2018-03-28 23:14:06 +02:00
|
|
|
/*
|
2019-04-09 20:39:42 +02:00
|
|
|
* MinIO Cloud Storage, (C) 2018 MinIO, Inc.
|
2018-03-28 23:14:06 +02:00
|
|
|
*
|
|
|
|
* 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 (
|
2018-04-06 00:04:40 +02:00
|
|
|
"context"
|
2018-03-28 23:14:06 +02:00
|
|
|
"errors"
|
|
|
|
"fmt"
|
|
|
|
"io"
|
2019-08-10 02:09:08 +02:00
|
|
|
"io/ioutil"
|
2018-03-28 23:14:06 +02:00
|
|
|
"os"
|
2019-08-10 02:09:08 +02:00
|
|
|
"path"
|
|
|
|
"path/filepath"
|
2018-03-28 23:14:06 +02:00
|
|
|
"reflect"
|
2019-08-10 02:09:08 +02:00
|
|
|
"strings"
|
2018-03-28 23:14:06 +02:00
|
|
|
|
2020-01-08 12:31:43 +01:00
|
|
|
jsoniter "github.com/json-iterator/go"
|
2018-04-06 00:04:40 +02:00
|
|
|
"github.com/minio/minio/cmd/logger"
|
2019-08-23 19:13:22 +02:00
|
|
|
"github.com/minio/sio"
|
2018-03-28 23:14:06 +02:00
|
|
|
)
|
|
|
|
|
|
|
|
const (
|
|
|
|
// Represents Cache format json holding details on all other cache drives in use.
|
|
|
|
formatCache = "cache"
|
|
|
|
|
|
|
|
// formatCacheV1.Cache.Version
|
|
|
|
formatCacheVersionV1 = "1"
|
2019-08-10 02:09:08 +02:00
|
|
|
formatCacheVersionV2 = "2"
|
2018-03-28 23:14:06 +02:00
|
|
|
|
|
|
|
formatMetaVersion1 = "1"
|
2018-03-29 23:38:26 +02:00
|
|
|
|
|
|
|
formatCacheV1DistributionAlgo = "CRCMOD"
|
2018-03-28 23:14:06 +02:00
|
|
|
)
|
|
|
|
|
|
|
|
// Represents the current cache structure with list of
|
|
|
|
// disks comprising the disk cache
|
|
|
|
// formatCacheV1 - structure holds format config version '1'.
|
|
|
|
type formatCacheV1 struct {
|
|
|
|
formatMetaV1
|
|
|
|
Cache struct {
|
|
|
|
Version string `json:"version"` // Version of 'cache' format.
|
|
|
|
This string `json:"this"` // This field carries assigned disk uuid.
|
|
|
|
// Disks field carries the input disk order generated the first
|
|
|
|
// time when fresh disks were supplied.
|
|
|
|
Disks []string `json:"disks"`
|
2018-03-29 23:38:26 +02:00
|
|
|
// Distribution algorithm represents the hashing algorithm
|
|
|
|
// to pick the right set index for an object.
|
|
|
|
DistributionAlgo string `json:"distributionAlgo"`
|
2018-03-28 23:14:06 +02:00
|
|
|
} `json:"cache"` // Cache field holds cache format.
|
|
|
|
}
|
|
|
|
|
2019-08-10 02:09:08 +02:00
|
|
|
// formatCacheV2 is same as formatCacheV1
|
|
|
|
type formatCacheV2 = formatCacheV1
|
|
|
|
|
2018-03-28 23:14:06 +02:00
|
|
|
// Used to detect the version of "cache" format.
|
|
|
|
type formatCacheVersionDetect struct {
|
|
|
|
Cache struct {
|
|
|
|
Version string `json:"version"`
|
|
|
|
} `json:"cache"`
|
|
|
|
}
|
|
|
|
|
|
|
|
// Return a slice of format, to be used to format uninitialized disks.
