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66174692a2
add a hint on the disk to allow for tracking fresh disk being healed, to allow for restartable heals, and also use this as a way to track and remove disks. There are more pending changes where we should move all the disk formatting logic to backend drives, this PR doesn't deal with this refactor instead makes it easier to track healing in the future.
306 lines
8.6 KiB
Go
306 lines
8.6 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2019-2020 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"context"
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"io"
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)
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// Detects change in underlying disk.
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type xlStorageDiskIDCheck struct {
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storage *xlStorage
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diskID string
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}
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func (p *xlStorageDiskIDCheck) String() string {
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return p.storage.String()
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}
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func (p *xlStorageDiskIDCheck) IsOnline() bool {
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storedDiskID, err := p.storage.GetDiskID()
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if err != nil {
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return false
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}
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return storedDiskID == p.diskID
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}
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func (p *xlStorageDiskIDCheck) IsLocal() bool {
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return p.storage.IsLocal()
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}
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func (p *xlStorageDiskIDCheck) Endpoint() Endpoint {
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return p.storage.Endpoint()
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}
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func (p *xlStorageDiskIDCheck) Hostname() string {
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return p.storage.Hostname()
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}
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func (p *xlStorageDiskIDCheck) Healing() bool {
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return p.storage.Healing()
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}
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func (p *xlStorageDiskIDCheck) CrawlAndGetDataUsage(ctx context.Context, cache dataUsageCache) (dataUsageCache, error) {
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if err := p.checkDiskStale(); err != nil {
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return dataUsageCache{}, err
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}
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return p.storage.CrawlAndGetDataUsage(ctx, cache)
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}
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func (p *xlStorageDiskIDCheck) Close() error {
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return p.storage.Close()
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}
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func (p *xlStorageDiskIDCheck) GetDiskID() (string, error) {
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return p.storage.GetDiskID()
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}
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func (p *xlStorageDiskIDCheck) SetDiskID(id string) {
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p.diskID = id
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}
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func (p *xlStorageDiskIDCheck) checkDiskStale() error {
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if p.diskID == "" {
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// For empty disk-id we allow the call as the server might be
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// coming up and trying to read format.json or create format.json
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return nil
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}
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storedDiskID, err := p.storage.GetDiskID()
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if err != nil {
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// return any error generated while reading `format.json`
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return err
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}
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if err == nil && p.diskID == storedDiskID {
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return nil
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}
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// not the same disk we remember, take it offline.
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return errDiskNotFound
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}
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func (p *xlStorageDiskIDCheck) DiskInfo(ctx context.Context) (info DiskInfo, err error) {
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info, err = p.storage.DiskInfo(ctx)
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if err != nil {
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return info, err
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}
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// check cached diskID against backend
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// only if its non-empty.
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if p.diskID != "" {
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if p.diskID != info.ID {
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return info, errDiskNotFound
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}
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}
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return info, nil
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}
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func (p *xlStorageDiskIDCheck) MakeVolBulk(ctx context.Context, volumes ...string) (err error) {
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if err = p.checkDiskStale(); err != nil {
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return err
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}
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return p.storage.MakeVolBulk(ctx, volumes...)
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}
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func (p *xlStorageDiskIDCheck) MakeVol(ctx context.Context, volume string) (err error) {
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if err = p.checkDiskStale(); err != nil {
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return err
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}
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return p.storage.MakeVol(ctx, volume)
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}
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func (p *xlStorageDiskIDCheck) ListVols(ctx context.Context) ([]VolInfo, error) {
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if err := p.checkDiskStale(); err != nil {
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return nil, err
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}
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return p.storage.ListVols(ctx)
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}
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func (p *xlStorageDiskIDCheck) StatVol(ctx context.Context, volume string) (vol VolInfo, err error) {
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if err = p.checkDiskStale(); err != nil {
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return vol, err
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}
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return p.storage.StatVol(ctx, volume)
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}
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func (p *xlStorageDiskIDCheck) DeleteVol(ctx context.Context, volume string, forceDelete bool) (err error) {
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if err = p.checkDiskStale(); err != nil {
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return err
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}
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return p.storage.DeleteVol(ctx, volume, forceDelete)
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}
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func (p *xlStorageDiskIDCheck) WalkVersions(ctx context.Context, volume, dirPath, marker string, recursive bool, endWalkCh <-chan struct{}) (chan FileInfoVersions, error) {
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if err := p.checkDiskStale(); err != nil {
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return nil, err
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}
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return p.storage.WalkVersions(ctx, volume, dirPath, marker, recursive, endWalkCh)
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}
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func (p *xlStorageDiskIDCheck) Walk(ctx context.Context, volume, dirPath, marker string, recursive bool, endWalkCh <-chan struct{}) (chan FileInfo, error) {
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if err := p.checkDiskStale(); err != nil {
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return nil, err
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}
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return p.storage.Walk(ctx, volume, dirPath, marker, recursive, endWalkCh)
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}
