Merge pull request #15300 from bergquist/token_usage_stats

adds usage stats for sessions

pkg/infra/usagestats/service.go

@@ -0,0 +1,54 @@
+package usagestats
+
+import (
+	"context"
+	"time"
+
+	"github.com/grafana/grafana/pkg/bus"
+	"github.com/grafana/grafana/pkg/services/sqlstore"
+	"github.com/grafana/grafana/pkg/social"
+
+	"github.com/grafana/grafana/pkg/log"
+	"github.com/grafana/grafana/pkg/registry"
+	"github.com/grafana/grafana/pkg/setting"
+)
+
+var metricsLogger log.Logger = log.New("metrics")
+
+func init() {
+	registry.RegisterService(&UsageStatsService{})
+}
+
+type UsageStatsService struct {
+	Cfg      *setting.Cfg       `inject:""`
+	Bus      bus.Bus            `inject:""`
+	SQLStore *sqlstore.SqlStore `inject:""`
+
+	oauthProviders map[string]bool
+}
+
+func (uss *UsageStatsService) Init() error {
+
+	uss.oauthProviders = social.GetOAuthProviders(uss.Cfg)
+	return nil
+}
+
+func (uss *UsageStatsService) Run(ctx context.Context) error {
+	uss.updateTotalStats()
+
+	onceEveryDayTick := time.NewTicker(time.Hour * 24)
+	everyMinuteTicker := time.NewTicker(time.Minute)
+	defer onceEveryDayTick.Stop()
+	defer everyMinuteTicker.Stop()
+
+	for {
+		select {
+		case <-onceEveryDayTick.C:
+			uss.sendUsageStats(uss.oauthProviders)
+		case <-everyMinuteTicker.C:
+			uss.updateTotalStats()
+		case <-ctx.Done():
+			return ctx.Err()
+		}
+	}
+}

