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#openstack-nova - 2020-11-23
15:21:34 kashyap He's a fixed a similar-sounding issue as above --^ It was also triggerred by OpenStack CI
15:21:42 kashyap s/a fixed/fixed/
15:22:07 sean-k-mooney gibi: the main delta there being virtio-ballon vs virtio-blk
15:38:42 kashyap sean-k-mooney: Also see this one: https://bugs.launchpad.net/nova/+bug/1737625
15:38:42 openstack Launchpad bug 1737625 in OpenStack Compute (nova) "live migration failed with "Failed to load virtio-blk:virtio" (libvirt/qemu)" [Undecided,Confirmed]
15:38:58 kashyap Especially my comment#2, FWIW
15:45:15 openstackgerrit Merged openstack/nova master: Fix the instance_uuid for test https://review.opendev.org/c/openstack/nova/+/763171
15:45:20 sean-k-mooney gibi: by the way this might be of interest to you https://bugzilla.redhat.com/show_bug.cgi?id=1895702
15:45:20 openstack bugzilla.redhat.com bug 1895702 in openstack-neutron "Nova – VM is created in spite of the fact that used port is missing fixed IP" [High,New] - Assigned to rhos-maint
15:46:05 openstackgerrit Merged openstack/nova master: doc: Update the PTL guide https://review.opendev.org/c/openstack/nova/+/762727
15:46:38 sean-k-mooney kashyap we might want to combine these or at least cross link them
15:47:01 gibi sean-k-mooney: interesing edge case where nova allows booting without IP
15:47:24 kashyap sean-k-mooney: So ... the ideal person to help debug this would be Stefan (he's on PTO), who is the 'virtio-blk' expert
15:47:26 sean-k-mooney gibi: ya i think its actully a neutron bug but you were asking about could we enable that behavior
15:47:46 kashyap That said, bugs like these, deep in the bowels of QEMU, require a debug QEMU with probes installed in the environment ...
15:47:52 gibi sean-k-mooney: yes, I got asked about it internally
15:48:03 kashyap ... and pray to the JuJu at the bottom of the sea that the bug reproduces
15:48:06 sean-k-mooney kashyap: if it starts blocking the ci then we will need to take more imediate action but until then i think it can wait till they are back form pto
15:48:37 kashyap sean-k-mooney: I highly doubt it can "block"; I just read Dave's explanation on the rare occurrence it can hit
15:48:45 kashyap As the last known occurrence in the CI seems to be 3 years ago
15:49:02 kashyap (But I'll comment further in the bug)
15:49:30 gibi yeah, i have no problem ignoring this qemu issue if it happens once in two years
15:50:01 sean-k-mooney yep same
15:50:15 sean-k-mooney we just know that it can fail this way
15:50:18 kashyap sean-k-mooney: Also, what's happening in the guest?
15:50:32 kashyap Is it just a garden-variety CirrOS instance just idling?
15:50:35 sean-k-mooney its just a migtrion of a cirror guest
15:50:41 sean-k-mooney yep
15:51:20 sean-k-mooney so beyound the ocational dhcp request or other idel work it should be doing nothing most of the time
15:54:55 kashyap sean-k-mooney: Dave says if it's a migrate-during-a-reboot, it could be a potential problem
15:54:58 kashyap That said ...
15:55:38 kashyap sean-k-mooney: gibi: I learn from Dave that we get that "guest index inconsistent" error when the migrated RAM is inconsistent with the migrated 'virtio' device state.
15:55:44 kashyap And a common case is where a 'virtio' device does an operation after the vCPU is stopped and after RAM has been transmitted.
