)

var (
	scannerBucketScansFinishedMD = NewCounterMD(scannerBucketScansFinished,
		"Total number of bucket scans finished since server start")
	scannerBucketScansStartedMD = NewCounterMD(scannerBucketScansStarted,
		"Total number of bucket scans started since server start")
	scannerDirectoriesScannedMD = NewCounterMD(scannerDirectoriesScanned,
		"Total number of directories scanned since server start")

func healObject(bucket, object, versionID string, scan madmin.HealScanMode) error {
	// Get background heal sequence to send elements to heal
	bgSeq, ok := globalBackgroundHealState.getHealSequenceByToken(bgHealingUUID)
	if ok {
		return bgSeq.healObject(bucket, object, versionID, scan)
	}
	return nil

	f, err := Open(envConfigFile)
	if err != nil {
		return nil, err
	}
	defer f.Close()
	var ekvs []envKV
	scanner := bufio.NewScanner(f)
	for scanner.Scan() {
		ekv, err := parsEnvEntry(scanner.Text())
		if err != nil {
			return nil, err
		}
		if ekv.Skip {
			// Skips empty lines
			continue
		}
		ekvs = append(ekvs, ekv)
	}

			scan := madmin.HealNormalScan
			if u.scanMode != 0 {
				scan = u.scanMode
			}
			if u.object == "" {
				healBucket(u.bucket, scan)
			} else {
				if len(u.versions) > 0 {
					vers := len(u.versions) / 16
					if vers > 0 {
						for i := 0; i < vers; i++ {
							healObject(u.bucket, u.object, uuid.UUID(u.versions[16*i:]).String(), scan)
						}
					}
				} else {

// WalkDirOptions provides options for WalkDir operations.
type WalkDirOptions struct {
	// Bucket to scanner
	Bucket string

	// Directory inside the bucket.
	BaseDir string

	// Do a full recursive scan.
	Recursive bool

	// ReportNotFound will return errFileNotFound if all disks reports the BaseDir cannot be found.
	ReportNotFound bool

	// FilterPrefix will only return results with given prefix within folder.

// reasons. Note that ZFS is effectively the default filesystem on illumos
// systems.
//
// One benefit of using DirectIO on Linux is that the page cache will not be
// polluted with single-access data. The ZFS read cache (ARC) is scan-resistant
// so there is no risk of polluting the entire cache with data accessed once.
// Another goal of DirectIO is to minimize the mutation of data by the kernel

		return config.DefaultHelpPostfix(DefaultKVS, key)
	}

	// Help provides help for config values
	Help = config.HelpKVS{
		config.HelpKV{
			Key:         Bitrot,
			Description: `perform bitrot scan on drives when checking objects during scanner` + defaultHelpPostfix(Bitrot),
			Optional:    true,
			Type:        "on|off",
		},
		config.HelpKV{
			Key:         Sleep,

	if i.debug {
		if versionID != "" {
			console.Debugf(applyActionsLogPrefix+" lifecycle: %q (version-id=%s), Initial scan: %v\n", i.objectPath(), versionID, lcEvt.Action)
		} else {
			console.Debugf(applyActionsLogPrefix+" lifecycle: %q Initial scan: %v\n", i.objectPath(), lcEvt.Action)
		}
	}

	switch lcEvt.Action {

		bf.Reset()
	}

	ret := make(map[time.Duration][]string)

	s := bufio.NewScanner(f)
	s.Split(bufio.ScanLines)

	var (
		t            time.Duration
		skip, record bool
	)

	for s.Scan() {
		line := s.Text()
		switch {
		case skip && line != "":
		case skip && line == "":
			skip = false
		case record && line == "":
			stackTrace := bf.String()
			reset()
			record = false

			// - attempt a heal to successfully heal them for future calls.
			if written == partLength {
				var scan madmin.HealScanMode
				switch {
				case errors.Is(err, errFileNotFound):
					scan = madmin.HealNormalScan
				case errors.Is(err, errFileCorrupt):
					scan = madmin.HealDeepScan
				}
				switch scan {
				case madmin.HealNormalScan, madmin.HealDeepScan:
					healOnce.Do(func() {