problem with amqp_simple_wait_frame call about rabbitmq-c

[alanxz]

What do you mean by "interchange is active"?

[stonemaster]

Hi,

I have a problem with a call to amqp_simple_wait_frame too, but as I don't really understand leonidas61 issue request, I am just posting the situation in my code base here:

• RabbitMQ messages are sent through a thread pool which internally sends messages to the rabbitmq server using your C++ wrapper. Sometimes it happens that the application doesn't quit because the thread pool hangs in a call to Channel::BasicPublish. This actually runs down to the code line CheckForError(amqp_simple_wait_frame(m_connection, &frame)); in ChannelImpl::GetNextFrameFromBroker.
• The stack trace looks like this:
  #0 0x0000000000f7fb0c in recv ()
  #1 0x0000000000ea7e59 in wait_frame_inner ()
  #2 0x0000000000ea7f64 in amqp_simple_wait_frame ()
  #3 0x0000000000de2fc4 in AmqpClient::Detail::ChannelImpl::GetNextFrameFromBroker (this=0x1323d6d0, frame=..., timeout=...) at SimpleAmqpClient/ChannelImpl.cpp:344
  #4 0x0000000000de3392 in AmqpClient::Detail::ChannelImpl::GetNextFrameFromBrokerOnChannel (this=0x1323d6d0, channel=2, frame_out=..., timeout=...)
  at /SimpleAmqpClient/ChannelImpl.cpp:358
  #5 0x0000000000ddf086 in GetMethodOnChannel<boost::array<unsigned int, 2ul> > (timeout=..., expected_responses=..., frame=..., channel=, this=)
  at /SimpleAmqpClient/ChannelImpl.h:106
  #6 GetMethodOnChannel<boost::array<unsigned int, 2ul> > (timeout=..., expected_responses=..., frame=..., channel=, this=0x1323d6d0)
  at /SimpleAmqpClient/Channel.cpp:287
  #7 AmqpClient::Channel::BasicPublish (this=0xc6ae2a0, exchange_name=..., routing_key=..., message=..., mandatory=, immediate=)
  at /SimpleAmqpClient/Channel.cpp:311
• It seems as if the connection died (which might be possible because the network in my case sometimes has some latency) and the recv call never returns actually blocking the thread pool and thus stopping the application from quitting.

I'm actually quite clueless right now so maybe you have an idea what might be causing this problems. If you need any more debug information just tell me.

Cheers,
André

[stonemaster]

I am sorry I think my last comment rather belonged into the issue list of your C++ wrapper.

[alanxz]

Could you post this as an issue in under SimpleAmqpClient?