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Have anybody tried debugging celeryd worker using pdb? Whenever a breakpoint is encountered (either by running celeryd via pdb, or by pdb.set_trace()), I hit the following error:
Error while handling action event. Traceback (most recent call last): File "/home/jeeyo/workspace3/uwcr/subscriptions/tasks.py", line 79, in process_action_event func(action_event) File "/home/jeeyo/workspace3/uwcr/subscriptions/tasks.py", line 36, in new_user_email send_registration_email(username, new_user.get_profile().plaintext_password) File "/home/jeeyo/workspace3/uwcr/looers/email.py", line 18, in send_registration_email 'Your password from UWCoopRankings', user File "/home/jeeyo/workspace3/uwcr/looers/email.py", line 61, in send_email if isinstance(to, basestring): File "/home/jeeyo/workspace3/uwcr/looers/email.py", line 61, in send_email if isinstance(to, basestring): File "/usr/lib/python2.6/bdb.py", line 46, in trace_dispatch return self.dispatch_line(frame) File "/usr/lib/python2.6/bdb.py", line 65, in dispatch_line if self.quitting: raise BdbQuit BdbQuit Any solution to this?
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First, I open my project in Eclipse and put a breakpoint at the beginning of the task function. Then, I'm starting the Celery workers from Eclipse by Right Clicking on manage.py from the PyDev Package Explorer and choosing "Debug As->Python Run" and specifying "celeryd -l info" as the argument.
The module pdb defines an interactive source code debugger for Python programs. It supports setting (conditional) breakpoints and single stepping at the source line level, inspection of stack frames, source code listing, and evaluation of arbitrary Python code in the context of any stack frame.
Go to Edit Configuration , then select the '+' icon to add new Python script and enter the celery path, other parameters and working directory. You can specify environment variables and bottom of that you have the option to select parent environment to include as well.
I had the same problem. Try using Celery's remote debugger rdb instead:
from celery import task from celery.contrib import rdb @task() def add(x, y): result = x + y rdb.set_trace() # <- set break-point return result See the user guide (link update 2017/5).
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