// in all other cases mtime is latest.

	fi.VersionID = versionID // set any new versionID we might have created
	fi.ModTime = modTime     // set modTime for the new versionID
	if !dstOpts.MTime.IsZero() {
		modTime = dstOpts.MTime
		fi.ModTime = dstOpts.MTime
	}
	// check inline before overwriting metadata.
	inlineData := fi.InlineData()

	fi.Metadata = srcInfo.UserDefined

	bgSeq, exists := globalBackgroundHealState.getHealSequenceByToken(bgHealingUUID)
	if !exists {
		return
	}

	var dur time.Duration
	if !bgSeq.lastHealActivity.IsZero() {
		dur = time.Since(bgSeq.lastHealActivity)
	}

	ch <- prometheus.MustNewConstMetric(
		prometheus.NewDesc(
			prometheus.BuildFQName(healMetricsNamespace, "time", "since_last_activity"),

	defer z.rebalMu.RUnlock()

	if r := z.rebalMeta; r != nil {
		if r.StoppedAt.IsZero() {
			return true
		}
	}
	return false
}

func (z *erasureServerPools) IsPoolRebalancing(poolIndex int) bool {
	z.rebalMu.RLock()
	defer z.rebalMu.RUnlock()

	if r := z.rebalMeta; r != nil {
		if !r.StoppedAt.IsZero() {
			return false
		}
		ps := z.rebalMeta.PoolStats[poolIndex]

		pool: sync.Pool{
			New: func() interface{} {
				var t T
				return &t
			},
		},
		emptySz: sz,
	}
}

func (p *JSONPool[T]) new() *T {
	var zero T
	t := p.pool.Get().(*T)
	*t = zero
	return t
}

// JSON is a wrapper around a T object that can be serialized.
// There is an internal value
type JSON[T any] struct {
	p   *JSONPool[T]
	val *T
}

	if err != nil {
		t.Fatal(err)
	}
	t.Log("serialized size:", buf.Len(), "bytes")
	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 startTime > 0 {
			metrics = append(metrics,
				MetricV2{
					Description: getMinIOProcessStartTimeMD(),
					Value:       startTime,
				})
		}

		if !globalBootTime.IsZero() {
			metrics = append(metrics,
				MetricV2{
					Description: getMinIOProcessUptimeMD(),
					Value:       time.Since(globalBootTime).Seconds(),
				})
		}

		if stat.ResidentMemory() > 0 {

						return
					}
					asyncErrMu.Lock()
					if asyncErr == nil {
						asyncErr = err
					}
					asyncErrMu.Unlock()
				}
			}(name, header.FileInfo(), b)
			continue
		}

		// If zero or earlier modtime, set to current.
		// Otherwise the resulting objects will be invalid.
		if header.ModTime.UnixNano() <= 0 {
			header.ModTime = time.Now()
		}

		// Sync upload.

					sys.hMutex.RLock()
					prev, ok := sys.hc[result.Endpoint.Host]
					sys.hMutex.RUnlock()
					if ok {
						if prev.Online != result.Online || !result.Online {
							if !prev.lastHCAt.IsZero() {
								offline = time.Since(prev.lastHCAt) + prev.offlineDuration
							} else {
								offline = prev.offlineDuration
							}
						} else if result.Online {
							offline = prev.offlineDuration

		update := func() {
			mu.Lock()
			defer mu.Unlock()

			allMerged = dataUsageCache{Info: dataUsageCacheInfo{Name: dataUsageRoot}}
			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) {

		lastTaggingTimestamp := srcInfo.UserDefined[ReservedMetadataPrefixLower+TaggingTimestamp]
		if dstOpts.ReplicationRequest {
			srcTimestamp := dstOpts.ReplicationSourceTaggingTimestamp
			if !srcTimestamp.IsZero() {
				ondiskTimestamp, err := time.Parse(time.RFC3339Nano, lastTaggingTimestamp)
				// update tagging metadata only if replica  timestamp is newer than what's on disk