Merge pull request #1290 from balamurugana/devel

Refactor multipart upload
master
Harshavardhana 9 years ago
commit 06e3171076
  1. 7
      api-response.go
  2. 18
      bucket-handlers.go
  3. 56
      fs-backend-metadata.go
  4. 18
      fs-bucket-listobjects.go
  5. 395
      fs-multipart-dir.go
  6. 890
      fs-multipart.go
  7. 54
      fs.go
  8. 2
      fs_api_suite_test.go
  9. 202
      vendor/github.com/skyrings/skyring-common/LICENSE
  10. 133
      vendor/github.com/skyrings/skyring-common/tools/uuid/uuid.go
  11. 9
      vendor/vendor.json

@ -359,7 +359,12 @@ func generateListMultipartUploadsResponse(bucket string, multipartsInfo ListMult
listMultipartUploadsResponse.MaxUploads = multipartsInfo.MaxUploads
listMultipartUploadsResponse.NextUploadIDMarker = multipartsInfo.NextUploadIDMarker
listMultipartUploadsResponse.UploadIDMarker = multipartsInfo.UploadIDMarker
listMultipartUploadsResponse.CommonPrefixes = make([]CommonPrefix, len(multipartsInfo.CommonPrefixes))
for index, commonPrefix := range multipartsInfo.CommonPrefixes {
listMultipartUploadsResponse.CommonPrefixes[index] = CommonPrefix{
Prefix: commonPrefix,
}
}
listMultipartUploadsResponse.Uploads = make([]Upload, len(multipartsInfo.Uploads))
for index, upload := range multipartsInfo.Uploads {
newUpload := Upload{}

@ -179,8 +179,22 @@ func (api objectStorageAPI) ListMultipartUploadsHandler(w http.ResponseWriter, r
writeErrorResponse(w, r, ErrInvalidMaxUploads, r.URL.Path)
return
}
if maxUploads == 0 {
maxUploads = maxObjectList
if keyMarker != "" {
// Unescape keyMarker string
keyMarkerUnescaped, e := url.QueryUnescape(keyMarker)
if e != nil {
if e != nil {
// Return 'NoSuchKey' to indicate invalid marker key.
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
return
}
keyMarker = keyMarkerUnescaped
// Marker not common with prefix is not implemented.
if !strings.HasPrefix(keyMarker, prefix) {
writeErrorResponse(w, r, ErrNotImplemented, r.URL.Path)
return
}
}
}
listMultipartsInfo, err := api.ObjectAPI.ListMultipartUploads(bucket, prefix, keyMarker, uploadIDMarker, delimiter, maxUploads)

@ -1,56 +0,0 @@
/*
* Minio Cloud Storage, (C) 2015, 2016 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 main
import (
"github.com/minio/minio/pkg/probe"
"github.com/minio/minio/pkg/quick"
)
var multipartsMetadataPath string
// SetFSMultipartsMetadataPath - set custom multiparts session metadata path.
func setFSMultipartsMetadataPath(metadataPath string) {
multipartsMetadataPath = metadataPath
}
// saveMultipartsSession - save multiparts.
func saveMultipartsSession(mparts multiparts) *probe.Error {
qc, err := quick.New(mparts)
if err != nil {
return err.Trace()
}
if err := qc.Save(multipartsMetadataPath); err != nil {
return err.Trace()
}
return nil
}
// loadMultipartsSession load multipart session file.
func loadMultipartsSession() (*multiparts, *probe.Error) {
mparts := &multiparts{}
mparts.Version = "1"
mparts.ActiveSession = make(map[string]*multipartSession)
qc, err := quick.New(mparts)
if err != nil {
return nil, err.Trace()
}
if err := qc.Load(multipartsMetadataPath); err != nil {
return nil, err.Trace()
}
return qc.Data().(*multiparts), nil
}

