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Continuous memory leak
#4843 · marvelph opened on Jun 23, 2018
178
[K8S] livenessProbe and readinessProbe for celery beat and workers
#4079 · JorisAndrade opened on Jun 8, 2017
67

Worker stalls on _success_was_stored when the result backend is down
celery/celery#10957 · opened on Oct 25, 2026
On the database result backend, a refused chord_unlock retry loses the chord: its body stays PENDING forever and no callback fires
celery/celery#10955 · opened on Oct 25, 2026
A pool child lost after a task's link is published, before its result is stored, fires the error callback beside the link
celery/celery#10954 · opened on Oct 25, 2026
celery control disable_events does nothing on a worker started with -E
celery/celery#10941 · opened on Oct 23, 2026
MongoDB and Cassandra backends let a second run of a task overwrite its stored SUCCESS
celery/celery#10929 · opened on Oct 22, 2026
2
Chord errback set as a single signature is never called; its keys are published as tasks instead
celery/celery#10906 · opened on Oct 21, 2026
debug options in the tutorial raise TypeError
celery/celery#10897 · opened on Oct 19, 2026
1
Request.revoked() ignores later stamped headers: revoke_by_stamped_headers fails to revoke a task when an earlier flagged header doesn't match
celery/celery#10883 · opened on Oct 18, 2026 · 5.7.x
chain(..., chord).on_error() never calls the errback when the chord's header contains a nested chord
celery/celery#10783 · opened on Oct 3, 2026
task.map() / task.starmap() ignore options stored on the signature: .set(queue=, countdown=), .link() and the freeze() task id
celery/celery#10782 · opened on Oct 3, 2026
chord.apply_async(link=...) raises "TypeError: Cannot add link to group", and a chain ending in a chord with a callback fails on the worker
celery/celery#10781 · opened on Oct 3, 2026 · 5.7.0
saferepr drops the closing bracket when the last element is truncated (affects task argsrepr/kwargsrepr )
celery/celery#10760 · opened on Oct 2, 2026 · 5.7.x
A link the broker refuses after the task body ran records FAILURE and acks the message, so the link is never sent
celery/celery#10725 · opened on Sep 28, 2026
2
Celery v5.7.0 release
celery/celery#10633 · opened on Sep 15, 2026 · 5.7.0
Two callables sharing __name__ in one module collapse into one registered task, silently, and the two registration paths disagree about which survives
celery/celery#10576 · opened on Sep 8, 2026 · 5.7.x
1
Django connection pooling is closed at every task boundary
celery/celery#10554 · opened on Sep 3, 2026
Enhancement: Add efficient progress tracking for large groups
celery/celery#10514 · opened on Aug 24, 2026
1
LimitedSet can prematurely evict refreshed items due to stale heap entries
celery/celery#10506 · opened on Aug 21, 2026 · 5.8.0
2
Threads pool has no terminate_job, so revoke and cold shutdown don't have expected behavior
celery/celery#10490 · opened on Aug 16, 2026 · 5.8.0
RDS Proxy pinning the database connection due to Sequence Column Feature
celery/celery#10472 · opened on Aug 10, 2026 · 5.8.0
Celery does not provide a blocked connection timeout mechanism to handle situations where RabbitMQ raises resource alarms and blocks publisher connections.
celery/celery#10386 · opened on Jul 1, 2026 · 5.8.0
Consider a finite default worker_eta_task_limit for ETA/countdown tasks
celery/celery#10384 · opened on Jun 28, 2026
3
Support for long-lived idle RabbitMQ publisher connections with AMQP heartbeats enabled
celery/celery#10380 · opened on Jun 26, 2026
2
Post-Quantum Cryptography: ML-DSA for message signing + PQC TLS for broker connections
celery/celery#10370 · opened on Jun 21, 2026
3
Allow passing durations as timedeltas
celery/celery#10367 · opened on Jun 20, 2026 · 5.8.0

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Issues

Issues

Worker stalls on _success_was_stored when the result backend is down

On the database result backend, a refused chord_unlock retry loses the chord: its body stays PENDING forever and no callback fires

A pool child lost after a task's link is published, before its result is stored, fires the error callback beside the link

`celery control disable_events` does nothing on a worker started with `-E`

MongoDB and Cassandra backends let a second run of a task overwrite its stored SUCCESS

Chord errback set as a single signature is never called; its keys are published as tasks instead

`debug` options in the tutorial raise TypeError

Request.revoked() ignores later stamped headers: revoke_by_stamped_headers fails to revoke a task when an earlier flagged header doesn't match

chain(..., chord).on_error() never calls the errback when the chord's header contains a nested chord

task.map() / task.starmap() ignore options stored on the signature: .set(queue=, countdown=), .link() and the freeze() task id

chord.apply_async(link=...) raises "TypeError: Cannot add link to group", and a chain ending in a chord with a callback fails on the worker

`saferepr` drops the closing bracket when the last element is truncated (affects task `argsrepr/kwargsrepr` )

A link the broker refuses after the task body ran records FAILURE and acks the message, so the link is never sent

Celery v5.7.0 release

Two callables sharing name in one module collapse into one registered task, silently, and the two registration paths disagree about which survives

Django connection pooling is closed at every task boundary

Enhancement: Add efficient progress tracking for large groups

`LimitedSet` can prematurely evict refreshed items due to stale heap entries

Threads pool has no terminate_job, so revoke and cold shutdown don't have expected behavior

RDS Proxy pinning the database connection due to Sequence Column Feature

Celery does not provide a blocked connection timeout mechanism to handle situations where RabbitMQ raises resource alarms and blocks publisher connections.

Consider a finite default `worker_eta_task_limit` for ETA/countdown tasks

Support for long-lived idle RabbitMQ publisher connections with AMQP heartbeats enabled

Post-Quantum Cryptography: ML-DSA for message signing + PQC TLS for broker connections

Allow passing durations as timedeltas