This example demonstrates Feast's native OpenLineage integration for automatic data lineage tracking.

For full documentation, see the OpenLineage Reference.

pip install feast[openlineage]

1. Start Marquez:

docker run -p 5000:5000 -p 3000:3000 marquezproject/marquez

2. Run the demo:

python openlineage_demo.py --url http://localhost:5000

3. View lineage at http://localhost:3000

The demo creates a sample feature repository and demonstrates:

• Entity: driver_id
• DataSource: driver_stats_source (Parquet file)
• FeatureView: driver_hourly_stats with features like conversion rate, acceptance rate
• FeatureService: driver_stats_service aggregating features

When you run the demo, it will:

1. Create the feature store with OpenLineage enabled
2. Apply the features (emits lineage events)
3. Materialize features (emits START/COMPLETE events)
4. Retrieve features (demonstrates online feature retrieval)

After running the demo, you'll see this lineage in Marquez:

driver_stats_source ──┐
                      ├──→ feast_feature_views_openlineage_demo ──→ driver_hourly_stats
driver_id ────────────┘                                                    │
                                                                           ▼
                                            feature_service_driver_stats_service ──→ driver_stats_service

• Feast OpenLineage Reference
• OpenLineage Documentation
• Marquez Project