return nil
}

const (
	healthCapacityRawTotalBytes    = "capacity_raw_total_bytes"
	healthCapacityRawFreeBytes     = "capacity_raw_free_bytes"
	healthCapacityUsableTotalBytes = "capacity_usable_total_bytes"
	healthCapacityUsableFreeBytes  = "capacity_usable_free_bytes"
)

var (
	healthCapacityRawTotalBytesMD = NewGaugeMD(healthCapacityRawTotalBytes,
		"Total cluster raw storage capacity in bytes")

	// Report total usable capacity
	ch <- prometheus.MustNewConstMetric(
		prometheus.NewDesc(
			prometheus.BuildFQName(minioNamespace, "capacity_usable", "total"),
			"Total usable capacity online in the cluster",
			nil, nil),
		prometheus.GaugeValue,
		float64(GetTotalUsableCapacity(server.Disks, sinfo)),
	)

	// Report total usable capacity free
	ch <- prometheus.MustNewConstMetric(

func GetTotalCapacity(diskInfo []madmin.Disk) (capacity uint64) {
	for _, disk := range diskInfo {
		capacity += disk.TotalSpace
	}
	return
}

// GetTotalUsableCapacity gets the total usable capacity in the cluster.
func GetTotalUsableCapacity(diskInfo []madmin.Disk, s StorageInfo) (capacity uint64) {
	for _, disk := range diskInfo {
		// Ignore invalid.

		clusterVersionsHistogram := map[string]uint64{}
		for _, usage := range dataUsageInfo.BucketsUsage {
			clusterBuckets++
			clusterSize += usage.Size
			clusterObjectsCount += usage.ObjectsCount
			clusterVersionsCount += usage.VersionsCount
			clusterDeleteMarkersCount += usage.DeleteMarkersCount
			for k, v := range usage.ObjectSizesHistogram {
				v1, ok := clusterObjectSizesHistogram[k]
				if !ok {

	if err != nil {
		return ESSUnknown, "", fmt.Errorf("unable to get ES Server version - json parse error: %v", err)
	}

	if v, ok := m["version"].(map[string]interface{}); ok {
		if ver, ok := v["number"].(string); ok {
			status, err := getESVersionSupportStatus(ver)
			return status, ver, err
		}
	}
	return ESSUnknown, "", fmt.Errorf("Unable to get ES Server Version - got INFO response: %v", m)
}

			Op:         replication.AddOption,
			RuleStatus: "enable",
			DestBucket: targetARN,
			// Replicate everything!
			ReplicateDeletes:        "enable",
			ReplicateDeleteMarkers:  "enable",
			ReplicaSync:             "enable",
			ExistingObjectReplicate: "enable",
		}

		switch {
		case hasRule:
			if ruleARN != opts.DestBucket {

	EnvNSQQueueLimit    = "MINIO_NOTIFY_NSQ_QUEUE_LIMIT"
)

// NSQArgs - NSQ target arguments.
type NSQArgs struct {
	Enable      bool      `json:"enable"`
	NSQDAddress xnet.Host `json:"nsqdAddress"`
	Topic       string    `json:"topic"`
	TLS         struct {
		Enable     bool `json:"enable"`
		SkipVerify bool `json:"skipVerify"`
	} `json:"tls"`
	QueueDir   string `json:"queueDir"`
	QueueLimit uint64 `json:"queueLimit"`
}

	logger.FatalIf(getMetacacheListingRPC.Register(gm, server.GetMetacacheListingHandler), "unable to register handler")
	logger.FatalIf(getMetricsRPC.Register(gm, server.GetMetricsHandler), "unable to register handler")
	logger.FatalIf(getNetInfoRPC.Register(gm, server.GetNetInfoHandler), "unable to register handler")
	logger.FatalIf(getOSInfoRPC.Register(gm, server.GetOSInfoHandler), "unable to register handler")

func (sys *HTTPConsoleLoggerSys) SetNodeName(nodeName string) {
	if !globalIsDistErasure {
		sys.nodeName = ""
		return
	}

	host, err := xnet.ParseHost(globalLocalNodeName)
	if err != nil {
		logger.FatalIf(err, "Unable to start console logging subsystem")
	}

	sys.nodeName = host.Name
}

// HasLogListeners returns true if console log listeners are registered
// for this node or peers

	}
	return false
}

// isLatestDeletemarker returns whether the latest version is a delete marker.
// If metadata is NOT versioned false will always be returned.
// If v2 and UNABLE to load metadata true will be returned.
func (e *metaCacheEntry) isLatestDeletemarker() bool {
	if e.cached != nil {
		if len(e.cached.versions) == 0 {
			return true
		}