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minio/cmd/fs-v1-multipart.go

900 lines
27 KiB

/*
* MinIO Cloud Storage, (C) 2016, 2017, 2018 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"context"
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"os"
pathutil "path"
"sort"
"strconv"
"strings"
"time"
jsoniter "github.com/json-iterator/go"
"github.com/minio/minio/cmd/logger"
mioutil "github.com/minio/minio/pkg/ioutil"
"github.com/minio/minio/pkg/trie"
)
// Returns EXPORT/.minio.sys/multipart/SHA256/UPLOADID
func (fs *FSObjects) getUploadIDDir(bucket, object, uploadID string) string {
return pathJoin(fs.fsPath, minioMetaMultipartBucket, getSHA256Hash([]byte(pathJoin(bucket, object))), uploadID)
}
// Returns EXPORT/.minio.sys/multipart/SHA256
func (fs *FSObjects) getMultipartSHADir(bucket, object string) string {
return pathJoin(fs.fsPath, minioMetaMultipartBucket, getSHA256Hash([]byte(pathJoin(bucket, object))))
}
// Returns partNumber.etag
func (fs *FSObjects) encodePartFile(partNumber int, etag string, actualSize int64) string {
return fmt.Sprintf("%.5d.%s.%d", partNumber, etag, actualSize)
}
// Returns partNumber and etag
func (fs *FSObjects) decodePartFile(name string) (partNumber int, etag string, actualSize int64, err error) {
result := strings.Split(name, ".")
if len(result) != 3 {
return 0, "", 0, errUnexpected
}
partNumber, err = strconv.Atoi(result[0])
if err != nil {
return 0, "", 0, errUnexpected
}
actualSize, err = strconv.ParseInt(result[2], 10, 64)
if err != nil {
return 0, "", 0, errUnexpected
}
return partNumber, result[1], actualSize, nil
}
// Appends parts to an appendFile sequentially.
func (fs *FSObjects) backgroundAppend(ctx context.Context, bucket, object, uploadID string) {
fs.appendFileMapMu.Lock()
logger.GetReqInfo(ctx).AppendTags("uploadID", uploadID)
file := fs.appendFileMap[uploadID]
if file == nil {
file = &fsAppendFile{
filePath: pathJoin(fs.fsPath, minioMetaTmpBucket, fs.fsUUID, fmt.Sprintf("%s.%s", uploadID, mustGetUUID())),
}
fs.appendFileMap[uploadID] = file
}
fs.appendFileMapMu.Unlock()
file.Lock()
defer file.Unlock()
// Since we append sequentially nextPartNumber will always be len(file.parts)+1
nextPartNumber := len(file.parts) + 1
uploadIDDir := fs.getUploadIDDir(bucket, object, uploadID)
entries, err := readDir(uploadIDDir)
if err != nil {
logger.GetReqInfo(ctx).AppendTags("uploadIDDir", uploadIDDir)
logger.LogIf(ctx, err)
return
}
sort.Strings(entries)
for _, entry := range entries {
if entry == fs.metaJSONFile {
continue
}
partNumber, etag, actualSize, err := fs.decodePartFile(entry)
if err != nil {
// Skip part files whose name don't match expected format. These could be backend filesystem specific files.
continue
}
if partNumber < nextPartNumber {
// Part already appended.
continue
}
if partNumber > nextPartNumber {
// Required part number is not yet uploaded.
return
}
partPath := pathJoin(uploadIDDir, entry)
err = mioutil.AppendFile(file.filePath, partPath, globalFSOSync)
if err != nil {
reqInfo := logger.GetReqInfo(ctx).AppendTags("partPath", partPath)
reqInfo.AppendTags("filepath", file.filePath)
logger.LogIf(ctx, err)
return
}
file.parts = append(file.parts, PartInfo{PartNumber: partNumber, ETag: etag, ActualSize: actualSize})
nextPartNumber++
}
}
// ListMultipartUploads - lists all the uploadIDs for the specified object.
