无法在 Django Celery Beat 中获取 kwargs 数据

如何解决无法在 Django Celery Beat 中获取 kwargs 数据

我正在使用 Django celery-beat 在应用程序中实现一个提醒模块，我正在周期性任务中创建 cron tab 并在 kwargs 参数中传递字典。它已成功保存在 Django 周期任务表中，但是当计划任务按时运行并调用上述函数时，它不会获取 kwargs 数据并通过异常。

settings.py

INSTALLED_APPS = [    
    'django_celery_beat',]

# CELERY STUFF
CELERY_BROKER_URL = "redis://localhost:6379"
CELERY_RESULT_BACKEND = "redis://localhost:6379"

CELERY_BEAT_SCHEDULER = 'django_celery_beat.schedulers:DatabaseScheduler'
CELERY_ACCEPT_CONTENT = ['application/json']
CELERY_RESULT_SERIALIZER = 'json'
CELERY_TASK_SERIALIZER = 'json'

init.py

from .celery import app as celery_app

all = ("celery_app",)

celery.py

import os

from celery import Celery

os.environ.setdefault("DJANGO_SETTINGS_MODULE","config.settings_local")

app = Celery("baseapp")
app.config_from_object("django.conf:settings",namespace="CELERY")
app.autodiscover_tasks()

这是创建周期性任务的任务调度器功能：

def task_scheduler(raw_data):
try:
    if raw_data["start"] and raw_data["reminder"]:
        reminder_time = datetime.datetime.strptime(raw_data["start"],'%Y-%m-%dT%H:%M:%S.%fZ') - datetime.timedelta(minutes=raw_data["reminder"])
        reminder,_ = CrontabSchedule.objects.get_or_create(
            minute=reminder_time.minute,hour=reminder_time.hour,day_of_week="*",day_of_month=reminder_time.day,month_of_year=reminder_time.month,)
        PeriodicTask.objects.update_or_create(
            name=raw_data["summary"],task="reminder_notification",crontab=reminder,expire_seconds=7200,kwargs=json.dumps({'test132':'123'}),)
except Exception as error:
    print(error)

这是一个提醒通知函数，当任务按时运行时调用：

@shared_task(name="reminder_notification")
def reminder_notification(*args,**kwargs):
    print("hello task")

以下是数据库中的任务：

这里是错误：

[2021-01-07 06:13:00,021: ERROR/Beat] Message Error: Couldn't apply scheduled task celery15: reminder_notification() got an unexpected keyword argument 'test132'
['  File "/home/usman/Documents/venv/bin/celery",line 8,in <module>\n    sys.exit(main())\n','  File "/home/usman/Documents/venv/lib/python3.8/site-packages/celery/__main__.py",line 15,in main\n    sys.exit(_main())\n','  File "/home/usman/Documents/venv/lib/python3.8/site-packages/celery/bin/celery.py",line 213,in main\n    return celery(auto_envvar_prefix="CELERY")\n','  File "/home/usman/Documents/venv/lib/python3.8/site-packages/click/core.py",line 829,in __call__\n    return self.main(*args,**kwargs)\n',line 782,in main\n    rv = self.invoke(ctx)\n',line 1259,in invoke\n    return _process_result(sub_ctx.command.invoke(sub_ctx))\n',line 1066,in invoke\n    return ctx.invoke(self.callback,**ctx.params)\n',line 610,in invoke\n    return callback(*args,'  File "/home/usman/Documents/venv/lib/python3.8/site-packages/click/decorators.py",line 21,in new_func\n    return f(get_current_context(),*args,'  File "/home/usman/Documents/venv/lib/python3.8/site-packages/celery/bin/base.py",line 132,in caller\n    return f(ctx,'  File "/home/usman/Documents/venv/lib/python3.8/site-packages/celery/bin/worker.py",line 327,in worker\n    worker.start()\n','  File "/home/usman/Documents/venv/lib/python3.8/site-packages/celery/worker/worker.py",line 203,in start\n    self.blueprint.start(self)\n','  File "/home/usman/Documents/venv/lib/python3.8/site-packages/celery/bootsteps.py",line 116,in start\n    step.start(parent)\n',line 365,in start\n    return self.obj.start()\n','  File "/home/usman/Documents/venv/lib/python3.8/site-packages/billiard/process.py",line 124,in start\n    self._popen = self._Popen(self)\n','  File "/home/usman/Documents/venv/lib/python3.8/site-packages/billiard/context.py",line 276,in _Popen\n    return _default_context.get_context().Process._Popen(process_obj)\n',line 333,in _Popen\n    return Popen(process_obj)\n','  File "/home/usman/Documents/venv/lib/python3.8/site-packages/billiard/popen_fork.py",line 24,in __init__\n    self._launch(process_obj)\n',line 79,in _launch\n    code = process_obj._bootstrap()\n',in _bootstrap\n    self.run()\n','  File "/home/usman/Documents/venv/lib/python3.8/site-packages/celery/beat.py",line 703,in run\n    self.service.start(embedded_process=True)\n',line 627,in start\n    interval = self.scheduler.tick()\n',line 339,in tick\n    self.apply_entry(entry,producer=self.producer)\n',line 272,in apply_entry\n    exc,traceback.format_stack(),exc_info=True)\n']
Traceback (most recent call last):
  File "/home/usman/Documents/venv/lib/python3.8/site-packages/celery/beat.py",line 386,in apply_async
    return task.apply_async(entry_args,entry_kwargs,File "/home/usman/Documents/venv/lib/python3.8/site-packages/celery/app/task.py",line 526,in apply_async
    check_arguments(*(args or ()),**(kwargs or {}))
TypeError: reminder_notification() got an unexpected keyword argument 'test132'

During handling of the above exception,another exception occurred:

Traceback (most recent call last):
  File "/home/usman/Documents/venv/lib/python3.8/site-packages/celery/beat.py",line 269,in apply_entry
    result = self.apply_async(entry,producer=producer,advance=False)
  File "/home/usman/Documents/venv/lib/python3.8/site-packages/celery/beat.py",line 394,in apply_async
    reraise(SchedulingError,SchedulingError(
  File "/home/usman/Documents/venv/lib/python3.8/site-packages/celery/exceptions.py",line 104,in reraise
    raise value.with_traceback(tb)
  File "/home/usman/Documents/venv/lib/python3.8/site-packages/celery/beat.py",**(kwargs or {}))
celery.beat.SchedulingError: Couldn't apply scheduled task celery15: reminder_notification() got an unexpected keyword argument 'test132'

我做错了什么？

解决方法

我正在成功获取kwargs 数据。

解决方案：

当前运行的worker没有从函数中获取更新的变化，所以我们需要停止worker并再次运行。

celery -A baseapp worker --beat --scheduler django --loglevel=info