|
2019-08-10 02:09:08 +02:00
|
|
|
func newFormatCacheV2(drives []string) []*formatCacheV2 {
|
2018-03-28 23:14:06 +02:00
|
|
|
diskCount := len(drives)
|
|
|
|
var disks = make([]string, diskCount)
|
|
|
|
|
2019-08-10 02:09:08 +02:00
|
|
|
var formats = make([]*formatCacheV2, diskCount)
|
2018-03-28 23:14:06 +02:00
|
|
|
|
|
|
|
for i := 0; i < diskCount; i++ {
|
2019-08-10 02:09:08 +02:00
|
|
|
format := &formatCacheV2{}
|
2018-03-28 23:14:06 +02:00
|
|
|
format.Version = formatMetaVersion1
|
|
|
|
format.Format = formatCache
|
2019-08-10 02:09:08 +02:00
|
|
|
format.Cache.Version = formatCacheVersionV2
|
2018-03-29 23:38:26 +02:00
|
|
|
format.Cache.DistributionAlgo = formatCacheV1DistributionAlgo
|
2018-03-28 23:14:06 +02:00
|
|
|
format.Cache.This = mustGetUUID()
|
|
|
|
formats[i] = format
|
|
|
|
disks[i] = formats[i].Cache.This
|
|
|
|
}
|
|
|
|
for i := 0; i < diskCount; i++ {
|
|
|
|
format := formats[i]
|
|
|
|
format.Cache.Disks = disks
|
|
|
|
}
|
|
|
|
return formats
|
|
|
|
}
|
|
|
|
|
2019-08-10 02:09:08 +02:00
|
|
|
// Returns formatCache.Cache.Version
|
|
|
|
func formatCacheGetVersion(r io.ReadSeeker) (string, error) {
|
|
|
|
format := &formatCacheVersionDetect{}
|
|
|
|
if err := jsonLoad(r, format); err != nil {
|
|
|
|
return "", err
|
|
|
|
}
|
|
|
|
return format.Cache.Version, nil
|
|
|
|
}
|
|
|
|
|
2018-03-28 23:14:06 +02:00
|
|
|
// Creates a new cache format.json if unformatted.
|
|
|
|
func createFormatCache(fsFormatPath string, format *formatCacheV1) error {
|
|
|
|
// open file using READ & WRITE permission
|
|
|
|
var file, err = os.OpenFile(fsFormatPath, os.O_RDWR|os.O_CREATE, 0600)
|
|
|
|
if err != nil {
|
2018-04-06 00:04:40 +02:00
|
|
|
return err
|
2018-03-28 23:14:06 +02:00
|
|
|
}
|
|
|
|
// Close the locked file upon return.
|
|
|
|
defer file.Close()
|
|
|
|
|
|
|
|
fi, err := file.Stat()
|
|
|
|
if err != nil {
|
2018-04-06 00:04:40 +02:00
|
|
|
return err
|
2018-03-28 23:14:06 +02:00
|
|
|
}
|
|
|
|
if fi.Size() != 0 {
|
|
|
|
// format.json already got created because of another minio process's createFormatCache()
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
return jsonSave(file, format)
|
|
|
|
}
|
|
|
|
|
|
|
|
// This function creates a cache format file on disk and returns a slice
|
|
|
|
// of format cache config
|
2019-08-10 02:09:08 +02:00
|
|
|
func initFormatCache(ctx context.Context, drives []string) (formats []*formatCacheV2, err error) {
|
|
|
|
nformats := newFormatCacheV2(drives)
|
2018-03-29 23:38:26 +02:00
|
|
|
for _, drive := range drives {
|
|
|
|
_, err = os.Stat(drive)
|
|
|
|
if err == nil {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
if !os.IsNotExist(err) {
|
2018-04-06 00:04:40 +02:00
|
|
|
logger.GetReqInfo(ctx).AppendTags("drive", drive)
|
2019-10-12 03:50:54 +02:00
|
|
|
logger.LogIf(ctx, err, logger.Application)
|
2018-03-28 23:14:06 +02:00
|
|
|
return nil, err
|
|
|
|
}
|
2018-03-29 23:38:26 +02:00
|
|
|
if err = os.Mkdir(drive, 0777); err != nil {
|
2018-04-06 00:04:40 +02:00
|
|
|
logger.GetReqInfo(ctx).AppendTags("drive", drive)