// We do not support prefix based listing.
func (fs *FSObjects) ListMultipartUploads(ctx context.Context, bucket, object, keyMarker, uploadIDMarker, delimiter string, maxUploads int) (result ListMultipartsInfo, e error) {
if err := checkListMultipartArgs(ctx, bucket, object, keyMarker, uploadIDMarker, delimiter, fs); err != nil {
return result, toObjectErr(err)
}
if _, err := fs.statBucketDir(ctx, bucket); err != nil {
return result, toObjectErr(err, bucket)
}
result.MaxUploads = maxUploads
result.KeyMarker = keyMarker
result.Prefix = object
result.Delimiter = delimiter
result.NextKeyMarker = object
result.UploadIDMarker = uploadIDMarker
uploadIDs, err := readDir(fs.getMultipartSHADir(bucket, object))
if err != nil {
if err == errFileNotFound {
result.IsTruncated = false
return result, nil
}
logger.LogIf(ctx, err)
return result, toObjectErr(err)
}
// S3 spec says uploadIDs should be sorted based on initiated time. ModTime of fs.json
// is the creation time of the uploadID, hence we will use that.
var uploads []MultipartInfo
for _, uploadID := range uploadIDs {
metaFilePath := pathJoin(fs.getMultipartSHADir(bucket, object), uploadID, fs.metaJSONFile)
fi, err := fsStatFile(ctx, metaFilePath)
if err != nil {
return result, toObjectErr(err, bucket, object)
}
uploads = append(uploads, MultipartInfo{
Object: object,
UploadID: strings.TrimSuffix(uploadID, SlashSeparator),
Initiated: fi.ModTime(),
})
}
sort.Slice(uploads, func(i int, j int) bool {
return uploads[i].Initiated.Before(uploads[j].Initiated)
})
uploadIndex := 0
if uploadIDMarker != "" {
for uploadIndex < len(uploads) {
if uploads[uploadIndex].UploadID != uploadIDMarker {
uploadIndex++
continue
}
if uploads[uploadIndex].UploadID == uploadIDMarker {
uploadIndex++
break
}
uploadIndex++
}
}
for uploadIndex < len(uploads) {
result.Uploads = append(result.Uploads, uploads[uploadIndex])
result.NextUploadIDMarker = uploads[uploadIndex].UploadID
uploadIndex++
if len(result.Uploads) == maxUploads {
break
}
}
result.IsTruncated = uploadIndex < len(uploads)
if !result.IsTruncated {
result.NextKeyMarker = ""
result.NextUploadIDMarker = ""
}
return result, nil
}
// NewMultipartUpload - initialize a new multipart upload, returns a
// unique id. The unique id returned here is of UUID form, for each
// subsequent request each UUID is unique.
//
// Implements S3 compatible initiate multipart API.
func (fs *FSObjects) NewMultipartUpload(ctx context.Context, bucket, object string, opts ObjectOptions) (string, error) {
if err := checkNewMultipartArgs(ctx, bucket, object, fs); err != nil {
return "", toObjectErr(err, bucket)
}
if _, err := fs.statBucketDir(ctx, bucket); err != nil {
return "", toObjectErr(err, bucket)
}
uploadID := mustGetUUID()
uploadIDDir := fs.getUploadIDDir(bucket, object, uploadID)
err := mkdirAll(uploadIDDir, 0755)
if err != nil {
logger.LogIf(ctx, err)
return "", err
}
// Initialize fs.json values.
fsMeta := newFSMetaV1()
fsMeta.Meta = opts.UserDefined
fsMetaBytes, err := json.Marshal(fsMeta)
if err != nil {
logger.LogIf(ctx, err)
return "", err
}
if err = ioutil.WriteFile(pathJoin(uploadIDDir, fs.metaJSONFile), fsMetaBytes, 0644); err != nil {
logger.LogIf(ctx, err)
return "", err
}
return uploadID, nil
}
// CopyObjectPart - similar to PutObjectPart but reads data from an existing
// object. Internally incoming data is written to '.minio.sys/tmp' location
// and safely renamed to '.minio.sys/multipart' for reach parts.
func (fs *FSObjects) CopyObjectPart(ctx context.Context, srcBucket, srcObject, dstBucket, dstObject, uploadID string, partID int,
startOffset int64, length int64, srcInfo ObjectInfo, srcOpts, dstOpts ObjectOptions) (pi PartInfo, e error) {
if srcOpts.VersionID != "" && srcOpts.VersionID != nullVersionID {
return pi, VersionNotFound{
Bucket: srcBucket,
Object: srcObject,
VersionID: srcOpts.VersionID,
}
}
if err := checkNewMultipartArgs(ctx, srcBucket, srcObject, fs); err != nil {
return pi, toObjectErr(err)
}
partInfo, err := fs.PutObjectPart(ctx, dstBucket, dstObject, uploadID, partID, srcInfo.PutObjReader, dstOpts)
if err != nil {
return pi, toObjectErr(err, dstBucket, dstObject)
}
return partInfo, nil
}
// PutObjectPart - reads incoming data until EOF for the part file on
// an ongoing multipart transaction. Internally incoming data is
// written to '.minio.sys/tmp' location and safely renamed to
// '.minio.sys/multipart' for reach parts.
