Hello all, On Tue, May 30, 2023 at 5:16 PM Felix Huettner <felix.huettner@mail.schwarz> wrote: > > Hi Dumitru, > > On Fri, May 26, 2023 at 01:30:54PM +0200, Dumitru Ceara wrote: > > On 5/24/23 09:37, Felix Huettner wrote: > > > Hi everyone, > > > > Hi Felix, > > > > > > > > Ilya mentioned to me that you will want to bring openstack examples to > > > ovn-heater. > > > > > > > Yes, we're discussing that. > > > > > I wanted to ask how to best join this effort. It would be great for us > > > > Everyone is welcome to contribute! :) > > > > Great, we will try that out.
Thank you for your interest in this effort, as promised I'm in the process of organizing a community meeting to get this going. Below are some proposals for dates and times, please respond with a prioritized list of what works best for you and we'll try to land on a single date/time for a first meeting: Wednesday July 5th 13:00 UTC Tuesday July 11th 13:30 UTC Wednesday July 12th 8:30 UTC > > > to have a tool to scale test ovn. Also we have an ovn deployment with > > > currently 450 compute nodes where we can try to extract the typically > > > used northbound entries from. > > > > > > > This is great! I'm not an OpenStack user so I'm probably not using the > > right terminology and I might be missing things but I think we're > > interested in: > > - how many tenant networks do you have in the cluster > > - for each tenant network: > > - how many VMs (on average but maybe also min/max/etc) > > - how many floating IPs (dnat-and-snat) > > - how many compute nodes run VMs from this network > > - for each compute: > > - how many VMs run on it (on average but also min/max/etc) > > > > Ok, so i'll try to give an overview below. > If you need any more detail just ask. > > General amount of nodes: > * ~500 Hypervisors > * 9 Nodes that are just serve as gateway chassis (connected to 4 > different external networks) > > Amount of tenant Networks (== logical routers): 2300 (only 1400 are > actually hosting VMs). > > Amount of logical Routers: 2010 (2000 of these have a chassisredirect > port that is hosted on one of the 9 nodes. > > * Amount of VMs: > * min: 1 > * max: 300 > * avg: 4.5 > * 630 networks only have a single VM, 230 have two VMs and 190 have 3 > VMs. > * Amount of Hypervisors per network: > * min: 1 > * max: 90 > * avg: 3.6 > * 650 networks only strech on a single hypervisor, 250 on two > hypervisors, 180 on three hypervisors > > Regarding floating ips we have currently 1530. I'll give you the amount > per Logical router: > * min: 1 > * max: 230 > * avg: 2.7 > * 430 routers have a single floating ip, 140 routers have 2 floating > ips. > > Regarding VMs per Hypervisor we have: > * min: 1 > * max: 80 > * avg: 15 > > > Other potentially interesting values: > > * Amount of Load_Balancer: 0 > * Amount of Logical_Switch_Port type=virtual: 800 > * Amount of Port_Group: 6000 > * Amount of ACL: 35500 > * All of these referce portgroups in `match` using `@` or `$` > * Referencing other portgroups using `$`: 8300 Thanks alot for providing this information, and gauging the size of your deployment, your inputs would be very valuable in this effort. One of the main goals of ovn-heater is the ability to simulate workloads, because as developers, we seldom have access to actual 500- or 1000- node clusters. Having a participant in the project with actual hardware installation of such a size would give us the opportunity to help confirm the accuracy of our simulations. -- Frode Nordahl > Regards > Felix > > > Mayba Frode and Daniel can expand on this. > > > > Regards, > > Dumitru > > > > > Thanks > > > Felix > > > > > > On Tue, May 16, 2023 at 05:38:25PM +0200, Daniel Alvarez Sanchez wrote: > > >> Hey Frode, Dumitru, thanks a lot for initiating this > > >> > > >> On Thu, May 11, 2023 at 6:05 PM Frode Nordahl > > >> <frode.nord...