@ -31,12 +31,15 @@ const (
)
// isDirExist - returns whether given directory is exist or not.
func isDirExist(dirname string) (status bool, err error) {
fi, err := os.Lstat(dirname)
if err == nil {
status = fi.IsDir()
func isDirExist(dirname string) (bool, error) {
fi, e := os.Lstat(dirname)
if e != nil {
if os.IsNotExist(e) {
return false, nil
}
return false, e
}
return
return fi.IsDir(), nil
}
func (fs *Filesystem) saveTreeWalk(params listObjectParams, walker *treeWalker) {
@ -124,9 +127,8 @@ func (fs Filesystem) ListObjects(bucket, prefix, marker, delimiter string, maxKe
// Verify if prefix exists.
prefixDir := filepath.Dir(filepath.FromSlash(prefix))
rootDir := filepath.Join(bucketDir, prefixDir)
_, e := isDirExist(rootDir)
if e != nil {
if os.IsNotExist(e) {
if status, e := isDirExist(rootDir); !status {
if e == nil {
// Prefix does not exist, not an error just respond empty
// list response.
return result, nil

@ -0,0 +1,395 @@
/*
* Minio Cloud Storage, (C) 2016 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 main
import (
"errors"
"io"
"os"
"path/filepath"
"sort"
"strings"
"time"
)
// DirEntry - directory entry
type DirEntry struct {
Name string
Size int64
Mode os.FileMode
ModTime time.Time
}
// IsDir - returns true if DirEntry is a directory
func (entry DirEntry) IsDir() bool {
return entry.Mode.IsDir()
}
// IsSymlink - returns true if DirEntry is a symbolic link
func (entry DirEntry) IsSymlink() bool {
return entry.Mode&os.ModeSymlink == os.ModeSymlink
}
// IsRegular - returns true if DirEntry is a regular file
func (entry DirEntry) IsRegular() bool {
return entry.Mode.IsRegular()
}
// sort interface for DirEntry slice
type byEntryName []DirEntry
func (f byEntryName) Len() int { return len(f) }
func (f byEntryName) Swap(i, j int) { f[i], f[j] = f[j], f[i] }
func (f byEntryName) Less(i, j int) bool { return f[i].Name < f[j].Name }
func filteredReaddir(dirname string, filter func(DirEntry) bool, appendPath bool) ([]DirEntry, error) {
result := []DirEntry{}
d, err := os.Open(dirname)
if err != nil {
return result, err
}
defer d.Close()
for {
fis, err := d.Readdir(1000)
if err != nil {
if err == io.EOF {
break
}
return result, err
}
for _, fi := range fis {
name := fi.Name()
if appendPath {
name = filepath.Join(dirname, name)
}
if fi.IsDir() {
name += string(os.PathSeparator)
}
entry := DirEntry{Name: name, Size: fi.Size(), Mode: fi.Mode(), ModTime: fi.ModTime()}
if filter == nil || filter(entry) {
result = append(result, entry)
}
}
}
sort.Sort(byEntryName(result))
return result, nil
}
func filteredReaddirnames(dirname string, filter func(string) bool) ([]string, error) {
result := []string{}
d, err := os.Open(dirname)
if err != nil {
return result, err
}
defer d.Close()
for {
names, err := d.Readdirnames(1000)
if err != nil {
if err == io.EOF {
break
}
return result, err
}
for _, name := range names {
if filter == nil || filter(name) {
result = append(result, name)
}
}
}
sort.Strings(result)
return result, nil
}
func scanMultipartDir(bucketDir, prefixPath, markerPath, uploadIDMarker string, recursive bool) multipartObjectInfoChannel {
objectInfoCh := make(chan multipartObjectInfo, listObjectsLimit)
timeoutCh := make(chan struct{}, 1)
// TODO: check if bucketDir is absolute path
scanDir := bucketDir
dirDepth := bucketDir
if prefixPath != "" {
if !filepath.IsAbs(prefixPath) {
tmpPrefixPath := filepath.Join(bucketDir, prefixPath)
if strings.HasSuffix(prefixPath, string(os.PathSeparator)) {
tmpPrefixPath += string(os.PathSeparator)
}
prefixPath = tmpPrefixPath
}
// TODO: check if prefixPath starts with bucketDir
// Case #1: if prefixPath is /mnt/mys3/mybucket/2012/photos/paris, then
// dirDepth is /mnt/mys3/mybucket/2012/photos
// Case #2: if prefixPath is /mnt/mys3/mybucket/2012/photos/, then
// dirDepth is /mnt/mys3/mybucket/2012/photos
dirDepth = filepath.Dir(prefixPath)
scanDir = dirDepth
} else {
prefixPath = bucketDir
}
if markerPath != "" {
if !filepath.IsAbs(markerPath) {
tmpMarkerPath := filepath.Join(bucketDir, markerPath)
if strings.HasSuffix(markerPath, string(os.PathSeparator)) {
tmpMarkerPath += string(os.PathSeparator)
}
markerPath = tmpMarkerPath
}
// TODO: check markerPath must be a file
if uploadIDMarker != "" {
markerPath = filepath.Join(markerPath, uploadIDMarker+uploadIDSuffix)
}
// TODO: check if markerPath starts with bucketDir
// TODO: check if markerPath starts with prefixPath
// Case #1: if markerPath is /mnt/mys3/mybucket/2012/photos/gophercon.png, then