func (fs *FSObjects) PutObjectPart(ctx context.Context, bucket, object, uploadID string, partID int, r *PutObjReader, opts ObjectOptions) (pi PartInfo, e error) {
if opts.VersionID != "" && opts.VersionID != nullVersionID {
return pi, VersionNotFound{
Bucket: bucket,
Object: object,
VersionID: opts.VersionID,
}
}
data := r.Reader
if err := checkPutObjectPartArgs(ctx, bucket, object, fs); err != nil {
return pi, toObjectErr(err, bucket)
}
if _, err := fs.statBucketDir(ctx, bucket); err != nil {
return pi, toObjectErr(err, bucket)
}
// Validate input data size and it can never be less than -1.
if data.Size() < -1 {
logger.LogIf(ctx, errInvalidArgument, logger.Application)
return pi, toObjectErr(errInvalidArgument)
}
uploadIDDir := fs.getUploadIDDir(bucket, object, uploadID)
// Just check if the uploadID exists to avoid copy if it doesn't.
_, err := fsStatFile(ctx, pathJoin(uploadIDDir, fs.metaJSONFile))
if err != nil {
if err == errFileNotFound || err == errFileAccessDenied {
return pi, InvalidUploadID{Bucket: bucket, Object: object, UploadID: uploadID}
}
return pi, toObjectErr(err, bucket, object)
}
tmpPartPath := pathJoin(fs.fsPath, minioMetaTmpBucket, fs.fsUUID, uploadID+"."+mustGetUUID()+"."+strconv.Itoa(partID))
bytesWritten, err := fsCreateFile(ctx, tmpPartPath, data, data.Size())
// Delete temporary part in case of failure. If
// PutObjectPart succeeds then there would be nothing to
// delete in which case we just ignore the error.
defer fsRemoveFile(ctx, tmpPartPath)
if err != nil {
return pi, toObjectErr(err, minioMetaTmpBucket, tmpPartPath)
}
// Should return IncompleteBody{} error when reader has fewer
// bytes than specified in request header.
if bytesWritten < data.Size() {
return pi, IncompleteBody{Bucket: bucket, Object: object}
}
etag := r.MD5CurrentHexString()
if etag == "" {
etag = GenETag()
}
partPath := pathJoin(uploadIDDir, fs.encodePartFile(partID, etag, data.ActualSize()))
// Make sure not to create parent directories if they don't exist - the upload might have been aborted.
if err = fsSimpleRenameFile(ctx, tmpPartPath, partPath); err != nil {
if err == errFileNotFound || err == errFileAccessDenied {
return pi, InvalidUploadID{Bucket: bucket, Object: object, UploadID: uploadID}
}
return pi, toObjectErr(err, minioMetaMultipartBucket, partPath)
}
go fs.backgroundAppend(ctx, bucket, object, uploadID)
fi, err := fsStatFile(ctx, partPath)
if err != nil {
return pi, toObjectErr(err, minioMetaMultipartBucket, partPath)
}
return PartInfo{
PartNumber: partID,
LastModified: fi.ModTime(),
ETag: etag,
Size: fi.Size(),
ActualSize: data.ActualSize(),
}, nil
}
// GetMultipartInfo returns multipart metadata uploaded during newMultipartUpload, used
// by callers to verify object states
// - encrypted
// - compressed
func (fs *FSObjects) GetMultipartInfo(ctx context.Context, bucket, object, uploadID string, opts ObjectOptions) (MultipartInfo, error) {
minfo := MultipartInfo{
Bucket: bucket,
Object: object,
UploadID: uploadID,
}
if err := checkListPartsArgs(ctx, bucket, object, fs); err != nil {
return minfo, toObjectErr(err)
}
// Check if bucket exists
if _, err := fs.statBucketDir(ctx, bucket); err != nil {
return minfo, toObjectErr(err, bucket)
}
uploadIDDir := fs.getUploadIDDir(bucket, object, uploadID)
if _, err := fsStatFile(ctx, pathJoin(uploadIDDir, fs.metaJSONFile)); err != nil {
if err == errFileNotFound || err == errFileAccessDenied {
return minfo, InvalidUploadID{Bucket: bucket, Object: object, UploadID: uploadID}
}
return minfo, toObjectErr(err, bucket, object)
}
fsMetaBytes, err := ioutil.ReadFile(pathJoin(uploadIDDir, fs.metaJSONFile))
if err != nil {
logger.LogIf(ctx, err)
return minfo, toObjectErr(err, bucket, object)
}
var fsMeta fsMetaV1
var json = jsoniter.ConfigCompatibleWithStandardLibrary
if err = json.Unmarshal(fsMetaBytes, &fsMeta); err != nil {
return minfo, toObjectErr(err, bucket, object)
}
minfo.UserDefined = fsMeta.Meta
return minfo, nil
}
// ListObjectParts - lists all previously uploaded parts for a given
// object and uploadID. Takes additional input of part-number-marker
// to indicate where the listing should begin from.