pkg/infra/usagestats/usage_stats.go

@@ -0,0 +1,177 @@
+package usagestats
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"runtime"
+	"strings"
+	"time"
+
+	"github.com/grafana/grafana/pkg/metrics"
+	"github.com/grafana/grafana/pkg/models"
+	"github.com/grafana/grafana/pkg/plugins"
+	"github.com/grafana/grafana/pkg/setting"
+)
+
+var usageStatsURL = "https://stats.grafana.org/grafana-usage-report"
+
+func (uss *UsageStatsService) sendUsageStats(oauthProviders map[string]bool) {
+	if !setting.ReportingEnabled {
+		return
+	}
+
+	metricsLogger.Debug(fmt.Sprintf("Sending anonymous usage stats to %s", usageStatsURL))
+
+	version := strings.Replace(setting.BuildVersion, ".", "_", -1)
+
+	metrics := map[string]interface{}{}
+	report := map[string]interface{}{
+		"version":   version,
+		"metrics":   metrics,
+		"os":        runtime.GOOS,
+		"arch":      runtime.GOARCH,
+		"edition":   getEdition(),
+		"packaging": setting.Packaging,
+	}
+
+	statsQuery := models.GetSystemStatsQuery{}
+	if err := uss.Bus.Dispatch(&statsQuery); err != nil {
+		metricsLogger.Error("Failed to get system stats", "error", err)
+		return
+	}
+
+	metrics["stats.dashboards.count"] = statsQuery.Result.Dashboards
+	metrics["stats.users.count"] = statsQuery.Result.Users
+	metrics["stats.orgs.count"] = statsQuery.Result.Orgs
+	metrics["stats.playlist.count"] = statsQuery.Result.Playlists
+	metrics["stats.plugins.apps.count"] = len(plugins.Apps)
+	metrics["stats.plugins.panels.count"] = len(plugins.Panels)
+	metrics["stats.plugins.datasources.count"] = len(plugins.DataSources)
+	metrics["stats.alerts.count"] = statsQuery.Result.Alerts
+	metrics["stats.active_users.count"] = statsQuery.Result.ActiveUsers
+	metrics["stats.datasources.count"] = statsQuery.Result.Datasources
+	metrics["stats.stars.count"] = statsQuery.Result.Stars
+	metrics["stats.folders.count"] = statsQuery.Result.Folders
+	metrics["stats.dashboard_permissions.count"] = statsQuery.Result.DashboardPermissions
+	metrics["stats.folder_permissions.count"] = statsQuery.Result.FolderPermissions
+	metrics["stats.provisioned_dashboards.count"] = statsQuery.Result.ProvisionedDashboards
+	metrics["stats.snapshots.count"] = statsQuery.Result.Snapshots
+	metrics["stats.teams.count"] = statsQuery.Result.Teams
+	metrics["stats.total_sessions.count"] = statsQuery.Result.Sessions
+
+	userCount := statsQuery.Result.Users
+	avgSessionsPerUser := statsQuery.Result.Sessions
+	if userCount != 0 {
+		avgSessionsPerUser = avgSessionsPerUser / userCount
+	}
+
+	metrics["stats.avg_sessions_per_user.count"] = avgSessionsPerUser
+
+	dsStats := models.GetDataSourceStatsQuery{}
+	if err := uss.Bus.Dispatch(&dsStats); err != nil {
+		metricsLogger.Error("Failed to get datasource stats", "error", err)
+		return
+	}
+
+	// send counters for each data source
+	// but ignore any custom data sources
+	// as sending that name could be sensitive information
+	dsOtherCount := 0
+	for _, dsStat := range dsStats.Result {
+		if models.IsKnownDataSourcePlugin(dsStat.Type) {
+			metrics["stats.ds."+dsStat.Type+".count"] = dsStat.Count
+		} else {
+			dsOtherCount += dsStat.Count
+		}
+	}
+	metrics["stats.ds.other.count"] = dsOtherCount
+
+	metrics["stats.packaging."+setting.Packaging+".count"] = 1
+
+	dsAccessStats := models.GetDataSourceAccessStatsQuery{}
+	if err := uss.Bus.Dispatch(&dsAccessStats); err != nil {
+		metricsLogger.Error("Failed to get datasource access stats", "error", err)
+		return
+	}
+
+	// send access counters for each data source
+	// but ignore any custom data sources
+	// as sending that name could be sensitive information
+	dsAccessOtherCount := make(map[string]int64)
+	for _, dsAccessStat := range dsAccessStats.Result {
+		if dsAccessStat.Access == "" {
+			continue
+		}
+
+		access := strings.ToLower(dsAccessStat.Access)
+
+		if models.IsKnownDataSourcePlugin(dsAccessStat.Type) {
+			metrics["stats.ds_access."+dsAccessStat.Type+"."+access+".count"] = dsAccessStat.Count
+		} else {
+			old := dsAccessOtherCount[access]
+			dsAccessOtherCount[access] = old + dsAccessStat.Count
+		}
+	}
+
+	for access, count := range dsAccessOtherCount {
+		metrics["stats.ds_access.other."+access+".count"] = count
+	}
+
+	anStats := models.GetAlertNotifierUsageStatsQuery{}
+	if err := uss.Bus.Dispatch(&anStats); err != nil {
+		metricsLogger.Error("Failed to get alert notification stats", "error", err)
+		return
+	}
+
+	for _, stats := range anStats.Result {
+		metrics["stats.alert_notifiers."+stats.Type+".count"] = stats.Count
+	}
+
+	authTypes := map[string]bool{}
+	authTypes["anonymous"] = setting.AnonymousEnabled
+	authTypes["basic_auth"] = setting.BasicAuthEnabled
+	authTypes["ldap"] = setting.LdapEnabled
+	authTypes["auth_proxy"] = setting.AuthProxyEnabled
+
+	for provider, enabled := range oauthProviders {
+		authTypes["oauth_"+provider] = enabled
+	}
+
+	for authType, enabled := range authTypes {
+		enabledValue := 0
+		if enabled {
+			enabledValue = 1
+		}
+		metrics["stats.auth_enabled."+authType+".count"] = enabledValue
+	}
+
+	out, _ := json.MarshalIndent(report, "", " ")
+	data := bytes.NewBuffer(out)
+
+	client := http.Client{Timeout: 5 * time.Second}
+	go client.Post(usageStatsURL, "application/json", data)
+}
+
+func (uss *UsageStatsService) updateTotalStats() {
+	statsQuery := models.GetSystemStatsQuery{}
+	if err := uss.Bus.Dispatch(&statsQuery); err != nil {
+		metricsLogger.Error("Failed to get system stats", "error", err)
+		return
+	}
+
+	metrics.M_StatTotal_Dashboards.Set(float64(statsQuery.Result.Dashboards))
+	metrics.M_StatTotal_Users.Set(float64(statsQuery.Result.Users))
+	metrics.M_StatActive_Users.Set(float64(statsQuery.Result.ActiveUsers))
+	metrics.M_StatTotal_Playlists.Set(float64(statsQuery.Result.Playlists))
+	metrics.M_StatTotal_Orgs.Set(float64(statsQuery.Result.Orgs))
+}
+
+func getEdition() string {
+	if setting.IsEnterprise {
+		return "enterprise"
+	} else {
+		return "oss"
+	}
+}

