RHINENG-21447: create metrics to track usage of *_account_data

Author: MichaelMraka

manager/controllers/advisories.go

@@ -92,8 +92,10 @@ func advisoriesCommon(c *gin.Context) (*gorm.DB, *ListMeta, []string, error) {
 	}
 
 	if config.DisableCachedCounts || HasInventoryFilter(filters) || len(groups) != 0 {
+		middlewares.AdvisoryAccountDataHitsCnt.WithLabelValues("hit").Inc()
 		query = buildQueryAdvisoriesTagged(db, filters, account, groups)
 	} else {
+		middlewares.AdvisoryAccountDataHitsCnt.WithLabelValues("miss").Inc()
 		query = buildQueryAdvisories(db, account)
 	}
 

manager/controllers/packages.go

@@ -57,12 +57,14 @@ var queryItemSelect = database.MustGetSelect(&queryItem{})
 func packagesQuery(db *gorm.DB, filters map[string]FilterData, acc int, groups map[string]string,
 	useCache bool) *gorm.DB {
 	if useCache {
+		middlewares.PackageAccountDataHitsCnt.WithLabelValues("hit").Inc()
 		q := db.Table("package_account_data res").
 			Select(PackagesSelect).
 			Joins("JOIN package_name pn ON res.package_name_id = pn.id").
 			Where("rh_account_id = ?", acc)
 		return q
 	}
+	middlewares.PackageAccountDataHitsCnt.WithLabelValues("miss").Inc()
 	systemsWithPkgsInstalledQ := database.Systems(db, acc, groups).
 		Select("sp.id").
 		Where("sp.stale = false AND sp.packages_installed > 0")

manager/middlewares/prometheus.go

@@ -43,6 +43,20 @@ var AdvisoryDetailGauge = prometheus.NewGauge(prometheus.GaugeOpts{
 	Name:      "advisory_detail_cache_size",
 })
 
+var AdvisoryAccountDataHitsCnt = prometheus.NewCounterVec(prometheus.CounterOpts{
+	Help:      "How many requests hit/miss advisory_account_data",
+	Namespace: "patchman_engine",
+	Subsystem: "manager",
+	Name:      "advisory_account_data_hits",
+}, []string{"type"})
+
+var PackageAccountDataHitsCnt = prometheus.NewCounterVec(prometheus.CounterOpts{
+	Help:      "How many requests hit/miss package_account_data",
+	Namespace: "patchman_engine",
+	Subsystem: "manager",
+	Name:      "package_account_data_hits",
+}, []string{"type"})
+
 // Create and configure Prometheus middleware to expose metrics
 func Prometheus() *ginprometheus.Prometheus {
 	prometheus.MustRegister(serviceErrorCnt, requestDurations, callerSourceCnt,