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#openstack-nova - 2022-11-28
17:57:40 gmann gibi: bauzas sean-k-mooney: hi, for detach issue in nova-lvm job. tempest patch need more time it seems. I was making server sshable by default which need more work in other tests.
17:58:55 gmann gibi: sean-k-mooney bauzas: I am moving my house this week so might need some more time on that. For now, I think we can go with skipping the failing tests temporarily in nova-lvm
17:59:06 bauzas ack
17:59:09 opendevreview Amit Uniyal proposed openstack/nova stable/ussuri: [compute] always set instance.host in post_livemigration https://review.opendev.org/c/openstack/nova/+/864007
17:59:15 gibi gmann: thanks for looking into it
18:00:54 sean-k-mooney so i think we shoudl be ok to skip them for a few weeks to unblock things
18:01:16 gibi yepp I agree
18:01:25 sean-k-mooney the cidner code paths really shoudl not depend on the images_backend that is in use at least not lvm
18:01:26 gibi sady we have no better option now
18:01:29 gmann but thing is those failing rescue test, all use ssh-able server. there is something else might be causing the failure
18:01:45 sean-k-mooney gmann: yep there likely is
18:01:55 gmann something to do on Jammy as lvm on focal working fine
18:02:11 sean-k-mooney possibly
18:02:28 sean-k-mooney it defiently happens more on jammy im not sure it would not happen on focal
18:02:43 sean-k-mooney it might be related to a default config delta between the two or the qemu/libvirt verions
18:02:59 sean-k-mooney but we dont currently have a lot of capsity to investigate
18:02:59 gmann may be
18:03:40 gmann yeah, do we have patch up to skip the tests?
18:04:05 sean-k-mooney i think bauzas has one but im not sure they updated for the volume tests
18:04:19 gmann k
18:04:51 gmann this one? https://review.opendev.org/c/openstack/nova/+/865658
18:05:13 sean-k-mooney that was to solve the other issue so that is not needed
18:05:14 gmann this does not include nova-lvm failing tests
18:05:21 gmann k
18:05:23 sean-k-mooney we shoudl pull that form the gate
18:06:22 sean-k-mooney gmann: i do not see one form sylvain
18:06:38 sean-k-mooney so i guess there is non e right now for the lvm failures
18:11:45 opendevreview Amit Uniyal proposed openstack/nova stable/train: [compute] always set instance.host in post_livemigration https://review.opendev.org/c/openstack/nova/+/864055
23:59:23 opendevreview Ghanshyam proposed openstack/nova master: Temporary skip some volume detach test in nova-lvm job https://review.opendev.org/c/openstack/nova/+/865922
#openstack-nova - 2022-11-29
02:38:23 opendevreview Amit Uniyal proposed openstack/nova stable/train: Adds a repoducer for post live migration fail https://review.opendev.org/c/openstack/nova/+/863806
02:38:24 opendevreview Amit Uniyal proposed openstack/nova stable/train: [compute] always set instance.host in post_livemigration https://review.opendev.org/c/openstack/nova/+/864055
02:43:59 gmann bauzas: sean-k-mooney[m] gibi : this is for skipping failing tests https://review.opendev.org/c/openstack/nova/+/865922
08:38:39 opendevreview Amit Uniyal proposed openstack/nova master: Refactoring live_migrate function name https://review.opendev.org/c/openstack/nova/+/865954
08:41:46 bauzas gibi: sean-k-mooney: your help is appreciated https://review.opendev.org/c/openstack/nova/+/865922
09:30:33 opendevreview Arnaud Morin proposed openstack/nova master: Unbind port when offloading a shelved instance https://review.opendev.org/c/openstack/nova/+/853682
09:34:08 gibi bauzas: on it
09:34:56 gibi gmann: thank you
09:45:27 bauzas gibi: thanks
09:45:38 bauzas and I updated the ML thread to notify our gerrit users
09:45:50 opendevreview Amit Uniyal proposed openstack/nova master: Adds check if resized to swap zero https://review.opendev.org/c/openstack/nova/+/857339
09:45:50 gibi cool
11:08:30 opendevreview Merged openstack/nova master: Temporary skip some volume detach test in nova-lvm job https://review.opendev.org/c/openstack/nova/+/865922
11:08:37 opendevreview Merged openstack/nova stable/wallaby: Adds a repoducer for post live migration fail https://review.opendev.org/c/openstack/nova/+/863900
11:13:34 opendevreview Manuel Bentele proposed openstack/nova-specs master: Add configuration options to set SPICE compression settings https://review.opendev.org/c/openstack/nova-specs/+/849488
11:13:44 opendevreview Amit Uniyal proposed openstack/nova stable/train: add regression test case for bug 1978983 https://review.opendev.org/c/openstack/nova/+/864168
11:13:45 opendevreview Amit Uniyal proposed openstack/nova stable/train: For evacuation, ignore if task_state is not None https://review.opendev.org/c/openstack/nova/+/864169
11:40:23 opendevreview Amit Uniyal proposed openstack/nova stable/train: add regression test case for bug 1978983 https://review.opendev.org/c/openstack/nova/+/864168
11:40:24 opendevreview Amit Uniyal proposed openstack/nova stable/train: For evacuation, ignore if task_state is not None https://review.opendev.org/c/openstack/nova/+/864169
12:01:34 opendevreview Merged openstack/nova stable/wallaby: [compute] always set instance.host in post_livemigration https://review.opendev.org/c/openstack/nova/+/863901
13:45:30 sahid morning dansmith, how do you feel regarding spec https://review.opendev.org/c/openstack/nova-specs/+/857838 I also have proposed the implementation
13:46:04 sahid if you have a moment i would be glad to make progress on it, eel free to let me know if there is any point that you need details thanks a lot
13:47:00 slaweq gibi bauzas and other nova cores: hi, please check https://review.opendev.org/c/openstack/nova/+/855664 when You will have few minutes, thx in advance
13:48:12 pengo_ https://www.irccloud.com/pastebin/kIDKAF54/
13:48:12 pengo_ Hello I am using wallaby release openstack and having issues with cinder volumes attachments as once I try to delete, resize or unshelve the shelved vms the volume_attachement entries do not get deleted in cinder db and therefore the above mentioned operations fail every time. I have to delete these volume_attachement entries manually to make it work. I could only gather logs from nova-compute
13:49:54 pengo_ If I would like to unshelve the instance it wont work as it has a duplicate entry in cinder db for the attachment. So i have to delete it manually from db or via cli. This is the only choice I have if I would like to unshelve vm. But this is not a good approach for production env to delete duplicate volume attachments entries every time for every vm. Is there any way to fix this issue ?
