我有一个Django应用程序,其中我在task.py
下定义了几个@task
函数,以便在给定的周期性任务中执行。我百分之百地确定这个问题不是由task.py
或任何与代码相关的代码引起的,而是由settings.py
或我的celery worker中的某些配置引起的。在
任务确实在周期性任务中执行,但会多次执行。在
以下是芹菜工人日志:
celery -A cimexmonitor worker --loglevel=info -B -c 4
[2019-09-19 21:22:16,360: INFO/ForkPoolWorker-5] Project Monitor Started : APPProject1
[2019-09-19 21:22:16,361: INFO/ForkPoolWorker-4] Project Monitor Started : APPProject1
[2019-09-19 21:25:22,108: INFO/ForkPoolWorker-4] Project Monitor DONE : APPProject1
[2019-09-19 21:25:45,255: INFO/ForkPoolWorker-5] Project Monitor DONE : APPProject1
[2019-09-20 00:22:16,395: INFO/ForkPoolWorker-4] Project Monitor Started : APPProject2
[2019-09-20 00:22:16,398: INFO/ForkPoolWorker-5] Project Monitor Started : APPProject2
[2019-09-20 01:22:11,554: INFO/ForkPoolWorker-5] Project Monitor DONE : APPProject2
[2019-09-20 01:22:12,047: INFO/ForkPoolWorker-4] Project Monitor DONE : APPProject2
如果你检查以上的时间间隔,任务.py执行一个任务,但两个芹菜工人执行任务,并以相同的时间间隔执行同一个任务。我不知道为什么两个工人一个任务?
在设置.py
from __future__ import absolute_import, unicode_literals
from celery import Celery
import os
from django.conf import settings
os.environ.setdefault('DJANGO_SETTINGS_MODULE','cimexmonitor.settings')
## set the default Django settings module for the 'celery' program.
# Using a string here means the worker don't have to serialize
# the configuration object to child processes.
# - namespace='CELERY' means all celery-related configuration keys
# should have a `CELERY_` prefix.
app = Celery('cimexmonitor')
#app.config_from_object('django.conf:settings', namespace='CELERY')
app.config_from_object('django.conf:settings')
# Load task modules from all registered Django app configs.
app.autodiscover_tasks(settings.INSTALLED_APPS)
@app.task(bind=True)
def debug_task(self):
print('Request: {0!r}'.format(self.request))
→ celery --version
4.3.0 (rhubarb)
→ redis-server --version
Redis server v=3.0.6 sha=00000000:0 malloc=jemalloc-3.6.0 bits=64 build=7785291a3d2152db
django-admin-interface==0.9.2
django-celery-beat==1.5.0
谢谢
worker和beat服务需要同时运行才能按照
https://github.com/celery/django-celery-beat
定期执行任务- Django计划程序:
^{pr2}$celery worker
是如何同时作为DB调度器工作的。在celery worker
就解决了我的问题。在从官方文件:Ensuring a task is only executed one at a time。在
另外,我希望您不要以相同的方式运行多个worker(
celery -A cimexmonitor worker loglevel=info -B -c 4
),因为这意味着您有多个celery beats调度任务要运行。。。简言之-确保你只有一个芹菜节拍运行!在相关问题 更多 >
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