django/celery - celery status: Error: No nodes replied within time constraint

celery, django, django-celery, python

Solution

I solved my problem, it was a very simple solution, but it was also a weird one: What I did was:

$ /etc/init.d/celerybeat restart
$ /etc/init.d/celeryd restart
$ service celeryd restart

I had to do this in that order, other way I'd get an ugly Error: No nodes replied within time constraint.

Problem

I'm trying to deploy a simple example of celery in my production server, I've followed the tutorial in the celery website about running celery as daemon http://docs.celeryproject.org/en/latest/tutorials/daemonizing.html#daemonizing, and I got the config file in /etc/default/celeryd ``` 1 # Name of nodes to start 2 # here we have a single node 3 CELERYD_NODES="w1" 4 # or we could have three nodes: 5 #CELERYD_NODES="w1 w2 w3" 6 7 # Where to chdir at start. 8 CELERYD_CHDIR="/home/audiwime/cidec_sw" 9 10 # Python interpreter from environment. 11 ENV_PYTHON="/usr/bin/python26" 12 13 # How to call "manage.py celeryd_multi" 14 CELERYD_MULTI="$ENV_PYTHON $CELERYD_CHDIR/manage.py celeryd_multi" 15 16 # # How to call "manage.py celeryctl" 17 CELERYCTL="$ENV_PYTHON $CELERYD_CHDIR/manage.py celeryctl" 18 19 # Extra arguments to celeryd 20 CELERYD_OPTS="--time-limit=300 --concurrency=8" 21 22 # Name of the celery config module. 23 CELERY_CONFIG_MODULE="celeryconfig" 24 25 # %n will be replaced with the nodename. 26 CELERYD_LOG_FILE="/var/log/celery/%n.log" 27 CELERYD_PID_FILE="/var/run/celery/%n.pid" 28 29 # Workers should run as an unprivileged user. 30 CELERYD_USER="audiwime" 31 CELERYD_GROUP="audiwime" 32 33 export DJANGO_SETTINGS_MODULE="cidec_sw.settings" ``` but if I run ``` celery status ``` in the terminal, i got this response: ``` Error: No nodes replied within time constraint ``` I can restart celery via the celeryd script provided in https://github.com/celery/celery/tree/3.0/extra/generic-init.d/ ``` /etc/init.d/celeryd restart celeryd-multi v3.0.12 (Chiastic Slide) > w1.one.cloudwime.com: DOWN > Restarting node w1.one.cloudwime.com: OK ``` I can run `python26 manage.py celeryd -l info` and my tasks in django run fine, but if I let the daemon do its work I don't get any results, don't even errors in /var/log/celery/w1.log I know that my task has been registered because I did this ``` from celery import current_app def call_celery_delay(request): print current_app.tasks run.delay(request.GET['age']) return HttpResponse(content="celery task set",content_type="text/html") ``` and I get a dictionary in which my task appear ``` {'celery.chain': <@task: celery.chain>, 'celery.chunks': <@task: celery.chunks>, 'celery.chord': <@task: celery.chord>, 'tasks.add2': <@task: tasks.add2>, 'celery.chord_unlock': <@task: celery.chord_unlock>, **'tareas.tasks.run': <@task: tareas.tasks.run>**, 'tareas.tasks.add': <@task: tareas.tasks.add>, 'tareas.tasks.test_two_minute': <@task: tareas.tasks.test_two_minute>, 'celery.backend_cleanup': <@task: celery.backend_cleanup>, 'celery.map': <@task: celery.map>, 'celery.group': <@task: celery.group>, 'tareas.tasks.test_one_minute': <@task: tareas.tasks.test_one_minute>, 'celery.starmap': <@task: celery.starmap>} ``` but besides that I get nothing else, no result from my task, no error in the logs, nothing. What can be wrong?

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