@canonical.com> > > >> wrote: > > >> > > >>> Hello, Dumitru, Daniel and team, > > >>> > > >>> On Thu, May 11, 2023 at 5:23 PM Dumitru Ceara <dce...@redhat.com> wrote: > > >>>> > > >>>> Hi Frode, > > >>>> > > >>>> During an internal discussion with RedHat OpenStack folks (Daniel in > > >>>> cc) > > >>>> about scalability of OVN in OpenStack deployments I remembered that you > > >>>> mentioned that you're thinking of enhancing ovn-heater in order to test > > >>>> your types of deployments [0]. I assumed that those are also OpenStack > > >>>> based deployments so I was wondering if there's an opportunity for > > >>>> collaboration here. > > >>> > > >>> Thank you for reaching out to me on this topic. We do indeed have scale > > >>> testing in the context of OpenStack on our roadmap and welcome the > > >>> invitation to collaborate on this. > > >>> > > >>> As you know we did some preparation work together already as you refer > > >>> to in [0], and we thank you for your help in upstreaming ovn-heater. > > >>> > > >>> We have yet to schedule exactly when in the cycle to work on this, I > > >>> guess a next step could be to set up a meet to share some ideas and > > >>> see how it aligns? > > >> > > >> > > >>> If that resonates with you, I'd be happy to organize. > > >>> > > >> > > >> Sounds good, please do :) > > >> > > >> > > >>> > > >>>> Having OpenStack-like scenarios in ovn-heater would really allow OVN > > >>>> developers to profile/troubleshoot/optimize OVN for those use cases > > >>>> too. > > >>>> > > >>>> Well, in general, the above is true for any other CMS too. > > >>> > > >>> Yes, this is what we have been thinking as well. We are supporting other > > >>> products in their journey with OVN as well, so similar projects may come > > >>> from those in the future. > > >>> > > >> > > >> Yes, we can try to model OpenStack-like scenarios for ovn-heater where > > >> the > > >> resources are generally more distributed across the hypervisors than in > > >> k8s > > >> for example, perhaps larger L2 domain sizes, etcetera. > > >> Happy to discuss further! > > >> > > >> daniel > > >> > > >> > > >>> -- > > >>> Frode Nordahl > > >>> > > >>>> Thanks, > > >>>> Dumitru > > >>>> > > >>>> [0] > > >>> https://mail.openvswitch.org/pipermail/ovs-dev/2023-March/402680.html > > >>>> > > >>> > > >>> > > >> _______________________________________________ > > >> dev mailing list > > >> d...@openvswitch.org > > >> https://mail.openvswitch.org/mailman/listinfo/ovs-dev > > > Diese E Mail enthält möglicherweise vertrauliche Inhalte und ist nur für > > > die Verwertung durch den vorgesehenen Empfänger bestimmt. > > > Sollten Sie nicht der vorgesehene Empfänger sein, setzen Sie den Absender > > > bitte unverzüglich in Kenntnis und löschen diese E Mail. > > > > > > Hinweise zum Datenschutz finden Sie > > > hier<https://www.datenschutz.schwarz/>. > > > > > > > > > This e-mail may contain confidential content and is intended only for the > > > specified recipient/s. > > > If you are not the intended recipient, please inform the sender > > > immediately and delete this e-mail. > > > > > > Information on data protection can be found > > > here<https://www.datenschutz.schwarz/>. > > > > > > Diese E Mail enthält möglicherweise vertrauliche Inhalte und ist nur für die > Verwertung durch den vorgesehenen Empfänger bestimmt. > Sollten Sie nicht der vorgesehene Empfänger sein, setzen Sie den Absender > bitte unverzüglich in Kenntnis und löschen diese E Mail. > > Hinweise zum Datenschutz finden Sie hier<https://www.datenschutz.schwarz/>. > > > This e-mail may contain confidential content and is intended only for the > specified recipient/s. > If you are not the intended recipient, please inform the sender immediately > and delete this e-mail. > > Information on data protection can be found > here<https://www.datenschutz.schwarz/>. _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
