René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Improved feature view and model versioning","articleBody":"# Problem\r\nWhen using Feast, it can be hard to version features with respect to models in production. \r\n- Users modifying a re-used feature view (e.g. in response to upstream schema change) can accidentally impact other models in production\r\n- Hard to tie versions of features together or versions of models (~`FeatureService`)\r\n\r\nAs Feast adds batch transformations or #2597, transformation logic will also need to be versioned. This is already an issue today with on demand feature views too.  \r\n\r\n# Potential solution\r\nOne way to address this is to double down on:\r\n### 1. Feature services as the central way to retrieve features + track models. \r\n  - Registering a feature service signifies dependent features / feature views are in \"production\"\r\n  - Allow `feature_service.get_historical_features` or `feature_service.get_online_features`\r\n### 2. Improvements to `feast plan` and `feast apply`\r\n  - `feast plan` that prevents deletion or editing of feature views that feature services in prod depend on (Modifying https://github.com/feast-dev/feast/blob/master/sdk/python/feast/feature_store.py#L594)\r\n    - If you remove a feature service, then the underlying feature views could be removed if no other feature service depend on it\r\n  - `feast apply` that fails in above case by default (overridable though)\r\n     - e.g. modifying the logic at https://github.com/feast-dev/feast/blob/master/sdk/python/feast/feature_store.py#L676\r\n### 3. Feature view versioning\r\n  - Not super sure here on the best practice, but a way to say that feature view B is a new version of feature view A.\r\n\r\n","author":{"url":"https://github.com/adchia","@type":"Person","name":"adchia"},"datePublished":"2022-05-23T18:49:40.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/2728/feast/issues/2728"}