|
2019-10-12 03:50:54 +02:00
|
|
|
logger.LogIf(ctx, err, logger.Application)
|
2018-03-29 23:38:26 +02:00
|
|
|
return nil, err
|
2018-03-28 23:14:06 +02:00
|
|
|
}
|
2018-03-29 23:38:26 +02:00
|
|
|
}
|
|
|
|
for i, drive := range drives {
|
|
|
|
if err = os.Mkdir(pathJoin(drive, minioMetaBucket), 0777); err != nil {
|
|
|
|
if !os.IsExist(err) {
|
2018-04-06 00:04:40 +02:00
|
|
|
logger.GetReqInfo(ctx).AppendTags("drive", drive)
|
|
|
|
logger.LogIf(ctx, err)
|
2018-03-28 23:14:06 +02:00
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
}
|
2018-03-29 23:38:26 +02:00
|
|
|
cacheFormatPath := pathJoin(drive, minioMetaBucket, formatConfigFile)
|
2018-03-28 23:14:06 +02:00
|
|
|
// Fresh disk - create format.json for this cfs
|
|
|
|
if err = createFormatCache(cacheFormatPath, nformats[i]); err != nil {
|
2018-04-06 00:04:40 +02:00
|
|
|
logger.GetReqInfo(ctx).AppendTags("drive", drive)
|
|
|
|
logger.LogIf(ctx, err)
|
2018-03-28 23:14:06 +02:00
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return nformats, nil
|
|
|
|
}
|
|
|
|
|
2019-08-10 02:09:08 +02:00
|
|
|
func loadFormatCache(ctx context.Context, drives []string) ([]*formatCacheV2, bool, error) {
|
|
|
|
formats := make([]*formatCacheV2, len(drives))
|
|
|
|
var formatV2 *formatCacheV2
|
|
|
|
migrating := false
|
2018-03-29 23:38:26 +02:00
|
|
|
for i, drive := range drives {
|
|
|
|
cacheFormatPath := pathJoin(drive, minioMetaBucket, formatConfigFile)
|
2019-08-10 02:09:08 +02:00
|
|
|
f, err := os.OpenFile(cacheFormatPath, os.O_RDWR, 0)
|
|
|
|
|
2018-03-29 23:38:26 +02:00
|
|
|
if err != nil {
|
|
|
|
if os.IsNotExist(err) {
|
|
|
|
continue
|
|
|
|
}
|
2018-04-06 00:04:40 +02:00
|
|
|
logger.LogIf(ctx, err)
|
2019-08-10 02:09:08 +02:00
|
|
|
return nil, migrating, err
|
2018-03-28 23:14:06 +02:00
|
|
|
}
|
|
|
|
defer f.Close()
|
2018-03-29 23:38:26 +02:00
|
|
|
format, err := formatMetaCacheV1(f)
|
|
|
|
if err != nil {
|
2018-03-28 23:14:06 +02:00
|
|
|
continue
|
|
|
|
}
|
2019-08-10 02:09:08 +02:00
|
|
|
formatV2 = format
|
|
|
|
if format.Cache.Version != formatCacheVersionV2 {
|
|
|
|
migrating = true
|
|
|
|
}
|
|
|
|
formats[i] = formatV2
|
2018-03-28 23:14:06 +02:00
|
|
|
}
|
2019-08-10 02:09:08 +02:00
|
|
|
return formats, migrating, nil
|
2018-03-28 23:14:06 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
// unmarshalls the cache format.json into formatCacheV1
|
|
|
|
func formatMetaCacheV1(r io.ReadSeeker) (*formatCacheV1, error) {
|
|
|
|
format := &formatCacheV1{}
|
|
|
|
if err := jsonLoad(r, format); err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
return format, nil
|
|
|
|
}
|
|
|
|
|
2019-08-10 02:09:08 +02:00
|
|
|
func checkFormatCacheValue(format *formatCacheV2, migrating bool) error {
|
|
|
|
if format.Format != formatCache {
|
|
|
|
return fmt.Errorf("Unsupported cache format [%s] found", format.Format)
|
|
|
|
}
|
|
|
|
|
|
|
|
// during migration one or more cache drive(s) formats can be out of sync
|
|
|
|
if migrating {
|
|
|
|
// Validate format version and format type.
