}
		case "st":
			z.StartTime, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "StartTime")
				return
			}
		case "lu":
			z.LastUpdate, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "LastUpdate")
				return
			}
		case "ra":
			z.RetryAttempts, err = dc.ReadInt()
			if err != nil {
				err = msgp.WrapError(err, "RetryAttempts")
				return
			}

	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,
		Decommission: ps.Decommission.Clone(),
	}
}

	var got dataUsageCache
	err = got.deserialize(&buf)
	if err != nil {
		t.Fatal(err)
	}
	if got.Info.LastUpdate.IsZero() {
		t.Error("lastupdate not set")
	}

	if !want.Info.LastUpdate.Equal(got.Info.LastUpdate) {
		t.Fatalf("deserialize LastUpdate mismatch\nwant: %+v\ngot:  %+v", want, got)
	}
	if len(want.Cache) != len(got.Cache) {

		return
	}
	if otherRoot == nil {
		return
	}
	if existingRoot == nil {
		*d = other.clone()
		return
	}
	if other.Info.LastUpdate.After(d.Info.LastUpdate) {
		d.Info.LastUpdate = other.Info.LastUpdate
	}
	existingRoot.merge(*otherRoot)
	eHash := d.rootHash()
	for key := range otherRoot.Children {
		entry := other.Cache[key]
		flat := other.flatten(entry)

			}
		case "cl":
			z.CmdLine, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "CmdLine")
				return
			}
		case "lu":
			z.LastUpdate, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "LastUpdate")
				return
			}
		case "dec":
			if dc.IsNil() {
				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "Decommission")
					return

func (f *folderScanner) sendUpdate() {
	// Send at most an update every minute.
	if f.updates == nil || time.Since(f.lastUpdate) < time.Minute {
		return
	}
	if flat := f.updateCache.sizeRecursive(f.newCache.Info.Name); flat != nil {
		select {
		case f.updates <- flat.clone():
		default:
		}
		f.lastUpdate = time.Now()
	}
}

// scanFolder will scan the provided folder.

		return
	}

	dataUsageInfo, err := loadDataUsageFromBackend(GlobalContext, objLayer)
	if err != nil {
		return
	}
	// data usage has not captured any data yet.
	if dataUsageInfo.LastUpdate.IsZero() {
		return
	}

	for bucket, usageInfo := range dataUsageInfo.BucketsUsage {
		stat := globalReplicationStats.getLatestReplicationStats(bucket)
		// Total space used by bucket

			continue
		}
		rinfo.Targets = append(rinfo.Targets, ResyncTarget{
			Arn:             tarn,
			ResetID:         st.ResyncID,
			StartTime:       st.StartTime,
			EndTime:         st.LastUpdate,
			ResyncStatus:    st.ResyncStatus.String(),
			ReplicatedSize:  st.ReplicatedSize,
			ReplicatedCount: st.ReplicatedCount,
			FailedSize:      st.FailedSize,
			FailedCount:     st.FailedCount,

		id:          o.ID,
		bucket:      o.Bucket,
		root:        o.BaseDir,
		recursive:   o.Recursive,
		status:      scanStateStarted,
		error:       "",
		started:     UTCNow(),
		lastHandout: UTCNow(),
		lastUpdate:  UTCNow(),
		ended:       time.Time{},
		dataVersion: metacacheStreamVersion,
		filter:      o.FilterPrefix,
	}
}

func (o *listPathOptions) debugf(format string, data ...interface{}) {