//
// Implements S3 compatible ListObjectParts API. The resulting
// ListPartsInfo structure is unmarshalled directly into XML and
// replied back to the client.
func (fs *FSObjects) ListObjectParts(ctx context.Context, bucket, object, uploadID string, partNumberMarker, maxParts int, opts ObjectOptions) (result ListPartsInfo, e error) {
if err := checkListPartsArgs(ctx, bucket, object, fs); err != nil {
return result, toObjectErr(err)
}
result.Bucket = bucket
result.Object = object
result.UploadID = uploadID
result.MaxParts = maxParts
result.PartNumberMarker = partNumberMarker
// Check if bucket exists
if _, err := fs.statBucketDir(ctx, bucket); err != nil {
return result, toObjectErr(err, bucket)
}
uploadIDDir := fs.getUploadIDDir(bucket, object, uploadID)
if _, err := fsStatFile(ctx, pathJoin(uploadIDDir, fs.metaJSONFile)); err != nil {
if err == errFileNotFound || err == errFileAccessDenied {
return result, InvalidUploadID{Bucket: bucket, Object: object, UploadID: uploadID}
}
return result, toObjectErr(err, bucket, object)
}
entries, err := readDir(uploadIDDir)
if err != nil {
logger.LogIf(ctx, err)
return result, toObjectErr(err, bucket)
}
partsMap := make(map[int]PartInfo)
for _, entry := range entries {
if entry == fs.metaJSONFile {
continue
}
partNumber, currentEtag, actualSize, derr := fs.decodePartFile(entry)
if derr != nil {
// Skip part files whose name don't match expected format. These could be backend filesystem specific files.
continue
}
entryStat, err := fsStatFile(ctx, pathJoin(uploadIDDir, entry))
if err != nil {
continue
}
currentMeta := PartInfo{
PartNumber: partNumber,
ETag: currentEtag,
ActualSize: actualSize,
Size: entryStat.Size(),
LastModified: entryStat.ModTime(),
}
cachedMeta, ok := partsMap[partNumber]
if !ok {
partsMap[partNumber] = currentMeta
continue
}
if currentMeta.LastModified.After(cachedMeta.LastModified) {
partsMap[partNumber] = currentMeta
}
}
var parts []PartInfo
for _, partInfo := range partsMap {
parts = append(parts, partInfo)
}
sort.Slice(parts, func(i int, j int) bool {
return parts[i].PartNumber < parts[j].PartNumber
})
i := 0
if partNumberMarker != 0 {
// If the marker was set, skip the entries till the marker.
for _, part := range parts {
i++
if part.PartNumber == partNumberMarker {
break
}
}
}
partsCount := 0
for partsCount < maxParts && i < len(parts) {
result.Parts = append(result.Parts, parts[i])
i++
partsCount++
}
if i < len(parts) {
result.IsTruncated = true
if partsCount != 0 {
result.NextPartNumberMarker = result.Parts[partsCount-1].PartNumber
}
}
rc, _, err := fsOpenFile(ctx, pathJoin(uploadIDDir, fs.metaJSONFile), 0)
if err != nil {
if err == errFileNotFound || err == errFileAccessDenied {
return result, InvalidUploadID{Bucket: bucket, Object: object, UploadID: uploadID}
}
return result, toObjectErr(err, bucket, object)
}
defer rc.Close()
fsMetaBytes, err := ioutil.ReadAll(rc)
if err != nil {
return result, toObjectErr(err, bucket, object)
}
var fsMeta fsMetaV1
var json = jsoniter.ConfigCompatibleWithStandardLibrary
if err = json.Unmarshal(fsMetaBytes, &fsMeta); err != nil {
return result, err
}
result.UserDefined = fsMeta.Meta
return result, nil
}
// CompleteMultipartUpload - completes an ongoing multipart
// transaction after receiving all the parts indicated by the client.
