func (s *peerRESTServer) GetPeerBucketMetrics(_ *grid.MSS) (*grid.Array[*MetricV2], *grid.RemoteErr) {
	res := make([]*MetricV2, 0, len(bucketPeerMetricsGroups))
	populateAndPublish(bucketPeerMetricsGroups, func(m MetricV2) bool {
		if m.VariableLabels == nil {
			m.VariableLabels = make(map[string]string, 1)
		}
		m.VariableLabels[serverName] = globalLocalNodeName

var (
	nodeCollector           *minioNodeCollector
	clusterCollector        *minioClusterCollector
	bucketCollector         *minioBucketCollector
	peerMetricsGroups       []*MetricsGroupV2
	bucketPeerMetricsGroups []*MetricsGroupV2
)

// v2MetricsMaxBuckets enforces a bucket count limit on metrics for v2 calls.
// If people hit this limit, they should move to v3, as certain calls explode with high bucket count.