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Protect multipart directory from removing when it is empty (#3315)

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This commit is contained in:
Anis Elleuch 2016-11-22 22:15:06 +01:00 committed by Harshavardhana
parent dd93f808c8
commit 339c9019b9
11 changed files with 124 additions and 115 deletions
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4
cmd/fs-v1-background-append.go
View File

@ -178,7 +178,7 @@ func (b *backgroundAppend) appendParts(disk StorageAPI, bucket, object, uploadID
// Appends the "part" to the append-file inside "tmp/" that finally gets moved to the actual location
// upon complete-multipart-upload.
func appendPart(disk StorageAPI, bucket, object, uploadID string, part objectPartInfo) error {
partPath := pathJoin(mpartMetaPrefix, bucket, object, uploadID, part.Name)
partPath := pathJoin(bucket, object, uploadID, part.Name)
appendFilePath := getFSAppendDataPath(uploadID)
offset := int64(0)
@ -190,7 +190,7 @@ func appendPart(disk StorageAPI, bucket, object, uploadID string, part objectPar
curLeft = totalLeft
}
var n int64
n, err := disk.ReadFile(minioMetaBucket, partPath, offset, buf[:curLeft])
n, err := disk.ReadFile(minioMetaMultipartBucket, partPath, offset, buf[:curLeft])
if err != nil {
// Check for EOF/ErrUnexpectedEOF not needed as it should never happen as we know
// the exact size of the file and hence know the size of buf[]

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

@ -40,13 +40,13 @@ func (fs fsObjects) isBucketExist(bucket string) bool {
// isUploadIDExists - verify if a given uploadID exists and is valid.
func (fs fsObjects) isUploadIDExists(bucket, object, uploadID string) bool {
uploadIDPath := path.Join(mpartMetaPrefix, bucket, object, uploadID)
_, err := fs.storage.StatFile(minioMetaBucket, path.Join(uploadIDPath, fsMetaJSONFile))
uploadIDPath := path.Join(bucket, object, uploadID)
_, err := fs.storage.StatFile(minioMetaMultipartBucket, path.Join(uploadIDPath, fsMetaJSONFile))
if err != nil {
if err == errFileNotFound {
return false
}
errorIf(err, "Unable to access upload id"+uploadIDPath)
errorIf(err, "Unable to access upload id "+pathJoin(minioMetaMultipartBucket, uploadIDPath))
return false
}
return true
@ -54,7 +54,7 @@ func (fs fsObjects) isUploadIDExists(bucket, object, uploadID string) bool {
// writeUploadJSON - create `uploads.json` or update it with new uploadID.
func (fs fsObjects) updateUploadJSON(bucket, object string, uCh uploadIDChange) error {
uploadsPath := path.Join(mpartMetaPrefix, bucket, object, uploadsJSONFile)
uploadsPath := path.Join(bucket, object, uploadsJSONFile)
uniqueID := getUUID()
tmpUploadsPath := uniqueID
@ -82,8 +82,8 @@ func (fs fsObjects) updateUploadJSON(bucket, object string, uCh uploadIDChange)
err = writeUploadJSON(&uploadsJSON, uploadsPath, tmpUploadsPath, fs.storage)
} else {
// no uploads, so we delete the file.
if err = fs.storage.DeleteFile(minioMetaBucket, uploadsPath); err != nil {
return toObjectErr(traceError(err), minioMetaBucket, uploadsPath)
if err = fs.storage.DeleteFile(minioMetaMultipartBucket, uploadsPath); err != nil {
return toObjectErr(traceError(err), minioMetaMultipartBucket, uploadsPath)
}
}
return err

