openstack-discuss

openstack-discuss@lists.openstack.org

April 2022

  • 141 participants
  • 202 discussions
Fwd: DPDK+OVS with OpenStack
by Mark Wittling 23 Apr '25

23 Apr '25
Looking for someone who knows OpenStack with OpenVSwitch, and in additionto that, DPDK with OpenStack and OVS.I am using OpenStack Queens, withOpenVSwitch. The architecture I am using is documented here:https://docs.openstack.org/neutron/queens/admin/deploy-ovs-provider.htmlTheOVS I am using on the Compute Node, is compiled with DPDK, and I haveenabled 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 actuallysure about whether to tinker with this bridge, and wondered what datapathit was using.Then, I realized there is a parameter in theopenvswitch_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 = systemdatapath_type = netdevSo in tinkering with this, what I realized, is that when you set thisdatapath_type to system or netdev, it will adjust the br-int bridge to thatdatapath type.So here is my question. How can I launch a non-DPDK VM, ifall of the bridges are using the netdev datapath type?Here is anotherquestion. What if one of the flavors don’t have the largepages property seton them? I assumed OpenStack would revert to a system datapath and not useDPDK for those VM interfaces. Well, I found out in testing, that is not thecase. If you set all your bridges up for netdev, and you don’t set theproperty on the Flavor of the VM (largepages), the VM will launch, but itsimply won’t work.Is there no way, on a specific Compute Host, to supportboth DPDK (netdev datapaths) and non-DPDK (system datapaths)?Either on a VMinterface level (VM has one interface that is netdev DPDK and another thatis system datapath non-DPDK)?Or on a VM by VM basis (VM 1 has 1 or morenetdev datapath interfaces and VM 2 has 1 or more system datapathinterfaces)?Am I right here? Once you set up a Compute Host for DPDK, it’sDPDK or nothing on that Compute Host? (edited)
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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'mreferring 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 networkingopenstack? 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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Hi,I am currently trying to deploy openstack wallaby using tripleo arch.I created the network jinja templates, ran the following commands also:#openstack overcloud network provision --stack overcloud --outputnetworks-deployed-environment.yaml custom_network_data.yaml# openstack overcloud network vip provision --stack overcloud --outputvip-deployed-environment.yaml custom_vip_data.yaml# openstack overcloud node provision --stack overcloud--overcloud-ssh-key /home/stack/sshkey/id_rsaovercloud-baremetal-deploy.yamland used the environment files in the openstack overcloud deploy command:(undercloud) [stack@hkg2director ~]$ cat deploy.sh#!/bin/bashTHT=/usr/share/openstack-tripleo-heat-templates/CNF=/home/stack/openstack overcloud deploy --templates $THT \-r $CNF/templates/roles_data.yaml \-n $CNF/workplace/custom_network_data.yaml \-e ~/containers-prepare-parameter.yaml \-e $CNF/templates/node-info.yaml \-e $CNF/templates/scheduler-hints.yaml \-e $CNF/workplace/networks-deployed-environment.yaml \-e $CNF/workplace/vip-deployed-environment.yaml \-e $CNF/workplace/overcloud-baremetal-deployed.yaml \-e $CNF/workplace/custom-net-bond-with-vlans.yamlNow when i run the ./deploy.sh script i encounter an error stating:ERROR openstack [-] ResourceOS::TripleO::Network::Ports::ControlPlaneVipPort maps to typeOS::Neutron::Port and the Neutron service is not available when usingephemeral Heat. The generated environments from 'openstack overcloudbaremetal provision' and 'openstack overcloud network provision' must beincluded with the deployment command.:tripleoclient.exceptions.InvalidConfiguration: ResourceOS::TripleO::Network::Ports::ControlPlaneVipPort maps to typeOS::Neutron::Port and the Neutron service is not available when usingephemeral Heat. The generated environments from 'openstack overcloudbaremetal provision' and 'openstack overcloud network provision' must beincluded with the deployment command.2022-04-19 13:47:16.582 735924 INFO osc_lib.shell [-] END return value: 1Can someone tell me where the mistake is?With regards,Swogat Pradhan
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Live migration fails
by Szabo, Istvan (Agoda) 06 Aug '24

