Celery workers are getting terminated automatically after some time with message " Canceling task consumer. "
Checklist
- [x] I have verified that the issue exists against the
mainbranch of Celery. - [ ] This has already been asked to the discussions forum first.
- [x] I have read the relevant section in the contribution guide on reporting bugs.
- [x] I have checked the issues list for similar or identical bug reports.
- [x] I have checked the pull requests list for existing proposed fixes.
- [x] I have checked the commit log to find out if the bug was already fixed in the main branch.
- [x] I have included all related issues and possible duplicate issues in this issue (If there are none, check this box anyway).
Mandatory Debugging Information
- [x] I have included the output of
celery -A proj reportin the issue. (if you are not able to do this, then at least specify the Celery version affected). - [x] I have verified that the issue exists against the
mainbranch of Celery. - [x] I have included the contents of
pip freezein the issue. - [ ] I have included all the versions of all the external dependencies required to reproduce this bug.
Optional Debugging Information
- [ ] I have tried reproducing the issue on more than one Python version and/or implementation.
- [ ] I have tried reproducing the issue on more than one message broker and/or result backend.
- [x] I have tried reproducing the issue on more than one version of the message broker and/or result backend.
- [x] I have tried reproducing the issue on more than one operating system.
- [x] I have tried reproducing the issue on more than one workers pool.
- [x] I have tried reproducing the issue with autoscaling, retries, ETA/Countdown & rate limits disabled.
- [x] I have tried reproducing the issue after downgrading and/or upgrading Celery and its dependencies.
Related Issues and Possible Duplicates
Related Issues
- None
Possible Duplicates
- None
Environment & Settings
5.3.6 (emerald-rush)
celery report Output:
software -> celery:5.3.6 (emerald-rush) kombu:5.3.5 py:3.11.5
billiard:4.2.0 py-amqp:5.2.0
platform -> system:Linux arch:64bit, ELF
kernel version:5.10.192-183.736.amzn2.x86_64 imp:CPython
loader -> celery.loaders.app.AppLoader
settings -> transport:amqp results:django-db
timezone: 'Etc/UTC'
task_compression: 'gzip'
task_serializer: 'json'
task_track_started: True
task_acks_late: True
task_reject_on_worker_lost: False
task_remote_tracebacks: True
result_backend: 'django-db'
result_serializer: 'json'
result_compression: 'gzip'
result_expires: datetime.timedelta(days=1)
result_extended: True
task_queues:
(<unbound Queue default -> <unbound Exchange default(direct)> -> default>,
<unbound Queue etl -> <unbound Exchange etl(direct)> -> etl>,
<unbound Queue report -> <unbound Exchange report(direct)> -> report>)
task_default_queue: 'default'
task_default_exchange: 'default'
task_default_exchange_type: 'direct'
task_default_routing_key: '********'
task_default_delivery_mode: 'transient'
worker_prefetch_multiplier: 4
worker_lost_wait: 1800
worker_send_task_events: True
task_send_sent_event: True
Steps to Reproduce
Required Dependencies
- Minimal Python Version: N/A or Unknown
- Minimal Celery Version: N/A or Unknown
- Minimal Kombu Version: N/A or Unknown
- Minimal Broker Version: N/A or Unknown
- Minimal Result Backend Version: N/A or Unknown
- Minimal OS and/or Kernel Version: N/A or Unknown
- Minimal Broker Client Version: N/A or Unknown
- Minimal Result Backend Client Version: N/A or Unknown
Python Packages
pip freeze Output:
amqp==5.2.0
celery==5.3.6
Django==4.2.9
django-celery-beat==2.5.0
django-celery-results @ file:///tmp/devtools/wheels/django_celery_results-2.5.1-py3-none-any.whl#sha256=3209e274392ff792088d31a98eedfa4ed3c37c89ed16310e0f0acd8f6d1eea93
kombu==5.3.5</summary>
amqp==5.2.0
celery==5.3.6
Django==4.2.9
django-celery-beat==2.5.0
django-celery-results @ file:///tmp/devtools/wheels/django_celery_results-2.5.1-py3-none-any.whl#sha256=3209e274392ff792088d31a98eedfa4ed3c37c89ed16310e0f0acd8f6d1eea93
kombu==5.3.5</summary>
Other Dependencies
N/A
Minimally Reproducible Test Case
Expected Behavior
Celery worker should always be alive even if its idle or processing the data.
Actual Behavior
At first Celery workers start executing as expected but after 30 to 40 mins it is getting offline and after checking the logs got to know that the MainProcess is getting cancelled automatically. It doesn't matter whether I send any data to queue or not but it is just stopping but ForkPoolWorker are working even though it is marked as offline worker in Flower.
[2024-02-28 08:02:57,145: DEBUG/MainProcess] pidbox received method enable_events() [reply_to:None ticket:None]
[2024-02-28 08:02:58,058: DEBUG/MainProcess] pidbox received method enable_events() [reply_to:None ticket:None]
[2024-02-28 08:03:02,146: DEBUG/MainProcess] pidbox received method enable_events() [reply_to:None ticket:None]
[2024-02-28 08:03:03,058: DEBUG/MainProcess] pidbox received method enable_events() [reply_to:None ticket:None]
[2024-02-28 08:03:07,084: DEBUG/MainProcess] Canceling task consumer...
[2024-02-28 08:14:29,082: WARNING/ForkPoolWorker-4] <some data>
[2024-02-28 08:14:29,082: WARNING/ForkPoolWorker-3] <some data>
[2024-02-28 08:14:29,082: WARNING/ForkPoolWorker-2] <some data>
[2024-02-28 08:14:29,082: INFO/ForkPoolWorker-3] <some data>
[2024-02-28 08:14:29,082: INFO/ForkPoolWorker-4] <some data>
[2024-02-28 08:14:29,082: INFO/ForkPoolWorker-1] <some data>
[2024-02-28 08:14:29,082: INFO/ForkPoolWorker-2] <some data>
Note I have masked the data with some data
I am using the same setup in my localhost machine , there it is working as aspected
RabbitMQ Details:
RabbitMQ 3.12.10
Erlang 26.2.2
Does this comment helps you ? @rehbarkhan
Does this comment helps you ? @rehbarkhan
I have tried this method but no luck. I have upgraded my project from Django 2.2 to Django 4.2 and also upgrade the celery, django-celery-results and django-celery-beat accordingly. After the upgrade I am getting this error.