// scanDir is /mnt/mys3/mybucket/2012/photos
// Case #2: if markerPath is /mnt/mys3/mybucket/2012/photos/gophercon.png/1fbd117a-268a-4ed0-85c9-8cc3888cbf20.uploadid, then
// scanDir is /mnt/mys3/mybucket/2012/photos/gophercon.png
// Case #3: if markerPath is /mnt/mys3/mybucket/2012/photos/, then
// scanDir is /mnt/mys3/mybucket/2012/photos
scanDir = filepath.Dir(markerPath)
} else {
markerPath = bucketDir
}
// Have bucketDir ends with os.PathSeparator
if !strings.HasSuffix(bucketDir, string(os.PathSeparator)) {
bucketDir += string(os.PathSeparator)
}
// Remove os.PathSeparator if scanDir ends with
if strings.HasSuffix(scanDir, string(os.PathSeparator)) {
scanDir = filepath.Dir(scanDir)
}
// goroutine - retrieves directory entries, makes ObjectInfo and sends into the channel.
go func() {
defer close(objectInfoCh)
defer close(timeoutCh)
// send function - returns true if ObjectInfo is sent
// within (time.Second * 15) else false on timeout.
send := func(oi multipartObjectInfo) bool {
timer := time.After(time.Second * 15)
select {
case objectInfoCh <- oi:
return true
case <-timer:
timeoutCh <- struct{}{}
return false
}
}
for {
entries, err := filteredReaddir(scanDir,
func(entry DirEntry) bool {
if entry.IsDir() || (entry.IsRegular() && strings.HasSuffix(entry.Name, uploadIDSuffix)) {
return strings.HasPrefix(entry.Name, prefixPath) && entry.Name > markerPath
}
return false
},
true)
if err != nil {
send(multipartObjectInfo{Err: err})
return
}
var entry DirEntry
for len(entries) > 0 {
entry, entries = entries[0], entries[1:]
if entry.IsRegular() {
// Handle uploadid file
name := strings.Replace(filepath.Dir(entry.Name), bucketDir, "", 1)
if name == "" {
// This should not happen ie uploadid file should not be in bucket directory
send(multipartObjectInfo{Err: errors.New("corrupted meta data")})
return
}
uploadID := strings.Split(filepath.Base(entry.Name), uploadIDSuffix)[0]
objInfo := multipartObjectInfo{
Name: name,
UploadID: uploadID,
ModifiedTime: entry.ModTime,
}
if !send(objInfo) {
return
}
continue
}
subentries, err := filteredReaddir(entry.Name,
func(entry DirEntry) bool {
return entry.IsDir() || (entry.IsRegular() && strings.HasSuffix(entry.Name, uploadIDSuffix))
},
true)
if err != nil {
send(multipartObjectInfo{Err: err})
return
}
subDirFound := false
uploadIDEntries := []DirEntry{}
// If subentries has a directory, then current entry needs to be sent
for _, subentry := range subentries {
if subentry.IsDir() {
subDirFound = true
if recursive {
break
}
}
if !recursive && subentry.IsRegular() {
uploadIDEntries = append(uploadIDEntries, subentry)
}
}
if subDirFound || len(subentries) == 0 {
objInfo := multipartObjectInfo{
Name: strings.Replace(entry.Name, bucketDir, "", 1),
ModifiedTime: entry.ModTime,
IsDir: true,
}
if !send(objInfo) {
return
}
}
if recursive {
entries = append(subentries, entries...)
} else {
entries = append(uploadIDEntries, entries...)
}
}
if !recursive {
break
}
markerPath = scanDir + string(os.PathSeparator)
if scanDir = filepath.Dir(scanDir); scanDir < dirDepth {
break
}
}
}()
return multipartObjectInfoChannel{ch: objectInfoCh, timeoutCh: timeoutCh}
}
// multipartObjectInfo - Multipart object info
type multipartObjectInfo struct {
Name string
UploadID string
ModifiedTime time.Time
IsDir bool
Err error
}
// multipartObjectInfoChannel - multipart object info channel
type multipartObjectInfoChannel struct {
ch <-chan multipartObjectInfo
objInfo *multipartObjectInfo
closed bool
timeoutCh <-chan struct{}
timedOut bool
}
func (oic *multipartObjectInfoChannel) Read() (multipartObjectInfo, bool) {
if oic.closed {
return multipartObjectInfo{}, false
}
if oic.objInfo == nil {
// First read.
if oi, ok := <-oic.ch; ok {
oic.objInfo = &oi
} else {
oic.closed = true
return multipartObjectInfo{}, false
}
}
retObjInfo := *oic.objInfo
status := true
oic.objInfo = nil
// Read once more to know whether it was last read.
if oi, ok := <-oic.ch; ok {
oic.objInfo = &oi
} else {
oic.closed = true
}
return retObjInfo, status
}
// IsClosed - return whether channel is closed or not.
func (oic multipartObjectInfoChannel) IsClosed() bool {
if oic.objInfo != nil {
return false
}
return oic.closed
}
// IsTimedOut - return whether channel is closed due to timeout.
func (oic multipartObjectInfoChannel) IsTimedOut() bool {
if oic.timedOut {
return true
}
select {
case _, ok := <-oic.timeoutCh:
if ok {
oic.timedOut = true
return true
}
return false
default:
return false
}
}

