Question

我将celery 4.2.0与Django一起使用，以在rabbitmq中计划新任务，并且在解析参数时随机失败。我的代码如下：

for param in serializer.validated_data['parameters']:
        run_task.delay(param_name=param)

其中参数是int的列表，并通过序列化程序验证来确保。

@shared_task
def run_task(param_name: int) -> None:
    obj= Obj.objects.filter(param=param_name)
    ...

在UT下，当我用run_task调用此CELERY_TASK_ALWAYS_EAGER=True时，一切正常。在实际环境中，此任务有时可以正常运行，有时会因服务器错误而失败：

    File "/usr/lib/python3.6/site-packages/rest_framework/decorators.py", line 53, in handler
    return func(*args, **kwargs)
  File "/opt/app/compliance/jobs/views.py", line 30, in create_task
    run_task.delay(param_name=param)
  File "/usr/lib/python3.6/site-packages/celery/app/task.py", line 408, in delay
    return self.apply_async(args, kwargs)
  File "/usr/lib/python3.6/site-packages/celery/app/task.py", line 535, in apply_async
    **options
  File "/usr/lib/python3.6/site-packages/celery/app/base.py", line 741, in send_task
    with self.producer_or_acquire(producer) as P:
  File "/usr/lib/python3.6/site-packages/celery/app/base.py", line 876, in producer_or_acquire
    producer, self.producer_pool.acquire, block=True,
  File "/usr/lib/python3.6/site-packages/celery/app/base.py", line 1246, in producer_pool
    return self.amqp.producer_pool
  File "/usr/lib/python3.6/site-packages/celery/app/amqp.py", line 612, in producer_pool
    self.app.connection_for_write()]
  File "/usr/lib/python3.6/site-packages/kombu/utils/collections.py", line 34, in __getitem__
    h = eqhash(key)
  File "/usr/lib/python3.6/site-packages/kombu/utils/collections.py", line 25, in eqhash
    return o.__eqhash__()
  File "/usr/lib/python3.6/site-packages/kombu/connection.py", line 629, in __eqhash__
    repr(self.transport_options))
  File "/usr/lib/python3.6/site-packages/kombu/utils/collections.py", line 16, in __init__
    self.hashvalue = hash(seq)
TypeError: unhashable type: 'set'

我理解错误本身，但是当我仅传递一个简单且可分析的参数（未设置）时，错误会在这里出现。有谁知道如何使其持久地工作？
谢谢！

Celery shared_task参数解析错误

0 个答案: