Sorry for taking so long to get back, my answers inline<br><br><div class="gmail_quote">On Tue, Jul 5, 2011 at 5:26 PM, Matthias Radestock <span dir="ltr"><<a href="mailto:matthias@rabbitmq.com">matthias@rabbitmq.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Bryan,<br>
<br>
On 02/07/11 13:13, Matthias Radestock wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
It looks like the crash might be triggered by a rare race<br>
condition. [...] Nothing obvious jumps out at me from the<br>
code, so this may take a while to track down.<br>
</blockquote>
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As feared, a few hours of poking the code hasn't thrown up any dirt.<br>
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Do you still have the rabbit.log file from around the time of the crash? If so, please send it to us.<br></blockquote><div><br>Sorry I don't have this anymore.<br> <br></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
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Also, it would be useful to get some more details on how you are using rabbit...<br>
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How many queues are there? How much queue churn is there (i.e. queues being created and deleted)?<br></blockquote><div><br>There's about 3 durable queues. 0 churn<br> <br></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
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Do published messages only ever get routed to a single queue or can they get routed to multiple queues?<br></blockquote><div><br><br>Messages very often (>90%, estimate) get routed to multiple queues<br> <br></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
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How big are the messages?<br></blockquote><div><br>< 1k bytes<br> <br></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
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How long (#messages) are the queues, and how does that figure change over time?<br></blockquote><div><br>Consumers almost always keep up with load, so the queue size is usually 0, occasionally there will be spikes if we manually dump a lot of messages into the queue. Spikes in this sense is a few thousand messages, up to maybe 50,000 messages. Queues will gradually make their way back to 0 after a few minutes after these instances.<br>
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Regards,<br><font color="#888888">
<br>
Matthias.<br>
</font></blockquote></div><br><br clear="all"><br>-- <br>Bryan Alves<br>Software Engineer<br>Blue State Digital<br>