FWIW, I run a pretty similar situation (2.8.6 on Ubuntu 10.04), with HA queues on 3 or 4 node clusters.<br><br>I habitually (many, many times / day) take nodes out of the cluster and have never seen the particular issue you're seeing, i.e slowness when communicating with the remaining node.<br>
<br>I have other issues with clustering, just not the slowness and crashes. I'm wondering if you have some sort of weird networking state when this happens. Just a guess though.<br><br><br><div class="gmail_quote">On Thu, Aug 30, 2012 at 7:08 AM, gerhard <span dir="ltr"><<a href="mailto:gerhard@lazu.co.uk" target="_blank">gerhard@lazu.co.uk</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Running a rabbitmq cluster makes rabbitmq extremely unstable. I have a very simple, 2 nodes setup (both disc) for HA purposes. The most important queues have the HA flag ensuring they get replicated on both nodes so that if one goes down, the clients can reconnect to the other one and continue consuming messages as if nothing happened. In theory, it sounds perfect, but in practice it's such a pain!<div>
<br></div><div>If one node goes down, the performance of the remaining node gets seriously affected. Everything slows down, on occasions the broker just crashes. Any rabbitmqctl commands on the remaing node take 30seconds+ if the node is relatively quiet. Resetting the cluster doesn't work without a force_reset, I keep getting the <b>no_running_cluster_nodes</b> error.</div>
<div><br></div><div>Is anyone else having the same issues with RabbitMQ clustering? As it stands, it's pretty unusable. I'm running <span style="color:rgb(72,72,72);font-family:Verdana,sans-serif;font-size:12px">RabbitMQ </span><b style="font-size:12px;font-family:Verdana,sans-serif;font-weight:normal">2.8.6</b><span style="color:rgb(72,72,72);font-family:Verdana,sans-serif;font-size:12px"> on Erlang </span><b style="font-size:12px;font-family:Verdana,sans-serif;font-weight:normal">R13B03 under Ubuntu 10.04.03 64bit, installed via the official </b><font color="#000000" face="Verdana, sans-serif"><span style="font-size:11.80555534362793px"><a href="http://www.rabbitmq.com/debian/dists/testing/" target="_blank">http://www.rabbitmq.com/debian/dists/testing/</a></span></font><b style="font-size:12px;font-family:Verdana,sans-serif;font-weight:normal"> packages.</b></div>
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