// Returns an md5sum calculated by concatenating all the individual
// md5sums of all the parts.
//
// Implements S3 compatible Complete multipart API.
func (fs *FSObjects) CompleteMultipartUpload(ctx context.Context, bucket string, object string, uploadID string, parts []CompletePart, opts ObjectOptions) (oi ObjectInfo, e error) {
var actualSize int64
if err := checkCompleteMultipartArgs(ctx, bucket, object, fs); err != nil {
return oi, toObjectErr(err)
}
// Check if an object is present as one of the parent dir.
if fs.parentDirIsObject(ctx, bucket, pathutil.Dir(object)) {
return oi, toObjectErr(errFileParentIsFile, bucket, object)
}
if _, err := fs.statBucketDir(ctx, bucket); err != nil {
return oi, toObjectErr(err, bucket)
}
defer ObjectPathUpdated(pathutil.Join(bucket, object))
uploadIDDir := fs.getUploadIDDir(bucket, object, uploadID)
// Just check if the uploadID exists to avoid copy if it doesn't.
_, err := fsStatFile(ctx, pathJoin(uploadIDDir, fs.metaJSONFile))
if err != nil {
if err == errFileNotFound || err == errFileAccessDenied {
return oi, InvalidUploadID{Bucket: bucket, Object: object, UploadID: uploadID}
}
return oi, toObjectErr(err, bucket, object)
}
// Calculate s3 compatible md5sum for complete multipart.
s3MD5 := getCompleteMultipartMD5(parts)
// ensure that part ETag is canonicalized to strip off extraneous quotes
for i := range parts {
parts[i].ETag = canonicalizeETag(parts[i].ETag)
}
fsMeta := fsMetaV1{}
// Allocate parts similar to incoming slice.
fsMeta.Parts = make([]ObjectPartInfo, len(parts))
entries, err := readDir(uploadIDDir)
if err != nil {
logger.GetReqInfo(ctx).AppendTags("uploadIDDir", uploadIDDir)
logger.LogIf(ctx, err)
return oi, err
}
// Create entries trie structure for prefix match
entriesTrie := trie.NewTrie()
for _, entry := range entries {
entriesTrie.Insert(entry)
}
// Save consolidated actual size.
var objectActualSize int64
// Validate all parts and then commit to disk.
for i, part := range parts {
partFile := getPartFile(entriesTrie, part.PartNumber, part.ETag)
if partFile == "" {
return oi, InvalidPart{
PartNumber: part.PartNumber,
GotETag: part.ETag,
}
}
// Read the actualSize from the pathFileName.
subParts := strings.Split(partFile, ".")
actualSize, err = strconv.ParseInt(subParts[len(subParts)-1], 10, 64)
if err != nil {
return oi, InvalidPart{
PartNumber: part.PartNumber,
GotETag: part.ETag,
}
}
partPath := pathJoin(uploadIDDir, partFile)
var fi os.FileInfo
fi, err = fsStatFile(ctx, partPath)
if err != nil {
if err == errFileNotFound || err == errFileAccessDenied {
return oi, InvalidPart{}
}
return oi, err
}
fsMeta.Parts[i] = ObjectPartInfo{
Number: part.PartNumber,
Size: fi.Size(),
ActualSize: actualSize,
}
// Consolidate the actual size.
objectActualSize += actualSize
if i == len(parts)-1 {
break
}
// All parts except the last part has to be atleast 5MB.
if !isMinAllowedPartSize(actualSize) {
return oi, PartTooSmall{
PartNumber: part.PartNumber,
PartSize: actualSize,
PartETag: part.ETag,
}
}
}
appendFallback := true // In case background-append did not append the required parts.
appendFilePath := pathJoin(fs.fsPath, minioMetaTmpBucket, fs.fsUUID, fmt.Sprintf("%s.%s", uploadID, mustGetUUID()))
// Most of the times appendFile would already be fully appended by now. We call fs.backgroundAppend()
// to take care of the following corner case:
// 1. The last PutObjectPart triggers go-routine fs.backgroundAppend, this go-routine has not started yet.