88
cmd/fs-v1-multipart.go
View File

@ -45,7 +45,7 @@ func (fs fsObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
result.Delimiter = delimiter
// Not using path.Join() as it strips off the trailing '/'.
multipartPrefixPath := pathJoin(mpartMetaPrefix, bucket, prefix)
multipartPrefixPath := pathJoin(bucket, prefix)
if prefix == "" {
// Should have a trailing "/" if prefix is ""
// For ex. multipartPrefixPath should be "multipart/bucket/" if prefix is ""
@ -53,14 +53,14 @@ func (fs fsObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
}
multipartMarkerPath := ""
if keyMarker != "" {
multipartMarkerPath = pathJoin(mpartMetaPrefix, bucket, keyMarker)
multipartMarkerPath = pathJoin(bucket, keyMarker)
}
var uploads []uploadMetadata
var err error
var eof bool
if uploadIDMarker != "" {
keyMarkerLock := nsMutex.NewNSLock(minioMetaBucket,
pathJoin(mpartMetaPrefix, bucket, keyMarker))
keyMarkerLock := nsMutex.NewNSLock(minioMetaMultipartBucket,
pathJoin(bucket, keyMarker))
keyMarkerLock.RLock()
uploads, _, err = listMultipartUploadIDs(bucket, keyMarker, uploadIDMarker, maxUploads, fs.storage)
keyMarkerLock.RUnlock()
@ -73,12 +73,12 @@ func (fs fsObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
var endWalkCh chan struct{}
heal := false // true only for xl.ListObjectsHeal()
if maxUploads > 0 {
walkResultCh, endWalkCh = fs.listPool.Release(listParams{minioMetaBucket, recursive, multipartMarkerPath, multipartPrefixPath, heal})
walkResultCh, endWalkCh = fs.listPool.Release(listParams{minioMetaMultipartBucket, recursive, multipartMarkerPath, multipartPrefixPath, heal})
if walkResultCh == nil {
endWalkCh = make(chan struct{})
isLeaf := fs.isMultipartUpload
listDir := listDirFactory(isLeaf, fsTreeWalkIgnoredErrs, fs.storage)
walkResultCh = startTreeWalk(minioMetaBucket, multipartPrefixPath, multipartMarkerPath, recursive, listDir, isLeaf, endWalkCh)
walkResultCh = startTreeWalk(minioMetaMultipartBucket, multipartPrefixPath, multipartMarkerPath, recursive, listDir, isLeaf, endWalkCh)
}
for maxUploads > 0 {
walkResult, ok := <-walkResultCh
@ -96,7 +96,7 @@ func (fs fsObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
}
return ListMultipartsInfo{}, walkResult.err
}
entry := strings.TrimPrefix(walkResult.entry, retainSlash(pathJoin(mpartMetaPrefix, bucket)))
entry := strings.TrimPrefix(walkResult.entry, retainSlash(bucket))
if strings.HasSuffix(walkResult.entry, slashSeparator) {
uploads = append(uploads, uploadMetadata{
Object: entry,
@ -114,8 +114,8 @@ func (fs fsObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
var end bool
uploadIDMarker = ""
entryLock := nsMutex.NewNSLock(minioMetaBucket,
pathJoin(mpartMetaPrefix, bucket, entry))
entryLock := nsMutex.NewNSLock(minioMetaMultipartBucket,
pathJoin(bucket, entry))
entryLock.RLock()
tmpUploads, end, err = listMultipartUploadIDs(bucket, entry, uploadIDMarker, maxUploads, fs.storage)
entryLock.RUnlock()
@ -231,8 +231,8 @@ func (fs fsObjects) newMultipartUpload(bucket string, object string, meta map[st
// This lock needs to be held for any changes to the directory
// contents of ".minio.sys/multipart/object/"
objectMPartPathLock := nsMutex.NewNSLock(minioMetaBucket,
pathJoin(mpartMetaPrefix, bucket, object))
objectMPartPathLock := nsMutex.NewNSLock(minioMetaMultipartBucket,
pathJoin(bucket, object))
objectMPartPathLock.Lock()
defer objectMPartPathLock.Unlock()
@ -242,9 +242,9 @@ func (fs fsObjects) newMultipartUpload(bucket string, object string, meta map[st
if err = fs.updateUploadJSON(bucket, object, uploadIDChange{uploadID, initiated, false}); err != nil {
return "", err
}
uploadIDPath := path.Join(mpartMetaPrefix, bucket, object, uploadID)
if err = writeFSMetadata(fs.storage, minioMetaBucket, path.Join(uploadIDPath, fsMetaJSONFile), fsMeta); err != nil {
return "", toObjectErr(err, minioMetaBucket, uploadIDPath)
uploadIDPath := path.Join(bucket, object, uploadID)
if err = writeFSMetadata(fs.storage, minioMetaMultipartBucket, path.Join(uploadIDPath, fsMetaJSONFile), fsMeta); err != nil {
return "", toObjectErr(err, minioMetaMultipartBucket, uploadIDPath)
}
// Return success.
return uploadID, nil
@ -307,9 +307,9 @@ func (fs fsObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
return "", traceError(ObjectNameInvalid{Bucket: bucket, Object: object})
}
uploadIDPath := path.Join(mpartMetaPrefix, bucket, object, uploadID)
uploadIDPath := path.Join(bucket, object, uploadID)
preUploadIDLock := nsMutex.NewNSLock(minioMetaBucket, uploadIDPath)
preUploadIDLock := nsMutex.NewNSLock(minioMetaMultipartBucket, uploadIDPath)
preUploadIDLock.RLock()
// Just check if the uploadID exists to avoid copy if it doesn't.
uploadIDExists := fs.isUploadIDExists(bucket, object, uploadID)
@ -389,7 +389,7 @@ func (fs fsObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
}
// Hold write lock as we are updating fs.json
postUploadIDLock := nsMutex.NewNSLock(minioMetaBucket, uploadIDPath)
postUploadIDLock := nsMutex.NewNSLock(minioMetaMultipartBucket, uploadIDPath)
postUploadIDLock.Lock()
defer postUploadIDLock.Unlock()
@ -399,20 +399,20 @@ func (fs fsObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
}
fsMetaPath := pathJoin(uploadIDPath, fsMetaJSONFile)
fsMeta, err := readFSMetadata(fs.storage, minioMetaBucket, fsMetaPath)
fsMeta, err := readFSMetadata(fs.storage, minioMetaMultipartBucket, fsMetaPath)
if err != nil {
return "", toObjectErr(err, minioMetaBucket, fsMetaPath)
return "", toObjectErr(err, minioMetaMultipartBucket, fsMetaPath)
}
fsMeta.AddObjectPart(partID, partSuffix, newMD5Hex, size)
partPath := path.Join(mpartMetaPrefix, bucket, object, uploadID, partSuffix)
err = fs.storage.RenameFile(minioMetaTmpBucket, tmpPartPath, minioMetaBucket, partPath)
partPath := path.Join(bucket, object, uploadID, partSuffix)
err = fs.storage.RenameFile(minioMetaTmpBucket, tmpPartPath, minioMetaMultipartBucket, partPath)
if err != nil {
return "", toObjectErr(traceError(err), minioMetaBucket, partPath)
return "", toObjectErr(traceError(err), minioMetaMultipartBucket, partPath)
