GitHub user aayostem added a comment to the discussion: Airflow Statsd Exporter 
Missing Metrics

The missing metrics you're experiencing are due to 
     - Airflow's metrics configuration
     - StatsD exporter setup

The missing metrics (`airflow_ti_failures`, `airflow_operator_successes`) are 
task-level metrics that require specific configuration to be emitted to StatsD.

what you can do it to enable Task-Level Metrics in Airflow Config
Update your Helm `values.yaml` to enable comprehensive metrics collection:

```yaml
# values.yaml
config:
  metrics:
    # Enable task and operator level metrics
    statsd_on: true
    statsd_host: statsd-exporter
    statsd_port: 9125
    statsd_prefix: airflow
    # Enable detailed task metrics
    statsd_statsd_enabled: true
    # Additional metrics configuration
    statsd_custom_client_path: airflow.statsd.StatsdClient

# Ensure statsd exporter is properly configured
statsd:
  enabled: true
  service:
    port: 9125
    targetPort: 9125
  config:
    # StatsD mapping configuration
    mapping: |
      # Airflow metrics mapping
      airflow.*.*:
        name: "airflow_${1}_${2}"
        labels:
          component: "${1}"
          metric_type: "${2}"
```

GitHub link: 
https://github.com/apache/airflow/discussions/58261#discussioncomment-14967089

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