified in request header.
if sizeWritten < size {
@ -434,8 +438,6 @@ func (xl xlObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
newMD5Hex := hex.EncodeToString(md5Writer.Sum(nil))
if md5Hex != "" {
if newMD5Hex != md5Hex {
// MD5 mismatch, delete the temporary object.
xl.deleteObject(minioMetaBucket, tmpPartPath)
// Returns md5 mismatch.
return "", traceError(BadDigest{md5Hex, newMD5Hex})
}
@ -444,8 +446,6 @@ func (xl xlObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
if sha256sum != "" {
newSHA256sum := hex.EncodeToString(sha256Writer.Sum(nil))
if newSHA256sum != sha256sum {
// SHA256 mismatch, delete the temporary object.
xl.deleteObject(minioMetaBucket, tmpPartPath)
return "", traceError(SHA256Mismatch{})
}
}

21
cmd/xl-v1-object.go
Unescape View File

@ -443,18 +443,19 @@ func (xl xlObjects) PutObject(bucket string, object string, size int64, data io.
onlineDisks := getOrderedDisks(xlMeta.Erasure.Distribution, xl.storageDisks)
// Delete temporary object in the event of failure. If
// PutObject succeeded there would be no temporary object to
// delete.
defer xl.deleteObject(minioMetaTmpBucket, tempObj)
// Erasure code data and write across all disks.
sizeWritten, checkSums, err := erasureCreateFile(onlineDisks, minioMetaBucket, tempErasureObj, teeReader, xlMeta.Erasure.BlockSize, xlMeta.Erasure.DataBlocks, xlMeta.Erasure.ParityBlocks, bitRotAlgo, xl.writeQuorum)
if err != nil {
// Create file failed, delete temporary object.
xl.deleteObject(minioMetaTmpBucket, tempObj)
return ObjectInfo{}, toObjectErr(err, minioMetaBucket, tempErasureObj)
}
// Should return IncompleteBody{} error when reader has fewer bytes
// than specified in request header.
if sizeWritten < size {
// Short write, delete temporary object.
xl.deleteObject(minioMetaTmpBucket, tempObj)
return ObjectInfo{}, traceError(IncompleteBody{})
}
@ -486,8 +487,6 @@ func (xl xlObjects) PutObject(bucket string, object string, size int64, data io.
md5Hex := metadata["md5Sum"]
if md5Hex != "" {
if newMD5Hex != md5Hex {
// MD5 mismatch, delete the temporary object.
xl.deleteObject(minioMetaTmpBucket, tempObj)
// Returns md5 mismatch.
return ObjectInfo{}, traceError(BadDigest{md5Hex, newMD5Hex})
}
@ -496,8 +495,6 @@ func (xl xlObjects) PutObject(bucket string, object string, size int64, data io.
if sha256sum != "" {
newSHA256sum := hex.EncodeToString(sha256Writer.Sum(nil))
if newSHA256sum != sha256sum {
// SHA256 mismatch, delete the temporary object.
xl.deleteObject(minioMetaBucket, tempObj)
return ObjectInfo{}, traceError(SHA256Mismatch{})
}
}
@ -514,14 +511,15 @@ func (xl xlObjects) PutObject(bucket string, object string, size int64, data io.
// Check if an object is present as one of the parent dir.
// -- FIXME. (needs a new kind of lock).
if xl.parentDirIsObject(bucket, path.Dir(object)) {
// Parent (in the namespace) is an object, delete temporary object.
xl.deleteObject(minioMetaTmpBucket, tempObj)
return ObjectInfo{}, toObjectErr(traceError(errFileAccessDenied), bucket, object)
}
// Rename if an object already exists to temporary location.
newUniqueID := getUUID()
if xl.isObject(bucket, object) {
// Delete the temporary copy of the object that existed before this PutObject request.
defer xl.deleteObject(minioMetaTmpBucket, newUniqueID)
// NOTE: Do not use online disks slice here.
// The reason is that existing object should be purged
// regardless of `xl.json` status and rolled back in case of errors.
@ -561,9 +559,6 @@ func (xl xlObjects) PutObject(bucket string, object string, size int64, data io.
return ObjectInfo{}, toObjectErr(err, bucket, object)
}
// Delete the temporary object.
xl.deleteObject(minioMetaTmpBucket, newUniqueID)
// Once we have successfully renamed the object, Close the buffer which would
// save the object on cache.
if size > 0 && xl.objCacheEnabled && newBuffer != nil {

Write Preview
Loading…
Cancel
Save