René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"apply_data_source method matches by name only, without filtering by project in shared registry scenario","articleBody":"## Current Behavior\n\nThe issue is in `sdk/python/feast/infra/registry/registry.py`. When multiple projects share the same registry and have data sources with the same name (like the default `vals_to_add`), the `apply_data_source` method matches by name only, without filtering by project, causing cross-project overwriting.\n\n\n**Correctly scoped (name + project)**:\n\napply_entity (line 349-352):\n```\nif (existing_entity_proto.spec.name == entity_proto.spec.name\n    and existing_entity_proto.spec.project == project):\n```\napply_feature_service (line 447-451):\n```\nif (existing_feature_service_proto.spec.name == feature_service_proto.spec.name\n    and existing_feature_service_proto.spec.project == project):\n```\napply_feature_view (line 779-781):\n```\nif (existing_feature_view_proto.spec.name == feature_view_proto.spec.name\n    and existing_feature_view_proto.spec.project == project):\n```\n\n**BUG** - name-only matching, no project filter:\n\napply_data_source (line 396-397):\n```\n        for idx, existing_data_source_proto in enumerate(registry.data_sources):\n            if existing_data_source_proto.name == data_source.name:\n```\ndelete_data_source (line 426):\n\n`            if data_source_proto.name == name:`\n\n\n## Steps to reproduce\n\n- feast apply for project test registers vals_to_add with project=test\n- feast apply for project test1 iterates all data_sources, finds vals_to_add from project test (matched by name only, no project check)\n- The equality check fails (they differ - at minimum different internal state), so it deletes the test version and adds a new one with project=test1\n\n### Specifications\n\n- Version: latest\n\n## Possible Solution\n\nThe fix would be to add the project filter to both apply_data_source and delete_data_source:\n```\n\n# apply_data_source fix (line 397):\nif existing_data_source_proto.name == data_source.name and existing_data_source_proto.project == project:\n\n# delete_data_source fix (line 426):\nif data_source_proto.name == name and data_source_proto.project == project:\n```","author":{"url":"https://github.com/ntkathole","@type":"Person","name":"ntkathole"},"datePublished":"2026-04-01T05:03:48.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/6206/feast/issues/6206"}