|
|
|
|
if format.Version != formatMetaVersion1 {
|
|
|
|
return fmt.Errorf("Unsupported version of cache format [%s] found", format.Version)
|
|
|
|
}
|
|
|
|
if format.Cache.Version != formatCacheVersionV2 && format.Cache.Version != formatCacheVersionV1 {
|
|
|
|
return fmt.Errorf("Unsupported Cache backend format found [%s]", format.Cache.Version)
|
|
|
|
}
|
|
|
|
return nil
|
|
|
|
}
|
2018-03-28 23:14:06 +02:00
|
|
|
// Validate format version and format type.
|
|
|
|
if format.Version != formatMetaVersion1 {
|
|
|
|
return fmt.Errorf("Unsupported version of cache format [%s] found", format.Version)
|
|
|
|
}
|
2019-08-10 02:09:08 +02:00
|
|
|
if format.Cache.Version != formatCacheVersionV2 {
|
2018-03-28 23:14:06 +02:00
|
|
|
return fmt.Errorf("Unsupported Cache backend format found [%s]", format.Cache.Version)
|
|
|
|
}
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
2019-08-10 02:09:08 +02:00
|
|
|
func checkFormatCacheValues(migrating bool, formats []*formatCacheV2) (int, error) {
|
2018-03-28 23:14:06 +02:00
|
|
|
for i, formatCache := range formats {
|
|
|
|
if formatCache == nil {
|
|
|
|
continue
|
|
|
|
}
|
2019-08-10 02:09:08 +02:00
|
|
|
if err := checkFormatCacheValue(formatCache, migrating); err != nil {
|
2018-03-28 23:14:06 +02:00
|
|
|
return i, err
|
|
|
|
}
|
|
|
|
if len(formats) != len(formatCache.Cache.Disks) {
|
|
|
|
return i, fmt.Errorf("Expected number of cache drives %d , got %d",
|
|
|
|
len(formatCache.Cache.Disks), len(formats))
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return -1, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
// checkCacheDisksConsistency - checks if "This" disk uuid on each disk is consistent with all "Disks" slices
|
|
|
|
// across disks.
|
2019-08-10 02:09:08 +02:00
|
|
|
func checkCacheDiskConsistency(formats []*formatCacheV2) error {
|
2018-03-28 23:14:06 +02:00
|
|
|
var disks = make([]string, len(formats))
|
|
|
|
// Collect currently available disk uuids.
|
|
|
|
for index, format := range formats {
|
|
|
|
if format == nil {
|
|
|
|
disks[index] = ""
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
disks[index] = format.Cache.This
|
|
|
|
}
|
|
|
|
for i, format := range formats {
|
|
|
|
if format == nil {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
j := findCacheDiskIndex(disks[i], format.Cache.Disks)
|
|
|
|
if j == -1 {
|
|
|
|
return fmt.Errorf("UUID on positions %d:%d do not match with , expected %s", i, j, disks[i])
|
|
|
|
}
|
|
|
|
if i != j {
|
|
|
|
return fmt.Errorf("UUID on positions %d:%d do not match with , expected %s got %s", i, j, disks[i], format.Cache.Disks[j])
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
// checkCacheDisksSliceConsistency - validate cache Disks order if they are consistent.
|
2019-08-10 02:09:08 +02:00
|
|
|
func checkCacheDisksSliceConsistency(formats []*formatCacheV2) error {
|
2018-03-28 23:14:06 +02:00
|
|
|
var sentinelDisks []string
|
|
|
|
// Extract first valid Disks slice.
