import "context"

const (
	healthDrivesOfflineCount = "drives_offline_count"
	healthDrivesOnlineCount  = "drives_online_count"
	healthDrivesCount        = "drives_count"
)

var (
	healthDrivesOfflineCountMD = NewGaugeMD(healthDrivesOfflineCount,
		"Count of offline drives in the cluster")
	healthDrivesOnlineCountMD = NewGaugeMD(healthDrivesOnlineCount,
		"Count of online drives in the cluster")

online.help.name.relatedquery=relatedquery
online.help.name.relatedcontent=relatedcontent
online.help.name.wizard=wizard
online.help.name.badword=badword
online.help.name.pathmap=pathmap
online.help.name.boostdoc=boostdoc
online.help.name.dataconfig=dataconfig
online.help.name.systeminfo=systeminfo
online.help.name.user=user
online.help.name.group=group
online.help.name.design=design
online.help.name.dashboard=dashboard

    String ONLINE_HELP_NAME_WEBCONFIG = "online.help.name.webconfig";

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

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

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

  descriptor's requiredConnectivity field.

  * If <<<(offline == true) && (requiresOnline != true)>>>, bind
    the mojo to the lifecycle.

    In this case, the client is <<offline>>, and the mojo does not require
    online status.

  * If <<<(offline == false) && (requiresOnline == true)>>>, bind
    the mojo to the lifecycle.

    In this case, the client is <<online>>, and the mojo either requires

	}

	if clnt.HealthCheckFn != nil {
		// 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))

					var lastOnline time.Time
					var offline time.Duration
					//	var deploymentID string
					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 {

	m.Set(driveTotalInodes, float64(drive.UsedInodes+drive.FreeInodes), labels...)

	var healing, online float64
	if drive.Healing {
		healing = 1
	}
	m.Set(driveHealing, healing, labels...)

	if drive.State == "ok" {
		online = 1
	}
	m.Set(driveOnline, online, labels...)
}

func (m *MetricValues) setDriveAPIMetrics(disk madmin.Disk, labels []string) {
	if disk.Metrics == nil {

		}
		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
}

| `minio_cluster_replication_link_online`                    | Reports whether the replication link is online (1) or offline (0).                                       |
| `minio_cluster_replication_link_offline_duration_seconds`  | Total duration of replication link being offline in seconds since last offline event                     |

		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"),
			"Total number of MinIO nodes offline",
			nil, nil),
		prometheus.GaugeValue,
		float64(nodesDown),
	)