<html><head></head><body>We are not using kolla on our side, sorry<br><br><div class="gmail_quote">Le 18 juin 2023 04:04:39 GMT+02:00, Satish Patel <satish.txt@gmail.com> a écrit :<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div dir="ltr">Great! This is good to know that Quorum is a good solution. <div><br></div><div>Do you have a config to enable in kolla-ansible deployment?</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jun 15, 2023 at 5:43 AM Arnaud Morin <<a href="mailto:arnaud.morin@gmail.com">arnaud.morin@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hey,<br>
<br>
We are also using quorum in some regions and plan to enable quorum<br>
everwhere.<br>
<br>
Note that we also manage to enable quorum for transient queues (using a<br>
custom patch as it's not doable with current oslo.messaging, see my<br>
request in [1]).<br>
We also introduced some custom changes in py-amqp to handle correctly<br>
the rabbit disconnections (see [2] and [3]).<br>
<br>
So far, the real improvment is achieved thanks to the combination of all<br>
of these changes, enabling quorum queue only was not enough for us to<br>
notice any improvment.<br>
<br>
The downside of quorum queues is that it consume more power on the<br>
rabbit cluster: you need more IO, CPU, RAM and network bandwith for the<br>
same number of queues (see [4]).<br>
It has to be taken into account.<br>
<br>
Cheers,<br>
Arnaud.<br>
<br>
[1] <a href="https://lists.openstack.org/pipermail/openstack-discuss/2023-April/033343.html" rel="noreferrer" target="_blank">https://lists.openstack.org/pipermail/openstack-discuss/2023-April/033343.html</a><br>
[2] <a href="https://github.com/celery/py-amqp/pull/410" rel="noreferrer" target="_blank">https://github.com/celery/py-amqp/pull/410</a><br>
[3] <a href="https://github.com/celery/py-amqp/pull/405" rel="noreferrer" target="_blank">https://github.com/celery/py-amqp/pull/405</a><br>
[4] <a href="https://plik.ovh/file/nHCny7psDCTrEm76/Pq9ASO9wUd8HRk4C/s_1686817000.png" rel="noreferrer" target="_blank">https://plik.ovh/file/nHCny7psDCTrEm76/Pq9ASO9wUd8HRk4C/s_1686817000.png</a><br>
<br>
<br>
<br>
On 13.06.23 - 09:14, Sa Pham wrote:<br>
> Dear Khôi,<br>
> <br>
> Thanks for your reply.<br>
> <br>
> <br>
> <br>
> On Tue, Jun 13, 2023 at 9:05 AM Nguyễn Hữu Khôi <<a href="mailto:nguyenhuukhoinw@gmail.com" target="_blank">nguyenhuukhoinw@gmail.com</a>><br>
> wrote:<br>
> <br>
> > Hello.<br>
> > Firstly, when I used the classic queue and sometimes, my rabbitmq cluster<br>
> > was broken, the computers showed state down and I needed to restart the<br>
> > computer service to make it up. Secondly, 1 of 3 controller is down but my<br>
> > system still works although it is not very first as fully controller. I ran<br>
> > it for about 3 months compared with classic. My openstack is Yoga and use<br>
> > Kolla-Ansible as a deployment tool,<br>
> > Nguyen Huu Khoi<br>
> ><br>
> ><br>
> > On Tue, Jun 13, 2023 at 8:43 AM Sa Pham <<a href="mailto:saphi070@gmail.com" target="_blank">saphi070@gmail.com</a>> wrote:<br>
> ><br>
> >> Hi Khôi,<br>
> >><br>
> >> Why do you say using the quorum queue is more stable than the classic<br>
> >> queue ?<br>
> >><br>
> >> Thanks,<br>
> >><br>
> >><br>
> >><br>
> >> On Tue, Jun 13, 2023 at 7:26 AM Nguyễn Hữu Khôi <<br>
> >> <a href="mailto:nguyenhuukhoinw@gmail.com" target="_blank">nguyenhuukhoinw@gmail.com</a>> wrote:<br>
> >><br>
> >>> Hello Huettner,<br>
> >>> I have used the quorum queue since March and it is ok until now. It<br>
> >>> looks more stable than the classic queue. Some feedback to you.<br>
> >>> Thank you.<br>
> >>> Nguyen Huu Khoi.<br>
> >>><br>
> >>><br>
> >>><br>
> >>> On Mon, May 8, 2023 at 1:14 PM Felix Hüttner <felix.huettner@mail.schwarz><br>
> >>> wrote:<br>
> >>><br>
> >>>> Hi Nguyen,<br>
> >>>><br>
> >>>><br>
> >>>><br>
> >>>> we are using quorum queues for one of our deployments. So fare we did<br>
> >>>> not have any issue with them. They also seem to survive restarts without<br>
> >>>> issues (however reply queues are still broken afterwards in a small amount<br>
> >>>> of cases, but they are no quorum/mirrored queues anyway).<br>
> >>>><br>
> >>>><br>
> >>>><br>
> >>>> So I would recommend them for everyone that creates a new cluster.<br>
> >>>><br>
> >>>><br>
> >>>><br>
> >>>> --<br>
> >>>><br>
> >>>> Felix Huettner<br>
> >>>><br>
> >>>><br>
> >>>><br>
> >>>> *From:* Nguyễn Hữu Khôi <<a href="mailto:nguyenhuukhoinw@gmail.com" target="_blank">nguyenhuukhoinw@gmail.com</a>><br>
> >>>> *Sent:* Saturday, May 6, 2023 4:29 AM<br>
> >>>> *To:* OpenStack Discuss <<a href="mailto:openstack-discuss@lists.openstack.org" target="_blank">openstack-discuss@lists.openstack.org</a>><br>
> >>>> *Subject:* [OPENSTACK][rabbitmq] using quorum queues<br>
> >>>><br>
> >>>><br>
> >>>><br>
> >>>> Hello guys.<br>
> >>>><br>
> >>>> IS there any guy who uses the quorum queue for openstack? Could you<br>
> >>>> give some feedback to compare with classic queue?<br>
> >>>><br>
> >>>> Thank you.<br>
> >>>><br>
> >>>> Nguyen Huu Khoi<br>
> >>>><br>
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> >>>><br>
> >>><br>
> >><br>
> >> --<br>
> >> Sa Pham Dang<br>
> >> Skype: great_bn<br>
> >> Phone/Telegram: 0986.849.582<br>
> >><br>
> >><br>
> >><br>
> <br>
> -- <br>
> Sa Pham Dang<br>
> Skype: great_bn<br>
> Phone/Telegram: 0986.849.582<br>
<br>
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