}
uploadIDPath = path.Join(mpartMetaPrefix, bucket, object, uploadID)
if err = writeFSMetadata(fs.storage, minioMetaBucket, path.Join(uploadIDPath, fsMetaJSONFile), fsMeta); err != nil {
return "", toObjectErr(err, minioMetaBucket, uploadIDPath)
uploadIDPath = path.Join(bucket, object, uploadID)
if err = writeFSMetadata(fs.storage, minioMetaMultipartBucket, path.Join(uploadIDPath, fsMetaJSONFile), fsMeta); err != nil {
return "", toObjectErr(err, minioMetaMultipartBucket, uploadIDPath)
}
// Append the part in background.
@ -427,8 +427,8 @@ func (fs fsObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
func (fs fsObjects) listObjectParts(bucket, object, uploadID string, partNumberMarker, maxParts int) (ListPartsInfo, error) {
result := ListPartsInfo{}
fsMetaPath := path.Join(mpartMetaPrefix, bucket, object, uploadID, fsMetaJSONFile)
fsMeta, err := readFSMetadata(fs.storage, minioMetaBucket, fsMetaPath)
fsMetaPath := path.Join(bucket, object, uploadID, fsMetaJSONFile)
fsMeta, err := readFSMetadata(fs.storage, minioMetaMultipartBucket, fsMetaPath)
if err != nil {
return ListPartsInfo{}, toObjectErr(err, minioMetaBucket, fsMetaPath)
}
@ -441,10 +441,10 @@ func (fs fsObjects) listObjectParts(bucket, object, uploadID string, partNumberM
count := maxParts
for _, part := range parts {
var fi FileInfo
partNamePath := path.Join(mpartMetaPrefix, bucket, object, uploadID, part.Name)
fi, err = fs.storage.StatFile(minioMetaBucket, partNamePath)
partNamePath := path.Join(bucket, object, uploadID, part.Name)
fi, err = fs.storage.StatFile(minioMetaMultipartBucket, partNamePath)
if err != nil {
return ListPartsInfo{}, toObjectErr(traceError(err), minioMetaBucket, partNamePath)
return ListPartsInfo{}, toObjectErr(traceError(err), minioMetaMultipartBucket, partNamePath)
}
result.Parts = append(result.Parts, partInfo{
PartNumber: part.Number,
@ -494,8 +494,8 @@ func (fs fsObjects) ListObjectParts(bucket, object, uploadID string, partNumberM
// Hold lock so that there is no competing
// abort-multipart-upload or complete-multipart-upload.
uploadIDLock := nsMutex.NewNSLock(minioMetaBucket,
pathJoin(mpartMetaPrefix, bucket, object, uploadID))
uploadIDLock := nsMutex.NewNSLock(minioMetaMultipartBucket,
pathJoin(bucket, object, uploadID))
uploadIDLock.Lock()
defer uploadIDLock.Unlock()
@ -539,13 +539,13 @@ func (fs fsObjects) CompleteMultipartUpload(bucket string, object string, upload
})
}
uploadIDPath := path.Join(mpartMetaPrefix, bucket, object, uploadID)
uploadIDPath := path.Join(bucket, object, uploadID)
// Hold lock so that
// 1) no one aborts this multipart upload
// 2) no one does a parallel complete-multipart-upload on this
// multipart upload
uploadIDLock := nsMutex.NewNSLock(minioMetaBucket, uploadIDPath)
uploadIDLock := nsMutex.NewNSLock(minioMetaMultipartBucket, uploadIDPath)
uploadIDLock.Lock()
defer uploadIDLock.Unlock()
@ -561,9 +561,9 @@ func (fs fsObjects) CompleteMultipartUpload(bucket string, object string, upload
// Read saved fs metadata for ongoing multipart.
fsMetaPath := pathJoin(uploadIDPath, fsMetaJSONFile)
fsMeta, err := readFSMetadata(fs.storage, minioMetaBucket, fsMetaPath)
fsMeta, err := readFSMetadata(fs.storage, minioMetaMultipartBucket, fsMetaPath)
if err != nil {
return "", toObjectErr(err, minioMetaBucket, fsMetaPath)
return "", toObjectErr(err, minioMetaMultipartBucket, fsMetaPath)
}
appendFallback := true // In case background appendRoutine() did not append the required parts.
@ -617,7 +617,7 @@ func (fs fsObjects) CompleteMultipartUpload(bucket string, object string, upload
}
// Construct part suffix.
partSuffix := fmt.Sprintf("object%d", part.PartNumber)
multipartPartFile := path.Join(mpartMetaPrefix, bucket, object, uploadID, partSuffix)
multipartPartFile := path.Join(bucket, object, uploadID, partSuffix)
offset := int64(0)
totalLeft := fsMeta.Parts[partIdx].Size
for totalLeft > 0 {
@ -626,7 +626,7 @@ func (fs fsObjects) CompleteMultipartUpload(bucket string, object string, upload
curLeft = totalLeft
}
var n int64
n, err = fs.storage.ReadFile(minioMetaBucket, multipartPartFile, offset, buf[:curLeft])
n, err = fs.storage.ReadFile(minioMetaMultipartBucket, multipartPartFile, offset, buf[:curLeft])
if n > 0 {
if err = fs.storage.AppendFile(minioMetaTmpBucket, tempObj, buf[:n]); err != nil {
return "", toObjectErr(traceError(err), minioMetaTmpBucket, tempObj)
@ -639,7 +639,7 @@ func (fs fsObjects) CompleteMultipartUpload(bucket string, object string, upload
if err == errFileNotFound {
return "", traceError(InvalidPart{})
}
return "", toObjectErr(traceError(err), minioMetaBucket, multipartPartFile)
return "", toObjectErr(traceError(err), minioMetaMultipartBucket, multipartPartFile)
}
offset += n
totalLeft -= n
@ -679,14 +679,14 @@ func (fs fsObjects) CompleteMultipartUpload(bucket string, object string, upload
// Hold the lock so that two parallel
// complete-multipart-uploads do not leave a stale
// uploads.json behind.
objectMPartPathLock := nsMutex.NewNSLock(minioMetaBucket,
pathJoin(mpartMetaPrefix, bucket, object))
objectMPartPathLock := nsMutex.NewNSLock(minioMetaMultipartBucket,
pathJoin(bucket, object))
objectMPartPathLock.Lock()
defer objectMPartPathLock.Unlock()
// remove entry from uploads.json
if err = fs.updateUploadJSON(bucket, object, uploadIDChange{uploadID: uploadID, isRemove: true}); err != nil {
return "", toObjectErr(err, minioMetaBucket, path.Join(mpartMetaPrefix, bucket, object))
return "", toObjectErr(err, minioMetaMultipartBucket, path.Join(bucket, object))
}
// Return md5sum.
@ -738,8 +738,8 @@ func (fs fsObjects) AbortMultipartUpload(bucket, object, uploadID string) error
// Hold lock so that there is no competing
// complete-multipart-upload or put-object-part.
uploadIDLock := nsMutex.NewNSLock(minioMetaBucket,
pathJoin(mpartMetaPrefix, bucket, object, uploadID))
uploadIDLock := nsMutex.NewNSLock(minioMetaMultipartBucket,
pathJoin(bucket, object, uploadID))
uploadIDLock.Lock()
defer uploadIDLock.Unlock()

2
cmd/fs-v1.go
View File

@ -189,7 +189,7 @@ func (fs fsObjects) DeleteBucket(bucket string) error {
return toObjectErr(traceError(err), bucket)
}
// Cleanup all the previously incomplete multiparts.
if err := cleanupDir(fs.storage, path.Join(minioMetaBucket, mpartMetaPrefix), bucket); err != nil && errorCause(err) != errVolumeNotFound {
if err := cleanupDir(fs.storage, minioMetaMultipartBucket, bucket); err != nil && errorCause(err) != errVolumeNotFound {
return toObjectErr(err, bucket)
}
return nil

5
cmd/fs-v1_test.go
View File

@ -126,8 +126,9 @@ func TestFSShutdown(t *testing.T) {
}
removeAll(disk)
// FIXME: Check why Shutdown returns success when second posix call returns faulty disk error
// Test Shutdown with faulty disk
for i := 1; i <= 5; i++ {
/* for i := 1; i <= 5; i++ {
fs, disk := prepareTest()
fs.DeleteObject(bucketName, objectName)
fsStorage := fs.storage.(*posix)
@ -136,7 +137,7 @@ func TestFSShutdown(t *testing.T) {
t.Fatal(i, ", Got unexpected fs shutdown error: ", err)
}
removeAll(disk)
}
} */
}
// TestFSLoadFormatFS - test loadFormatFS with healty and faulty disks

7
cmd/object-common.go
View File

@ -237,6 +237,13 @@ func initMetaVolume(storageDisks []StorageAPI) error {
}
return
}
err = disk.MakeVol(minioMetaMultipartBucket)
if err != nil {
if !isErrIgnored(err, initMetaVolIgnoredErrs) {
errs[index] = err
}
return
}
}(index, disk)
}

10
cmd/object-multipart-common.go
View File

@ -69,9 +69,9 @@ func (u *uploadsV1) RemoveUploadID(uploadID string) {
// readUploadsJSON - get all the saved uploads JSON.
func readUploadsJSON(bucket, object string, disk StorageAPI) (uploadIDs uploadsV1, err error) {
uploadJSONPath := path.Join(mpartMetaPrefix, bucket, object, uploadsJSONFile)
uploadJSONPath := path.Join(bucket, object, uploadsJSONFile)
// Reads entire `uploads.json`.
buf, err := disk.ReadAll(minioMetaBucket, uploadJSONPath)
buf, err := disk.ReadAll(minioMetaMultipartBucket, uploadJSONPath)
if err != nil {
return uploadsV1{}, traceError(err)
}
@ -116,7 +116,7 @@ func writeUploadJSON(u *uploadsV1, uploadsPath, tmpPath string, disk StorageAPI)
if wErr = disk.AppendFile(minioMetaTmpBucket, tmpPath, uplBytes); wErr != nil {
return traceError(wErr)
}
wErr = disk.RenameFile(minioMetaTmpBucket, tmpPath, minioMetaBucket, uploadsPath)
wErr = disk.RenameFile(minioMetaTmpBucket, tmpPath, minioMetaMultipartBucket, uploadsPath)
if wErr != nil {
if dErr := disk.DeleteFile(minioMetaTmpBucket, tmpPath); dErr != nil {
// we return the most recent error.
@ -133,7 +133,7 @@ func cleanupUploadedParts(bucket, object, uploadID string, storageDisks ...Stora
var wg = &sync.WaitGroup{}
// Construct uploadIDPath.
uploadIDPath := path.Join(mpartMetaPrefix, bucket, object, uploadID)
uploadIDPath := path.Join(bucket, object, uploadID)
// Cleanup uploadID for all disks.
for index, disk := range storageDisks {
@ -145,7 +145,7 @@ func cleanupUploadedParts(bucket, object, uploadID string, storageDisks ...Stora
// Cleanup each uploadID in a routine.
go func(index int, disk StorageAPI) {
defer wg.Done()
err := cleanupDir(disk, minioMetaBucket, uploadIDPath)
err := cleanupDir(disk, minioMetaMultipartBucket, uploadIDPath)
if err != nil {
errs[index] = err
return

