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I have an application that is pushing data into RabbitMQ and then some other apps are subscribing to the different exchanges.

But recently, I keep having errors like this after a few hours:

2020-07-09 12:45:12.670 [error] <0.23578.1> Error on AMQP connection <0.23578.1> (172.18.0.5:48230 ->
172.18.0.3:5672, vhost: '/', user: 'guest', state: running), channel 6:                                                                                 
operation basic.publish caused a connection exception unexpected_frame:
 "expected content header for class 60, got non content"
2020-07-09 12:45:12.674 [info] <0.23578.1> closing AMQP connection <0.23578.1> (172.18.0.5:48230 ->
 172.18.0.3:5672, vhost: '/'

On the client side, I get messages like this:

"Already closed: The AMQP operation was interrupted: AMQP close-reason, initiated by Peer,
code=505, text='UNEXPECTED_FRAME - expected content body, got non content body frame instead',
classId=60, methodId=40"

This is on a docker container.

What could this error be about?

Thomas
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1 Answers1

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You are sharing a channel for concurrent publishing, use below code

 lock (ch) {  ch.BasicPublish();  }
omid esmaili
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  • can you explain the difference? – Thomas Sep 20 '20 at 11:59
  • @Thomas did this solve your problem? I'm stumbling across the same error message when using this library with C++ Qt despite using a QMutex to lock the bit of code that publishes. If you have some tips and could provide them I'd very much appreciate it. – Spray'n'Pray Jul 20 '21 at 11:59
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    @Spray'n'Pray, I haven't had a chance to sort this out. We've scaled up and started to use AWS services directly instead of running out own. – Thomas Jul 20 '21 at 14:53