April 2025 - openstack-discuss - lists.openstack.org

Celebrate OpenStack Turning 15!
by helena＠openinfra.dev 23 Apr '25

23 Apr '25

Hi everyone! As part of the celebrations for OpenStack's 15th birthday, we have created interactive birthday cards. We are inviting the community to celebrate with us by filling out the cards and sharing them on social media. There are options to both talk about your individual contributions as well as your organization’s deployment. We invite you to join in on the fun, fill out a card, and share it on social media with #WeAreOpenStack Feel free to download the files from here: https://drive.google.com/drive/folders/176go2mSHZGyRAZJPBYcIlGHpmKIIRhUo?us… If you need some inspiration, check out Thierry Carrez’s post! https://fosstodon.org/@tcarrez/114386689095092405 Cheers to 15 years of OpenStack! Helena helena(a)openinfra.dev Community Programs Manager The OpenInfra Foundation

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how to config DPDK on OVN ?
by alibasafa18＠gmail.com 23 Apr '25

23 Apr '25

Hi....as far I understand ovs does support dpdk compute to be deployed. I'm referring to the guideline ' *https://docs.openstack.org/networking-ovn/queens/admin/dpdk.html <https://docs.openstack.org/networking-ovn/queens/admin/dpdk.html>* ' ... It's too brief.. May I know how to config dpdk compute in OVN networking openstack? Hope someone could help what is the config to be done.... Currently compute is run without dpdk over openstack train ovn based. Please need some info on how I can proceed. Thank you

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Fwd: DPDK+OVS with OpenStack
by Mark Wittling 23 Apr '25

23 Apr '25

Looking for someone who knows OpenStack with OpenVSwitch, and in addition to that, DPDK with OpenStack and OVS.I am using OpenStack Queens, with OpenVSwitch. The architecture I am using is documented here: https://docs.openstack.org/neutron/queens/admin/deploy-ovs-provider.htmlThe OVS I am using on the Compute Node, is compiled with DPDK, and I have enabled the datapath to netdev (DPDK) on br-prv (provider network bridge), and br-tun (tunneling bridge). But these two bridges, br-tun and br-prv, are patched into another OpenStack bridge, called br-int. I wasn’t actually sure about whether to tinker with this bridge, and wondered what datapath it was using.Then, I realized there is a parameter in the openvswitch_agent.ini file, which I will list here: # OVS datapath to use. 'system' is the default value and corresponds to the # kernel datapath. To enable the userspace datapath set this value to 'netdev'. # (string value) # Possible values: # system - <No description provided> # netdev - <No description provided> #datapath_type = system datapath_type = netdev So in tinkering with this, what I realized, is that when you set this datapath_type to system or netdev, it will adjust the br-int bridge to that datapath type.So here is my question. How can I launch a non-DPDK VM, if all of the bridges are using the netdev datapath type?Here is another question. What if one of the flavors don’t have the largepages property set on them? I assumed OpenStack would revert to a system datapath and not use DPDK for those VM interfaces. Well, I found out in testing, that is not the case. If you set all your bridges up for netdev, and you don’t set the property on the Flavor of the VM (largepages), the VM will launch, but it simply won’t work.Is there no way, on a specific Compute Host, to support both DPDK (netdev datapaths) and non-DPDK (system datapaths)?Either on a VM interface level (VM has one interface that is netdev DPDK and another that is system datapath non-DPDK)?Or on a VM by VM basis (VM 1 has 1 or more netdev datapath interfaces and VM 2 has 1 or more system datapath interfaces)?Am I right here? Once you set up a Compute Host for DPDK, it’s DPDK or nothing on that Compute Host? (edited)

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[ovn-bgp-agent] Add Fernando Royo to the members list
by Rodolfo Alonso Hernandez 23 Apr '25

23 Apr '25

Hello all: I would like to propose Fernando Royo as maintainer and reviewer of the ovn-bgp-agent project [1]. As other members of the project will know, he is an active developer and reviewer. Regards. [1]https://launchpad.net/~ovn-bgp-agent-drivers/+members#active

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[kolla-ansible] deploying epoxy release issues
by Satish Patel 23 Apr '25