pkg/infra/usagestats/usage_stats_test.go

@@ -1,4 +1,4 @@
-package metrics
+package usagestats
 
 import (
 	"bytes"
@@ -15,14 +15,21 @@ import (
 	"github.com/grafana/grafana/pkg/components/simplejson"
 	"github.com/grafana/grafana/pkg/models"
 	"github.com/grafana/grafana/pkg/plugins"
+	"github.com/grafana/grafana/pkg/services/sqlstore"
 	"github.com/grafana/grafana/pkg/setting"
 	. "github.com/smartystreets/goconvey/convey"
 )
 
 func TestMetrics(t *testing.T) {
 	Convey("Test send usage stats", t, func() {
+		uss := &UsageStatsService{
+			Bus:      bus.New(),
+			SQLStore: sqlstore.InitTestDB(t),
+		}
+
 		var getSystemStatsQuery *models.GetSystemStatsQuery
-		bus.AddHandler("test", func(query *models.GetSystemStatsQuery) error {
+		uss.Bus.AddHandler(func(query *models.GetSystemStatsQuery) error {
+
 			query.Result = &models.SystemStats{
 				Dashboards:            1,
 				Datasources:           2,
@@ -38,13 +45,14 @@ func TestMetrics(t *testing.T) {
 				ProvisionedDashboards: 12,
 				Snapshots:             13,
 				Teams:                 14,
+				Sessions:              15,
 			}
 			getSystemStatsQuery = query
 			return nil
 		})
 
 		var getDataSourceStatsQuery *models.GetDataSourceStatsQuery
-		bus.AddHandler("test", func(query *models.GetDataSourceStatsQuery) error {
+		uss.Bus.AddHandler(func(query *models.GetDataSourceStatsQuery) error {
 			query.Result = []*models.DataSourceStats{
 				{
 					Type:  models.DS_ES,
@@ -68,7 +76,7 @@ func TestMetrics(t *testing.T) {
 		})
 
 		var getDataSourceAccessStatsQuery *models.GetDataSourceAccessStatsQuery
-		bus.AddHandler("test", func(query *models.GetDataSourceAccessStatsQuery) error {
+		uss.Bus.AddHandler(func(query *models.GetDataSourceAccessStatsQuery) error {
 			query.Result = []*models.DataSourceAccessStats{
 				{
 					Type:   models.DS_ES,
@@ -116,7 +124,7 @@ func TestMetrics(t *testing.T) {
 		})
 
 		var getAlertNotifierUsageStatsQuery *models.GetAlertNotifierUsageStatsQuery
-		bus.AddHandler("test", func(query *models.GetAlertNotifierUsageStatsQuery) error {
+		uss.Bus.AddHandler(func(query *models.GetAlertNotifierUsageStatsQuery) error {
 			query.Result = []*models.NotifierUsageStats{
 				{
 					Type:  "slack",
@@ -155,11 +163,11 @@ func TestMetrics(t *testing.T) {
 			"grafana_com":   true,
 		}
 
-		sendUsageStats(oauthProviders)
+		uss.sendUsageStats(oauthProviders)
 
 		Convey("Given reporting not enabled and sending usage stats", func() {
 			setting.ReportingEnabled = false
-			sendUsageStats(oauthProviders)
+			uss.sendUsageStats(oauthProviders)
 
 			Convey("Should not gather stats or call http endpoint", func() {
 				So(getSystemStatsQuery, ShouldBeNil)
@@ -179,7 +187,7 @@ func TestMetrics(t *testing.T) {
 			setting.Packaging = "deb"
 
 			wg.Add(1)
-			sendUsageStats(oauthProviders)
+			uss.sendUsageStats(oauthProviders)
 