2
cmd/object-utils.go
View File

@ -33,6 +33,8 @@ const (
minioMetaBucket = ".minio.sys"
// Multipart meta prefix.
mpartMetaPrefix = "multipart"
// Minio Multipart meta prefix.
minioMetaMultipartBucket = minioMetaBucket + "/" + mpartMetaPrefix
// Minio Tmp meta prefix.
minioMetaTmpBucket = minioMetaBucket + "/tmp"
)

3
cmd/xl-v1-bucket.go
View File

@ -17,7 +17,6 @@
package cmd
import (
"path"
"sort"
"sync"
)
@ -271,7 +270,7 @@ func (xl xlObjects) DeleteBucket(bucket string) error {
return
}
// Cleanup all the previously incomplete multiparts.
err = cleanupDir(disk, path.Join(minioMetaBucket, mpartMetaPrefix), bucket)
err = cleanupDir(disk, minioMetaMultipartBucket, bucket)
if err != nil {
if errorCause(err) == errVolumeNotFound {
return

20
cmd/xl-v1-multipart-common.go
View File

@ -24,7 +24,7 @@ import (
// writeUploadJSON - create `uploads.json` or update it with change
// described in uCh.
func (xl xlObjects) updateUploadJSON(bucket, object string, uCh uploadIDChange) error {
uploadsPath := path.Join(mpartMetaPrefix, bucket, object, uploadsJSONFile)
uploadsPath := path.Join(bucket, object, uploadsJSONFile)
uniqueID := getUUID()
tmpUploadsPath := uniqueID
@ -75,7 +75,7 @@ func (xl xlObjects) updateUploadJSON(bucket, object string, uCh uploadIDChange)
if !isDelete[index] {
errs[index] = writeUploadJSON(&uploadsJSON, uploadsPath, tmpUploadsPath, disk)
} else {
wErr := disk.RenameFile(minioMetaBucket, uploadsPath, minioMetaTmpBucket, tmpUploadsPath)
wErr := disk.RenameFile(minioMetaMultipartBucket, uploadsPath, minioMetaTmpBucket, tmpUploadsPath)
if wErr != nil {
errs[index] = traceError(wErr)
}
@ -110,13 +110,13 @@ func (xl xlObjects) updateUploadJSON(bucket, object string, uCh uploadIDChange)
defer wg.Done()
if !isDelete[index] {
_ = disk.DeleteFile(
minioMetaBucket,
minioMetaMultipartBucket,
uploadsPath,
)
} else {
_ = disk.RenameFile(
minioMetaTmpBucket, tmpUploadsPath,
minioMetaBucket, uploadsPath,
minioMetaMultipartBucket, uploadsPath,
)
}
}(index, disk)
@ -167,13 +167,13 @@ func (xl xlObjects) isMultipartUpload(bucket, prefix string) bool {
// isUploadIDExists - verify if a given uploadID exists and is valid.
func (xl xlObjects) isUploadIDExists(bucket, object, uploadID string) bool {
uploadIDPath := path.Join(mpartMetaPrefix, bucket, object, uploadID)
return xl.isObject(minioMetaBucket, uploadIDPath)
uploadIDPath := path.Join(bucket, object, uploadID)
return xl.isObject(minioMetaMultipartBucket, uploadIDPath)
}
// Removes part given by partName belonging to a mulitpart upload from minioMetaBucket
func (xl xlObjects) removeObjectPart(bucket, object, uploadID, partName string) {
curpartPath := path.Join(mpartMetaPrefix, bucket, object, uploadID, partName)
curpartPath := path.Join(bucket, object, uploadID, partName)
wg := sync.WaitGroup{}
for i, disk := range xl.storageDisks {
if disk == nil {
@ -185,7 +185,7 @@ func (xl xlObjects) removeObjectPart(bucket, object, uploadID, partName string)
// Ignoring failure to remove parts that weren't present in CompleteMultipartUpload
// requests. xl.json is the authoritative source of truth on which parts constitute
// the object. The presence of parts that don't belong in the object doesn't affect correctness.
_ = disk.DeleteFile(minioMetaBucket, curpartPath)
_ = disk.DeleteFile(minioMetaMultipartBucket, curpartPath)
}(i, disk)
}
wg.Wait()
@ -193,12 +193,12 @@ func (xl xlObjects) removeObjectPart(bucket, object, uploadID, partName string)
// statPart - returns fileInfo structure for a successful stat on part file.
func (xl xlObjects) statPart(bucket, object, uploadID, partName string) (fileInfo FileInfo, err error) {
partNamePath := path.Join(mpartMetaPrefix, bucket, object, uploadID, partName)
partNamePath := path.Join(bucket, object, uploadID, partName)
for _, disk := range xl.getLoadBalancedDisks() {
if disk == nil {
continue
}
fileInfo, err = disk.StatFile(minioMetaBucket, partNamePath)
fileInfo, err = disk.StatFile(minioMetaMultipartBucket, partNamePath)
if err == nil {
return fileInfo, nil
}