14:11:22 opendevreview Amit Uniyal proposed openstack/nova master: Adds regression functional test for 1980720 https://review.opendev.org/c/openstack/nova/+/861357
14:11:23 opendevreview Amit Uniyal proposed openstack/nova master: Adds check for VM snapshot fail while quiesce https://review.opendev.org/c/openstack/nova/+/852171
14:16:04 bauzas slaweq: hah, I remember the context, we discussed this at the PTG right?
14:22:33 pengo_ lyes
14:35:22 slaweq_ bauzas: yes, we talked about it at the PTG
14:35:40 slaweq_ and we agreed that we can go with this approach
14:36:40 sean-k-mooney is this related to the mtu advertisement ?
14:36:46 sean-k-mooney or soemthing else
14:37:00 sean-k-mooney ah yes https://review.opendev.org/c/openstack/nova/+/855664
14:37:14 slaweq_ sean-k-mooney: yes
14:37:29 sean-k-mooney ya so we agreeed that if dhcp is avialable on the subnet we can omit the mtu form the metadata
14:38:12 sean-k-mooney this will allow the mtu to be reduced but not increased and the vms will clamp the mtu the next time it renews its dhcp lease
14:38:19 sean-k-mooney will still not perfect it will help
14:38:57 sean-k-mooney i can take a look now before i forget about it again
14:41:23 sean-k-mooney slaweq_: quick question
14:42:00 sean-k-mooney slaweq_: is the mtu on the netowrk or on the subnet in neutron. its generally an aspect of the netwrok in a real deployment just wondering how its modeled in neutron
14:42:47 sean-k-mooney neutron does not supprot having diffenert mtu per network segment correct when using routed networks
14:47:44 sean-k-mooney i have asked that in the review https://review.opendev.org/c/openstack/nova/+/855664/3/nova/virt/netutils.py#b266
14:48:12 slaweq_ sean-k-mooney: mtu is per network for sure
14:48:26 slaweq_ I'm not sure about segments in routed networks
14:49:29 sean-k-mooney "The net-mtu extension allows plug-ins to expose the MTU that is guaranteed to pass through the data path of the segments in the network."
14:49:51 sean-k-mooney that makes it sound like the network mtu shoudl be the maxium mtu that woudl eb supported on all segments
14:50:20 sean-k-mooney ok we are good
14:50:23 sean-k-mooney https://docs.openstack.org/api-ref/network/v2/index.html?expanded=show-segment-details-detail#show-segment-details
14:50:28 sean-k-mooney the segment does not have an mtu field
14:50:38 slaweq_ sean-k-mooney++
14:51:10 sean-k-mooney nor does the subnet so ya defeintly per network ill upgade to +2 so
14:51:10 bauzas was trampled into internal problems, lemme look at the MTU patch
14:53:51 slaweq_ sean-k-mooney: thx a lot
15:02:10 bauzas slaweq: sent to the gate now the gate is back :)
15:02:46 gibi slaweq: I have a question https://review.opendev.org/c/openstack/nova/+/855664/3/nova/virt/netutils.py#274
15:06:15 bauzas gibi: I had the same concern, but eventually I said yes because it's an operator question
15:07:13 bauzas gibi: here, that means that we won't provide the MTU in the metadata service if the subnet from the instance is using a dhcp server
15:08:18 gibi "subnet from the instance is using a dhcp server" <- but if the network has two subnets one with dhcp and one without dhcp then we need to check the actualy subnet the port uses, not every subnet in the network
15:08:37 gibi or do I miss something
15:08:38 gibi ?
15:09:05 gibi I'm OK to not set MTU if the subnet the port uses has DHCP. But the patch does not implement that
15:09:22 gibi that patch does not set MTU if _any_ of the subnets of the network has DHCP
15:09:38 gibi no just the one the port uses
15:10:30 frickler I need to double-check but I think for v6 the MTU is signaled by RAs, not dhcp?
15:11:10 sean-k-mooney gibi: good catch gibi
15:11:13 gibi (I assume that as the dhcp_server is defined per subnet it can be differently configured per subnet of the same network)
15:11:47 sean-k-mooney frickler: for ipv6 mtu is discoverd via the neibour discovery protocol
15:12:08 sean-k-mooney and it shoudl be automaticaly negociated regardelss of using RA or DHCP6
15:12:26 opendevreview Sylvain Bauza proposed openstack/nova master: Don't provide MTU value in metadata service if DHCP is enabled https://review.opendev.org/c/openstack/nova/+/855664

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