 			Convey("Should gather stats and call http endpoint", func() {
 				if waitTimeout(&wg, 2*time.Second) {
@@ -221,6 +229,8 @@ func TestMetrics(t *testing.T) {
 				So(metrics.Get("stats.provisioned_dashboards.count").MustInt(), ShouldEqual, getSystemStatsQuery.Result.ProvisionedDashboards)
 				So(metrics.Get("stats.snapshots.count").MustInt(), ShouldEqual, getSystemStatsQuery.Result.Snapshots)
 				So(metrics.Get("stats.teams.count").MustInt(), ShouldEqual, getSystemStatsQuery.Result.Teams)
+				So(metrics.Get("stats.total_sessions.count").MustInt64(), ShouldEqual, 15)
+				So(metrics.Get("stats.avg_sessions_per_user.count").MustInt64(), ShouldEqual, 5)
 
 				So(metrics.Get("stats.ds."+models.DS_ES+".count").MustInt(), ShouldEqual, 9)
 				So(metrics.Get("stats.ds."+models.DS_PROMETHEUS+".count").MustInt(), ShouldEqual, 10)
@@ -246,6 +256,7 @@ func TestMetrics(t *testing.T) {
 				So(metrics.Get("stats.auth_enabled.oauth_grafana_com.count").MustInt(), ShouldEqual, 1)
 
 				So(metrics.Get("stats.packaging.deb.count").MustInt(), ShouldEqual, 1)
+
 			})
 		})
 

pkg/metrics/metrics.go

@@ -1,17 +1,8 @@
 package metrics
 
 import (
-	"bytes"
-	"encoding/json"
-	"net/http"
 	"runtime"
-	"strings"
-	"time"
 
-	"github.com/grafana/grafana/pkg/bus"
-	"github.com/grafana/grafana/pkg/models"
-	"github.com/grafana/grafana/pkg/plugins"
-	"github.com/grafana/grafana/pkg/setting"
 	"github.com/prometheus/client_golang/prometheus"
 )
 
@@ -68,23 +59,6 @@ var (
 	grafanaBuildVersion *prometheus.GaugeVec
 )
 
-func newCounterVecStartingAtZero(opts prometheus.CounterOpts, labels []string, labelValues ...string) *prometheus.CounterVec {
-	counter := prometheus.NewCounterVec(opts, labels)
-
-	for _, label := range labelValues {
-		counter.WithLabelValues(label).Add(0)
-	}
-
-	return counter
-}
-
-func newCounterStartingAtZero(opts prometheus.CounterOpts, labelValues ...string) prometheus.Counter {
-	counter := prometheus.NewCounter(opts)
-	counter.Add(0)
-
-	return counter
-}
-
 func init() {
 	M_Instance_Start = prometheus.NewCounter(prometheus.CounterOpts{
 		Name:      "instance_start_total",
@@ -362,154 +336,19 @@ func initMetricVars() {
 
 }
 
-func updateTotalStats() {
+func newCounterVecStartingAtZero(opts prometheus.CounterOpts, labels []string, labelValues ...string) *prometheus.CounterVec {
-	statsQuery := models.GetSystemStatsQuery{}
+	counter := prometheus.NewCounterVec(opts, labels)
-	if err := bus.Dispatch(&statsQuery); err != nil {
+
-		metricsLogger.Error("Failed to get system stats", "error", err)
+	for _, label := range labelValues {
-		return
+		counter.WithLabelValues(label).Add(0)
 	}
 
-	M_StatTotal_Dashboards.Set(float64(statsQuery.Result.Dashboards))
+	return counter
-	M_StatTotal_Users.Set(float64(statsQuery.Result.Users))
-	M_StatActive_Users.Set(float64(statsQuery.Result.ActiveUsers))
-	M_StatTotal_Playlists.Set(float64(statsQuery.Result.Playlists))
-	M_StatTotal_Orgs.Set(float64(statsQuery.Result.Orgs))
 }
 
-var usageStatsURL = "https://stats.grafana.org/grafana-usage-report"
+func newCounterStartingAtZero(opts prometheus.CounterOpts, labelValues ...string) prometheus.Counter {
+	counter := prometheus.NewCounter(opts)
+	counter.Add(0)
 
