func (j *xlMetaV2Version) unmarshalV(v uint8, bts []byte) (o []byte, err error) {
	if v > xlMetaVersion {
		return bts, fmt.Errorf("unknown xlMetaVersion: %d", v)
	}

	// Clear omitempty fields:
	if j.ObjectV2 != nil && len(j.ObjectV2.PartIndices) > 0 {
		j.ObjectV2.PartIndices = j.ObjectV2.PartIndices[:0]
	}
	o, err = j.UnmarshalMsg(bts)

	// Total number of completed operations
	ReplicatedCount int64 `json:"replicatedCount"`
	// Failed captures replication errors in various time windows

	Failed madmin.TimedErrStats `json:"failed,omitempty"`

	XferStats map[RMetricName]XferStats `json:"transferSummary"`
}

// SRMetricsSummary captures summary of replication counts across buckets on site
// along with op metrics rollup.

// BucketReplicationStats represents inline replication statistics
// such as pending, failed and completed bytes in total for a bucket
type BucketReplicationStats struct {
	Stats map[string]*BucketReplicationStat `json:",omitempty"`
	// Completed size in bytes
	ReplicatedSize int64 `json:"completedReplicationSize"`
	// Total Replica size in bytes
	ReplicaSize int64 `json:"replicaSize"`

}

// PolicyDoc represents an IAM policy with some metadata.
type PolicyDoc struct {
	Version    int `json:",omitempty"`
	Policy     policy.Policy
	CreateDate time.Time `json:",omitempty"`
	UpdateDate time.Time `json:",omitempty"`
}

func newPolicyDoc(p policy.Policy) PolicyDoc {
	now := UTCNow().Round(time.Millisecond)
	return PolicyDoc{
		Version:    1,
		Policy:     p,

// Lifecycle - Configuration for bucket lifecycle.
type Lifecycle struct {
	XMLName         xml.Name   `xml:"LifecycleConfiguration"`
	Rules           []Rule     `xml:"Rule"`
	ExpiryUpdatedAt *time.Time `xml:"ExpiryUpdatedAt,omitempty"`
}

// HasTransition returns 'true' if lifecycle document has Transition enabled.
func (lc Lifecycle) HasTransition() bool {
	for _, rule := range lc.Rules {
		if rule.Transition.IsEnabled() {
			return true

	w.wg.Wait()
	return w.streamErr
}

type metacacheBlock struct {
	data  []byte
	n     int
	First string `json:"f"`
	Last  string `json:"l"`
	EOS   bool   `json:"eos,omitempty"`
}

func (b metacacheBlock) headerKV() map[string]string {
	json := jsoniter.ConfigCompatibleWithStandardLibrary
	v, err := json.Marshal(b)
	if err != nil {
		bugLogIf(context.Background(), err) // Unlikely

	Err           string                        `json:"err,omitempty"`
	WaitingDrives map[string]madmin.DiskMetrics `json:"waitingDrives,omitempty"`
}

type serviceResult struct {
	Action  madmin.ServiceAction `json:"action"`
	DryRun  bool                 `json:"dryRun"`
	Results []servicePeerResult  `json:"results,omitempty"`
}

// ServiceV2Handler - POST /minio/admin/v3/service?action={action}&type=2

	DeleteMarkers uint64            `msg:"dms"`
	ObjSizes      sizeHistogram     `msg:"szs"`
	ObjVersions   versionsHistogram `msg:"vh"`
	AllTierStats  *allTierStats     `msg:"ats,omitempty"`
	Compacted     bool              `msg:"c"`
}

// allTierStats is a collection of per-tier stats across all configured remote
// tiers.
type allTierStats struct {
	Tiers map[string]tierStats `msg:"ts"`
}

// healSequenceStatus - accumulated status of the heal sequence
type healSequenceStatus struct {
	// summary and detail for failures
	Summary       healStatusSummary `json:"Summary"`
	FailureDetail string            `json:"Detail,omitempty"`
	StartTime     time.Time         `json:"StartTime"`

	// settings for the heal sequence
	HealSettings madmin.HealOpts `json:"Settings"`

	// slice of available heal result records

	CmdLine      string                `json:"cmdline" msg:"cl"`
	LastUpdate   time.Time             `json:"lastUpdate" msg:"lu"`
	Decommission *PoolDecommissionInfo `json:"decommissionInfo,omitempty" msg:"dec"`
}

// Clone returns a copy of PoolStatus
func (ps PoolStatus) Clone() PoolStatus {
	return PoolStatus{
		ID:           ps.ID,
		CmdLine:      ps.CmdLine,
		LastUpdate:   ps.LastUpdate,