[rabbitmq-discuss] Set 21673 memory limit

Sat Feb 27 21:16:35 GMT 2010

Tsuraan,

tsuraan wrote:
>> vm_memory_high_watermark. See http://www.rabbitmq.com/extensions.html#memsup
> 
> I don't think this is what I'm looking for.  I remember seeing some
> argument for the disk-based queues that will limit how many messages
> rabbit actually keeps in RAM, where the rest of the messages are
> stored on disk.  So I'm not thinking of how to trigger the
> channel.flow command, but rather how to control the size of the RAM
> cache of messages.

The above parameter sets an overall memory limit. The memory available 
to queues is dynamically adjusted to keep within that overall limit.

Early versions of the persister had different controls, so perhaps 
that's what you remember.

Regards,

Matthias.