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guoguobaba
V2EX    Python

celery 库的问题

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  •   guoguobaba 2024-06-06 11:37:56 +08:00 1869 次点击
    这是一个创建于 496 天前的主题,其中的信息可能已经有所发展或是发生改变。

    写了一个 celery 的 worker ,和一个 run_celery.py

    from myapp.celery import app as celery_app celery_app.worker_main(argv=['worker', '--loglevel=debug', '-E', '-P', 'eventlet']) 

    用他启动会显示

    [2024-06-06 11:28:27,149: INFO/MainProcess] Task home_application.tasks.handle_query_task[fc8f1d5e-f785-4f5e-bab8-73ba23c81217] received [2024-06-06 11:28:27,150: DEBUG/MainProcess] TaskPool: Apply <function fast_trace_task at 0x000001F03B30EA60> (args:('home_application.tasks.handle_query_task', 'fc8f1d5e-f785-4f5e-bab8-73ba23c81217' 

    就卡住了。

    但是用celery -A myapp worker --loglevel=debug -E -P eventlet启动,就能正常处理工作。

    app/init.py

    from __future__ import absolute_import, unicode_literals from .celery import app as celery_app __all__ = ('celery_app',) 

    app/celery.py

    from __future__ import absolute_import, unicode_literals import os from celery import Celery from myapp import settings os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myapp.settings') app = Celery('myapp') app.config_from_object('django.conf:settings', namespace='CELERY') app.autodiscover_tasks(lambda: settings.INSTALLED_APPS) 

    home_application/tasks.py

    @app.task def handle_query_task(task_id, *args, **kwargs): return {"status": 1, "error": "test"} 
    6 条回复    2024-06-06 17:34:43 +08:00
    Spute
        1
    Spute  
       2024-06-06 11:58:14 +08:00
    celery 是个基于生产消费模型的分布式任务队列,worker 只是消费者,所以你是不是没有生产任务?所以 worker 会“卡住”。
    guoguobaba
        2
    guoguobaba  
    OP
       2024-06-06 12:15:35 +08:00
    @Spute 显然不是啊,有命令行对比的,有命令传过来
    zhoudaiyu
        3
    zhoudaiyu  
    PRO
       2024-06-06 13:32:17 +08:00 via iPhone
    strace 一下卡主的进程,看看在干啥
    hhz
        4
    hhz  
       2024-06-06 14:00:23 +08:00
    windows 下启动的?
    Hopetree
        5
    Hopetree  
       2024-06-06 14:51:24 +08:00
    在 Django 里面使用本身就要在命令行中启动运行,看看我这篇文章的使用,你可以使用进程管理工具,同时启动 Django 和 celery 的进程,https://tendcode.com/subject/article/django-celery/
    fcfangcc
        6
    fcfangcc  
       2024-06-06 17:34:43 +08:00
    因为命令行启动调用的不是 celery_app.worker_main ,是这个里面的方法 https://github.com/celery/celery/blob/main/celery/bin/worker.py#L298 ,我猜里面做了额外操作,可以参考他里面的逻辑
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