[rabbitmq-discuss] RabbitMq not honouring high_watermark setting?

Dan Barua danbarua at gmail.com
Wed Jul 13 13:11:30 BST 2011

Aaaah yes cheers Emile - the Erlang 32-bit limit slipped my mind there.
On Jul 13, 2011 1:04 PM, "Emile Joubert" <emile at rabbitmq.com> wrote:
> On 13/07/11 12:55, Dan B wrote:
>> I should have RTFM a bit more thoroughly.
>>>> Thus when RabbitMQ can't recognize your platform, if you actually have
>>>> installed and you want RabbitMQ to throttle producers when the server
is using
>>>> above 3GB, set vm_memory_high_watermark to 3
>> On my server, vm_memory_high_watermark = n results in a watermark of
>> 2n for some reason. I've set it to 1.5 (3gb), I'm not sure if Rabbit
>> can access all of that though, probably not.
> You are certain to run out of memory at some point if you do that.
> Unfortunately the Windows Erlang VM is 32bit and limited to 2Gb. Some
> versions of Windows support an alternative memory model that may allow a
> suitably patched Erlang VM access to slightly more memory, but I don't
> know of anyone succeeding in making it work:
> http://support.microsoft.com/default.aspx?scid=kb%3BEN-US%3B297812
> -Emile
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.rabbitmq.com/pipermail/rabbitmq-discuss/attachments/20110713/08b1ff6f/attachment.htm>

More information about the rabbitmq-discuss mailing list