[rabbitmq-discuss] RabbitMQ warrens

Jason J. W. Williams jasonjwwilliams at gmail.com
Tue Aug 9 23:12:18 BST 2011

Hi Joe,

Yes the queue mirroring that's coming soon in the enhanced HA will be
what you're looking for then. That will give you "message RAID 1"  (my
analogy not Rabbit's) inside the broker. As soon as it's released
we'll be updating the book with a section on it.


On Tue, Aug 9, 2011 at 4:09 PM, Joe Van Dyk <joevandyk at gmail.com> wrote:
> On Tue, Aug 9, 2011 at 3:02 PM, Jason J. W. Williams
> <jasonjwwilliams at gmail.com> wrote:
>> Hi Joe,
>>> I don't get how this prevents message loss.  If there's messages in
>>> the master's queue and it goes down (hard drive explodes), those
>>> messages are lost, right?
>> I'm the guy who wrote that. It guarantees messages won't be lost from
>> the point of view of the software. As is normal whether you're running
>> a database, mail server, or anything else, protect your hard drives
>> with RAID at the hardware level to keep from a single drive failure
>> causing message loss.
> Hm, ok.  I'm running on EC2 where instances can disappear instantly,
> so ideally stuff would be mirrored across multiple instances.  Perhaps
> the Active/Active HA stuff Alexis mentioned will help this.

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