06 Aug '24
Hi,I have couple of compute nodes where the live migration fails with existing vms.When I quickly spawn a vm and try live migration it works so I assume shouldn't be a big problem with the compute node.However I have many existing vms where it fails with a servername not found./var/log/nova/nova-conductor.log:2021-04-21 14:47:12.605 227612 ERROR nova.conductor.tasks.migrate [req-f4067a26-a233-4673-8c07-9a8a290980b0 dce35e6eceea4312bb0baa0510cef363 ca7e35079f4440c78bd9870724b9638b - default default] [instance: 1517a2ac-3b51-4d8d-80b3-89a5614d1ae0] Unable to find record for source node servername on servername: ComputeHostNotFound: Compute host servername could not be found./var/log/nova/nova-conductor.log:2021-04-21 14:47:12.605 227612 WARNING nova.scheduler.utils [req-f4067a26-a233-4673-8c07-9a8a290980b0 dce35e6eceea4312bb0baa0510cef363 ca7e35079f4440c78bd9870724b9638b - default default] Failed to compute_task_migrate_server: Compute host servername could not be found.: ComputeHostNotFound: Compute host servername could not be found./var/log/nova/nova-conductor.log:2021-04-21 14:47:12.605 227612 WARNING nova.scheduler.utils [req-f4067a26-a233-4673-8c07-9a8a290980b0 dce35e6eceea4312bb0baa0510cef363 ca7e35079f4440c78bd9870724b9638b - default default] [instance: 1517a2ac-3b51-4d8d-80b3-89a5614d1ae0] Setting instance to ACTIVE state.: ComputeHostNotFound: Compute host servername could not be found./var/log/nova/nova-conductor.log:2021-04-21 14:47:12.672 227612 ERROR oslo_messaging.rpc.server [req-f4067a26-a233-4673-8c07-9a8a290980b0 dce35e6eceea4312bb0baa0510cef363 ca7e35079f4440c78bd9870724b9638b - default default] Exception during message handling: ComputeHostNotFound: Compute host am-osfecn-4025Tried with this command:nova live-migration --block-migrate id.Any idea?Thank you.________________________________This message is confidential and is for the sole use of the intended recipient(s). It may also be privileged or otherwise protected by copyright or other legal rules. If you have received it by mistake please let us know by reply email and delete it from your system. It is prohibited to copy this message or disclose its content to anyone. Any confidentiality or privilege is not waived or lost by any mistaken delivery or unauthorized disclosure of the message. All messages sent to and from Agoda may be monitored to ensure compliance with company policies, to protect the company's interests and to remove potential malware. Electronic messages may be intercepted, amended, lost or deleted, or contain viruses.
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[puppet] Proposing core team clean up
by Takashi Kajinami 23 Aug '23

23 Aug '23
Hello,I went through the current core reviewers and found out that the currentlist includessome people no longer working in the OpenStack community.I'd like to propose removing the following persons from the core reviewerteamas we haven't seen these people making any activity in the communityrecently.* Pradeep Kilambi - puppet-aodh, puppet-ceilometer, puppet-gnocchi, puppet-panko* Richard Megginson - puppet-keystone* Denis Egorenko - puppet-murano* Serg Melikyan - puppet-murano* Sergey Kolekonov - puppet-neutron* David Moreau Simard - puppet-openstack-integration* Yu xingchao - all modulesAlso, I confirmed that Wes Hayutin is no longer working for OpenStack andhe agreedto retire from the core reviewer position. Thus I'll remove him as well.I'll be open for any feedback for one week to hear any thoughts/feedbackabout this removal.I'd like to take this moment to thank all people for their past work.We always welcome them back if they resume their work in this project.Thank you,Takashi KAJINAMI
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[all] Dynamic Zuul results table in Gerrit 3
by Radosław Piliszek 04 Aug '22