23 Apr '25

Folks, For the experiment, I am deploying epoxy in the lab and getting some nova related issues. not sure if they are bugs or just config tuning. #BUG 1 placement_api container failed to start because of uWSIG provider issue. I have changed to apache that fixed the issue. placement_api_backend: "apache" placement_wsgi_provider: "apache" # BUG 2 or Failed it this point. TASK [nova-cell : Waiting for nova-compute services to register themselves] ****************************************************************************************************************************************** An exception occurred during task execution. To see the full traceback, use -vvv. The error was: json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0) fatal: [vsan2]: FAILED! => {"msg": "Unexpected failure during module execution: Expecting value: line 1 column 1 (char 0)", "stdout": ""} # BUG 3 inside the nova-computer container I didn't see any service or process related privsep-helper --config-file /etc/nova/nova.conf is this something new or missed by bug or config? (xenv) root@vsan2:/etc/kolla# docker exec -it -u0 nova_compute bash (nova-compute)[root@vsan2 /]# ps aux USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND nova 1 0.0 0.0 2644 956 ? Ss 08:28 0:00 dumb-init --single-child -- kolla_start nova 7 1.0 0.0 1883120 188576 ? Sl 08:28 0:15 /var/lib/kolla/venv/bin/python3 /var/lib/kolla/venv/bin/nova-compute root 611 1.0 0.0 7636 4128 pts/2 Ss 08:52 0:00 bash root 627 0.0 0.0 10072 1580 pts/2 R+ 08:52 0:00 ps aux

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How to config DPDK compute in OVN
by dangerzone ar 22 Apr '25

22 Apr '25

Hi....as far I understand ovs does support dpdk compute to be deployed. I'm referring to the guideline ' *https://docs.openstack.org/networking-ovn/queens/admin/dpdk.html <https://docs.openstack.org/networking-ovn/queens/admin/dpdk.html>* ' ... It's too brief.. May I know how to config dpdk compute in OVN networking openstack? Hope someone could help what is the config to be done.... Currently compute is run without dpdk over openstack train ovn based. Please need some info on how I can proceed. Thank you

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[kolla-ansible] Nova + ceph cache mode
by Michael Knox 22 Apr '25

22 Apr '25

Hey Folks, Is it possible to use "cache=none" and "io=native" values with a kolla-ansible deployed cloud that uses a Ceph backend? Looks like that it's hard coded to use writeback for caching when the Nova backend is rbd. No globals.yaml overrides. https://github.com/openstack/kolla-ansible/blob/8d6b5de4c19681dd6cbec45d803… Cheers Michael

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Using IOThreads
by Vahric Muhtaryan 22 Apr '25

22 Apr '25

Hello Everyone, I saw that using IO Thread for instance was planned but somehow implementation is deferred. https://blueprints.launchpad.net/nova/+spec/iothreads-for-instances Are there any updates regarding the schedule for IOThread implementation? Regards Vahric

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[neutron] Bug deputy week 16 (April 14 - April 20)
by Lajos Katona 22 Apr '25

22 Apr '25

Hi Neutrinos, I send the bugs from week 16 (From April 14 to April 20). *High* * test_assert_pings_during_br_phys_setup_not_lost_in_vlan_to_flat functional tests randomly fails ( https://bugs.launchpad.net/neutron/+bug/2107775 ) *Medium* * When a new security group rule is created, logging is not properly configured (https://bugs.launchpad.net/neutron/+bug/2107446 ): Fix is committed: https://review.opendev.org/c/openstack/neutron/+/947324 , but I was not able to reproduce it in my local env. * Disable gateway error with flow based DHCP ( https://bugs.launchpad.net/neutron/+bug/2107552 ) Fix is under review ( https://review.opendev.org/c/openstack/neutron/+/947560 ) *RFE*: * Same Host Traffic Leaks in Neutron DVR When Using BGP ( https://bugs.launchpad.net/neutron/+bug/2107634 ) *Fix committed* * [whitebox-neutron-tempest-plugin] QoS BW limit tests after migration should check the compute of sender and receiver ( https://bugs.launchpad.net/neutron/+bug/2107368 ) *Incomplete* * router ha was split brain when restarting l3 agent docker ( https://bugs.launchpad.net/neutron/+bug/2107323 ): More information is necessary the logs contain any relevant information. Best wishes Lajos Katona (lajoskatona)

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[dalmatian]display of "enable_dhcp" in horizon
by Franck VEDEL (UGA) 22 Apr '25

22 Apr '25

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