Question

我正在尝试在我的Django设置中为Celery设置一些设置，但无论我把它放在哪里：

CELERYD_MAX_TASKS_PER_CHILD=1

它始终允许同时启动多个任务。我尝试将其放入settings.py和proj.settings。我的celery.py如下：

from __future__ import absolute_import, unicode_literals
import os
from celery import Celery

# set the default Django settings module for the 'celery' program.
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'proj.settings')

app = Celery('proj', backend='redis://', broker='redis://localhost')


# Using a string here means the worker doesn't have to serialize
# the configuration object to child processes.
# - namespace='CELERY' means all celery-related configuration keys
#   should have a `CELERY_` prefix.
app.config_from_object('django.conf:settings', namespace='CELERY')

# Load task modules from all registered Django app configs.
app.autodiscover_tasks()

Answer 1

默认情况下没有限制。

尝试

from celery import conf
conf.CELERYD_MAX_TASKS_PER_CHILD = 1 #max_tasks_per_child

此外，您可以在启动时将cmd作为参数传递给它（取决于版本）：

--maxtasksperchild=1

或

--max-tasks-per-child=1

Source

Answer 2

应该去的地方是settings.py：

CELERY_WORKER_CONCURRENCY = 1   # this is the one I was actually looking for
CELERY_MAX_TASKS_PER_CHILD = 1

如何使用Django在Celery中设置每个孩子的最大任务？

2 个答案: