芹菜不会启动python Django任务

Question

我的应用程序不调用芹菜任务

my settings.py：

CLICKHOUSE_HOST = '127.0.0.1'
CLICKHOUSE_PORT = '6379'

CELERY_BROKER_URL = 'redis://' + CLICKHOUSE_HOST + ':' + CLICKHOUSE_PORT + '/0'
CELERY_BROKER_TRANSPORT_OPTIONS = {'visibility_timeout': 60}
CELERY_ACCEPT_CONTENT = ['application/json']
CELERY_TASK_SERIALIZER = 'json'
CELERY_RESULT_SERIALIZER = 'json'
CELERY_TIMEZONE = "Australia/Tasmania"
CELERY_TASK_TRACK_STARTED = True
CELERY_TASK_TIME_LIMIT = 30 * 60

CELERY_RESULT_BACKEND = 'django-db'
CELERY_CACHE_BACKEND = 'django-cache'

下面是referal\u应用程序目录中的init.py：

from __future__ import absolute_import
from .celery import app as celery_app

__all__ = ('celery_app',)

以下是我的观点，必须称之为芹菜任务：

class DefineView(View):

    def get(self, request):
        create_points.delay(1, 2)
        return render(request, 'main/homepage.html', {})

这是我的任务（只是测试工作）：

from celery import shared_task

from referal_app.celery import app


@shared_task
def create_points(a, b):
    with open('e:\\txt.txt', 'w') as file:
        for _ in range(1):
            file.write(f'{a + b}')
    return 1

以下是referal_应用程序目录中的芹菜设置：

from __future__ import absolute_import

import os
from celery import Celery

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'referal_app.settings')

app = Celery('referal_app')

app.config_from_object('django.conf:settings', namespace='CELERY')

app.autodiscover_tasks()


@app.task(bind=True)
def debug_task(self):
    print(f'Request: {self.request!r}')

当我放芹菜的时候，我看不到它的虚张声势 以下是celery -A referal_app worker -l INFO命令输出：

[tasks]
  . main.tasks.create_points
  . referal_app.celery.debug_task

[2021-05-28 19:42:52,266: INFO/MainProcess] celery@DESKTOP-LM7RKH1 ready.
[2021-05-28 19:42:52,745: INFO/MainProcess] Received task: referal_app.celery.debug_task[e42e42e2-a3d2-4721-ae37-a35abfe31ca6]
[2021-05-28 19:42:52,747: INFO/MainProcess] Received task: main.tasks.create_points[22d35a11-de3e-4b68-8777-7e4b8756c3bd]
[2021-05-28 19:42:53,870: INFO/MainProcess] Received task: main.tasks.create_points[2211846f-7be7-49c1-9628-d4806fbd4bc0]
[2021-05-28 19:42:53,872: INFO/MainProcess] Received task: referal_app.celery.debug_task[181a599b-5b3b-4e7d-96f7-03f5a7a7d2f0]
[2021-05-28 19:42:54,329: INFO/SpawnPoolWorker-11] child process 11056 calling self.run()
[2021-05-28 19:42:54,337: INFO/SpawnPoolWorker-12] child process 11676 calling self.run()
[2021-05-28 19:42:54,338: INFO/SpawnPoolWorker-9] child process 6560 calling self.run()
[2021-05-28 19:42:54,342: INFO/SpawnPoolWorker-10] child process 16992 calling self.run()

Answer 1

你需要点燃芹菜的过程

运行此命令以测试芹菜（您需要在Django项目目录中运行此命令）

celery -A <django_project> worker -l info

如果一切顺利，那么你就可以在生产中供应芹菜了

我建议使用管理器，让我们安装它 安装管理器

sudo apt-get install supervisor

现在创建一个配置文件

sudo nano /etc/supervisor/conf.d/<app>.conf

以下是示例（这里我使用miniconda）

[program:celery]
command=/home/<user>/miniconda3/envs/venv/bin/celery -A <django_project> worker -l info
directory=<django_project>
user=<user>
group=www-data
autostart=true
autorestart=true
stdout_logfile=/<log_dir>/log/access.log
redirect_stderr=true
numprocs=3
priority=998

最后，使用此命令更新主管

sudo supervisorctl reread
sudo supervisorctl update

运行以下命令以停止、启动和/或检查芹菜程序的状态（此处为应用程序名称芹菜）

sudo supervisorctl stop celery
sudo supervisorctl start celery
sudo supervisorctl status celery