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I have checked the commit log
to find out if the bug was already fixed in the main branch.
I have included all related issues and possible duplicate issues
in this issue (If there are none, check this box anyway).
I have tried to reproduce the issue with pytest-celery and added the reproduction script below.
Mandatory Debugging Information
I have included the output of celery -A proj report in the issue.
(if you are not able to do this, then at least specify the Celery
version affected).
I have verified that the issue exists against the main branch of Celery.
I have included the contents of pip freeze in 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.
I have tried reproducing the issue on more than one version of the message
broker and/or result backend.
I have tried reproducing the issue on more than one operating system.
I have tried reproducing the issue on more than one workers pool.
I have tried reproducing the issue with autoscaling, retries,
ETA/Countdown & rate limits disabled.
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
Celery version:
celery report Output:
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:
Other Dependencies
N/A
Minimally Reproducible Test Case
Expected Behavior
Actual Behavior
Happens on the latest version of celery.
On some complex scenarios, when there is some chaining of chains that contain groups, a task that is chained after a group will run multiple times.
For example, here task_b and task_c should be printed only once, but each one is printed twice
Checklist
main
branch of Celery.contribution guide
on reporting bugs.
for similar or identical bug reports.
for existing proposed fixes.
to find out if the bug was already fixed in the main branch.
in this issue (If there are none, check this box anyway).
Mandatory Debugging Information
celery -A proj report
in the issue.(if you are not able to do this, then at least specify the Celery
version affected).
main
branch of Celery.pip freeze
in the issue.to reproduce this bug.
Optional Debugging Information
and/or implementation.
result backend.
broker and/or result backend.
ETA/Countdown & rate limits disabled.
and/or upgrading Celery and its dependencies.
Related Issues and Possible Duplicates
Related Issues
Possible Duplicates
Environment & Settings
Celery version:
celery report
Output:Steps to Reproduce
Required Dependencies
Python Packages
pip freeze
Output:Other Dependencies
N/A
Minimally Reproducible Test Case
Expected Behavior
Actual Behavior
Happens on the latest version of celery.
On some complex scenarios, when there is some chaining of chains that contain groups, a task that is chained after a group will run multiple times.
For example, here task_b and task_c should be printed only once, but each one is printed twice
Output:
The text was updated successfully, but these errors were encountered: