<br><br><div class="gmail_quote">On 19 July 2012 20:41, Matthias Radestock <span dir="ltr"><<a href="mailto:matthias@rabbitmq.com" target="_blank">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">
David,<div class="im"><br>
<br>
On 18/07/12 01:56, David Gillies wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I've posted up the logs from the downstream server from around the time<br>
that one of the upstream servers lose connectivity and the downstream<br>
server is never able to connect again here:<br>
<a href="https://gist.github.com/85da45443b92e69e29a0" target="_blank">https://gist.github.com/<u></u>85da45443b92e69e29a0</a><br>
</blockquote>
<br></div>
Please use the correct terminology, it gets really confusing otherwise. In federation, messages flow from the upstream to the downstream (makes sense, doesn't it?), and connections are established from the downstream to the upstream.<br>
<br>
Anyway, There is nothing unusual in the logs...the downstreams (using the correct terminology) lose connectivity and try to re-establish it. They *should* keep trying indefinitely. Is there any evidence that they don't?<br>
</blockquote><div><br>After leaving the downstream servers to (supposedly) reconnect for hours (I think the longest I've left them is approximately 36 hours without intervention) I see no messages leaving the upstream queue and eventually the filesystem fills up from queue banking up (I've set a TTL on the queue for now but I'd rather not have to do that).<br>
�<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
There is nothing special about the way federation establishes connections, so if at some point you think that a downstream should be able to connect to the upstream but doesn't, then run an ordinary amqp client on the downstream machine and see whether it can connect to the upstream.<br>
</blockquote><div><br>I've been doing exactly that and I've had no issues with connecting to the upstream using an amqp client.<br></div></div><br><br>-- <br><div><span style="font-family:arial,sans-serif"><font size="1">David Gillies</font></span></div>
<div><font face="arial, helvetica, sans-serif" color="#999999" size="1">Senior Systems Engineer, Brandscreen</font></div>
<div><div><font face="arial, helvetica, sans-serif" color="#999999" size="1"><a href="mailto:dgillies@brandscreen.com" target="_blank">dgillies@brandscreen.com</a></font></div></div><div><font face="arial, helvetica, sans-serif" color="#999999" size="1"><br>
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