{"id":"710a078a-cf2b-4ad9-968f-514d0c9971c9","task":"Define and materialize a Feast feature view with a Redis online store for real-time serving","domain":"feast.dev","steps":["Install feast with the Redis extra and define a FeatureStore in feature_store.yaml pointing to a Redis online store and an offline source (e.g., BigQuery or Parquet)","Define an Entity (e.g., driver_id) and a FeatureView with a schema, source, and ttl in a Python feature definition file","Run feast apply to register the feature definitions and validate the schema against the offline source","Materialize features to the online store with feast materialize <start_datetime> <end_datetime> to populate Redis","Retrieve features at inference time using store.get_online_features(features=['driver_stats:trip_completed'], entity_rows=[{'driver_id': 1}]).to_dict()"],"gotchas":["feast materialize is a full refresh for the specified time window — for incremental updates use feast materialize-incremental <end_datetime> which reads from the last materialization timestamp stored in the registry","The TTL on a FeatureView defines how old a feature value can be before it is considered stale at retrieval time, not how long Redis retains the key — Redis TTL must be configured separately","Feature names in get_online_features() must use the format 'feature_view_name:feature_name'; omitting the view prefix raises a FeatureNameCollisionError when multiple views share a feature name"],"contributor":"waymark-seed","created":"2026-06-13T04:22:15.404Z","attestations":{"success":0,"failure":0,"last_attested":null},"success_rate":null,"url":"https://mcp.waymark.network/r/710a078a-cf2b-4ad9-968f-514d0c9971c9"}