-func getEdition() string {
+	return counter
-	if setting.IsEnterprise {
-		return "enterprise"
-	} else {
-		return "oss"
-	}
-}
-
-func sendUsageStats(oauthProviders map[string]bool) {
-	if !setting.ReportingEnabled {
-		return
-	}
-
-	metricsLogger.Debug("Sending anonymous usage stats to stats.grafana.org")
-
-	version := strings.Replace(setting.BuildVersion, ".", "_", -1)
-
-	metrics := map[string]interface{}{}
-	report := map[string]interface{}{
-		"version":   version,
-		"metrics":   metrics,
-		"os":        runtime.GOOS,
-		"arch":      runtime.GOARCH,
-		"edition":   getEdition(),
-		"packaging": setting.Packaging,
-	}
-
-	statsQuery := models.GetSystemStatsQuery{}
-	if err := bus.Dispatch(&statsQuery); err != nil {
-		metricsLogger.Error("Failed to get system stats", "error", err)
-		return
-	}
-
-	metrics["stats.dashboards.count"] = statsQuery.Result.Dashboards
-	metrics["stats.users.count"] = statsQuery.Result.Users
-	metrics["stats.orgs.count"] = statsQuery.Result.Orgs
-	metrics["stats.playlist.count"] = statsQuery.Result.Playlists
-	metrics["stats.plugins.apps.count"] = len(plugins.Apps)
-	metrics["stats.plugins.panels.count"] = len(plugins.Panels)
-	metrics["stats.plugins.datasources.count"] = len(plugins.DataSources)
-	metrics["stats.alerts.count"] = statsQuery.Result.Alerts
-	metrics["stats.active_users.count"] = statsQuery.Result.ActiveUsers
-	metrics["stats.datasources.count"] = statsQuery.Result.Datasources
-	metrics["stats.stars.count"] = statsQuery.Result.Stars
-	metrics["stats.folders.count"] = statsQuery.Result.Folders
-	metrics["stats.dashboard_permissions.count"] = statsQuery.Result.DashboardPermissions
-	metrics["stats.folder_permissions.count"] = statsQuery.Result.FolderPermissions
-	metrics["stats.provisioned_dashboards.count"] = statsQuery.Result.ProvisionedDashboards
-	metrics["stats.snapshots.count"] = statsQuery.Result.Snapshots
-	metrics["stats.teams.count"] = statsQuery.Result.Teams
-
-	dsStats := models.GetDataSourceStatsQuery{}
-	if err := bus.Dispatch(&dsStats); err != nil {
-		metricsLogger.Error("Failed to get datasource stats", "error", err)
-		return
-	}
-
-	// send counters for each data source
-	// but ignore any custom data sources
-	// as sending that name could be sensitive information
-	dsOtherCount := 0
-	for _, dsStat := range dsStats.Result {
-		if models.IsKnownDataSourcePlugin(dsStat.Type) {
-			metrics["stats.ds."+dsStat.Type+".count"] = dsStat.Count
-		} else {
-			dsOtherCount += dsStat.Count
-		}
-	}
-	metrics["stats.ds.other.count"] = dsOtherCount
-
-	metrics["stats.packaging."+setting.Packaging+".count"] = 1
-
-	dsAccessStats := models.GetDataSourceAccessStatsQuery{}
-	if err := bus.Dispatch(&dsAccessStats); err != nil {
-		metricsLogger.Error("Failed to get datasource access stats", "error", err)
-		return
-	}
-
-	// send access counters for each data source
-	// but ignore any custom data sources
-	// as sending that name could be sensitive information
-	dsAccessOtherCount := make(map[string]int64)
-	for _, dsAccessStat := range dsAccessStats.Result {
-		if dsAccessStat.Access == "" {
-			continue
-		}
-
-		access := strings.ToLower(dsAccessStat.Access)
-
-		if models.IsKnownDataSourcePlugin(dsAccessStat.Type) {
-			metrics["stats.ds_access."+dsAccessStat.Type+"."+access+".count"] = dsAccessStat.Count
-		} else {
-			old := dsAccessOtherCount[access]
-			dsAccessOtherCount[access] = old + dsAccessStat.Count
-		}
-	}
-
-	for access, count := range dsAccessOtherCount {
-		metrics["stats.ds_access.other."+access+".count"] = count
-	}
-
-	anStats := models.GetAlertNotifierUsageStatsQuery{}
-	if err := bus.Dispatch(&anStats); err != nil {
-		metricsLogger.Error("Failed to get alert notification stats", "error", err)
-		return
-	}
-
-	for _, stats := range anStats.Result {
-		metrics["stats.alert_notifiers."+stats.Type+".count"] = stats.Count
-	}
-
-	authTypes := map[string]bool{}
-	authTypes["anonymous"] = setting.AnonymousEnabled
-	authTypes["basic_auth"] = setting.BasicAuthEnabled
-	authTypes["ldap"] = setting.LdapEnabled
-	authTypes["auth_proxy"] = setting.AuthProxyEnabled
-
-	for provider, enabled := range oauthProviders {
-		authTypes["oauth_"+provider] = enabled
-	}
-
-	for authType, enabled := range authTypes {
-		enabledValue := 0
-		if enabled {
-			enabledValue = 1
-		}
-		metrics["stats.auth_enabled."+authType+".count"] = enabledValue
-	}
-
-	out, _ := json.MarshalIndent(report, "", " ")
-	data := bytes.NewBuffer(out)
-
-	client := http.Client{Timeout: 5 * time.Second}
-	go client.Post(usageStatsURL, "application/json", data)
 }

