I am trying to check celery results from the command line but get a No Result Backend Configured error. I have setup redis as my result backend and am now at a loss.
I have the celery app setup like so:
qflow/celery.py:
os.environ.setdefault('CELERY_CONFIG_MODULE', 'qflow.celeryconfig')
app = Celery(
'qflow',
include=['qflow.tasks']
)
app.config_from_envvar('CELERY_CONFIG_MODULE')
The config module (qflow/celeryconfig.py) looks like so:
broker_url = 'redis://localhost:6379/0'
result_backend = 'redis://localhost:6379/0'
result_persistent = True
task_result_expires = None
send_events = True
The celery worker starts fine:
$ celery -A qflow worker -E -l info
-------------- celery@james-laptop v4.0.2 (latentcall)
---- **** -----
--- * *** * -- Linux-4.8.0-52-generic-x86_64-with-debian-stretch-sid 2017-07-21 14:22:34
-- * - **** ---
- ** ---------- [config]
- ** ---------- .> app: qflow:0x7fcbde317f28
- ** ---------- .> transport: redis://localhost:6379/0
- ** ---------- .> results: redis://localhost:6379/0
- *** --- * --- .> concurrency: 4 (prefork)
-- ******* ---- .> task events: ON
--- ***** -----
-------------- [queues]
.> celery exchange=celery(direct) key=celery
It seems to indicate that results are configured.
I import the tasks and start them from my webapp (based on falcon, running with gunicorn), but when I try to query it on the command line with celery result <task_id>, I get:
Traceback (most recent call last):
File "/home/james/miniconda3/envs/qflow/bin/celery", line 11, in <module>
load_entry_point('celery', 'console_scripts', 'celery')()
File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/__main__.py", line 14, in main
_main()
File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/celery.py", line 326, in main
cmd.execute_from_commandline(argv)
File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/celery.py", line 488, in execute_from_commandline
super(CeleryCommand, self).execute_from_commandline(argv)))
File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/base.py", line 281, in execute_from_commandline
return self.handle_argv(self.prog_name, argv[1:])
File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/celery.py", line 480, in handle_argv
return self.execute(command, argv)
File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/celery.py", line 412, in execute
).run_from_argv(self.prog_name, argv[1:], command=argv[0])
File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/base.py", line 285, in run_from_argv
sys.argv if argv is None else argv, command)
File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/base.py", line 368, in handle_argv
return self(*args, **options)
File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/base.py", line 244, in __call__
ret = self.run(*args, **kwargs)
File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/result.py", line 40, in run
value = task_result.get()
File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/result.py", line 189, in get
on_message=on_message,
File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/backends/base.py", line 466, in wait_for_pending
no_ack=no_ack,
File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/backends/base.py", line 772, in _is_disabled
raise NotImplementedError(E_NO_BACKEND.strip())
NotImplementedError: No result backend is configured.
Please see the documentation for more information.
I'm running on linux (4.8.0-52-generic)
celery app. It should be something like thisapp = Celery( 'qflow', include=['qflow.tasks'], broker='redis://localhost:6379/0' ). And check your redis connection – Clack