wait() // wait to proceed to next entry.
					continue
				}

				sys.Lock()
				// Update if the bucket metadata in the memory is older than on-disk one
				if lu := sys.metadataMap[bucket].lastUpdate(); lu.Before(meta.lastUpdate()) {
					updated = true
					sys.metadataMap[bucket] = meta
				}
				sys.Unlock()

				if updated {
					globalEventNotifier.set(bucket, meta)
					globalBucketTargetSys.set(bucket, meta)

		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 "NextCycle":
			z.NextCycle, err = dc.ReadUint32()
			if err != nil {
				err = msgp.WrapError(err, "NextCycle")
				return
			}
		case "LastUpdate":
			z.LastUpdate, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "LastUpdate")
				return
			}
		case "SkipHealing":
			z.SkipHealing, err = dc.ReadBool()
			if err != nil {
				err = msgp.WrapError(err, "SkipHealing")

	LifecycleConfigUpdatedAt         time.Time
	NotificationConfigUpdatedAt      time.Time
	BucketTargetsConfigUpdatedAt     time.Time
	BucketTargetsConfigMetaUpdatedAt time.Time
	// Add a new UpdatedAt field and update lastUpdate function

	// Unexported fields. Must be updated atomically.
	policyConfig           *policy.BucketPolicy
	notificationConfig     *event.Config
	lifecycleConfig        *lifecycle.Lifecycle

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.

			for _, info := range results {
				if info.Info.LastUpdate.IsZero() {
					// Not filled yet.
					return
				}
				allMerged.merge(info)
			}
			if allMerged.root() != nil && allMerged.Info.LastUpdate.After(lastUpdate) {
				updates <- allMerged.dui(allMerged.Info.Name, allBuckets)
				lastUpdate = allMerged.Info.LastUpdate
			}
		}
		for {
			select {
			case <-ctx.Done():

		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.Load().getLatestReplicationStats(bucket)
		// Total space used by bucket

				for _, st := range brs.TargetsMap {
					if st.LastUpdate.Equal(timeSentinel) {
						updt = true
						break
					}
				}
				// Save the replication status if a new stats update is found and not saved in the backend yet
				if brs.LastUpdate.After(lastResyncStatusSave[bucket]) {
					updt = true
				}
				if updt {

			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,

			return metrics
		}

		// data usage has not captured any data yet.
		if dataUsageInfo.LastUpdate.IsZero() {
			return metrics
		}

		metrics = append(metrics, MetricV2{
			Description: getUsageLastScanActivityMD(),
			Value:       float64(time.Since(dataUsageInfo.LastUpdate)),
		})

		var (
			clusterSize               uint64
			clusterBuckets            uint64