//
// This is a `MetricsLoaderFn`.
func loadClusterUsageObjectMetrics(ctx context.Context, m MetricValues, c *metricsCache) error {
	dataUsageInfo, err := c.dataUsageInfo.Get()
	if err != nil {
		metricsLogIf(ctx, err)
		return nil
	}

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

	var (
		clusterSize               uint64

}

// loadDriveMetrics - `MetricsLoaderFn` for node drive metrics.
func loadDriveMetrics(ctx context.Context, m MetricValues, c *metricsCache) error {
	driveMetrics, err := c.driveMetrics.Get()
	if err != nil {
		metricsLogIf(ctx, err)
		return nil
	}

	for _, disk := range driveMetrics.storageInfo.Disks {
		labels := []string{
			driveL, disk.DrivePath,
			poolIndexL, strconv.Itoa(disk.PoolIndex),

	if globalSiteReplicationSys.isEnabled() {
		return nil
	}

	dataUsageInfo, err := c.dataUsageInfo.Get()
	if err != nil {
		metricsLogIf(ctx, err)
		return nil
	}

	bucketReplStats := globalReplicationStats.Load().getAllLatest(dataUsageInfo.BucketsUsage)
	for _, bucket := range buckets {
		if s, ok := bucketReplStats[bucket]; ok {

	"github.com/minio/pkg/v3/env"
	"github.com/prometheus/client_golang/prometheus"
	"github.com/prometheus/client_golang/prometheus/promhttp"
)

type promLogger struct{}

func (p promLogger) Println(v ...any) {
	metricsLogIf(GlobalContext, fmt.Errorf("metrics handler error: %v", v))
}

type metricsV3Server struct {
	registry *prometheus.Registry
	opts     promhttp.HandlerOpts
	auth     func(http.Handler) http.Handler

	logger.LogIf(ctx, "etcd", err, errKind...)
}

func etcdLogOnceIf(ctx context.Context, err error, id string, errKind ...any) {
	logger.LogOnceIf(ctx, "etcd", err, id, errKind...)
}

func metricsLogIf(ctx context.Context, err error, errKind ...any) {
	logger.LogIf(ctx, "metrics", err, errKind...)
}

func s3LogIf(ctx context.Context, err error, errKind ...any) {
	logger.LogIf(ctx, "s3", err, errKind...)
}

		// metrics pertinent to site replication - overall roll up.
		if globalSiteReplicationSys.isEnabled() {
			m, err := globalSiteReplicationSys.getSiteMetrics(GlobalContext)
			if err != nil {
				metricsLogIf(GlobalContext, err)
				return ml
			}
			ml = append(ml, MetricV2{
				Description: getRepReceivedBytesMD(clusterMetricNamespace),
				Value:       float64(m.ReplicaSize),
			})