Oh, so without the need to put an IP floating between hosts. Good job, thanks for helping
Best Alessandro Il giorno 24/lug/2012, alle ore 17:49, Eugene Kirpichov ha scritto: > Hi Alessandro, > > My patch is about removing the need for pacemaker (and it's pacemaker > that I denoted with the term "TCP load balancer"). > > I didn't submit the patch yesterday because I underestimated the > effort to write unit tests for it and found a few issues on the way. I > hope I'll finish today. > > On Tue, Jul 24, 2012 at 12:00 AM, Alessandro Tagliapietra > <[email protected]> wrote: >> Sorry for the delay, i was out from work. >> Awesome work Eugene, I don't need the patch instantly as i'm still building >> the infrastructure. >> Will it will take alot of time to go in Ubuntu repositories? >> >> Why you said you need load balancing? You can use only the master node and >> in case the rabbitmq-server dies, switch the ip to the new master with >> pacemaker, that's how I would do. >> >> Best Regards >> >> Alessadro >> >> >> Il giorno 23/lug/2012, alle ore 21:49, Eugene Kirpichov ha scritto: >> >>> +openstack-dev@ >>> >>> To openstack-dev: this is a discussion of an upcoming patch about >>> native RabbitMQ H/A support in nova. I'll post the patch for >>> codereview today. >>> >>> On Mon, Jul 23, 2012 at 12:46 PM, Eugene Kirpichov <[email protected]> >>> wrote: >>>> Yup, that's basically the same thing that Jay suggested :) Obvious in >>>> retrospect... >>>> >>>> On Mon, Jul 23, 2012 at 12:42 PM, Oleg Gelbukh <[email protected]> >>>> wrote: >>>>> Eugene, >>>>> >>>>> I suggest just add option 'rabbit_servers' that will override >>>>> 'rabbit_host'/'rabbit_port' pair, if present. This won't break anything, >>>>> in >>>>> my understanding. >>>>> >>>>> -- >>>>> Best regards, >>>>> Oleg Gelbukh >>>>> Mirantis, Inc. >>>>> >>>>> >>>>> On Mon, Jul 23, 2012 at 10:58 PM, Eugene Kirpichov <[email protected]> >>>>> wrote: >>>>>> >>>>>> 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 <[email protected]> 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 : [email protected] >>>>>>> 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 : [email protected] >>>>>> Unsubscribe : https://launchpad.net/~openstack >>>>>> More help : https://help.launchpad.net/ListHelp >>>>> >>>>> >>>> >>>> >>>> >>>> -- >>>> Eugene Kirpichov >>>> http://www.linkedin.com/in/eugenekirpichov >>> >>> >>> >>> -- >>> Eugene Kirpichov >>> http://www.linkedin.com/in/eugenekirpichov >>> >>> _______________________________________________ >>> Mailing list: https://launchpad.net/~openstack >>> Post to : [email protected] >>> 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 : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
