306 lines
8.1 KiB
Go
306 lines
8.1 KiB
Go
/*
|
|
* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package cmd
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
"sort"
|
|
"time"
|
|
|
|
"github.com/minio/minio/cmd/logger"
|
|
"github.com/minio/minio/pkg/color"
|
|
"github.com/minio/minio/pkg/console"
|
|
"github.com/minio/minio/pkg/madmin"
|
|
"github.com/minio/minio/pkg/wildcard"
|
|
)
|
|
|
|
const (
|
|
bgHealingUUID = "0000-0000-0000-0000"
|
|
)
|
|
|
|
// NewBgHealSequence creates a background healing sequence
|
|
// operation which scans all objects and heal them.
|
|
func newBgHealSequence() *healSequence {
|
|
reqInfo := &logger.ReqInfo{API: "BackgroundHeal"}
|
|
ctx, cancelCtx := context.WithCancel(logger.SetReqInfo(GlobalContext, reqInfo))
|
|
|
|
hs := madmin.HealOpts{
|
|
// Remove objects that do not have read-quorum
|
|
Remove: true,
|
|
ScanMode: madmin.HealNormalScan,
|
|
}
|
|
|
|
return &healSequence{
|
|
sourceCh: make(chan healSource),
|
|
respCh: make(chan healResult),
|
|
startTime: UTCNow(),
|
|
clientToken: bgHealingUUID,
|
|
// run-background heal with reserved bucket
|
|
bucket: minioReservedBucket,
|
|
settings: hs,
|
|
currentStatus: healSequenceStatus{
|
|
Summary: healNotStartedStatus,
|
|
HealSettings: hs,
|
|
},
|
|
cancelCtx: cancelCtx,
|
|
ctx: ctx,
|
|
reportProgress: false,
|
|
scannedItemsMap: make(map[madmin.HealItemType]int64),
|
|
healedItemsMap: make(map[madmin.HealItemType]int64),
|
|
healFailedItemsMap: make(map[string]int64),
|
|
}
|
|
}
|
|
|
|
// getBackgroundHealStatus will return the
|
|
func getBackgroundHealStatus(ctx context.Context, o ObjectLayer) (madmin.BgHealState, bool) {
|
|
if globalBackgroundHealState == nil {
|
|
return madmin.BgHealState{}, false
|
|
}
|
|
|
|
bgSeq, ok := globalBackgroundHealState.getHealSequenceByToken(bgHealingUUID)
|
|
if !ok {
|
|
return madmin.BgHealState{}, false
|
|
}
|
|
|
|
var healDisksMap = map[string]struct{}{}
|
|
for _, ep := range getLocalDisksToHeal() {
|
|
healDisksMap[ep.String()] = struct{}{}
|
|
}
|
|
status := madmin.BgHealState{
|
|
ScannedItemsCount: bgSeq.getScannedItemsCount(),
|
|
}
|
|
|
|
if o == nil {
|
|
healing := globalBackgroundHealState.getLocalHealingDisks()
|
|
for _, disk := range healing {
|
|
status.HealDisks = append(status.HealDisks, disk.Endpoint)
|
|
}
|
|
|
|
return status, true
|
|
}
|
|
|
|
// ignores any errors here.
|
|
si, _ := o.StorageInfo(ctx)
|
|
|
|
indexed := make(map[string][]madmin.Disk)
|
|
for _, disk := range si.Disks {
|
|
setIdx := fmt.Sprintf("%d-%d", disk.PoolIndex, disk.SetIndex)
|
|
indexed[setIdx] = append(indexed[setIdx], disk)
|
|
}
|
|
|
|
for id, disks := range indexed {
|
|
ss := madmin.SetStatus{
|
|
ID: id,
|
|
SetIndex: disks[0].SetIndex,
|
|
PoolIndex: disks[0].PoolIndex,
|
|
}
|
|
for _, disk := range disks {
|
|
ss.Disks = append(ss.Disks, disk)
|
|
if disk.Healing {
|
|
ss.HealStatus = "Healing"
|
|
ss.HealPriority = "high"
|
|
status.HealDisks = append(status.HealDisks, disk.Endpoint)
|
|
}
|
|
}
|
|
sortDisks(ss.Disks)
|
|
status.Sets = append(status.Sets, ss)
|
|
}
|
|
sort.Slice(status.Sets, func(i, j int) bool {
|
|
return status.Sets[i].ID < status.Sets[j].ID
|
|
})
|
|
|
|
return status, true
|
|
|
|
}
|
|
|
|
func mustGetHealSequence(ctx context.Context) *healSequence {
|
|
// Get background heal sequence to send elements to heal
|
|
for {
|
|
globalHealStateLK.RLock()
|
|
hstate := globalBackgroundHealState
|
|
globalHealStateLK.RUnlock()
|
|
|
|
if hstate == nil {
|
|
time.Sleep(time.Second)
|
|
continue
|
|
}
|
|
|
|
bgSeq, ok := hstate.getHealSequenceByToken(bgHealingUUID)
|
|
if !ok {
|
|
time.Sleep(time.Second)
|
|
continue
|
|
}
|
|
return bgSeq
|
|
}
|
|
}
|
|
|
|
// healErasureSet lists and heals all objects in a specific erasure set
|
|
func (er *erasureObjects) healErasureSet(ctx context.Context, buckets []BucketInfo, tracker *healingTracker) error {
|
|
bgSeq := mustGetHealSequence(ctx)
|
|
buckets = append(buckets, BucketInfo{
|
|
Name: pathJoin(minioMetaBucket, minioConfigPrefix),
|
|
})
|
|
|
|
// Try to pro-actively heal backend-encrypted file.
