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#openstack-nova - 2025-08-19
13:36:13 gibi I suggest to at least try locally with different volume sizes to see if the RSS is depending on the size of the volume
13:36:32 gibi sean-k-mooney: I affraid we might have a new pathological behavior :)
13:37:02 gibi today the test resizes an 1G volume to a 2G volume
13:37:02 sean-k-mooney well i think sinc ethey are now recfacotring things to use stackless corutiens in the newer version of c++
13:37:20 gibi so the test is not really realistic. Out there the volumes are lot bigger
13:37:22 sean-k-mooney that the amoutn of adress space has increase but not nessisarly the amount of commit memory
13:37:32 gibi yeah I agree about that ^^
13:37:36 gibi so RSS is a good direction
13:37:44 sean-k-mooney gibi: in principal this does not matter abot voluems corroct
13:37:56 sean-k-mooney we coudl do some local testign with files of diffent size
13:38:12 sean-k-mooney or do you think the volumes actully play an imporant role
13:38:28 sean-k-mooney oh actully this iss in the rbd code path
13:38:39 sean-k-mooney so we likely do need ceph right?
13:38:42 gibi either the volume, or the fact that it is luksv1 encrypted, or the fact that the test case is resizing plays a role as other test cases does not fail
13:39:05 sean-k-mooney ack so ya we woudl need to test a few diffent ways.
13:39:19 gibi File "/opt/stack/tempest/tempest/api/volume/admin/test_encrypted_volumes_extend.py", line 41, in test_extend_attached_encrypted_volume_luksv1
13:39:21 sean-k-mooney i wonder fi there is a way to log this info
13:39:24 gibi this is the test case that triggers it
13:39:55 sean-k-mooney we porobaly shoudl park this for now but sinc ehte ceph folks are interested i also dont want to loose too much momentem
13:40:04 gibi we call a bunch of qemu-img info during tempest, but only this test trigger the out of memory for qemu-img info
13:40:31 sean-k-mooney ya so dans comment that the encyption may impact it seams valid
13:40:36 gibi yeah I have a bz open on ceph and they are responsive but we don't have a clear non tempest repro for them
13:41:11 sean-k-mooney i was wondering if we coudl create a smaller non openstack repdocuer too
13:41:18 sean-k-mooney that why i was wondering about a file
13:41:40 gibi I copied the volume out of ceph as a file and run the same command it did not failed
13:41:41 sean-k-mooney but we could likely jsut see if we can manually repoduce this with ceph and qemu directly
13:41:51 sean-k-mooney i just dont happen to have a ceph install to hand currently
13:41:53 gibi so rbd is in the picture
13:42:02 sean-k-mooney ack
13:42:32 sean-k-mooney so im wondering is it as simple as create a raw image wiht luks, upload that to ceph as a voluem
13:42:50 sean-k-mooney extend the volume and messure the adress space and rss
13:42:56 sean-k-mooney fo qemu image as you grow it
13:43:19 gibi yeah that can be tried
13:43:39 gibi realistically for me it is not earlier than next week when I can try
13:43:54 sean-k-mooney ya i was goign to say the same
13:43:57 sean-k-mooney post FF
13:44:32 sean-k-mooney i can do the quick RSS hack and push but digging deeper will take more time then ill have before FF or perhaps RC1 is done
13:45:09 gibi ack
14:07:36 dansmith gibi: I wonder if you could look at this conversation: https://review.opendev.org/c/openstack/nova/+/952630/12/nova/conductor/manager.py#322
14:07:52 dansmith I really hate this idea that we have to do a mini data migration (from instance to reqspec) every time we do a move operation
14:08:18 dansmith it feels fragile to me, like we could end up missing that step in some cases, and/or get other weird rebuild/evac/whatever behavior later, and after hours of debugging,
14:08:36 dansmith realize that one instance worked because it had been migrated once (and thus got the reqspec change) and another failed because it had never been migrated
14:09:23 gibi dansmith: OK, added to my list along with the other place https://review.opendev.org/c/openstack/nova/+/942502/13/nova/scheduler/request_filter.py#477 melwitt ping me about yesterday
14:09:27 dansmith (in this case I mean s/migrated/moved in some way/)
14:09:39 dansmith gibi: ack, thanks
14:14:09 dansmith gibi: that's a similar theme to the question above.. all about how we define, choose, and expose the default policy we choose for new instances when they don't otherwise request one
15:01:49 Uggla Hello, nova meeting in ~1h.
