rendering: Added concurrent rendering limits

pkg/services/alerting/notifier.go

@@ -113,6 +113,7 @@ func (n *notificationService) uploadImage(context *EvalContext) (err error) {
 		Timeout: alertTimeout / 2,
 		OrgId:   context.Rule.OrgId,
 		OrgRole: m.ROLE_ADMIN,
+		IsAlert: true,
 	}
 
 	ref, err := context.GetDashboardUID()

pkg/services/alerting/result_handler.go

@@ -100,7 +100,7 @@ func (handler *DefaultResultHandler) Handle(evalContext *EvalContext) error {
 			}
 		}
 	}
-	handler.notifier.SendIfNeeded(evalContext)
 
+	handler.notifier.SendIfNeeded(evalContext)
 	return nil
 }