pkg/metrics/service.go

@@ -2,7 +2,6 @@ package metrics
 
 import (
 	"context"
-	"time"
 
 	"github.com/grafana/grafana/pkg/log"
 	"github.com/grafana/grafana/pkg/metrics/graphitebridge"
@@ -30,7 +29,6 @@ type InternalMetricsService struct {
 
 	intervalSeconds int64
 	graphiteCfg     *graphitebridge.Config
-	oauthProviders  map[string]bool
 }
 
 func (im *InternalMetricsService) Init() error {
@@ -50,22 +48,6 @@ func (im *InternalMetricsService) Run(ctx context.Context) error {
 
 	M_Instance_Start.Inc()
 
-	// set the total stats gauges before we publishing metrics
+	<-ctx.Done()
-	updateTotalStats()
+	return ctx.Err()
-
-	onceEveryDayTick := time.NewTicker(time.Hour * 24)
-	everyMinuteTicker := time.NewTicker(time.Minute)
-	defer onceEveryDayTick.Stop()
-	defer everyMinuteTicker.Stop()
-
-	for {
-		select {
-		case <-onceEveryDayTick.C:
-			sendUsageStats(im.oauthProviders)
-		case <-everyMinuteTicker.C:
-			updateTotalStats()
-		case <-ctx.Done():
-			return ctx.Err()
-		}
-	}
 }

pkg/metrics/settings.go

@@ -5,8 +5,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/grafana/grafana/pkg/social"
-
 	"github.com/grafana/grafana/pkg/metrics/graphitebridge"
 	"github.com/grafana/grafana/pkg/setting"
 	"github.com/prometheus/client_golang/prometheus"
@@ -24,8 +22,6 @@ func (im *InternalMetricsService) readSettings() error {
 		return fmt.Errorf("Unable to parse metrics graphite section, %v", err)
 	}
 
-	im.oauthProviders = social.GetOAuthProviders(im.Cfg)
-
 	return nil
 }
 

pkg/models/stats.go

@@ -15,6 +15,7 @@ type SystemStats struct {
 	FolderPermissions     int64
 	Folders               int64
 	ProvisionedDashboards int64
+	Sessions              int64
 }
 
 type DataSourceStats struct {

pkg/services/sqlstore/stats.go

@@ -74,7 +74,8 @@ func GetSystemStats(query *m.GetSystemStatsQuery) error {
 
 	sb.Write(`(SELECT COUNT(id) FROM ` + dialect.Quote("dashboard_provisioning") + `) AS provisioned_dashboards,`)
 	sb.Write(`(SELECT COUNT(id) FROM ` + dialect.Quote("dashboard_snapshot") + `) AS snapshots,`)
-	sb.Write(`(SELECT COUNT(id) FROM ` + dialect.Quote("team") + `) AS teams`)
+	sb.Write(`(SELECT COUNT(id) FROM ` + dialect.Quote("team") + `) AS teams,`)
+	sb.Write(`(SELECT COUNT(id) FROM ` + dialect.Quote("user_auth_token") + `) AS sessions`)
 
 	var stats m.SystemStats
 	_, err := x.SQL(sb.GetSqlString(), sb.params...).Get(&stats)