Chore: Fix grafana live stats reset when sending usage stats (#39558)

pkg/services/accesscontrol/ossaccesscontrol/ossaccesscontrol_test.go

@@ -71,6 +71,8 @@ func (usm *usageStatsMock) ShouldBeReported(_ string) bool {
 	return true
 }
 
+func (usm *usageStatsMock) RegisterSendReportCallback(_ usagestats.SendReportCallbackFunc) {}
+
 type evaluatingPermissionsTestCase struct {
 	desc       string
 	user       userTestCase

pkg/services/alerting/engine_test.go

@@ -67,6 +67,8 @@ func (usm *usageStatsMock) ShouldBeReported(_ string) bool {
 	return true
 }
 
+func (usm *usageStatsMock) RegisterSendReportCallback(_ usagestats.SendReportCallbackFunc) {}
+
 func TestEngineProcessJob(t *testing.T) {
 	Convey("Alerting engine job processing", t, func() {
 		bus := bus.New()

pkg/services/live/live.go

@@ -1031,7 +1031,13 @@ func (g *GrafanaLive) sampleLiveStats() {
 	}
 }
 
+func (g *GrafanaLive) resetLiveStats() {
+	g.usageStats = usageStats{}
+}
+
 func (g *GrafanaLive) registerUsageMetrics() {
+	g.usageStatsService.RegisterSendReportCallback(g.resetLiveStats)
+
 	g.usageStatsService.RegisterMetricsFunc(func() (map[string]interface{}, error) {
 		liveUsersAvg := 0
 		liveClientsAvg := 0
@@ -1051,8 +1057,6 @@ func (g *GrafanaLive) registerUsageMetrics() {
 			"stats.live_clients_avg.count": liveClientsAvg,
 		}
 
-		g.usageStats = usageStats{}
-
 		return metrics, nil
 	})
 }