|
|
|
|
for _, format := range formats {
|
|
|
|
if format == nil {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
sentinelDisks = format.Cache.Disks
|
|
|
|
break
|
|
|
|
}
|
|
|
|
for _, format := range formats {
|
|
|
|
if format == nil {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
currentDisks := format.Cache.Disks
|
|
|
|
if !reflect.DeepEqual(sentinelDisks, currentDisks) {
|
|
|
|
return errors.New("inconsistent cache drives found")
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
// findCacheDiskIndex returns position of cache disk in JBOD.
|
|
|
|
func findCacheDiskIndex(disk string, disks []string) int {
|
|
|
|
for index, uuid := range disks {
|
|
|
|
if uuid == disk {
|
|
|
|
return index
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return -1
|
|
|
|
}
|
|
|
|
|
|
|
|
// validate whether cache drives order has changed
|
2019-08-10 02:09:08 +02:00
|
|
|
func validateCacheFormats(ctx context.Context, migrating bool, formats []*formatCacheV2) error {
|
2018-03-29 23:38:26 +02:00
|
|
|
count := 0
|
|
|
|
for _, format := range formats {
|
|
|
|
if format == nil {
|
|
|
|
count++
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if count == len(formats) {
|
|
|
|
return errors.New("Cache format files missing on all drives")
|
|
|
|
}
|
2019-08-10 02:09:08 +02:00
|
|
|
if _, err := checkFormatCacheValues(migrating, formats); err != nil {
|
2018-04-06 00:04:40 +02:00
|
|
|
logger.LogIf(ctx, err)
|
2018-03-28 23:14:06 +02:00
|
|
|
return err
|
|
|
|
}
|
|
|
|
if err := checkCacheDisksSliceConsistency(formats); err != nil {
|
2018-04-06 00:04:40 +02:00
|
|
|
logger.LogIf(ctx, err)
|
2018-03-28 23:14:06 +02:00
|
|
|
return err
|
|
|
|
}
|
2018-04-06 00:04:40 +02:00
|
|
|
err := checkCacheDiskConsistency(formats)
|
|
|
|
logger.LogIf(ctx, err)
|
|
|
|
return err
|
2018-03-28 23:14:06 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
// return true if all of the list of cache drives are
|
|
|
|
// fresh disks
|
|
|
|
func cacheDrivesUnformatted(drives []string) bool {
|
|
|
|
count := 0
|
|
|
|
for _, drive := range drives {
|
2018-03-29 23:38:26 +02:00
|
|
|
cacheFormatPath := pathJoin(drive, minioMetaBucket, formatConfigFile)
|
|
|
|
if _, err := os.Stat(cacheFormatPath); os.IsNotExist(err) {
|
2018-03-28 23:14:06 +02:00
|
|
|
count++
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return count == len(drives)
|
|
|
|
}
|
|
|
|
|
|
|
|
// create format.json for each cache drive if fresh disk or load format from disk
|
|
|
|
// Then validate the format for all drives in the cache to ensure order
|
|
|
|
// of cache drives has not changed.
|
2019-08-10 02:09:08 +02:00
|
|
|
func loadAndValidateCacheFormat(ctx context.Context, drives []string) (formats []*formatCacheV2, migrating bool, err error) {
|
2018-03-28 23:14:06 +02:00
|
|
|
if cacheDrivesUnformatted(drives) {
|
2018-04-06 00:04:40 +02:00
|
|
|
formats, err = initFormatCache(ctx, drives)
|
2018-03-28 23:14:06 +02:00
|
|
|
} else {
|
2019-08-10 02:09:08 +02:00
|
|
|
formats, migrating, err = loadFormatCache(ctx, drives)
|
2018-03-28 23:14:06 +02:00
|
|
|
}
|
|
|
|
if err != nil {
|
2019-08-10 02:09:08 +02:00
|
|
|
return nil, false, err
|
2018-03-29 23:38:26 +02:00
|
|
|
}
|
2019-08-10 02:09:08 +02:00
|
|
|
if err = validateCacheFormats(ctx, migrating, formats); err != nil {
|
|
|
|
return nil, false, err
|
|
|
|
}
|
|
|
|
return formats, migrating, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
// reads cached object on disk and writes it back after adding bitrot
|
|
|
|
// hashsum per block as per the new disk cache format.