// 2. Now CompleteMultipartUpload gets called which sees that lastPart is not appended and starts appending
// from the beginning
fs.backgroundAppend(ctx, bucket, object, uploadID)
fs.appendFileMapMu.Lock()
file := fs.appendFileMap[uploadID]
delete(fs.appendFileMap, uploadID)
fs.appendFileMapMu.Unlock()
if file != nil {
file.Lock()
defer file.Unlock()
// Verify that appendFile has all the parts.
if len(file.parts) == len(parts) {
for i := range parts {
if parts[i].ETag != file.parts[i].ETag {
break
}
if parts[i].PartNumber != file.parts[i].PartNumber {
break
}
if i == len(parts)-1 {
appendFilePath = file.filePath
appendFallback = false
}
}
}
}
if appendFallback {
if file != nil {
fsRemoveFile(ctx, file.filePath)
}
for _, part := range parts {
partFile := getPartFile(entriesTrie, part.PartNumber, part.ETag)
if partFile == "" {
logger.LogIf(ctx, fmt.Errorf("%.5d.%s missing will not proceed",
part.PartNumber, part.ETag))
return oi, InvalidPart{
PartNumber: part.PartNumber,
GotETag: part.ETag,
}
}
if err = mioutil.AppendFile(appendFilePath, pathJoin(uploadIDDir, partFile), globalFSOSync); err != nil {
logger.LogIf(ctx, err)
return oi, toObjectErr(err)
}
}
}
// Hold write lock on the object.
destLock := fs.NewNSLock(bucket, object)
if err = destLock.GetLock(ctx, globalOperationTimeout); err != nil {
return oi, err
}
defer destLock.Unlock()
bucketMetaDir := pathJoin(fs.fsPath, minioMetaBucket, bucketMetaPrefix)
fsMetaPath := pathJoin(bucketMetaDir, bucket, object, fs.metaJSONFile)
metaFile, err := fs.rwPool.Write(fsMetaPath)
var freshFile bool
if err != nil {
if !errors.Is(err, errFileNotFound) {
logger.LogIf(ctx, err)
return oi, toObjectErr(err, bucket, object)
}
metaFile, err = fs.rwPool.Create(fsMetaPath)
if err != nil {
logger.LogIf(ctx, err)
return oi, toObjectErr(err, bucket, object)
}
freshFile = true
}
defer metaFile.Close()
defer func() {
// Remove meta file when CompleteMultipart encounters
// any error and it is a fresh file.
//
// We should preserve the `fs.json` of any
// existing object
if e != nil && freshFile {
tmpDir := pathJoin(fs.fsPath, minioMetaTmpBucket, fs.fsUUID)
fsRemoveMeta(ctx, bucketMetaDir, fsMetaPath, tmpDir)
}
}()
// Read saved fs metadata for ongoing multipart.
fsMetaBuf, err := ioutil.ReadFile(pathJoin(uploadIDDir, fs.metaJSONFile))
if err != nil {
logger.LogIf(ctx, err)
return oi, toObjectErr(err, bucket, object)
}
err = json.Unmarshal(fsMetaBuf, &fsMeta)
if err != nil {
logger.LogIf(ctx, err)
return oi, toObjectErr(err, bucket, object)
}
// Save additional metadata.
if fsMeta.Meta == nil {
fsMeta.Meta = make(map[string]string)
}
fsMeta.Meta["etag"] = s3MD5
// Save consolidated actual size.
fsMeta.Meta[ReservedMetadataPrefix+"actual-size"] = strconv.FormatInt(objectActualSize, 10)
if _, err = fsMeta.WriteTo(metaFile); err != nil {
logger.LogIf(ctx, err)
return oi, toObjectErr(err, bucket, object)
}
err = fsRenameFile(ctx, appendFilePath, pathJoin(fs.fsPath, bucket, object))
if err != nil {
logger.LogIf(ctx, err)
return oi, toObjectErr(err, bucket, object)
}
// Purge multipart folders
{
fsTmpObjPath := pathJoin(fs.fsPath, minioMetaTmpBucket, fs.fsUUID, mustGetUUID())
defer fsRemoveAll(ctx, fsTmpObjPath) // remove multipart temporary files in background.
fsSimpleRenameFile(ctx, uploadIDDir, fsTmpObjPath)
// It is safe to ignore any directory not empty error (in case there were multiple uploadIDs on the same object)
fsRemoveDir(ctx, fs.getMultipartSHADir(bucket, object))
}
fi, err := fsStatFile(ctx, pathJoin(fs.fsPath, bucket, object))
if err != nil {
return oi, toObjectErr(err, bucket, object)
}
return fsMeta.ToObjectInfo(bucket, object, fi), nil
}
// AbortMultipartUpload - aborts an ongoing multipart operation
// signified by the input uploadID. This is an atomic operation
// doesn't require clients to initiate multiple such requests.
