Method LabelNames

pkg/distributor/distributor.go:1494–1508

LabelNames returns all the label names.

(ctx context.Context, from, to model.Time, hint *storage.LabelHints, partialDataEnabled bool, matchers ...*labels.Matcher)

// LabelNames returns all the label names.
func (d *Distributor) LabelNames(ctx context.Context, from, to model.Time, hint *storage.LabelHints, partialDataEnabled bool, matchers ...*labels.Matcher) ([]string, error) {
	return d.LabelNamesCommon(ctx, from, to, hint, func(ctx context.Context, rs ring.ReplicationSet, req *ingester_client.LabelNamesRequest, queryLimiter *limiter.QueryLimiter) ([]any, error) {
		return d.ForReplicationSet(ctx, rs, d.cfg.ZoneResultsQuorumMetadata, partialDataEnabled, func(ctx context.Context, client ingester_client.IngesterClient) (any, error) {
			resp, err := client.LabelNames(ctx, req)
			if err != nil {
				return nil, err
			}
			if err := queryLimiter.AddDataBytes(resp.Size()); err != nil {
				return nil, validation.LimitError(err.Error())
			}

			return resp.LabelNames, nil
		})
	}, matchers...)
}

// MetricsForLabelMatchers gets the metrics that match said matchers
func (d *Distributor) MetricsForLabelMatchers(ctx context.Context, from, through model.Time, hint *storage.SelectHints, partialDataEnabled bool, matchers ...*labels.Matcher) ([]labels.Labels, error) {