04 Aug '22
Hello Fellow OpenStack and OpenDev Folks!TL;DR click on [3] and enjoy.I am starting this thread to not hijack the discussion happening on [1].First of all, I would like to thank gibi (Balazs Gibizer) for hackinga way to get the place to render the table in the first place (punintended).I have been a long-time-now user of [2].I have improved and customised it for myself but never really got toshare back the changes I made.The new Gerrit obviously broke the whole script so it was of no use toshare at that particular state.However, inspired by gibi's work, I decided to finally sit down andfix it to work with Gerrit 3 and here it comes: [3].Works well on Chrome with Tampermonkey. Not tested others.I hope you will enjoy this little helper (I do).I know the script looks super fugly but it generally boils down to amix of styles of 3 people and Gerrit having funky UI rendering.Finally, I'd also like to thank hrw (Marcin Juszkiewicz) for linkingme to the original Michel's script in 2019.[1]http://lists.openstack.org/pipermail/openstack-discuss/2020-November/019051…[2]https://opendev.org/x/coats/src/commit/444c95738677593dcfed0cfd9667d4c4f0d5…[3]https://gist.github.com/yoctozepto/7ea1271c299d143388b7c1b1802ee75eKind regards,-yoctozepto
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Hi,After last PTL elections [1] Adjutant project don't have any PTL. It also didn't had PTL in the Yoga cycle already.So this is call for maintainters for Adjutant. If You are using it or interested in it, and if You are willing to help maintaining this project, please contact TC members through this mailing list or directly on the #openstack-tc channel @OFTC. We can talk possibilities to make someone a PTL of the project or going with this project to the Distributed Project Leadership [2] model.[1]http://lists.openstack.org/pipermail/openstack-discuss/2022-February/027411…[2]https://governance.openstack.org/tc/resolutions/20200803-distributed-projec…-- Slawek KaplonskiPrincipal Software EngineerRed Hat
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[all] PyCharm Licenses Renewed till July 2021
by Swapnil Kulkarni 13 Jul '22

13 Jul '22
Hello,Happy to inform you the open source developer license for Pycharm has beenrenewed for 1 additional year till July 2021.Best Regards,Swapnil Kulkarnicoolsvap at gmail dot com
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Hello Openstack-Discuss,after some digging I found out that cinder learned to resize attached (in-use) volumes quite a while ago with the introductionof the initial "extend 'in-use' volume" feature:https://review.opendev.org/c/openstack/cinder/+/454287/The support was then extended to also cover Ceph RBD backed volumes with:https://review.opendev.org/c/openstack/nova/+/613039/Since this is only about the cinder part, I was wondering if nova would ever find out and would actively rescan the device / volume and quintessentially present an increased new size to the guest. Apparently this is where a certain volume-extended event comes into play:https://review.opendev.org/c/openstack/nova/+/454322/ that is to be emitted by cinder when a volume had been extened.I then went head and tried this with the openstack cli (as Horizon does not seem to support / offer to resize in-use volumes.I run Openstack Train with Ceph RBD as storage. First I ran into an issue with the openstack cli (https://bugs.launchpad.net/cinder/+bug/1871759/comments/2 <https://bugs.launchpad.net/cinder/+bug/1871759/comments/2>) but using   cinder extend $volumeid $newsizeI was able to resize in-use volumes just fine.The only thing missing was the propagation to the guest. I played around with SCSI rescans, but that did not work, reboots also failed to do anyting in this regards. Stopping and starting the VM did work, but why having the capability to online-resize an attached volume when not being able to resize the guest volume as well?Apparently there seems to be an old and somewhat similar observation / bug withhttps://bugs.launchpad.net/nova/+bug/1369465So I was simply wondering if this is expected to be working?Are there any special settings / options I need to set to enable this feature?Thanks and with kind regardsChristian
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[Ceph Rados Gateway] 403 when using S3 client
by Taltavull Jean-François 26 Jun '22

26 Jun '22
Hi All,I get an http 403 error code when I try to get the bucket list with Ubuntu (Focal) S3 client (awscli).S3 api has been activated in radosgw config file and EC2 credentials have been created and put in S3 client config file.Otherwise, everything is working fine with OpenStack client.My deployment:- OSA 23.2.0- OpenStack Wallaby- Ceph and Rados GW OctopusHas any of you already experienced this kind of behaviour ?Many thanks,Jean-Francois
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