}

	nodeCollector = newMinioCollectorNode(nodeGroups)
	clusterCollector = newMinioClusterCollector(allMetricsGroups)
	bucketCollector = newMinioBucketCollector(bucketMetricsGroups)
}

// MetricNamespace is top level grouping of metrics to create the metric name.
type MetricNamespace string

// MetricSubsystem is the sub grouping for metrics within a namespace.
type MetricSubsystem string

const (

	ctx := r.Context()

	objectAPI, _ := validateAdminReq(ctx, w, r, policy.TopLocksAdminAction)
	if objectAPI == nil {
		return
	}

	count := 10 // by default list only top 10 entries
	if countStr := r.Form.Get("count"); countStr != "" {
		var err error
		count, err = strconv.Atoi(countStr)
		if err != nil {
			writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
			return