15:55:52 kashyap (I'll add a comment in the bug from 2018 with notes)
15:58:22 gibi kashyap: thanks
16:10:36 stephenfin bauzas: Think you could take a look at this this week? https://review.opendev.org/c/openstack/nova/+/756549
16:10:49 bauzas stephenfin: sure, will look
16:10:53 stephenfin ta
16:14:13 openstackgerrit Merged openstack/nova-specs master: Re-proposes 'Proposal for a safer remote console with password authentication https://review.opendev.org/c/openstack/nova-specs/+/759828
16:28:53 openstackgerrit Merged openstack/nova master: Ignore InstanceNotFound exception when host rejoin cluster https://review.opendev.org/c/openstack/nova/+/757053
16:39:14 stephenfin dansmith: I know it's your final day before the new year, but if you've a chance to provide guidance at [1] I'd appreciate it. Would like to close that out this year :) https://review.opendev.org/c/openstack/nova/+/759114/3/nova/db/sqlalchemy/models.py#1212
16:40:19 dansmith stephenfin: ack
16:50:11 kashyap gibi: sean-k-mooney: I've outlined some notes here after my chat with QEMU migration maintainer, FWIW: https://bugs.launchpad.net/nova/+bug/1737625/comments/4
16:50:11 openstack Launchpad bug 1737625 in OpenStack Compute (nova) "live migration failed with "Failed to load virtio-blk:virtio" (libvirt/qemu)" [Undecided,Confirmed]
16:51:03 sean-k-mooney kashyap: we might want to use the other bug
16:51:13 sean-k-mooney and close that as a duplicate
16:51:35 kashyap sean-k-mooney: Isn't this more accurate? It is talking about 'virtio-blk' and the Gate issue also is virtio-blk
16:51:44 sean-k-mooney https://bugs.launchpad.net/nova/+bug/1761798
16:51:44 openstack Launchpad bug 1761798 in OpenStack Compute (nova) "live migration intermittently fails in CI with "VQ 0 size 0x80 Guest index 0x12c inconsistent with Host index 0x134: delta 0xfff8"" [Medium,Confirmed]
16:51:56 sean-k-mooney kashyap: no i dont think it is i think its the same underlying issue
16:52:56 kashyap In any case, I'm copying my comment into this one, too: https://bugs.launchpad.net/nova/+bug/1761798
16:52:56 openstack Launchpad bug 1761798 in OpenStack Compute (nova) "live migration intermittently fails in CI with "VQ 0 size 0x80 Guest index 0x12c inconsistent with Host index 0x134: delta 0xfff8"" [Medium,Confirmed]
18:14:26 openstackgerrit Merged openstack/nova master: virt: Remove 'change_instance_metadata' API https://review.opendev.org/c/openstack/nova/+/749316
18:42:34 openstackgerrit Stephen Finucane proposed openstack/nova master: virt: Remove 'reset_network' API https://review.opendev.org/c/openstack/nova/+/749315
18:42:34 openstackgerrit Stephen Finucane proposed openstack/nova master: virt: Remove 'get_all_bw_counters' API https://review.opendev.org/c/openstack/nova/+/749312
18:42:35 openstackgerrit Stephen Finucane proposed openstack/nova master: objects: Remove 'BandwidthUsage', 'BandwidthUsageList' https://review.opendev.org/c/openstack/nova/+/759114
18:42:35 openstackgerrit Stephen Finucane proposed openstack/nova master: db: Drop models for removed services, features https://review.opendev.org/c/openstack/nova/+/698706
19:12:20 sean-k-mooney stephenfin: ah those are related to xenapi removal
19:16:50 sean-k-mooney i tought it was related to the compute_monitors config intially
19:16:57 sean-k-mooney https://github.com/openstack/nova/blob/120d866df7ab81b666c0e43b97705a90483533bc/nova/conf/compute.py#L107-L126
19:24:02 sean-k-mooney stephenfin: by the way we talked about the metrics weigher and weighing on things that were not compute weights in the past
19:24:06 sean-k-mooney https://github.com/openstack/nova/blob/master/nova/compute/monitors/__init__.py#L40-L48
19:24:17 sean-k-mooney the monitors are a stevaldor entry point
19:24:30 sean-k-mooney and the numa memory bandwtih ones were actully plugins not in tree
19:24:57 sean-k-mooney https://github.com/openstack/nova/blob/c250aca00ba89b6fad86bfaebb3083e9f5c55f3b/nova/compute/monitors/__init__.py#L44 the doc used to reference them years ago
19:28:43 sean-k-mooney well it was propsoed upstream https://review.opendev.org/c/openstack/nova/+/270344
19:28:53 sean-k-mooney but it was not merged
19:31:20 sean-k-mooney https://review.opendev.org/c/openstack/nova-specs/+/180983 was the spec
21:21:27 sean-k-mooney gibi: stephenfin i just realised that https://review.opendev.org/c/openstack/nova/+/653506 is still not merged but its been so long that i have lost most of the context. its still proably should be fixed but im not sure when ill get to it. hopefully soon but i tought this was merged years ago...