15:05:46 jssfr Uggla, I might not make it, but I'd like to bring https://review.opendev.org/c/openstack/nova/+/955657 to the table -- I managed to (hopefully) bring the patch into shape as discussed two weeks ago and I'd appreciate any reviews or feedback :)
15:06:01 jssfr I'll read up on IRC discussion if I'm pinged here, too (but probably I'm going to be preparing dinner at the meeting time :-X) :)
16:00:25 Uggla #startmeeting nova
16:00:25 opendevmeet Meeting started Tue Aug 19 16:00:25 2025 UTC and is due to finish in 60 minutes. The chair is Uggla. Information about MeetBot at http://wiki.debian.org/MeetBot.
16:00:25 opendevmeet Useful Commands: #action #agreed #help #info #idea #link #topic #startvote.
16:00:25 opendevmeet The meeting name has been set to 'nova'
16:00:28 gibi o/
16:00:30 tkajinam o/
16:00:33 Uggla Hello everyone
16:00:33 gmaan o/
16:01:05 Uggla Awaiting a couple of minute so people can join.
16:02:06 Uggla #topic Bugs (stuck/critical)
16:02:06 elodilles o/
16:02:16 Uggla #info No Critical bug
16:02:25 Uggla #topic Gate status
16:02:32 Uggla #link https://bugs.launchpad.net/nova/+bugs?field.tag=gate-failure Nova gate bugs
16:02:39 Uggla #link https://etherpad.opendev.org/p/nova-ci-failures-minimal
16:02:45 Uggla #link https://zuul.openstack.org/builds?project=openstack%2Fnova&project=openstack%2Fplacement&branch=stable%2F*&branch=master&pipeline=periodic-weekly&skip=0 Nova&Placement periodic jobs status
16:02:52 Uggla #info Please look at the gate failures and file a bug report with the gate-failure tag.
16:02:58 Uggla #info Please try to provide a meaningful comment when you recheck
16:03:35 Uggla I checked quickly the report and don't see anything scary.
16:04:38 Uggla #topic tempest-with-latest-microversion job status
16:04:42 gibi we have a security adjacent bug switched to public yesterday. Fix landed on master and stable backports are progressing. https://bugs.launchpad.net/nova/+bug/2112187
16:04:49 Uggla gmaan, do you want to say anything about it ?
16:04:57 gmaan sorry, nothing from me.
16:05:25 Uggla thanks gmaan
16:05:34 Uggla gibi, sorry I was a bit fast.
16:05:53 gibi I just wanted to raise attention to that bug and the related fixes
16:06:16 gibi we need to do a tempest dance to skip some tests, land the nova fix, then re-enable tests with fixes applied
16:06:25 elodilles regarding the sec bug fix: do we want to do stable releases once those fixes landed?
16:06:35 gibi elodilles: yes we want
16:06:57 elodilles gibi: ACK, then I'll prepare some release patches
16:07:00 gibi thanks
16:07:05 elodilles np
16:07:32 Uggla thx elodilles
16:07:39 gibi Uggla: back to you
16:08:45 Uggla #topic Release Planning
16:08:56 Uggla #link https://releases.openstack.org/flamingo/schedule.html
16:09:04 Uggla #info Nova deadlines are set in the above schedule
16:09:11 Uggla #info Feature freeze is next week.
16:09:41 Uggla #topic Review priorities
16:09:50 Uggla #link https://etherpad.opendev.org/p/nova-2025.2-status
16:10:06 Uggla #link Amd Sev serie (tkajinam) need review https://review.opendev.org/q/topic:%22bp/amd-sev-es-libvirt-support%22
16:10:15 Uggla #link 955657: Preserve vTPM state between power off and power on | https://review.opendev.org/c/openstack/nova/+/955657
16:11:35 Uggla Concerning the later one, jssfr woould like reviews or feedbacks.
16:12:12 tkajinam regarding the first one, I've addressed initial feedback by Uggla and appreciate reviews
16:13:04 Uggla tkajinam, I did not manage to spend a lot of time on it. But I'll try to do it before the end of the week.
16:13:43 tkajinam thx
16:13:51 tkajinam I'm concerned that it might be too tricky to be merged in a few days, but any opinion about possibility to get FFE would be also appreciated.
16:16:11 Uggla There are not a lot of patches so maybe it will be possible.
16:16:26 Uggla Anyway we will see.
16:16:31 tkajinam yup
16:16:49 Uggla moving on to next topic

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