Hi Alex,<br>I ran the multicast client and am getting speeds like: <br><br>sending rate: 3550 msg/s, basic returns: 0 ret/s<br>recving rate: 3461 msg/s, min/avg/max latency: 11931197/12253891/12477030 microseconds<br><br>If I let it run for a bit then sometimes both the sending and receiving rate drop significantly e.g.:<br>
<br>sending rate: 638 msg/s, basic returns: 0 ret/s<br>recving rate: 628 msg/s, min/avg/max latency: 11788406/12363242/12735553 microseconds<br><br>Not sure if this drop is indicative of anything?<br><br>We're using the java client 1.8.1, the broker is rabbitmq_server-1.8.1<br>
<br>Thanks<br>Michael<br><br><div class="gmail_quote">On Fri, Sep 3, 2010 at 9:29 AM, Alexandru Scvorţov <span dir="ltr"><<a href="mailto:alexandru@rabbitmq.com">alexandru@rabbitmq.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Hi Michael,<br>
<div class="im"><br>
> We are putting a very low volume of messages through and have sometimes had<br>
> to wait up to 15 minutes for a single message to be delivered (at the time<br>
> this was the only message in the system).<br>
<br>
</div>That sounds strage. Are you up for a bit of debugging?<br>
<br>
Download the java client,<br>
<a href="http://www.rabbitmq.com/java-client.html" target="_blank">http://www.rabbitmq.com/java-client.html</a><br>
<br>
Unpack it, and run<br>
sh runjava.sh com.rabbitmq.examples.MulticastMain -x 1 -y 1<br>
<br>
That command will run one of our example programmes in a way that<br>
matches your setup: 1 producer (-x 1) and 1 consumer (-y 1).<br>
<br>
When I run it, I get speeds like:<br>
recving rate: 6052 msg/s, min/avg/max latency: 1063522/1118048/1164637 microseconds<br>
sending rate: 6419 msg/s, basic returns: 0 ret/s<br>
<br>
If you're getting similar speeds, there's probably something wrong with<br>
the consumers/producers. If not, it might be something to do with the<br>
server.<br>
<br>
Could you please try it?<br>
<br>
Also, which version the broker and which client are you using?<br>
<br>
Cheers,<br>
Alex<br>
<div><div></div><div class="h5"><br>
On Fri, Sep 03, 2010 at 09:03:25AM +0100, Michael Burns wrote:<br>
> Hi,<br>
><br>
> We're just starting out with RabbitMQ and have a very simple setup: one<br>
> queue, one producer doing a basicPublish and one consumer doing a<br>
> basicConsume using QueueingConsumer.<br>
><br>
> For the most part it works fine however at fairly regular intervals we are<br>
> finding that messages remain on the queue for a considerable period before<br>
> being delivered to the consumer.<br>
><br>
> We are putting a very low volume of messages through and have sometimes had<br>
> to wait up to 15 minutes for a single message to be delivered (at the time<br>
> this was the only message in the system).<br>
><br>
> In all cases the messages are eventually delivered.<br>
><br>
> I dont know where to start debugging this as there is nothing in the<br>
> RabbitMQ logs thats suggests something is going wrong - could anyone point<br>
> me in the right direction as to what may be causing this?<br>
><br>
> Many Thanks,<br>
> Michael<br>
<br>
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</blockquote></div><br>