|
2019-08-23 19:13:22 +02:00
|
|
|
func migrateCacheData(ctx context.Context, c *diskCache, bucket, object, oldfile, destDir string, metadata map[string]string) error {
|
2019-08-10 02:09:08 +02:00
|
|
|
st, err := os.Stat(oldfile)
|
|
|
|
if err != nil {
|
|
|
|
err = osErrToFSFileErr(err)
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
readCloser, err := readCacheFileStream(oldfile, 0, st.Size())
|
|
|
|
if err != nil {
|
|
|
|
return err
|
2018-03-28 23:14:06 +02:00
|
|
|
}
|
2019-08-23 19:13:22 +02:00
|
|
|
var reader io.Reader = readCloser
|
|
|
|
|
|
|
|
actualSize := uint64(st.Size())
|
|
|
|
if globalCacheKMS != nil {
|
|
|
|
reader, err = newCacheEncryptReader(readCloser, bucket, object, metadata)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
actualSize, _ = sio.EncryptedSize(uint64(st.Size()))
|
|
|
|
}
|
2019-12-08 22:58:04 +01:00
|
|
|
_, err = c.bitrotWriteToCache(destDir, cacheDataFile, reader, uint64(actualSize))
|
2019-08-10 02:09:08 +02:00
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
// migrate cache contents from old cacheFS format to new backend format
|
|
|
|
// new format is flat
|
|
|
|
// sha(bucket,object)/ <== dir name
|
|
|
|
// - part.1 <== data
|
|
|
|
// - cache.json <== metadata
|
|
|
|
func migrateOldCache(ctx context.Context, c *diskCache) error {
|
|
|
|
oldCacheBucketsPath := path.Join(c.dir, minioMetaBucket, "buckets")
|
|
|
|
cacheFormatPath := pathJoin(c.dir, minioMetaBucket, formatConfigFile)
|
|
|
|
|
|
|
|
if _, err := os.Stat(oldCacheBucketsPath); err != nil {
|
|
|
|
// remove .minio.sys sub directories
|
|
|
|
removeAll(path.Join(c.dir, minioMetaBucket, "multipart"))
|
|
|
|
removeAll(path.Join(c.dir, minioMetaBucket, "tmp"))
|
|
|
|
removeAll(path.Join(c.dir, minioMetaBucket, "trash"))
|
|
|
|
removeAll(path.Join(c.dir, minioMetaBucket, "buckets"))
|
|
|
|
// just migrate cache format
|
|
|
|
return migrateCacheFormatJSON(cacheFormatPath)
|
|
|
|
}
|
|
|
|
|
|
|
|
buckets, err := readDir(oldCacheBucketsPath)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
for _, bucket := range buckets {
|
2019-08-23 19:13:22 +02:00
|
|
|
bucket = strings.TrimSuffix(bucket, SlashSeparator)
|
2019-08-10 02:09:08 +02:00
|
|
|
var objMetaPaths []string
|
|
|
|
root := path.Join(oldCacheBucketsPath, bucket)
|
|
|
|
err := filepath.Walk(root, func(path string, info os.FileInfo, err error) error {
|
|
|
|
if strings.HasSuffix(path, cacheMetaJSONFile) {
|
|
|
|
objMetaPaths = append(objMetaPaths, path)
|
|
|
|
}
|
|
|
|
return nil
|
|
|
|
})
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
for _, oMeta := range objMetaPaths {
|
|
|
|
objSlice := strings.SplitN(oMeta, cacheMetaJSONFile, 2)
|
|
|
|
object := strings.TrimPrefix(objSlice[0], path.Join(oldCacheBucketsPath, bucket))
|
|
|
|
object = strings.TrimSuffix(object, "/")
|
|
|
|
|
|
|
|
destdir := getCacheSHADir(c.dir, bucket, object)
|
|
|
|
if err := os.MkdirAll(destdir, 0777); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
prevCachedPath := path.Join(c.dir, bucket, object)
|
2019-08-23 19:13:22 +02:00
|
|
|
|
|
|
|
