Celery 不啟動任務 python django

Question

我的應用程序不調用 celery 任務

我的設置.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'

這是referal_app目錄中的init .py：

from __future__ import absolute_import
from .celery import app as celery_app

__all__ = ('celery_app',)

這是我必須調用 celery 任務的觀點：

class DefineView(View):

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

這是我的任務（只是測試工作）：

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

這是referal_app目錄中的celery設置：

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}')

When i launching celery i cant see function lounching Here is celery -A referal_app worker -l INFO command output:

[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

你需要啟動 celery 進程

運行此命令測試 celery（您需要將此命令運行到 Django 項目目錄中）

celery -A <django_project> worker -l info

如果一切正常，那么您就可以在生產中使用 celery

我建議使用supervisor ，讓我們安裝那個 install supervisor

sudo apt-get install supervisor

現在創建一個配置文件

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

這是示例（這里我使用 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

運行以下命令來停止、啟動和/或檢查 celery 程序的狀態（此處為應用程序名稱 celery）

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