Description

ntkathole

opened on Apr 1, 2026

Issue body actions

Current Behavior

The 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.

Correctly scoped (name + project):

apply_entity (line 349-352):

if (existing_entity_proto.spec.name == entity_proto.spec.name
    and existing_entity_proto.spec.project == project):

apply_feature_service (line 447-451):

if (existing_feature_service_proto.spec.name == feature_service_proto.spec.name
    and existing_feature_service_proto.spec.project == project):

apply_feature_view (line 779-781):

if (existing_feature_view_proto.spec.name == feature_view_proto.spec.name
    and existing_feature_view_proto.spec.project == project):

BUG - name-only matching, no project filter:

apply_data_source (line 396-397):

        for idx, existing_data_source_proto in enumerate(registry.data_sources):
            if existing_data_source_proto.name == data_source.name:

delete_data_source (line 426):

if data_source_proto.name == name:

Steps to reproduce

• feast apply for project test registers vals_to_add with project=test
• feast apply for project test1 iterates all data_sources, finds vals_to_add from project test (matched by name only, no project check)
• 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

Specifications

• Version: latest

Possible Solution

The fix would be to add the project filter to both apply_data_source and delete_data_source:

# apply_data_source fix (line 397):
if existing_data_source_proto.name == data_source.name and existing_data_source_proto.project == project:

# delete_data_source fix (line 426):
if data_source_proto.name == name and data_source_proto.project == project:

Activity

1. ntkathole

   added

   kind/bug

   priority/p2

   good first issueGood for newcomersGood for newcomers

   starter-ticketGood starter ticketsGood starter tickets

   on Apr 1, 2026
2. mango766

   added a commit that references this issue on Apr 1, 2026

   fix: scope data source operations by project in shared registry

   This issue will close once commit c39116d is merged into the 'master' branch.

   c39116d
3. ntkathole

   added the

   Bug

   issue type on Apr 1, 2026
4. megha2720 commented on Apr 2, 2026

   

   megha2720

   on Apr 2, 2026

   More actions

   Hi! I'm a professional trainee interested in contributing to Feast. I've recently worked on XGBoost and data engineering projects. I'd love to take this on as my first issue! Could you assign it to me?
5. ntkathole commented on Apr 2, 2026

   

   ntkathole

   on Apr 2, 2026

   MemberAuthor

   More actions

   @megha2720 Thanks for showing interest, I don;t see any response from @mango766 on PR raised for this issue, feel free to pick it up.
6. ntkathole

   assigned

   megha2720

   on Apr 2, 2026
7. mailtoboggavarapu-coder

   added 8 commits that reference this issue on Apr 20, 2026

   fix: add project filter to apply_data_source in shared registry

   This issue will close once commit 7243af3 is merged into the 'master' branch.

   7243af3

   fix: add project filter to apply_data_source and delete_data_source

   This issue will close once commit 945576e is merged into the 'master' branch.

   945576e

   fix: add project filter to apply_data_source and delete_data_source

   This issue will close once commit 9378ca8 is merged into the 'master' branch.

   9378ca8

   fix: Add project filter to apply_data_source and delete_data_source

   This issue will close once commit 5b34cbb is merged into the 'master' branch.

   5b34cbb

   test: add cross-project isolation tests for apply/delete_data_source

   This issue will close once commit 43faac7 is merged into the 'master' branch.

   43faac7

   test: add cross-project isolation tests for apply/delete_data_source

   This issue will close once commit 8a65e52 is merged into the 'master' branch.

   8a65e52

   fix: Add project filter to apply_data_source and delete_data_source (f…

   This issue will close once commit 7af2d71 is merged into the 'master' branch.

   7af2d71

   test: add cross-project isolation tests for apply/delete_data_source

   This issue will close once commit b902836 is merged into the 'master' branch.

   b902836
8. ntkathole

   added 3 commits that reference this issue on May 1, 2026

   fix: Add project filter to apply_data_source and delete_data_source (f…

   This issue will close once commit dd8874a is merged into the 'master' branch.

   dd8874a

   test: add cross-project isolation tests for apply/delete_data_source

   This issue will close once commit b7fa291 is merged into the 'master' branch.

   b7fa291

   fix: Add project filter to apply_data_source and delete_data_source (c…

   This issue will close once commit 96562c4 is merged into the 'master' branch.

   96562c4
9. ntkathole

   closed this as completedin #6322on May 1, 2026
10. franciscojavierarceo

    added a commit that references this issue on May 4, 2026

    chore(release): release 0.63.0

    50ad181

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