Add AWS Metering service support (#15290)

store/retrylayer/retrylayer.go

@@ -7384,6 +7384,26 @@ func (s *RetryLayerUserStore) AnalyticsActiveCount(time int64, options model.Use
 
 }
 
+func (s *RetryLayerUserStore) AnalyticsActiveCountForPeriod(startTime int64, endTime int64, options model.UserCountOptions) (int64, error) {
+
+	tries := 0
+	for {
+		result, err := s.UserStore.AnalyticsActiveCountForPeriod(startTime, endTime, options)
+		if err == nil {
+			return result, nil
+		}
+		if !isRepeatableError(err) {
+			return result, err
+		}
+		tries++
+		if tries >= 3 {
+			err = errors.Wrap(err, "giving up after 3 consecutive repeatable transaction failures")
+			return result, err
+		}
+	}
+
+}
+
 func (s *RetryLayerUserStore) AnalyticsGetExternalUsers(hostDomain string) (bool, *model.AppError) {
 
 	return s.UserStore.AnalyticsGetExternalUsers(hostDomain)