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使用redis作为调度中心的celery时启动多个queue,报错Probably the key ('_kombu.binding.reply.celery.pidbox') has been removed from the Redis database

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我今天在使用celery启动多个queue时遇到一个问题,当启动第二个queue是,第一个启动的queue日志报了下面一段错误

[2019-12-16 14:40:25,736: ERROR/MainProcess] Control command error: OperationalError("\nCannot route message for exchange ‘reply.celery.pidbox‘: Table empty or key no longer exists.\nProbably the key (‘_kombu.binding.reply.celery.pidbox‘) has been removed from the Redis database.\n")
Traceback (most recent call last):
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/connection.py", line 439, in _reraise_as_library_errors
    yield
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/connection.py", line 518, in _ensured
    return fun(*args, **kwargs)
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/messaging.py", line 203, in _publish
    mandatory=mandatory, immediate=immediate,
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/transport/virtual/base.py", line 605, in basic_publish
    message, exchange, routing_key, **kwargs
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/transport/virtual/exchange.py", line 70, in deliver
    for queue in _lookup(exchange, routing_key):
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/transport/redis.py", line 877, in _lookup
    exchange, redis_key))
kombu.exceptions.InconsistencyError: 
Cannot route message for exchange ‘reply.celery.pidbox‘: Table empty or key no longer exists.
Probably the key (‘_kombu.binding.reply.celery.pidbox‘) has been removed from the Redis database.


During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/celery/worker/pidbox.py", line 46, in on_message
    self.node.handle_message(body, message)
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/pidbox.py", line 145, in handle_message
    return self.dispatch(**body)
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/pidbox.py", line 115, in dispatch
    ticket=ticket)
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/pidbox.py", line 151, in reply
    serializer=self.mailbox.serializer)
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/pidbox.py", line 285, in _publish_reply
    **opts
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/messaging.py", line 181, in publish
    exchange_name, declare,
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/connection.py", line 551, in _ensured
    errback and errback(exc, 0)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/contextlib.py", line 130, in__exit__
    self.gen.throw(type, value, traceback)
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/connection.py", line 444, in _reraise_as_library_errors
    sys.exc_info()[2])
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/vine/five.py", line 194, in reraise
    raise value.with_traceback(tb)
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/connection.py", line 439, in _reraise_as_library_errors
    yield
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/connection.py", line 518, in _ensured
    return fun(*args, **kwargs)
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/messaging.py", line 203, in _publish
    mandatory=mandatory, immediate=immediate,
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/transport/virtual/base.py", line 605, in basic_publish
    message, exchange, routing_key, **kwargs
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/transport/virtual/exchange.py", line 70, in deliver
    for queue in _lookup(exchange, routing_key):
  File "/Users/asher/PycharmProjects/ops_release/venv/lib/python3.7/site-packages/kombu/transport/redis.py", line 877, in _lookup
    exchange, redis_key))
kombu.exceptions.OperationalError: 
Cannot route message for exchange ‘reply.celery.pidbox‘: Table empty or key no longer exists.
Probably the key (‘_kombu.binding.reply.celery.pidbox‘) has been removed from the Redis database.

经过多方查找,发现这个问题是kombu组件的一个bug,查了一下当前kombu版本发现版本是4.6.5,将版本回退到4.6.4,再启动这个问题就解决了,据说有人需要将版本降到4.6.3,但是我这边不用

 

_kombu.binding.reply.celery.pidbox') has been removed from the Redis database' ref='nofollow'>使用redis作为调度中心的celery时启动多个queue,报错Probably the key ('_kombu.binding.reply.celery.pidbox') has been removed from the Redis database

原文：https://www.cnblogs.com/gangdou/p/12069660.html

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