code: private void configureFlowLevelMetrics(final FlowRunner flowRunner) {
      logger.info("Configuring Azkaban metrics tracking for flow runner object");
  
      if (MetricReportManager.isAvailable()) {
        final MetricReportManager metricManager = MetricReportManager.getInstance();
        // Adding NumFailedFlow Metric listener
        flowRunner.addListener((NumFailedFlowMetric) metricManager
            .getMetricFromName(NumFailedFlowMetric.NUM_FAILED_FLOW_METRIC_NAME));
      }
  
    }
docs: Configure Azkaban metrics tracking for a new flowRunner instance