我使用的是芹菜5.0.1，使用CELERY_BACKEND_URL作为redis://:password@redisinstance1:6379/0。它工作得很好，但当Redis实例连接松散时，它会中断任务并出错。
Exception: Error while reading from socket: (104, 'Connection reset by peer')
Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/redis/connection.py", line 198, in _read_from_socket
data = recv(self._sock, socket_read_size)
File "/usr/local/lib/python3.7/dist-packages/redis/_compat.py", line 72, in recv
return sock.recv(*args, **kwargs)
ConnectionResetError: [Errno 104] Connection reset by peer
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/celery/app/trace.py", line 477, in trace_task
uuid, retval, task_request, publish_result,
File "/usr/local/lib/python3.7/dist-packages/celery/backends/base.py", line 154, in mark_as_done
self.store_result(task_id, result, state, request=request)
File "/usr/local/lib/python3.7/dist-packages/celery/backends/base.py", line 439, in store_result
request=request, **kwargs)
File "/usr/local/lib/python3.7/dist-packages/celery/backends/base.py", line 855, in _store_result
current_meta = self._get_task_meta_for(task_id)
File "/usr/local/lib/python3.7/dist-packages/celery/backends/base.py", line 873, in _get_task_meta_for
meta = self.get(self.get_key_for_task(task_id))
File "/usr/local/lib/python3.7/dist-packages/celery/backends/redis.py", line 346, in get
return self.client.get(key)
File "/usr/local/lib/python3.7/dist-packages/redis/client.py", line 1606, in get
return self.execute_command('GET', name)
File "/usr/local/lib/python3.7/dist-packages/redis/client.py", line 901, in execute_command
return self.parse_response(conn, command_name, **options)
File "/usr/local/lib/python3.7/dist-packages/redis/client.py", line 915, in parse_response
response = connection.read_response()
File "/usr/local/lib/python3.7/dist-packages/redis/connection.py", line 739, in read_response
response = self._parser.read_response()
File "/usr/local/lib/python3.7/dist-packages/redis/connection.py", line 324, in read_response
raw = self._buffer.readline()
File "/usr/local/lib/python3.7/dist-packages/redis/connection.py", line 256, in readline
self._read_from_socket()
File "/usr/local/lib/python3.7/dist-packages/redis/connection.py", line 223, in _read_from_socket
(ex.args,))
redis.exceptions.ConnectionError: Error while reading from socket: (104, 'Connection reset by peer')
Celery worker: None
Celery task id: 244b56af-7c96-56cf-a01a-9256cfd98ade
Celery retry attempt: 0
Task args: []
Task kwargs: {'address': 'ipadd', 'uid': 'uid', 'hexID': 'hexID', 'taskID': '244b56af-7c96-56cf-a01a-9256cfd98ade'}
当我运行第二个任务时，它运行良好，在短时间内连接出现了一些故障。
我可以设置一些东西吗？当芹菜试图将结果更新到Redis时，如果它返回错误，它将在2-5秒后重试？
我知道如何在任务中设置重试，但这不会导致任务失败。我的任务运行良好，它会返回数据，但芹菜在更新到后端时正在失去连接。
要处理连接超时，您可以在Celery配置中使用以下内容：
app.conf.broker_transport_options = {
'retry_policy': {
'timeout': 5.0
}
}
app.conf.result_backend_transport_options = {
'retry_policy': {
'timeout': 5.0
}
}
您可能需要考虑在配置中使用其他Redis后端设置，例如redis_retry_on_timeout。