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On 06/06/12 07:59, Tim Watson wrote:
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On 05/06/12 21:24, Walter Moore wrote:
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<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have a long running, durable,
non-auto-delete, non-exclusive, RabbitMq consumer (.Net
client) that works perfectly unless a 15 minute (+-
approximately 3 seconds) period of inactivity occurs. After
15 minutes of messaging inactivity a
“System.IO.EndOfStreamException: SharedQueue closed”
exception is thrown (and continues to be thrown for each
subsequent call to <model>.BasicConsume()). Is this
the expected behavior? I am using NoAck = true for each
dequeue..<o:p></o:p></p>
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Hi Walter,<br>
<br>
When you say 'non-auto-delete' do you mean to say there is not TTL
specified on the messages? <br>
I also wondered if you have AMQP heartbeats enabled - see <a
moz-do-not-send="true" class="moz-txt-link-freetext"
href="http://lists.rabbitmq.com/pipermail/rabbitmq-discuss/2012-May/020236.html">http://lists.rabbitmq.com/pipermail/rabbitmq-discuss/2012-May/020236.html</a>
for a discussion of this - as that could cause a connection to be
terminated after a specified period of inactivity. <br>
<br>
</blockquote>
Looking further at the client code, I can see that the heartbeat is
implemented on the client as well as the server. If this times out,
we do indeed get an EndOfStreamException (with a message like
"Heartbeat missing with heartbeat == <n> seconds") - see
<a class="moz-txt-link-freetext" href="http://hg.rabbitmq.com/rabbitmq-dotnet-client/file/default/projects/client/RabbitMQ.Client/src/client/impl/ConnectionBase.cs#l541">http://hg.rabbitmq.com/rabbitmq-dotnet-client/file/default/projects/client/RabbitMQ.Client/src/client/impl/ConnectionBase.cs#l541</a>
for the details.<br>
<br>
Looking at the SharedQueue class, I can see that once closed, it
will continuously throw this exception whenever you try to dequeue.
So this looks like a possible cause to me. Can you verify whether or
not you've got AMQP heartbeat timeouts enabled?<br>
<br>
Cheers,<br>
Tim<br>
<br>
<blockquote cite="mid:4FCEFFED.8030805@rabbitmq.com" type="cite">
I'll have a look in the .NET client code, as this doesn't seem
like the exception class I'd expect to be thrown in a heartbeat
timeout situation, but I thought it was worth mentioning just in
case.<br>
<br>
If possible, can you tell us exactly (scratching any private data
such as the broker, queue and/or exchange names of course) what
parameters you're passing to declare the queue and exchange(s) as
well as the consumer set up? <br>
<br>
Cheers,<br>
Tim<br>
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<p class="MsoNormal">Thank you, <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="color:#1F497D"><img
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alt="Description: Description: Description:
INTLFCStone" height="60" width="228"><o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="color:#1F497D"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="color:#1F497D">Walter
Moore<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="color:#1F497D">Head of
Transactional Data Exchange<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">INTL FCStone
Inc<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">230 S.
LaSalle Street<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Suite 10-500<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Chicago IL
60604<o:p></o:p></span></p>
<p class="MsoNormal"><b><span
style="font-size:12.0pt;color:#1F497D">Direct
312-789-2538<o:p></o:p></span></b></p>
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