|
|
if _, err := er.HealObject(ctx, minioMetaBucket, backendEncryptedFile, "", madmin.HealOpts{}); err != nil {
|
|
if !isErrObjectNotFound(err) && !isErrVersionNotFound(err) {
|
|
logger.LogIf(ctx, err)
|
|
}
|
|
}
|
|
|
|
// Heal all buckets with all objects
|
|
for _, bucket := range buckets {
|
|
if tracker.isHealed(bucket.Name) {
|
|
continue
|
|
}
|
|
var forwardTo string
|
|
// If we resume to the same bucket, forward to last known item.
|
|
if tracker.Bucket != "" {
|
|
if tracker.Bucket == bucket.Name {
|
|
forwardTo = tracker.Bucket
|
|
} else {
|
|
// Reset to where last bucket ended if resuming.
|
|
tracker.resume()
|
|
}
|
|
}
|
|
tracker.Object = ""
|
|
tracker.Bucket = bucket.Name
|
|
// Heal current bucket
|
|
if _, err := er.HealBucket(ctx, bucket.Name, madmin.HealOpts{}); err != nil {
|
|
if !isErrObjectNotFound(err) && !isErrVersionNotFound(err) {
|
|
logger.LogIf(ctx, err)
|
|
}
|
|
}
|
|
|
|
if serverDebugLog {
|
|
console.Debugf(color.Green("healDisk:")+" healing bucket %s content on erasure set %d\n", bucket.Name, tracker.SetIndex+1)
|
|
}
|
|
|
|
disks, _ := er.getOnlineDisksWithHealing()
|
|
if len(disks) == 0 {
|
|
return errors.New("healErasureSet: No non-healing disks found")
|
|
}
|
|
|
|
// Limit listing to 3 drives.
|
|
if len(disks) > 3 {
|
|
disks = disks[:3]
|
|
}
|
|
|
|
healEntry := func(entry metaCacheEntry) {
|
|
if entry.isDir() {
|
|
return
|
|
}
|
|
// We might land at .metacache, .trash, .multipart
|
|
// no need to heal them skip, only when bucket
|
|
// is '.minio.sys'
|
|
if bucket.Name == minioMetaBucket {
|
|
if wildcard.Match("buckets/*/.metacache/*", entry.name) {
|
|
return
|
|
}
|
|
if wildcard.Match("tmp/.trash/*", entry.name) {
|
|
return
|
|
}
|
|
if wildcard.Match("multipart/*", entry.name) {
|
|
return
|
|
}
|
|
}
|
|
fivs, err := entry.fileInfoVersions(bucket.Name)
|
|
if err != nil {
|
|
logger.LogIf(ctx, err)
|
|
return
|
|
}
|
|
waitForLowHTTPReq(globalHealConfig.IOCount, globalHealConfig.Sleep)
|
|
for _, version := range fivs.Versions {
|
|
if _, err := er.HealObject(ctx, bucket.Name, version.Name, version.VersionID, madmin.HealOpts{
|
|
ScanMode: madmin.HealNormalScan, Remove: healDeleteDangling}); err != nil {
|
|
if !isErrObjectNotFound(err) && !isErrVersionNotFound(err) {
|
|
// If not deleted, assume they failed.
|
|
tracker.ObjectsFailed++
|
|
tracker.BytesFailed += uint64(version.Size)
|
|
logger.LogIf(ctx, err)
|
|
}
|
|
} else {
|
|
tracker.ObjectsHealed++
|
|
tracker.BytesDone += uint64(version.Size)
|
|
}
|
|
bgSeq.logHeal(madmin.HealItemObject)
|
|
}
|
|
tracker.Object = entry.name
|
|
if time.Since(tracker.LastUpdate) > time.Minute {
|
|
logger.LogIf(ctx, tracker.update(ctx))
|
|
}
|
|
}
|
|
|
|
// How to resolve partial results.
|
|
resolver := metadataResolutionParams{
|
|
dirQuorum: 1,
|
|
objQuorum: 1,
|
|
bucket: bucket.Name,
|
|
}
|
|
|
|
err := listPathRaw(ctx, listPathRawOptions{
|
|
disks: disks,
|
|
bucket: bucket.Name,
|
|
recursive: true,
|
|
forwardTo: forwardTo,
|
|
minDisks: 1,
|
|
reportNotFound: false,
|
|
agreed: healEntry,
|
|
partial: func(entries metaCacheEntries, nAgreed int, errs []error) {
|
|
entry, ok := entries.resolve(&resolver)
|
|
if ok {
|
|
healEntry(*entry)
|
|
}
|
|
},
|
|
finished: nil,
|
|
})
|
|
|
|
select {
|
|
// If context is canceled don't mark as done...
|
|
case <-ctx.Done():
|
|
return ctx.Err()
|
|
default:
|
|
logger.LogIf(ctx, err)
|
|
tracker.bucketDone(bucket.Name)
|
|
logger.LogIf(ctx, tracker.update(ctx))
|
|
}
|
|
}
|
|
tracker.Object = ""
|
|
tracker.Bucket = ""
|
|
|
|
return nil
|
|
}
|
|
|
|
// healObject heals given object path in deep to fix bitrot.
|
|
func healObject(bucket, object, versionID string, scan madmin.HealScanMode) {
|
|
// Get background heal sequence to send elements to heal
|
|
bgSeq, ok := globalBackgroundHealState.getHealSequenceByToken(bgHealingUUID)
|
|
if ok {
|
|
bgSeq.sourceCh <- healSource{
|
|
bucket: bucket,
|
|
object: object,
|
|
versionID: versionID,
|
|
opts: &madmin.HealOpts{
|
|
Remove: true, // if found dangling purge it.
|
|
ScanMode: scan,
|
|
},
|
|
}
|
|
}
|
|
}
|