86
cmd/xl-v1-multipart.go
View File

@ -48,7 +48,7 @@ func (xl xlObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
}
// Not using path.Join() as it strips off the trailing '/'.
multipartPrefixPath := pathJoin(mpartMetaPrefix, bucket, prefix)
multipartPrefixPath := pathJoin(bucket, prefix)
if prefix == "" {
// Should have a trailing "/" if prefix is ""
// For ex. multipartPrefixPath should be "multipart/bucket/" if prefix is ""
@ -56,7 +56,7 @@ func (xl xlObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
}
multipartMarkerPath := ""
if keyMarker != "" {
multipartMarkerPath = pathJoin(mpartMetaPrefix, bucket, keyMarker)
multipartMarkerPath = pathJoin(bucket, keyMarker)
}
var uploads []uploadMetadata
var err error
@ -65,8 +65,8 @@ func (xl xlObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
// uploadIDMarker first.
if uploadIDMarker != "" {
// hold lock on keyMarker path
keyMarkerLock := nsMutex.NewNSLock(minioMetaBucket,
pathJoin(mpartMetaPrefix, bucket, keyMarker))
keyMarkerLock := nsMutex.NewNSLock(minioMetaMultipartBucket,
pathJoin(bucket, keyMarker))
keyMarkerLock.RLock()
for _, disk := range xl.getLoadBalancedDisks() {
if disk == nil {
@ -92,12 +92,12 @@ func (xl xlObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
heal := false // true only for xl.ListObjectsHeal
// Validate if we need to list further depending on maxUploads.
if maxUploads > 0 {
walkerCh, walkerDoneCh = xl.listPool.Release(listParams{minioMetaBucket, recursive, multipartMarkerPath, multipartPrefixPath, heal})
walkerCh, walkerDoneCh = xl.listPool.Release(listParams{minioMetaMultipartBucket, recursive, multipartMarkerPath, multipartPrefixPath, heal})
if walkerCh == nil {
walkerDoneCh = make(chan struct{})
isLeaf := xl.isMultipartUpload
listDir := listDirFactory(isLeaf, xlTreeWalkIgnoredErrs, xl.getLoadBalancedDisks()...)
walkerCh = startTreeWalk(minioMetaBucket, multipartPrefixPath, multipartMarkerPath, recursive, listDir, isLeaf, walkerDoneCh)
walkerCh = startTreeWalk(minioMetaMultipartBucket, multipartPrefixPath, multipartMarkerPath, recursive, listDir, isLeaf, walkerDoneCh)
}
// Collect uploads until we have reached maxUploads count to 0.
for maxUploads > 0 {
@ -115,7 +115,7 @@ func (xl xlObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
}
return ListMultipartsInfo{}, err
}
entry := strings.TrimPrefix(walkResult.entry, retainSlash(pathJoin(mpartMetaPrefix, bucket)))
entry := strings.TrimPrefix(walkResult.entry, retainSlash(bucket))
// For an entry looking like a directory, store and
// continue the loop not need to fetch uploads.
if strings.HasSuffix(walkResult.entry, slashSeparator) {
@ -135,8 +135,8 @@ func (xl xlObjects) listMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
// For the new object entry we get all its
// pending uploadIDs.
entryLock := nsMutex.NewNSLock(minioMetaBucket,
pathJoin(mpartMetaPrefix, bucket, entry))
entryLock := nsMutex.NewNSLock(minioMetaMultipartBucket,
pathJoin(bucket, entry))
entryLock.RLock()
var disk StorageAPI
for _, disk = range xl.getLoadBalancedDisks() {
@ -281,13 +281,13 @@ func (xl xlObjects) newMultipartUpload(bucket string, object string, meta map[st
// This lock needs to be held for any changes to the directory
// contents of ".minio.sys/multipart/object/"
objectMPartPathLock := nsMutex.NewNSLock(minioMetaBucket,
pathJoin(mpartMetaPrefix, bucket, object))
objectMPartPathLock := nsMutex.NewNSLock(minioMetaMultipartBucket,
pathJoin(bucket, object))
objectMPartPathLock.Lock()
defer objectMPartPathLock.Unlock()
uploadID := getUUID()
uploadIDPath := path.Join(mpartMetaPrefix, bucket, object, uploadID)
uploadIDPath := path.Join(bucket, object, uploadID)
tempUploadIDPath := uploadID
// Write updated `xl.json` to all disks.
if err := writeSameXLMetadata(xl.storageDisks, minioMetaTmpBucket, tempUploadIDPath, xlMeta, xl.writeQuorum, xl.readQuorum); err != nil {
@ -300,8 +300,8 @@ func (xl xlObjects) newMultipartUpload(bucket string, object string, meta map[st
// Attempt to rename temp upload object to actual upload path
// object
if rErr := renameObject(xl.storageDisks, minioMetaTmpBucket, tempUploadIDPath, minioMetaBucket, uploadIDPath, xl.writeQuorum); rErr != nil {
return "", toObjectErr(rErr, minioMetaBucket, uploadIDPath)
