[rabbitmq-discuss] rabbitmq memory usage

Matthias Radestock matthias at rabbitmq.com
Tue Feb 25 18:47:53 GMT 2014

On 25/02/14 18:41, thexray at gmail.com wrote:
> So the publishing rate drops to zero, because Erlang RAM usage goes over
> the limit of vm_memory_high_watermark (in my case, 3GB).


> Then my question is: is it normal that 100 million persisted messages
> use 3 GB of memory?

Did you see my answer here: 

> Shouldn't broker page them to disk and free memory?

It does, but some index information is always kept in memory, so there 
is a fixed per-message memory cost.


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