#openstack-nova - 2020-11-24
00:10:54 gmann gibi: stephenfin: can you check this sample config fix- https://review.opendev.org/c/openstack/nova/+/762721
00:49:36 brinzhang gibi, dansmith: do you have time to review the cyborg shelve/unshelve support patch, it has addressed all your patch https://review.opendev.org/c/openstack/nova/+/729563
01:38:09 openstackgerrit DatLQ proposed openstack/nova stable/rocky: Fix unplugging VIF when migrate/resize VM https://review.opendev.org/c/openstack/nova/+/763898
01:58:13 openstackgerrit DatLQ proposed openstack/nova stable/rocky: Fix unplugging VIF when migrate/resize VM https://review.opendev.org/c/openstack/nova/+/763898
05:51:22 openstackgerrit Kevin Zhao proposed openstack/nova master: Support Cpu Compararion on Aarch64 Platform https://review.opendev.org/c/openstack/nova/+/763928
07:20:24 openstackgerrit Jorhson Deng proposed openstack/nova-specs master: Add instance_state to ensure volume attachment successful https://review.opendev.org/c/openstack/nova-specs/+/758920
08:05:31 openstackgerrit MIKI Nobuhiro proposed openstack/nova-specs master: Add IP address to libvirt guest metadata https://review.opendev.org/c/openstack/nova-specs/+/760750
08:26:25 openstackgerrit Nobuhiro MIKI proposed openstack/nova-specs master: Add IP address to libvirt guest metadata https://review.opendev.org/c/openstack/nova-specs/+/760750
08:35:59 openstackgerrit Jorhson Deng proposed openstack/nova-specs master: Add instance_state to ensure volume attachment successful https://review.opendev.org/c/openstack/nova-specs/+/758920
10:46:29 openstackgerrit Xinran WANG proposed openstack/nova-specs master: SRIOV Enabled Nic Support Specification https://review.opendev.org/c/openstack/nova-specs/+/742785
11:09:34 lyarwood gibi: morning, could I pester you for a review of https://review.opendev.org/c/openstack/nova/+/756434 - RH owner and stephenfin has already ACK'd so I didn't want to +W it without further review.
11:09:55 gibi lyarwood: ack, looking
11:10:06 lyarwood gibi: thanks
11:11:41 openstackgerrit Stephen Finucane proposed openstack/nova master: objects: Remove 'BandwidthUsage', 'BandwidthUsageList' https://review.opendev.org/c/openstack/nova/+/759114
11:11:42 openstackgerrit Stephen Finucane proposed openstack/nova master: db: Drop models for removed services, features https://review.opendev.org/c/openstack/nova/+/698706
11:14:21 gibi lyarwood: +a
11:16:11 lyarwood gibi: cheers
11:54:32 openstackgerrit Balazs Gibizer proposed openstack/nova master: Make PCI claim NUMA aware during live migration https://review.opendev.org/c/openstack/nova/+/748453
12:22:21 openstackgerrit Balazs Gibizer proposed openstack/nova stable/victoria: Warn when starting services with older than N-1 computes https://review.opendev.org/c/openstack/nova/+/761923
12:22:26 openstackgerrit Balazs Gibizer proposed openstack/nova stable/victoria: Add upgrade check about old computes https://review.opendev.org/c/openstack/nova/+/761924
12:28:45 gibi elod: ^^ did the squash
12:43:33 sean-k-mooney gibi: stephenfin since the autor of https://review.opendev.org/c/openstack/nova-specs/+/760750 ignored my attempt to colabarte and have just one spec i want to get your input on "do i really need a spec"
12:44:11 sean-k-mooney basically i was plannign to update the libvirt metadata with teh flavor extra specs and image proeprties via a specless blueprint
12:44:44 sean-k-mooney this is an internal api used only for debugging so i kind of would prefer to just propose a patch and debate the implemeantion there
12:45:19 sean-k-mooney i can write a spec but its not an api change so it feels kind fo heavy weight to me
12:46:42 stephenfin I think gibi's the only person that can really answer that
12:47:05 gibi do you remember why we asked for a spec for the first place? Now it would be strange to treate the two features differently
12:47:33 stephenfin I think because there were a few design questions and implications for things like attach/detach
12:48:26 sean-k-mooney i can write a spec but the only time the flavor and image will change are resize and rebuild where im regenreating the xml anyway
12:48:44 gibi and resize while changes the flavor it does regen... ^^
12:49:09 gibi then I'm OK with a specless bp

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