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proxy: DELETE of an unknown request returns 200 with zero counts - #1991

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tmckayus:feat/proxy-c21-delete-unknown-request
Sep 28, 2026
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rapids-bot[bot] merged 1 commit into
NVIDIA:mainfrom
tmckayus:feat/proxy-c21-delete-unknown-request

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@tmckayus

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Aborting a missing request is a no-op: return queued/running/cached counts of zero instead of 404. Parity with legacy http server.

Aborting a missing request is a no-op: return queued/running/cached
counts of zero instead of 404.

Signed-off-by: Trevor McKay <tmgithub1@gmail.com>
@tmckayus tmckayus added this to the 26.10 milestone Sep 23, 2026
@tmckayus tmckayus self-assigned this Sep 23, 2026
@tmckayus
tmckayus requested a review from a team as a code owner September 23, 2026 19:10
@tmckayus tmckayus added bug Something isn't working non-breaking Introduces a non-breaking change P0 labels Sep 23, 2026
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📝 Walkthrough

Walkthrough

The deletion endpoint no longer validates request IDs as UUIDs. For a gRPC NOT_FOUND status, it returns zero queued, running, and cached counts. A test checks that deleting an unknown request returns HTTP 200 with those counts.

Changes

Request deletion

Layer / File(s) Summary
Deletion response and test
python/cuopt_server/cuopt_server/proxy_webserver.py, python/cuopt_server/cuopt_server/tests/test_grpc_http_proxy.py
The endpoint returns zero queued, running, and cached counts for NOT_FOUND. The test checks that deleting an unknown request returns HTTP 200 with zero counts. The test uses a shared JSON Accept header.

Estimated code review effort: 2 (Simple) | ~7 minutes

Merge Risk: 🔵 Low · up to 2d2d7

The new test can hang if the proxy stops responding, and the proxy API schema still lists a 404 response this route does not return. Both fixes are localized, so the merge risk is low.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 5 functions across 2 files. Write docstrings for the functions missing them to satisfy the coverage threshold.
✅ Passed checks (4 passed)
Check name Status Explanation
Description check ✅ Passed The description clearly states that deleting a missing request returns zero counts instead of HTTP 404 and matches the changeset.
Title check ✅ Passed The title clearly and concisely identifies the main change: DELETE of an unknown request returns HTTP 200 with zero counts.
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.
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Actionable comments posted: 2


  • 🪄 Fix CodeRabbit comments on this PR
🤖 Prompt to fix review comments
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Inline comments:
In `@python/cuopt_server/cuopt_server/proxy_webserver.py`:
- Line 931: Update the response declaration for the proxy DELETE route handled
by deleterequest to omit HTTP 404 while preserving its other validation
responses; do not alter the shared ValidationErrorResponse map, which is also
used by the self-hosted route.

In `@python/cuopt_server/cuopt_server/tests/test_grpc_http_proxy.py`:
- Around line 1198-1200: Add a finite timeout to the requests.delete call in the
test so the request cannot block indefinitely; preserve its URL and headers.

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Reviewing files that changed from the base of the PR and between 7b08aad and 2d2d793.

📒 Files selected for processing (2)
  • python/cuopt_server/cuopt_server/proxy_webserver.py
  • python/cuopt_server/cuopt_server/tests/test_grpc_http_proxy.py

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@ramakrishnap-nv ramakrishnap-nv left a comment

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Correct REST semantics -- aborting an already-gone request becomes a 200 no-op instead of a 404, and removing _require_uuid here is safe by the same reasoning already verified on #1987: client.status(id) resolves an unknown/malformed key to NOT_FOUND rather than raising, and _get_job is a plain dict.get, so a non-UUID id flows through cleanly to the same zero-count response. Minimal, surgical diff.

Non-blocking: no test covers a malformed (non-UUID) id on this specific route (only unknown-but-well-formed-UUID is tested). Not concerned it's actually broken given the above, but would be good for symmetry with the other routes' coverage.

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CI Test Summary

✅ All 23 test job(s) passed. (1 skipped)

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/merge

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rapids-bot Bot merged commit 0a99d15 into NVIDIA:main Sep 28, 2026
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