//
// All parts are purged from all disks and reference to the uploadID
// would be removed from the system, rollback is not possible on this
// operation.
//
// Implements S3 compatible Abort multipart API, slight difference is
// that this is an atomic idempotent operation. Subsequent calls have
// no affect and further requests to the same uploadID would not be
// honored.
func (fs *FSObjects) AbortMultipartUpload(ctx context.Context, bucket, object, uploadID string, opts ObjectOptions) error {
if err := checkAbortMultipartArgs(ctx, bucket, object, fs); err != nil {
return err
}
if _, err := fs.statBucketDir(ctx, bucket); err != nil {
return toObjectErr(err, bucket)
}
fs.appendFileMapMu.Lock()
// Remove file in tmp folder
file := fs.appendFileMap[uploadID]
if file != nil {
fsRemoveFile(ctx, file.filePath)
}
delete(fs.appendFileMap, uploadID)
fs.appendFileMapMu.Unlock()
uploadIDDir := fs.getUploadIDDir(bucket, object, uploadID)
// Just check if the uploadID exists to avoid copy if it doesn't.
_, err := fsStatFile(ctx, pathJoin(uploadIDDir, fs.metaJSONFile))
if err != nil {
if err == errFileNotFound || err == errFileAccessDenied {
return InvalidUploadID{Bucket: bucket, Object: object, UploadID: uploadID}
}
return toObjectErr(err, bucket, object)
}
// Purge multipart folders
{
fsTmpObjPath := pathJoin(fs.fsPath, minioMetaTmpBucket, fs.fsUUID, mustGetUUID())
defer fsRemoveAll(ctx, fsTmpObjPath) // remove multipart temporary files in background.
fsSimpleRenameFile(ctx, uploadIDDir, fsTmpObjPath)
// It is safe to ignore any directory not empty error (in case there were multiple uploadIDs on the same object)
fsRemoveDir(ctx, fs.getMultipartSHADir(bucket, object))
}
return nil
}
// Removes multipart uploads if any older than `expiry` duration
// on all buckets for every `cleanupInterval`, this function is
// blocking and should be run in a go-routine.
func (fs *FSObjects) cleanupStaleUploads(ctx context.Context, cleanupInterval, expiry time.Duration) {
ticker := time.NewTicker(cleanupInterval)
defer ticker.Stop()
for {
select {
case <-ctx.Done():
return
case <-ticker.C:
now := time.Now()
entries, err := readDir(pathJoin(fs.fsPath, minioMetaMultipartBucket))
if err != nil {
continue
}
for _, entry := range entries {
uploadIDs, err := readDir(pathJoin(fs.fsPath, minioMetaMultipartBucket, entry))
if err != nil {
continue
}
// Remove the trailing slash separator
for i := range uploadIDs {
uploadIDs[i] = strings.TrimSuffix(uploadIDs[i], SlashSeparator)
}
for _, uploadID := range uploadIDs {
fi, err := fsStatDir(ctx, pathJoin(fs.fsPath, minioMetaMultipartBucket, entry, uploadID))
if err != nil {
continue
}
if now.Sub(fi.ModTime()) > expiry {
fsRemoveAll(ctx, pathJoin(fs.fsPath, minioMetaMultipartBucket, entry, uploadID))
// It is safe to ignore any directory not empty error (in case there were multiple uploadIDs on the same object)
fsRemoveDir(ctx, pathJoin(fs.fsPath, minioMetaMultipartBucket, entry))
// Remove uploadID from the append file map and its corresponding temporary file
fs.appendFileMapMu.Lock()
bgAppend, ok := fs.appendFileMap[uploadID]
if ok {
_ = fsRemoveFile(ctx, bgAppend.filePath)
delete(fs.appendFileMap, uploadID)
}
fs.appendFileMapMu.Unlock()
}
}
}
}
}
}