kombu / librabbitmq：ConnectionError：无法恢复频道

Question

1. 我正在使用producer池组向rabbitmq发布消息，但发布调用失败并出现以下错误：

    File "pubsub.py", line 314, in _publish
        producer.publish(message, exchange=exchange, routing_key=topic)
    File "/opt/ENV/local/lib/python2.7/site-packages/kombu/messaging.py", line 172, in publish routing_key, 
        mandatory, immediate, exchange, declare)
    File "/opt/ENV/local/lib/python2.7/site-packages/kombu/messaging.py", line 188, in _publish 
        mandatory=mandatory, immediate=immediate,
    File "/opt/local/lib/python2.7/site-packages/librabbitmq/__init__.py", line 117, in basic_publish
    mandatory or False, immediate or False,
    ConnectionError: Couldn't revive channel

1. 奇怪的是，我收到此错误的此消息之前的消息未到达消费者端。我在Connection对象上使用transport_options = {＆＃39; confirm_publish＆＃39;：True}，它传递给生产者池。

2. Rabbitmq服务器支持AWS上的ELB。

关于上述错误以及为什么邮件可能会丢失的任何想法？

感谢。