December 2022 - openstack-discuss

[nova] Do openstack support USB passthrough
by 韩光宇 04 Jan '23

04 Jan '23

Hi, all I want to ask if openstack support USB passthrough now? Or if I want the instance to recognize the USB flash drive on the host, do you have any suggestions? Thanks, Han

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2023 PTGs + Virtual Team Signup
by Kendall Nelson 03 Jan '23

03 Jan '23

Hello Everyone! The next PTG on the calendar will be our usual virtual format and it will take place March 27 -31 right after the 2023.1 release. The project signup survey is already ready to go! If your team is interested in participating, sign them up here[1]! Registration is also open now[2] We have also heard many requests from the contributor community to bring back in person events and also heard that with global travel reduction, it would be better travel wise for the community at large to combine it with the OpenInfra Summit[3]. So, an in-person PTG will take place Wednesday and Thursday! June 14 -15th. OpenInfra Summit registration will be required to participate, and contributor pricing and travel support[4] will be available. We will also be planning another virtual PTG in the latter half of the year. The exact date is still being finalized. This will give you three opportunities to get your team together in 2023: two virtual and one in-person. - Virtual: March 27-31 - In- Person: June 14-15 collocated with the OpenInfra Summit - Virtual: TBD, but second half of the year As any project in our community, you are free to take advantage of all or some of the PTGs this coming year. I, for one, hope to see you and your project at as many as make sense for your team! To make sure we are as inclusive as possible I will continue to encourage team moderators to write summaries of their discussions to gather and promote after the events as well. Stay tuned for more info as we get closer, but the team signup survey[1] has opened for the first virtual PTG and is ready for you! -Kendall (diablo_rojo) [1] https://openinfrafoundation.formstack.com/forms/march2023_vptg_survey [2] https://openinfra-ptg.eventbrite.com [3]https://openinfra.dev/summit/vancouver-2023 [4] https://openinfrafoundation.formstack.com/forms/openinfra_tsp

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[cloudkitty][horizon] change service name list in GUI
by Satish Patel 03 Jan '23

03 Jan '23

Folks, I am trying to configure rating for network data bytes in/out but what I have seen is that the ceilometer uses a different name than what cloudkitty GUI drop down-menu has. Ceilometer using "network.outgoing.bytes" and "network.incoming.bytes" Cloudkitty GUI drop-down list has "network.outgoing.bytes.rate" & "network.incoming.bytes.rate" I have tried to change it in cloudkitty metrics.yml file to match it with the ceilometer but the rating is not calculating until I change that in cloudkitty. Please advise how to change it in cloudkitty.

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[ansible][ACO] - Contribution questions
by Gaël THEROND 31 Dec '22

31 Dec '22

Hi ansible collections openstack team! I finally had time to list all my issues met with the project, created few bug reports and even contributed to a patch today (minor, mainly copy/paste) however I’ve few questions regarding the CI process! Overall, what’s the rule with the CI code testing? I’ve read the contributing guide and had an eye on previous patches to see how it’s used but I’m having a hard time to find a real unified method. For instance, it seems that some module miss CI tasks (such as compute_service_info) or did I missed something? Thanks a lot for all the good job!

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[release] Release countdown for week R-11, Jan 2 - 6
by Thierry Carrez 30 Dec '22

30 Dec '22

Development Focus ----------------- The Antelope-2 milestone is next week, on January 5, 2023! Antelope-related specs should now be finalized so that teams can move to implementation ASAP. Some teams observe specific deadlines on the second milestone (mostly spec freezes): please refer to https://releases.openstack.org/antelope/schedule.html for details. General Information ------------------- Libraries need to be released at least once per milestone period. Next week, the release team will propose releases for any library that has not been otherwise released since milestone 1. PTL's and release liaisons, please watch for these and give a +1 to acknowledge them. If there is some reason to hold off on a release, let us know that as well. A +1 would be appreciated, but if we do not hear anything at all by the end of the week, we will assume things are OK to proceed. Remember that non-library deliverables that follow the cycle-with-intermediary release model should have an intermediary release before milestone-2. Those who haven't will be proposed to switch to the cycle-with-rc model, which is more suited to deliverables that are released only once per cycle. Next week is also the deadline to freeze the contents of the final release. All new 'Antelope' deliverables need to have a deliverable file in https://opendev.org/openstack/releases/src/branch/master/deliverables and need to have done a release by milestone-2. Changes proposing those deliverables for inclusion in Antelope have been posted, please update them with an actual release request before the milestone-2 deadline if you plan on including that deliverable in Antelope, or -1 if you need one more cycle to be ready. Upcoming Deadlines & Dates -------------------------- Antelope-2 Milestone: January 5th, 2023 OpenInfra Summit Vancouver CFP deadline: January 10th, 2023 Final 2023.1 Antelope release: March 22nd, 2023 -- Thierry Carrez (ttx)

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Re: [ops][nova] RBD IOPS bottleneck on client-side
by Ümit Seren 30 Dec '22

