Hi, I'm working on a RabbitMQ H/A patch right now.
It actually involves more than just using H/A queues (unless you're willing to add a TCP load balancer on top of your RMQ cluster). You also need to add support for multiple RabbitMQ's directly to nova. This is not hard at all, and I have the patch ready and tested in production. Alessandro, if you need this urgently, I can send you the patch right now before the discussion codereview for inclusion in core nova. The only problem is, it breaks backward compatibility a bit: my patch assumes you have a flag "rabbit_addresses" which should look like "rmq-host1:5672,rmq-host2:5672" instead of the prior rabbit_host and rabbit_port flags. Guys, can you advise on a way to do this without being ugly and without breaking compatibility? Maybe have "rabbit_host", "rabbit_port" be ListOpt's? But that sounds weird, as their names are in singular. Maybe have "rabbit_host", "rabbit_port" and also "rabbit_host2", "rabbit_port2" (assuming we only have clusters of 2 nodes)? Something else? On Mon, Jul 23, 2012 at 11:27 AM, Jay Pipes <jaypi...@gmail.com> wrote: > On 07/23/2012 09:02 AM, Alessandro Tagliapietra wrote: >> Hi guys, >> >> just an idea, i'm deploying Openstack trying to make it HA. >> The missing thing is rabbitmq, which can be easily started in >> active/active mode, but it needs to declare the queues adding an >> x-ha-policy entry. >> http://www.rabbitmq.com/ha.html >> It would be nice to add a config entry to be able to declare the queues >> in that way. >> If someone know where to edit the openstack code, else i'll try to do >> that in the next weeks maybe. > > https://github.com/openstack/openstack-common/blob/master/openstack/common/rpc/impl_kombu.py > > You'll need to add the config options there and the queue is declared > here with the options supplied to the ConsumerBase constructor: > > https://github.com/openstack/openstack-common/blob/master/openstack/common/rpc/impl_kombu.py#L114 > > Best, > -jay > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : openstack@lists.launchpad.net > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp -- Eugene Kirpichov http://www.linkedin.com/in/eugenekirpichov _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp