Open Stack

Sorry for my question, I have just seen from the original thread that
we are talking about HA with Active/Active solution.
--
Andrea Rosa

>-----Original Message-----
>From: Rosa, Andrea (HP Cloud Services)
>Sent: 25 July 2012 10:45
>To: Eugene Kirpichov
>Cc: openstack-dev at lists.openstack.org; Alessandro Tagliapietra;
>openstack at lists.launchpad.net
>Subject: Re: [openstack-dev] [Openstack] High Available queues in
>rabbitmq
>
>Hi
>
>Your patch doesn't use a Resource manager, so are you working on an
>Active/Active
>configuration using mirrored queues? Or are you working on a cluster
>configuration?
>
>I am really interested in that change, thanks for your help.
>Regards
>--
>Andrea Rosa
>
>>-----Original Message-----
>>From: openstack-bounces+andrea.rosa=hp.com at lists.launchpad.net
>>[mailto:openstack-bounces+andrea.rosa=hp.com at lists.launchpad.net] On
>>Behalf Of Alessandro Tagliapietra
>>Sent: 24 July 2012 17:58
>>To: Eugene Kirpichov
>>Cc: openstack-dev at lists.openstack.org; openstack at lists.launchpad.net
>>Subject: Re: [Openstack] High Available queues in rabbitmq
>>
>>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
>>> <tagliapietra.alessandro at gmail.com> 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
>><ekirpichov at gmail.com> 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
>><ogelbukh at mirantis.com> 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
>><ekirpichov at gmail.com>
>>>>>>> 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 <jaypipes at 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 at 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 at lists.launchpad.net
>>>>>>>> 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     : openstack at lists.launchpad.net
>>>>> Unsubscribe : https://launchpad.net/~openstack
>>>>> More help   : https://help.launchpad.net/ListHelp
>>>>
>>>
>>>
>>>
>>> --
>>> Eugene Kirpichov
>>> http://www.linkedin.com/in/eugenekirpichov
>>
>>
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