[rabbitmq-discuss] Messages that can never touch disk

Thu May 8 09:13:36 BST 2014

On Thu, May 8, 2014 at 3:46 AM, Simon MacMullen <simon at rabbitmq.com> wrote:

> On 08/05/2014 05:26, Garrett Johnson wrote:
>
>> Hello all — I have a question about making sure a message NEVER hits
>> disk. Assuming the messages are not published as persistent (duh) and we
>> cancel connections at a given memory threshold rather than paging to
>> disk, what else is there to keep in mind?
>>
>
> Assuming this is broker-wide, you would want to set
> vm_memory_high_watermark_paging_ratio to some large number. You should
> not need to cancel connections if you do that.

>
>  If it is even possible, can you still mirror the queues in a cluster?
>>
>
> HA is still fine; it's orthogonal to persistence.
>

Okay cool, even when a new node joins and has to sync?

>
> Cheers, Simon
>
>
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