Celery workers take 5 jobs immediately despite telling them not to

Question

I start my celery workers with

celery -A workerTasks worker --concurrency 1

In django's settings.py I also have:

CELERYD_PREFETCH_MULTIPLIER = 1
CELERY_worker_prefetch_multiplier = 1

But the workers still consume 5 tasks as soon as they connect to the celery broker.

What am I missing?

Answer 1

Ok,so my mistake was that I was setting the config on the server-side rather than the worker-side. When creating the Celery app I can set the configuration explicitly like this:

app = Celery('workerTasks', broker='whatever')


app.conf['worker_prefetch_multiplier'] = 1