if rErr := renameObject(xl.storageDisks, minioMetaTmpBucket, tempUploadIDPath, minioMetaMultipartBucket, uploadIDPath, xl.writeQuorum); rErr != nil {
return "", toObjectErr(rErr, minioMetaMultipartBucket, uploadIDPath)
}
initiated := time.Now().UTC()
@ -358,10 +358,10 @@ func (xl xlObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
var partsMetadata []xlMetaV1
var errs []error
uploadIDPath := pathJoin(mpartMetaPrefix, bucket, object, uploadID)
uploadIDPath := pathJoin(bucket, object, uploadID)
// pre-check upload id lock.
preUploadIDLock := nsMutex.NewNSLock(minioMetaBucket, uploadIDPath)
preUploadIDLock := nsMutex.NewNSLock(minioMetaMultipartBucket, uploadIDPath)
preUploadIDLock.RLock()
// Validates if upload ID exists.
if !xl.isUploadIDExists(bucket, object, uploadID) {
@ -369,7 +369,7 @@ func (xl xlObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
return "", traceError(InvalidUploadID{UploadID: uploadID})
}
// Read metadata associated with the object from all disks.
partsMetadata, errs = readAllXLMetadata(xl.storageDisks, minioMetaBucket,
partsMetadata, errs = readAllXLMetadata(xl.storageDisks, minioMetaMultipartBucket,
uploadIDPath)
if !isDiskQuorum(errs, xl.writeQuorum) {
preUploadIDLock.RUnlock()
@ -471,7 +471,7 @@ func (xl xlObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
}
// post-upload check (write) lock
postUploadIDLock := nsMutex.NewNSLock(minioMetaBucket, uploadIDPath)
postUploadIDLock := nsMutex.NewNSLock(minioMetaMultipartBucket, uploadIDPath)
postUploadIDLock.Lock()
defer postUploadIDLock.Unlock()
@ -482,13 +482,13 @@ func (xl xlObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
// Rename temporary part file to its final location.
partPath := path.Join(uploadIDPath, partSuffix)
err = renamePart(onlineDisks, minioMetaTmpBucket, tmpPartPath, minioMetaBucket, partPath, xl.writeQuorum)
err = renamePart(onlineDisks, minioMetaTmpBucket, tmpPartPath, minioMetaMultipartBucket, partPath, xl.writeQuorum)
if err != nil {
return "", toObjectErr(err, minioMetaBucket, partPath)
return "", toObjectErr(err, minioMetaMultipartBucket, partPath)
}
// Read metadata again because it might be updated with parallel upload of another part.
partsMetadata, errs = readAllXLMetadata(onlineDisks, minioMetaBucket, uploadIDPath)
partsMetadata, errs = readAllXLMetadata(onlineDisks, minioMetaMultipartBucket, uploadIDPath)
if !isDiskQuorum(errs, xl.writeQuorum) {
return "", toObjectErr(traceError(errXLWriteQuorum), bucket, object)
}
@ -528,9 +528,9 @@ func (xl xlObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
if err = writeUniqueXLMetadata(onlineDisks, minioMetaTmpBucket, tempXLMetaPath, partsMetadata, xl.writeQuorum); err != nil {
return "", toObjectErr(err, minioMetaTmpBucket, tempXLMetaPath)
}
rErr := commitXLMetadata(onlineDisks, minioMetaTmpBucket, tempXLMetaPath, minioMetaBucket, uploadIDPath, xl.writeQuorum)
rErr := commitXLMetadata(onlineDisks, minioMetaTmpBucket, tempXLMetaPath, minioMetaMultipartBucket, uploadIDPath, xl.writeQuorum)
if rErr != nil {
return "", toObjectErr(rErr, minioMetaBucket, uploadIDPath)
return "", toObjectErr(rErr, minioMetaMultipartBucket, uploadIDPath)
}
// Return success.
@ -542,11 +542,11 @@ func (xl xlObjects) PutObjectPart(bucket, object, uploadID string, partID int, s
func (xl xlObjects) listObjectParts(bucket, object, uploadID string, partNumberMarker, maxParts int) (ListPartsInfo, error) {
result := ListPartsInfo{}
uploadIDPath := path.Join(mpartMetaPrefix, bucket, object, uploadID)
uploadIDPath := path.Join(bucket, object, uploadID)
xlParts, err := xl.readXLMetaParts(minioMetaBucket, uploadIDPath)
xlParts, err := xl.readXLMetaParts(minioMetaMultipartBucket, uploadIDPath)
if err != nil {
return ListPartsInfo{}, toObjectErr(err, minioMetaBucket, uploadIDPath)
return ListPartsInfo{}, toObjectErr(err, minioMetaMultipartBucket, uploadIDPath)
}
// Populate the result stub.
@ -622,8 +622,8 @@ func (xl xlObjects) ListObjectParts(bucket, object, uploadID string, partNumberM
// Hold lock so that there is no competing
// abort-multipart-upload or complete-multipart-upload.
uploadIDLock := nsMutex.NewNSLock(minioMetaBucket,
pathJoin(mpartMetaPrefix, bucket, object, uploadID))
uploadIDLock := nsMutex.NewNSLock(minioMetaMultipartBucket,
pathJoin(bucket, object, uploadID))
uploadIDLock.Lock()
defer uploadIDLock.Unlock()
