[rabbitmq-discuss] RabbitMQ connections blocked and not receiving simple messages

Mon Jun 11 19:51:33 BST 2012

Renne,

On 11/06/12 19:31, Renne Rocha wrote:
>    It seems odd to have disk space or memory problems, since I am trying
> to use a very simple example :-)

Rabbit doesn't know that ;) and thus has to assume the worst, namely 
that you are about to bombard it with a vast volume of message.

>    Reading the docs (http://www.rabbitmq.com/memory.html#diskfreesup) I
> found that the default value is 1.0 times the amount of total RAM is
> required to be free on the Mnesia partition. But how do I know what is
> the suitable value to be set? Is there any rule? Or should I
> try-and-error until my system works fine?

Well, 1.0xRAM is a suitable value, which is why it's the default ;)

You have 16GB of memory but just 2GB of free disk space. If you really 
must get rabbit working in such a constrained environment, then set the 
limit to a very low number. But be advised that any use of persistent 
messages or paging is going to exhaust disk space pretty quickly and may 
result in rabbit crashing.

Regards,

Matthias.