// get old cached metadata
|
|
|
|
oldMetaPath := pathJoin(oldCacheBucketsPath, bucket, object, cacheMetaJSONFile)
|
|
|
|
metaPath := pathJoin(destdir, cacheMetaJSONFile)
|
|
|
|
metaBytes, err := ioutil.ReadFile(oldMetaPath)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
// marshal cache metadata after adding version and stat info
|
|
|
|
meta := &cacheMeta{}
|
2020-01-08 12:31:43 +01:00
|
|
|
var json = jsoniter.ConfigCompatibleWithStandardLibrary
|
2019-08-23 19:13:22 +02:00
|
|
|
if err = json.Unmarshal(metaBytes, &meta); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
2019-08-10 02:09:08 +02:00
|
|
|
// move cached object to new cache directory path
|
|
|
|
// migrate cache data and add bit-rot protection hash sum
|
|
|
|
// at the start of each block
|
2019-08-23 19:13:22 +02:00
|
|
|
if err := migrateCacheData(ctx, c, bucket, object, prevCachedPath, destdir, meta.Meta); err != nil {
|
2019-08-10 02:09:08 +02:00
|
|
|
continue
|
|
|
|
}
|
|
|
|
stat, err := os.Stat(prevCachedPath)
|
|
|
|
if err != nil {
|
|
|
|
if err == errFileNotFound {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
logger.LogIf(ctx, err)
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
// old cached file can now be removed
|
|
|
|
if err := os.Remove(prevCachedPath); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
// move cached metadata after changing cache metadata version
|
|
|
|
meta.Checksum = CacheChecksumInfoV1{Algorithm: HighwayHash256S.String(), Blocksize: cacheBlkSize}
|
|
|
|
meta.Version = cacheMetaVersion
|
|
|
|
meta.Stat.Size = stat.Size()
|
|
|
|
meta.Stat.ModTime = stat.ModTime()
|
|
|
|
jsonData, err := json.Marshal(meta)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
if err = ioutil.WriteFile(metaPath, jsonData, 0644); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// delete old bucket from cache, now that all contents are cleared
|
|
|
|
removeAll(path.Join(c.dir, bucket))
|
|
|
|
}
|
|
|
|
|
|
|
|
// remove .minio.sys sub directories
|
|
|
|
removeAll(path.Join(c.dir, minioMetaBucket, "multipart"))
|
|
|
|
removeAll(path.Join(c.dir, minioMetaBucket, "tmp"))
|
|
|
|
removeAll(path.Join(c.dir, minioMetaBucket, "trash"))
|
|
|
|
removeAll(path.Join(c.dir, minioMetaBucket, "buckets"))
|
|
|
|
|
|
|
|
return migrateCacheFormatJSON(cacheFormatPath)
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
func migrateCacheFormatJSON(cacheFormatPath string) error {
|
|
|
|
// now migrate format.json
|
|
|
|
f, err := os.OpenFile(cacheFormatPath, os.O_RDWR, 0)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
defer f.Close()
|
|
|
|
formatV1 := formatCacheV1{}
|
|
|
|
if err := jsonLoad(f, &formatV1); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
formatV2 := &formatCacheV2{}
|
|
|
|
formatV2.formatMetaV1 = formatV1.formatMetaV1
|
|
|
|
formatV2.Version = formatMetaVersion1
|
|
|
|
formatV2.Cache = formatV1.Cache
|
|
|
|
formatV2.Cache.Version = formatCacheVersionV2
|
|
|
|
if err := jsonSave(f, formatV2); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
return nil
|
2018-03-28 23:14:06 +02:00
|
|
|
}
|