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Posted to users@qpid.apache.org by "634749030@qq.com" <63...@qq.com> on 2016/09/20 08:04:48 UTC
async send message blocked forever
HI:
I user the c++ broker(verison 0.34) and the c++ API on windows,but I
found the send() function of sender maybe blocked forever, I did not start
the flow stop,and send message async;
example code:
Sender sender = session.createSender(address);
sender.setCapacity(1000);
while(true)
{
sender.send(msg,false);
}
the stack describe in the picture;
<http://qpid.2158936.n2.nabble.com/file/n7650922/stack.png>
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Re: async send message blocked forever
Posted by Gordon Sim <gs...@redhat.com>.
On 20/09/16 09:39, 634749030@qq.com wrote:
> thanks!
> the message is not large, the depth of the queue information flowed:
> <http://qpid.2158936.n2.nabble.com/file/n7650926/queue.png>
The stack trace looks like the sender is waiting for confirmation of
previously sent messages. As the broker is not in flow control, I'm not
sure why it is not getting the confirmations. You could try getting a
protocol trace e.g. QPID_LOG_ENABLE=trace+:Network. Can you reproduce a
similar issue using qpid-send?
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Re: async send message blocked forever
Posted by "634749030@qq.com" <63...@qq.com>.
Is any information useful? Look forward to your reply，thanks！
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Re: async send message blocked forever
Posted by "634749030@qq.com" <63...@qq.com>.
thanks!
the message is not large, the depth of the queue information flowed:
<http://qpid.2158936.n2.nabble.com/file/n7650926/queue.png>
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Re: async send message blocked forever
Posted by Gordon Sim <gs...@redhat.com>.
On 20/09/16 09:04, 634749030@qq.com wrote:
> HI:
> I user the c++ broker(verison 0.34) and the c++ API on windows,but I
> found the send() function of sender maybe blocked forever, I did not start
> the flow stop,and send message async;
> example code:
> Sender sender = session.createSender(address);
> sender.setCapacity(1000);
> while(true)
> {
> sender.send(msg,false);
> }
>
> the stack describe in the picture;
> <http://qpid.2158936.n2.nabble.com/file/n7650922/stack.png>
>
What is the depth of the queue you are sending to? If it is large, you
may be flow controlled. If that is the case you can alter the settings
to avoid, or postpone, the flow control if desired.
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