30 Dec '22

We had a similar performance issue with networking (via openswitch) instead of I/O. Our hypervisor and VM configuration were like yours (VCPU pinning + isolcpus). We saw a 50% drop in virtualized networking throughput (measure via iperf). This was because the vhost_net kthreads which are responsible for the virtualized networking were pinned to 2 cores per socket and this quickly became the bottleneck. This was with OpenStack Queens and RHEL 7.6. We ended up keeping the VCPU pinning but removing the isolcpus kernel setting. This fixed the performance regression. Unfortunately, we didn’t further investigate this, so I don’t know why a newer kernel and/or newer Openstack release improves it. Hope this still helps Best Ümit On 27.12.22, 13:33, "Can Özyurt" <acozyurt(a)gmail.com> wrote: Hi everyone, I hope you are all doing well. We are trying to pinpoint an IOPS problem with RBD and decided to ask you for your take on it. 1 control plane 1 compute node 5 storage with 8 SSD disks each Openstack Stein/Ceph Mimic deployed with kolla-ansible on ubuntu-1804 (kernel 5.4) isolcpus 4-127 on compute vcpu_pin_set 4-127 in nova.conf image_metadatas: hw_scsi_model: virtio-scsi hw_disk_bus: scsi flavor_metadatas: hw:cpu_policy: dedicated What we have tested: fio --directory=. --ioengine=libaio --direct=1 --name=benchmark_random_read_write --filename=test_rand --bs=4k --iodepth=32 --size=1G --readwrite=randrw --rwmixread=50 --time_based --runtime=300s --numjobs=16 1. First we run the fio test above on a guest VM, we see average 5K/5K read/write IOPS consistently. What we realize is that during the test, one single core on compute host is used at max, which is the first of the pinned cpus of the guest. 'top -Hp $qemupid' shows that some threads (notably tp_librbd) share the very same core throughout the test. (also emulatorpin set = vcpupin set as expected) 2. We remove isolcpus and every other configuration stays the same. Now fio tests now show 11K/11K read/write IOPS. No bottlenecked single cpu on the host, observed threads seem to visit all emulatorpins. 3. We bring isolcpus back and redeploy the cluster with Train/Nautilus on ubuntu-1804. Observations are identical to #1. 4. We tried replacing vcpu_pin_set to cpu_shared_set and cpu_dedicated_set to be able to pin emulator cpuset to 0-4 to no avail. Multiple guests on a host can easily deplete resources and IOPS drops. 5. Isolcpus are still in place and we deploy Ussuri with kolla-ansible and Train (to limit the moving parts) with ceph-ansible both on ubuntu-1804. Now we see 7K/7K read/write IOPS. 6. We destroy only the compute node and boot it with ubuntu-2004 with isolcpus set. Add it back to the existing cluster and fio shows slightly above 10K/10K read/write IOPS. What we think happens: 1. Since isolcpus disables scheduling between given cpus, qemu process and its threads are stuck at the same cpu which created the bottleneck. They should be runnable on any given emulatorpin cpus. 2. Ussuri is more performant despite isolcpus, with the improvements made over time. 3. Ubuntu-2004 is more performant despite isolcpus, with the improvements made over time in the kernel. Now the questions are: 1. What else are we missing here? 2. Are any of those assumptions false? 3. If all true, what can we do to solve this issue given that we cannot upgrade openstack nor ceph on production overnight? 4. Has anyone dealt with this issue before? We welcome any opinion and suggestions at this point as we need to make sure that we are on the right path regarding the problem and upgrade is not the only solution. Thanks in advance.

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Glance api deployed only on a single controller on multi-controller deployment [kolla]
by A Monster 30 Dec '22

30 Dec '22

I've deployed openstack xena using kolla ansible on a centos 8 stream cluster, using two controller nodes, however I found out after the deployment that glance api is not available in one node, I tried redeploying but I got the same behavior, although the deployment finished without displaying any error. Thank you. Regards

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[all][requirements][qa]: requirement-checks job broken for <=stable/yoga because it run on ubuntu-jammy on stable branch
by Ghanshyam Mann 29 Dec '22

29 Dec '22

Hello Everyone, While base jobs in opendev moved to run on ubuntu-jammy, requirement-checks job start running on ubuntu-jammy which is ok for the master but not for stable branches. As result, requirement-checks on stable branch running on ubuntu-jammy and started failing for stable/yoga and less: Error: No package matching 'python-dev' is available - https://zuul.opendev.org/t/openstack/build/811ca9311b894b97bfae4438070e5e22 Fixing it by setting the nodeset explicitly in that job so that it does not get changed in future when we move to ubuntu new version for testing. - https://review.opendev.org/q/Ie676079c0b798335ab2a82c03fe4715e0eee4d57 If you see the requirement-checks job failing (if there is a requirement change in the stable branch backport), please hold the recheck until the above fixes are merged. As tox4 fails the requirement gate, pushing the above fixes on top of tox4 fixes - https://review.opendev.org/q/I7bc7c98954395765f16cc943e5c826983db5dba0 -gmann

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kolla openstack the freezer end point is not reachable
by K Santhosh 29 Dec '22

29 Dec '22

Hai , In kolla openstack the freezer end point is not reachable and the freezer api couldn't reach in web browser if any document is there make it to me

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Container trying to access mounted device file
by vincent lee 29 Dec '22

29 Dec '22

Hi all, I am trying to access a mounted device file from my node to my newly created container. I am currently using Kolla-ansible for the deployment, and it is in the yoga version. For example, when I mount a device to my node, such as a radio receiver, the device file (/dev/mounted device name) is accessible on my node directly. However, I am looking for an option to enable the newly created container to access that device file. Best, Vincent

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