File diff suppressed because it is too large Load Diff

54
fs.go

@ -17,10 +17,7 @@
package main
import (
"os"
"path/filepath"
"sync"
"time"
"github.com/minio/minio/pkg/probe"
)
@ -33,58 +30,32 @@ type listObjectParams struct {
prefix string
}
// listMultipartObjectParams - list multipart object params used for list multipart object map
type listMultipartObjectParams struct {
bucket string
delimiter string
keyMarker string
prefix string
uploadIDMarker string
}
// Filesystem - local variables
type Filesystem struct {
path string
minFreeDisk int64
rwLock *sync.RWMutex
multiparts *multiparts
listObjectMap map[listObjectParams][]*treeWalker
listObjectMapMutex *sync.Mutex
}
// MultipartSession holds active session information
type multipartSession struct {
TotalParts int
ObjectName string
UploadID string
Initiated time.Time
Parts []partInfo
}
// multiparts collection of many parts
type multiparts struct {
Version string `json:"version"`
ActiveSession map[string]*multipartSession `json:"activeSessions"`
listMultipartObjectMap map[listMultipartObjectParams][]multipartObjectInfoChannel
listMultipartObjectMapMutex *sync.Mutex
}
// newFS instantiate a new filesystem.
func newFS(rootPath string) (ObjectAPI, *probe.Error) {
setFSMultipartsMetadataPath(filepath.Join(rootPath, "$multiparts-session.json"))
var err *probe.Error
// load multiparts session from disk
var mparts *multiparts
mparts, err = loadMultipartsSession()
if err != nil {
if os.IsNotExist(err.ToGoError()) {
mparts = &multiparts{
Version: "1",
ActiveSession: make(map[string]*multipartSession),
}
if err = saveMultipartsSession(*mparts); err != nil {
return nil, err.Trace()
}
} else {
return nil, err.Trace()
}
}
fs := &Filesystem{
rwLock: &sync.RWMutex{},
}
fs.path = rootPath
fs.multiparts = mparts
/// Defaults
@ -94,6 +65,9 @@ func newFS(rootPath string) (ObjectAPI, *probe.Error) {
fs.listObjectMap = make(map[listObjectParams][]*treeWalker)
fs.listObjectMapMutex = &sync.Mutex{}
fs.listMultipartObjectMap = make(map[listMultipartObjectParams][]multipartObjectInfoChannel)
fs.listMultipartObjectMapMutex = &sync.Mutex{}
// Return here.
return fs, nil
}

@ -79,7 +79,7 @@ func testMultipartObjectCreation(c *check.C, create func() ObjectAPI) {
}
objInfo, err := fs.CompleteMultipartUpload("bucket", "key", uploadID, completedParts.Parts)
c.Assert(err, check.IsNil)
c.Assert(objInfo.MD5Sum, check.Equals, "9b7d6f13ba00e24d0b02de92e814891b-10")
c.Assert(objInfo.MD5Sum, check.Equals, "3605d84b1c43b1a664aa7c0d5082d271-10")
}
func testMultipartObjectAbort(c *check.C, create func() ObjectAPI) {