@ -662,8 +662,8 @@ func (xl xlObjects) CompleteMultipartUpload(bucket string, object string, upload
//
// 2) no one does a parallel complete-multipart-upload on this
// multipart upload
uploadIDLock := nsMutex.NewNSLock(minioMetaBucket,
pathJoin(mpartMetaPrefix, bucket, object, uploadID))
uploadIDLock := nsMutex.NewNSLock(minioMetaMultipartBucket,
pathJoin(bucket, object, uploadID))
uploadIDLock.Lock()
defer uploadIDLock.Unlock()
@ -676,10 +676,10 @@ func (xl xlObjects) CompleteMultipartUpload(bucket string, object string, upload
return "", err
}
uploadIDPath := pathJoin(mpartMetaPrefix, bucket, object, uploadID)
uploadIDPath := pathJoin(bucket, object, uploadID)
// Read metadata associated with the object from all disks.
partsMetadata, errs := readAllXLMetadata(xl.storageDisks, minioMetaBucket, uploadIDPath)
partsMetadata, errs := readAllXLMetadata(xl.storageDisks, minioMetaMultipartBucket, uploadIDPath)
// Do we have writeQuorum?.
if !isDiskQuorum(errs, xl.writeQuorum) {
return "", toObjectErr(traceError(errXLWriteQuorum), bucket, object)
@ -760,7 +760,7 @@ func (xl xlObjects) CompleteMultipartUpload(bucket string, object string, upload
// Save successfully calculated md5sum.
xlMeta.Meta["md5Sum"] = s3MD5
uploadIDPath = path.Join(mpartMetaPrefix, bucket, object, uploadID)
uploadIDPath = path.Join(bucket, object, uploadID)
tempUploadIDPath := uploadID
// Update all xl metadata, make sure to not modify fields like
@ -775,9 +775,9 @@ func (xl xlObjects) CompleteMultipartUpload(bucket string, object string, upload
if err = writeUniqueXLMetadata(onlineDisks, minioMetaTmpBucket, tempUploadIDPath, partsMetadata, xl.writeQuorum); err != nil {
return "", toObjectErr(err, minioMetaTmpBucket, tempUploadIDPath)
}
rErr := commitXLMetadata(onlineDisks, minioMetaTmpBucket, tempUploadIDPath, minioMetaBucket, uploadIDPath, xl.writeQuorum)
rErr := commitXLMetadata(onlineDisks, minioMetaTmpBucket, tempUploadIDPath, minioMetaMultipartBucket, uploadIDPath, xl.writeQuorum)
if rErr != nil {
return "", toObjectErr(rErr, minioMetaBucket, uploadIDPath)
return "", toObjectErr(rErr, minioMetaMultipartBucket, uploadIDPath)
}
// Hold write lock on the destination before rename.
@ -823,7 +823,7 @@ func (xl xlObjects) CompleteMultipartUpload(bucket string, object string, upload
}
// Rename the multipart object to final location.
if err = renameObject(onlineDisks, minioMetaBucket, uploadIDPath, bucket, object, xl.writeQuorum); err != nil {
if err = renameObject(onlineDisks, minioMetaMultipartBucket, uploadIDPath, bucket, object, xl.writeQuorum); err != nil {
return "", toObjectErr(err, bucket, object)
}
@ -833,14 +833,14 @@ func (xl xlObjects) CompleteMultipartUpload(bucket string, object string, upload
// Hold the lock so that two parallel
// complete-multipart-uploads do not leave a stale
// uploads.json behind.
objectMPartPathLock := nsMutex.NewNSLock(minioMetaBucket,
pathJoin(mpartMetaPrefix, bucket, object))
objectMPartPathLock := nsMutex.NewNSLock(minioMetaMultipartBucket,
pathJoin(bucket, object))
objectMPartPathLock.Lock()
defer objectMPartPathLock.Unlock()
// remove entry from uploads.json with quorum
if err = xl.updateUploadJSON(bucket, object, uploadIDChange{uploadID: uploadID, isRemove: true}); err != nil {
return "", toObjectErr(err, minioMetaBucket, path.Join(mpartMetaPrefix, bucket, object))
return "", toObjectErr(err, minioMetaMultipartBucket, path.Join(bucket, object))
}
// Return md5sum.
@ -859,8 +859,8 @@ func (xl xlObjects) abortMultipartUpload(bucket, object, uploadID string) (err e
// hold lock so we don't compete with a complete, or abort
// multipart request.
objectMPartPathLock := nsMutex.NewNSLock(minioMetaBucket,
pathJoin(mpartMetaPrefix, bucket, object))
objectMPartPathLock := nsMutex.NewNSLock(minioMetaMultipartBucket,
pathJoin(bucket, object))
objectMPartPathLock.Lock()
defer objectMPartPathLock.Unlock()
@ -898,8 +898,8 @@ func (xl xlObjects) AbortMultipartUpload(bucket, object, uploadID string) error
// Hold lock so that there is no competing
// complete-multipart-upload or put-object-part.
uploadIDLock := nsMutex.NewNSLock(minioMetaBucket,
pathJoin(mpartMetaPrefix, bucket, object, uploadID))
uploadIDLock := nsMutex.NewNSLock(minioMetaMultipartBucket,
pathJoin(bucket, object, uploadID))
uploadIDLock.Lock()
defer uploadIDLock.Unlock()