We "own" the network in that it's a direct connection between two datacenters. It's not a particularly high speed connection, but it's generally reliable. I've done some ping tests between the two nodes and while an occasional packet will drop every once in awhile, it's not a really horrible connection. The average ping round trip time is areound 80ms.<br>
<br>I'd be surprised if it's a dropped packet, as the shutdown on both brokers seems to consistently take a long time. I just reproed this again, and one broker took 1000 seconds to shut down, while the other took 995. I have the logs from this repro, but a quick glance doesn't show anything radically different. Let me know if there's anything else I can supply.<br>
<br><br><br><div class="gmail_quote">On Thu, Sep 13, 2012 at 11:32 AM, Tim Watson <span dir="ltr"><<a href="mailto:tim@rabbitmq.com" target="_blank">tim@rabbitmq.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="im">On 13 Sep 2012, at 18:06, Matt Pietrek wrote:<br>
<br>
> > Is it a possibility that firewall/network configuration between the two nodes is causing packets to get dropped?<br>
><br>
> It seems unlikely. The two nodes are on opposite sides of the US, so there's some normal latency between them. However, the connections are generally reliable and I'm pumping many messages/second through the federation before shutting the brokers down. (Xref my other thread about extraneous federation exchange traffic.)<br>
><br>
<br>
</div>Hmn, I wonder if this is somehow linked to the 'leaky bindings' mentioned in that thread - I doubt it somehow. Are you in control of the network - can we be sure that packets aren't being dropped for some reason or another? As Simon intimated, the behaviour you're seeing appears to be client sockets hanging around during shutdown until a timeout is triggered. Perhaps we're not seeing the expected FIN - I'm attempting to reproduce this at the moment.<br>
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