[celery-users] Celery Worker silently exits (exit code 0)

Micah Hausler

10 years ago

Hi all,

I'm using Celery with Django for background tasks, and I have in the lats
few weeks had multiple workers just exit (with code 0) without any output.
I'm pretty lost as to where to start debugging, so I'd really appreciate
any help on figuring out how this is happening. I've not changed the
version of celery, django, OS, Redis, or python in months, so I'm very
confused why this is happening.

*Versions*
Ubuntu 12.04

Linux 3.2.0-69-virtual (AWS)

celery==3.1.17

django-celery==3.1.16

Django==1.7.7

redis==2.10.3

Redis 2.8.6

Python 2.7.3

supervisord 3.1.3

*Supervisor Main Log *

2015-07-06 08:49:31,179 INFO exited: ambition_worker_aaaaabbbbb (exit
status 0; expected)

*Supervisor Worker Log*

[2015-07-06 08:49:25,262: INFO/MainProcess] Received task:
xxxx_yyyy.tasks.ConvertEventsToEmails[6219057c-41e4-45c9-bed0-eeabc6699ca9]

[2015-07-06 08:49:25,263: INFO/MainProcess] Ambition Autoscaler:
{'max_prefetch': 4, 'reserved_requests': 1, 'num_processes': 1,
'active_requests': 0}

[2015-07-06 08:49:25,398: INFO/MainProcess] Task xxxx_yyyy.tasks.ConvertEventsToEmails[6219057c-41e4-45c9-bed0-eeabc6699ca9]
succeeded in 0.132920803968s: None

-------------- ***@aaaaabbbbb v3.1.17 (Cipater)

---- **** -----

--- * *** * -- Linux-3.2.0-69-virtual-x86_64-with-Ubuntu-12.04-precise

-- * - **** ---

- ** ---------- [config]

- ** ---------- .> app: production:0x1f22b90

- ** ---------- .> transport:
redis://yyyy.zzzz.0001.use1.cache.amazonaws.com:6379/0

- ** ---------- .> results: redis://yyyy.zzzz
.0001.use1.cache.amazonaws.com:6379/0

- *** --- * --- .> concurrency: {min=1, max=5} (prefork)

-- ******* ----

--- ***** ----- [queues]

-------------- .> ambition-aaaaabbbbb-async exchange=ambition-aaaaabbbbb-async(direct)
key=ambition-aaaaabbbbb-async

[tasks]

. a.x.a.tasks.XxYyZzTask

. a.x.b.tasks.XxYyZzTask

. a.x.c.tasks.XxYyZzTask

. a.x.d.tasks.XxYyZzTask

. a.x.e.tasks.XxYyZzTask

. a.y.f.tasks.XxYyZzTask

. a.y.g.tasks.XxYyZzTask

. a.y.g.tasks.XxYyPhoto

. a.y.h.tasks.XxYyZzTask

. a.y.h.tasks.XxYyTask

. a.z.tasks.XxYyZzTask

. a.a.tasks.XxYyZzTask

. a.a.tasks.XxYyTask

. b.b.XxYyZzTask

. b.b.XxYyZzTask

. c.c.XxYyTask

. c.c.XxTask

. c.c.ZzTask

. d.tasks.XxYyZzTask

. e.tasks.XxYyZzTask

. xxxx_yyyy.tasks.ConvertEventsToEmails

. xxxx_yyyy.tasks.XxYyZzTask

. f.tasks.XxYyZzTask

. g.tasks.XxYyZzTask

. h.x.a._generate_file

[2015-07-06 13:10:30,964: INFO/MainProcess] Connected to redis://yyyy.zzzz
.0001.use1.cache.amazonaws.com:6379/0

[2015-07-06 13:10:30,991: INFO/MainProcess] celery@ aaaaabbbbb ready.

*Command*

command=/var/app/env/bin/newrelic-admin run-python /var/app/manage.py
celery worker \

--hostname=aaaaabbbbb \

--no-execv \

--pool=prefork \

--autoscale=5,1 \

--without-gossip \

--without-mingle \

--maxtasksperchild=100 \

--loglevel=INFO \

--pidfile=/opt/sockets/ambition_worker_aaaaabbbbb.pid \

-Ofair

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