Celery CELERY_TASK_RESULT_EXPIRES should be

The Fix

pip install celery==4.4.0rc5

Based on closed celery/celery issue #5473 · PR/commit linked

Production note: This usually shows up under retries/timeouts. Treat it as a side-effect risk until you can verify behavior with a canary + real traffic.

Open PR/Commit

@@ -113,7 +113,7 @@ have been moved into a new  ``task_`` prefix.
 ``CELERY_RESULT_EXCHANGE``                 :setting:`result_exchange`
 ``CELERY_RESULT_EXCHANGE_TYPE``            :setting:`result_exchange_type`
-``CELERY_TASK_RESULT_EXPIRES``             :setting:`result_expires`
+``CELERY_RESULT_EXPIRES``                  :setting:`result_expires`
 ``CELERY_RESULT_PERSISTENT``               :setting:`result_persistent`

fix.md

Option A — Upgrade to fixed release\npip install celery==4.4.0rc5\nWhen NOT to use: This fix is not applicable if the documentation is already correct.\n\n

Why This Fix Works in Production

Trigger: - [X] I have included all related issues and possible duplicate issues in this issue
Mechanism: Documentation incorrectly referenced CELERY_TASK_RESULT_EXPIRES instead of CELERY_RESULT_EXPIRES
Why the fix works: Updated the documentation to replace CELERY_TASK_RESULT_EXPIRES with CELERY_RESULT_EXPIRES, fixing issue #5473. (first fixed release: 4.4.0rc5).

Production impact:

If left unfixed, the same config can fail only in production (env differences), causing startup failures or partial feature outages.

Why This Breaks in Prod

Documentation incorrectly referenced CELERY_TASK_RESULT_EXPIRES instead of CELERY_RESULT_EXPIRES
Production symptom (often without a traceback): - [X] I have included all related issues and possible duplicate issues in this issue

Proof / Evidence

GitHub issue: #5473
Fix PR: https://github.com/celery/celery/pull/5475
First fixed release: 4.4.0rc5
Reproduced locally: No (not executed)
Last verified: 2026-02-09
Confidence: 0.85
Did this fix it?: Yes (upstream fix exists)
Own content ratio: 0.63

Discussion

High-signal excerpts from the issue thread (symptoms, repros, edge-cases).

Jump to Sources Open on GitHub

“would you mind sending a doc improvement pr?”

@auvipy · 2019-04-18 · source

Failure Signature (Search String)

- [X] I have included all related issues and possible duplicate issues in this issue
or possible duplicates to this issue as requested by the checklist above.

Copy-friendly signature

signature.txt

Failure Signature
-----------------
- [X] I have included all related issues and possible duplicate issues in this issue
or possible duplicates to this issue as requested by the checklist above.

Error Message

Signature-only (no traceback captured)

error.txt

Error Message
-------------
- [X] I have included all related issues and possible duplicate issues in this issue
or possible duplicates to this issue as requested by the checklist above.

What Broke

Users experienced confusion due to incorrect documentation leading to misconfiguration.

Why It Broke

Documentation incorrectly referenced CELERY_TASK_RESULT_EXPIRES instead of CELERY_RESULT_EXPIRES

Fix Options (Details)

Option A — Upgrade to fixed release Safe default (recommended)

pip install celery==4.4.0rc5

When NOT to use: This fix is not applicable if the documentation is already correct.

Use when you can deploy the upstream fix. It is usually lower-risk than long-lived workarounds.

Fix reference: https://github.com/celery/celery/pull/5475

First fixed release: 4.4.0rc5

Last verified: 2026-02-09. Validate in your environment.

When NOT to Use This Fix

This fix is not applicable if the documentation is already correct.

Did This Fix Work in Your Case?

Quick signal helps us prioritize which fixes to verify and improve.

Prevention

Capture the exact failing error string in logs and tests so you can reproduce via a minimal script.
Pin production dependencies and upgrade only with a reproducible test that hits the failing path.

Version Compatibility Table

Version	Status
4.4.0rc5	Fixed

Related Issues

No related fixes found.

Cluster: celery:configuration-error Celery hub Celery best practices All hubs All clusters

Related clusters: Data consistency Duplicates Duplicate processing

Sources

We don’t republish the full GitHub discussion text. Use the links above for context.

Celery CELERY_TASK_RESULT_EXPIRES should be CELERY_RESULT_EXPIRES (Fix)