Method initQueryable

pkg/cortex/modules.go:289–302

initQueryable instantiates the queryable and promQL engine used to service queries to Cortex. It also registers the API endpoints associated with those two services.

()

// initQueryable instantiates the queryable and promQL engine used to service queries to
// Cortex. It also registers the API endpoints associated with those two services.
func (t *Cortex) initQueryable() (serv services.Service, err error) {
	querierRegisterer := prometheus.WrapRegistererWith(prometheus.Labels{"engine": "querier"}, prometheus.DefaultRegisterer)

	// Create a querier queryable and PromQL engine
	t.QuerierQueryable, t.ExemplarQueryable, t.QuerierEngine = querier.New(t.Cfg.Querier, t.OverridesConfig, t.Distributor, t.StoreQueryables, querierRegisterer, util_log.Logger, t.OverridesConfig.QueryPartialData)

	// Use distributor as default MetadataQuerier
	t.MetadataQuerier = t.Distributor

	// Register the default endpoints that are always enabled for the querier module
	t.API.RegisterQueryable(t.QuerierQueryable, t.Distributor)

	return nil, nil
}

// Enable merge querier if multi tenant query federation is enabled
func (t *Cortex) initTenantFederation() (serv services.Service, err error) {