@ -0,0 +1,202 @@
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@ -0,0 +1,133 @@
// Copyright 2015 Red Hat, 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 uuid
import (
"crypto/rand"
"encoding/hex"
"errors"
"fmt"
"io"
"strings"
)
// UUID is 128bits = 16bytes
type UUID [16]byte
func (uuid UUID) String() string {
return fmt.Sprintf("%x-%x-%x-%x-%x", uuid[0:4], uuid[4:6], uuid[6:8], uuid[8:10], uuid[10:])
}
func (uuid UUID) IsZero() bool {
var zeroUuid UUID
return Equal(zeroUuid, uuid)
}
func (uuid UUID) MarshalJSON() ([]byte, error) {
return []byte(`"` + uuid.String() + `"`), nil
}
func (uuid *UUID) UnmarshalJSON(b []byte) error {
if u, err := Parse(string(b)); err != nil {
return err
} else {
copy(uuid[:], u[:])
return nil
}
}
func New() (*UUID, error) {
uuid := new(UUID)
n, err := io.ReadFull(rand.Reader, uuid[:])
if err != nil {
return nil, err
} else if n != len(uuid) {
return nil, errors.New(fmt.Sprintf("insufficient random data (expected: %d, read: %d)", len(uuid), n))
} else {
// variant bits; for more info
// see https://www.ietf.org/rfc/rfc4122.txt section 4.1.1
uuid[8] = uuid[8]&0x3f | 0x80
// version 4 (pseudo-random); for more info
// see https://www.ietf.org/rfc/rfc4122.txt section 4.1.3
uuid[6] = uuid[6]&0x0f | 0x40
}
return uuid, nil
}
func Equal(uuid1 UUID, uuid2 UUID) bool {
for i, v := range uuid1 {
if v != uuid2[i] {
return false
}
}
return true
}
func Parse(s string) (*UUID, error) {
// the string format should be either in
// xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx (or)
// xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
// If the uuid is marshaled by us we add " " around the uuid.
// while parsing this, we have to remove the " " around the
// uuid. So we check if uuid has " " around it, if yes we remove
// it.
if strings.HasPrefix(s, "\"") && strings.HasSuffix(s, "\"") {
s = s[1 : len(s)-1]
}
uuid := new(UUID)
if len(s) == 36 {
if ba, err := hex.DecodeString(s[0:8]); err == nil {
copy(uuid[:4], ba)
} else {
return nil, err
}
if ba, err := hex.DecodeString(s[9:13]); err == nil {
copy(uuid[4:], ba)
} else {
return nil, err
}
if ba, err := hex.DecodeString(s[14:18]); err == nil {
copy(uuid[6:], ba)
} else {
return nil, err
}
if ba, err := hex.DecodeString(s[19:23]); err == nil {
copy(uuid[8:], ba)
} else {
return nil, err
}
if ba, err := hex.DecodeString(s[24:]); err == nil {
copy(uuid[10:], ba)
} else {
return nil, err
}
} else if len(s) == 32 {
if ba, err := hex.DecodeString(s); err == nil {
copy(uuid[:], ba)
} else {
return nil, err
}
} else {
return nil, errors.New("unknown UUID string " + s)
}
return uuid, nil
}

@ -107,6 +107,12 @@
"revision": "eb527c8097e0f19a3ff7b253a3fe70545070f420",
"revisionTime": "2015-08-29T22:34:20-07:00"
},
{
"checksumSHA1": "u0hXGADM3JDza8YjgiyNJpAJk8g=",
"path": "github.com/skyrings/skyring-common/tools/uuid",
"revision": "762fd2bfc12e766d90478d638255981ab1966a3d",
"revisionTime": "2016-03-24T19:44:43+05:30"
},
{
"path": "golang.org/x/crypto/bcrypt",
"revision": "7b85b097bf7527677d54d3220065e966a0e3b613",
@ -122,5 +128,6 @@
"revision": "11d3bc7aa68e238947792f30573146a3231fc0f1",
"revisionTime": "2015-07-29T10:04:31+02:00"
}
]
],
"rootPath": "github.com/minio/minio"
}

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