[Openstack-operators] anyone using RabbitMQ with active/active mirrored queues?

Chris Friesen chris.friesen at windriver.com
Thu Sep 11 20:32:16 UTC 2014

On 09/11/2014 01:50 PM, James Dempsey wrote:
> On 12/09/14 04:15, Chris Friesen wrote:
>> Hi,
>> The OpenStack high availability guide seems to be a bit ambiguous about
>> whether RabbitMQ should be configured active/standby or
>> active/active...both methods are described.
>> Has anyone tried using active/active with mirrored queues as recommended
>> by the RabbitMQ developers?  If so, what problems did you run into?
>> Thanks,
>> Chris
>> _______________________________________________
>> OpenStack-operators mailing list
>> OpenStack-operators at lists.openstack.org
>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
> Hi Chris,
> We do Active/Active RabbitMQ with mirrored queues and Precise/Havana.
> We faced a lot of failover problems where clients weren't figuring out
> that their connections were dead.  The TCP keepalives mentioned in the
> following bug seemed to help a lot.
> https://bugs.launchpad.net/nova/+bug/856764  The moral of our story is
> to make sure you are monitoring the sanity of your agents.

We had client-side issues on failovers as well.  Keepalives seemed to 
help, but we also ported the following patch to all the applicable 
clients (since they're not using oslo.messaging yet).



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