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func (p *xlStorageDiskIDCheck) WalkSplunk(ctx context.Context, volume, dirPath, marker string, endWalkCh <-chan struct{}) (chan FileInfo, error) {
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if err := p.checkDiskStale(); err != nil {
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return nil, err
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}
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return p.storage.WalkSplunk(ctx, volume, dirPath, marker, endWalkCh)
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}
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func (p *xlStorageDiskIDCheck) ListDir(ctx context.Context, volume, dirPath string, count int) ([]string, error) {
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if err := p.checkDiskStale(); err != nil {
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return nil, err
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}
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return p.storage.ListDir(ctx, volume, dirPath, count)
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}
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func (p *xlStorageDiskIDCheck) ReadFile(ctx context.Context, volume string, path string, offset int64, buf []byte, verifier *BitrotVerifier) (n int64, err error) {
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if err := p.checkDiskStale(); err != nil {
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return 0, err
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}
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return p.storage.ReadFile(ctx, volume, path, offset, buf, verifier)
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}
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func (p *xlStorageDiskIDCheck) AppendFile(ctx context.Context, volume string, path string, buf []byte) (err error) {
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if err = p.checkDiskStale(); err != nil {
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return err
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}
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return p.storage.AppendFile(ctx, volume, path, buf)
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}
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func (p *xlStorageDiskIDCheck) CreateFile(ctx context.Context, volume, path string, size int64, reader io.Reader) error {
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if err := p.checkDiskStale(); err != nil {
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return err
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}
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return p.storage.CreateFile(ctx, volume, path, size, reader)
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}
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func (p *xlStorageDiskIDCheck) ReadFileStream(ctx context.Context, volume, path string, offset, length int64) (io.ReadCloser, error) {
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if err := p.checkDiskStale(); err != nil {
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return nil, err
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}
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return p.storage.ReadFileStream(ctx, volume, path, offset, length)
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}
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func (p *xlStorageDiskIDCheck) RenameFile(ctx context.Context, srcVolume, srcPath, dstVolume, dstPath string) error {
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if err := p.checkDiskStale(); err != nil {
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return err
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}
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return p.storage.RenameFile(ctx, srcVolume, srcPath, dstVolume, dstPath)
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}
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func (p *xlStorageDiskIDCheck) RenameData(ctx context.Context, srcVolume, srcPath, dataDir, dstVolume, dstPath string) error {
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if err := p.checkDiskStale(); err != nil {
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return err
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}
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return p.storage.RenameData(ctx, srcVolume, srcPath, dataDir, dstVolume, dstPath)
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}
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func (p *xlStorageDiskIDCheck) CheckParts(ctx context.Context, volume string, path string, fi FileInfo) (err error) {
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if err = p.checkDiskStale(); err != nil {
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return err
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}
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return p.storage.CheckParts(ctx, volume, path, fi)
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}
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func (p *xlStorageDiskIDCheck) CheckFile(ctx context.Context, volume string, path string) (err error) {
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if err = p.checkDiskStale(); err != nil {
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return err
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}
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return p.storage.CheckFile(ctx, volume, path)
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}
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func (p *xlStorageDiskIDCheck) DeleteFile(ctx context.Context, volume string, path string) (err error) {
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if err = p.checkDiskStale(); err != nil {
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return err
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}
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return p.storage.DeleteFile(ctx, volume, path)
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}
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func (p *xlStorageDiskIDCheck) DeleteVersions(ctx context.Context, volume string, versions []FileInfo) (errs []error) {
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if err := p.checkDiskStale(); err != nil {
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errs = make([]error, len(versions))
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for i := range errs {
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errs[i] = err
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}
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return errs
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}
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return p.storage.DeleteVersions(ctx, volume, versions)
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}
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func (p *xlStorageDiskIDCheck) VerifyFile(ctx context.Context, volume, path string, fi FileInfo) error {
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if err := p.checkDiskStale(); err != nil {
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return err
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}
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return p.storage.VerifyFile(ctx, volume, path, fi)
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}
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func (p *xlStorageDiskIDCheck) WriteAll(ctx context.Context, volume string, path string, reader io.Reader) (err error) {
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if err = p.checkDiskStale(); err != nil {
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return err
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}
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return p.storage.WriteAll(ctx, volume, path, reader)
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}
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func (p *xlStorageDiskIDCheck) DeleteVersion(ctx context.Context, volume, path string, fi FileInfo) (err error) {
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if err = p.checkDiskStale(); err != nil {
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return err
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}
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return p.storage.DeleteVersion(ctx, volume, path, fi)
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}
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func (p *xlStorageDiskIDCheck) WriteMetadata(ctx context.Context, volume, path string, fi FileInfo) (err error) {
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if err = p.checkDiskStale(); err != nil {
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return err
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}
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return p.storage.WriteMetadata(ctx, volume, path, fi)
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}
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func (p *xlStorageDiskIDCheck) ReadVersion(ctx context.Context, volume, path, versionID string) (fi FileInfo, err error) {
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if err = p.checkDiskStale(); err != nil {
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return fi, err
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}
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return p.storage.ReadVersion(ctx, volume, path, versionID)
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}
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func (p *xlStorageDiskIDCheck) ReadAll(ctx context.Context, volume string, path string) (buf []byte, err error) {
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if err = p.checkDiskStale(); err != nil {
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return nil, err
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}
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return p.storage.ReadAll(ctx, volume, path)
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}
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