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
						}
					}
					lastOnline = prev.lastOnline

# Online help key for log.
online.help.name.log=log
# Online help key for general settings.
online.help.name.general=general
# Online help key for role.
online.help.name.role=role
# Online help key for job log.
online.help.name.joblog=joblog
# Online help key for keymatch.
online.help.name.keymatch=keymatch
# Online help key for related query.
online.help.name.relatedquery=relatedquery

    /** The key of the configuration. e.g. dict */
    String ONLINE_HELP_NAME_DICT = "online.help.name.dict";

    /** The key of the configuration. e.g. kuromoji */
    String ONLINE_HELP_NAME_DICT_KUROMOJI = "online.help.name.dict.kuromoji";

    /** The key of the configuration. e.g. protwords */
    String ONLINE_HELP_NAME_DICT_PROTWORDS = "online.help.name.dict.protwords";

	nodesUp, nodesDown := globalNotificationSys.GetPeerOnlineCount()
	ch <- prometheus.MustNewConstMetric(
		prometheus.NewDesc(
			prometheus.BuildFQName(minioNamespace, "nodes", "online"),
			"Total number of MinIO nodes online",
			nil, nil),
		prometheus.GaugeValue,
		float64(nodesUp),
	)
	ch <- prometheus.MustNewConstMetric(
		prometheus.NewDesc(
			prometheus.BuildFQName(minioNamespace, "nodes", "offline"),

		// make connection pre-emptively.
		go clnt.HealthCheckFn()
	}
	return clnt
}

// IsOnline returns whether the client is likely to be online.
func (c *Client) IsOnline() bool {
	return atomic.LoadInt32(&c.connected) == online
}

// LastConn returns when the disk was (re-)connected
func (c *Client) LastConn() time.Time {
	return time.Unix(0, atomic.LoadInt64(&c.lastConn))
}

		}
		epHealth, ok := epMap[v.Endpoint]
		if ok {
			metric.Endpoint = epHealth.Endpoint
			metric.TotalDowntime = epHealth.offlineDuration
			metric.LastOnline = epHealth.lastOnline
			metric.Online = epHealth.Online
			metric.Latency = madmin.LatencyStat{
				Curr: epHealth.latency.curr,
				Avg:  epHealth.latency.avg,
				Max:  epHealth.latency.peak,
			}
		}
		m[dID] = metric
	}
	return m
}

			linkOnline := MetricV2{
				Description: getClusterRepLinkOnlineMD(),
				VariableLabels: map[string]string{
					"endpoint": ep,
				},
			}
			online := Offline
			if health.Online {
				online = Online
			}
			linkOnline.Value = float64(online)
			ml = append(ml, linkOnline)
			offlineDuration := MetricV2{
				Description: getClusterRepLinkCurrOfflineDurationMD(),
				VariableLabels: map[string]string{

			}
		case "LastOnline":
			z.LastOnline, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "LastOnline")
				return
			}
		case "Online":
			z.Online, err = dc.ReadBool()
			if err != nil {
				err = msgp.WrapError(err, "Online")
				return
			}
		case "Latency":
			err = z.Latency.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "Latency")
				return
			}

					onlineDisks[index] = disks[index]
				} else {
					onlineDisks[index] = nil
				}
			}
			return onlineDisks, modTime, etag
		}
	}

	// Create a new online disks slice, which have common uuid.
	for index, t := range modTimes {
		if partsMetadata[index].IsValid() && t.Equal(modTime) {
			onlineDisks[index] = disks[index]
		} else {
			onlineDisks[index] = nil
		}

		clusterDriveMetrics: newClusterStorageInfoCache(),
		nodesUpDown:         newNodesUpDownCache(),
	}
}

type nodesOnline struct {
	Online, Offline int
}

func newNodesUpDownCache() *cachevalue.Cache[nodesOnline] {
	loadNodesUpDown := func(ctx context.Context) (v nodesOnline, err error) {
		v.Online, v.Offline = globalNotificationSys.GetPeerOnlineCount()
		return v, err
	}
	return cachevalue.NewFromFunc(1*time.Minute,