I have a Django project on an Ubuntu EC2 node, which I have been using to set up an asynchronous using Celery.
I am following How to list the queued items in celery? along with the docs, to experiment with celery at the command line.
I've been able to get a basic task working at the command line, using:
(env1)ubuntu@ip-172-31-22-65:~/projects/tp$ celery --app=myproject.celery:app worker --loglevel=INFO
However, if I run other celery commands like below I'm getting the following:
(env1)ubuntu@ip-172-31-22-65:~/projects/tp$ celery inspect ping
Traceback (most recent call last):File "/home/ubuntu/.virtualenvs/env1/bin/celery", line 11, in <module>sys.exit(main())File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/celery/__main__.py", line 30, in mainmain()File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/celery/bin/celery.py", line 81, in maincmd.execute_from_commandline(argv)File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/celery/bin/celery.py", line 769, in execute_from_commandlinesuper(CeleryCommand, self).execute_from_commandline(argv)))File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/celery/bin/base.py", line 307, in execute_from_commandlinereturn self.handle_argv(self.prog_name, argv[1:])File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/celery/bin/celery.py", line 761, in handle_argvreturn self.execute(command, argv)File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/celery/bin/celery.py", line 693, in execute).run_from_argv(self.prog_name, argv[1:], command=argv[0])File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/celery/bin/base.py", line 311, in run_from_argvsys.argv if argv is None else argv, command)File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/celery/bin/base.py", line 373, in handle_argvreturn self(*args, **options)File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/celery/bin/base.py", line 270, in __call__ret = self.run(*args, **kwargs)File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/celery/bin/celery.py", line 324, in runreturn self.do_call_method(args, **kwargs)File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/celery/bin/celery.py", line 346, in do_call_methodcallback=self.say_remote_command_reply)File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/celery/bin/celery.py", line 385, in callreturn getattr(i, method)(*args)File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/celery/app/control.py", line 100, in pingreturn self._request('ping')File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/celery/app/control.py", line 71, in _requesttimeout=self.timeout, reply=True,File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/celery/app/control.py", line 307, in broadcastlimit, callback, channel=channel,File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/kombu/pidbox.py", line 283, in _broadcastchan = channel or self.connection.default_channelFile "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/kombu/connection.py", line 756, in default_channelself.connectionFile "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/kombu/connection.py", line 741, in connectionself._connection = self._establish_connection()File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/kombu/connection.py", line 696, in _establish_connectionconn = self.transport.establish_connection()File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/kombu/transport/pyamqp.py", line 112, in establish_connectionconn = self.Connection(**opts)File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/amqp/connection.py", line 165, in __init__self.transport = self.Transport(host, connect_timeout, ssl)File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/amqp/connection.py", line 186, in Transportreturn create_transport(host, connect_timeout, ssl)File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/amqp/transport.py", line 299, in create_transportreturn TCPTransport(host, connect_timeout)File "/home/ubuntu/.virtualenvs/env1/lib/python3.4/site-packages/amqp/transport.py", line 95, in __init__raise socket.error(last_err)
OSError: [Errno 111] Connection refused
The installed python packages:
(env1)ubuntu@ip-172-31-22-65:~/projects/tp$ pip freeze
amqp==1.4.6
anyjson==0.3.3
billiard==3.3.0.19
celery==3.1.17
Django==1.7.7
django-redis-cache==0.13.0
kombu==3.0.24
pytz==2015.2
redis==2.10.3
requests==2.6.0
uWSGI==2.0.10
/projects/tp/tp/celery.py
from __future__ import absolute_importimport os
import django
from celery import Celery
from django.conf import settings# set the default Django settings module for the 'celery' program.
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'tp.settings')
django.setup()app = Celery('hello_django')# Using a string here means the worker will not have to
# pickle the object when using Windows.
app.config_from_object('django.conf:settings')
app.autodiscover_tasks(lambda: settings.INSTALLED_APPS)
also , in redis.conf:
# Specify the path for the unix socket that will be used to listen for
# incoming connections. There is no default, so Redis will not listen
# on a unix socket when not specified.
#unixsocket /var/run/redis/redis.sockunixsocketperm 777
tp.settings.py:
# CELERY SETTINGS
BROKER_URL = 'redis://localhost:6379/0'
CELERY_ACCEPT_CONTENT = ['json']
CELERY_TASK_SERIALIZER = 'json'
CELERY_RESULT_SERIALIZER = 'json'CACHES = {'default': {'BACKEND': 'redis_cache.RedisCache','LOCATION': '/var/run/redis/redis.sock',},
}
edit 2:
ubuntu@ip-172-31-22-65:~$ redis-cli ping
PONG
ubuntu@ip-172-31-22-65:~$ service redis-server status
redis-server is not running
edit 3:
(env1)ubuntu@ip-172-31-22-65:~/projects/tp$ redis-cli ping
PONG
(env1)ubuntu@ip-172-31-22-65:~/projects/tp$ sudo service redis-server start
Starting redis-server: failed
(env1)ubuntu@ip-172-31-22-65:~/projects/tp$ service redis-server status
redis-server is not running
What am I doing wrong?