| Posted | Nick | Remark | |
|---|---|---|---|
| #openstack-nova - 2026-04-13 | |||
| 17:23:31 | phildree[m] | I have to be honest, I first have to read up on what the PTG exactly is and how it works | |
| 17:24:15 | sean-k-mooney | ack its basically a workign session wehre user/operators/devleoper talk about our plans for the next release and pain points | |
| 17:24:51 | sean-k-mooney | it operats now as a virual event with an eterphad for notes and adgena and jitsi meet as the video confernce tool | |
| 17:25:01 | sean-k-mooney | its free to attend. they used ot be inperson events | |
| 17:25:15 | phildree[m] | Then this would probably make sense from my point of view (even if its just to gain a better understanding of the whole project) | |
| 17:25:23 | sean-k-mooney | if you cant attend thats fine too. | |
| 17:25:42 | gmaan | phildree[m]: I agree with sean-k-mooney that periodic handshake over RPC is expensive especially in scale env | |
| 17:26:26 | sean-k-mooney | gmaan: im kind of wondering if we can maybke marke the node as down sooner by monitoring failed/timedout rpc calls of soemthing liek that | |
| 17:26:35 | gmaan | I also have not read the spec but does compute service up check not enough? that is kind of periodic check if service is down or not | |
| 17:26:44 | sean-k-mooney | i.e. only do a condotor to compute ping in that case to confirm the state | |
| 17:27:26 | sean-k-mooney | gmaan: there was at least one case in the psat where the comptue service is up but the rabbit queue was deleted | |
| 17:27:45 | sean-k-mooney | so it coudl send rpc calles like the status update but not recive them | |
| 17:27:48 | gmaan | " failed/timedout rpc calls" might not give actual result and can end up in false result. | |
| 17:27:59 | sean-k-mooney | https://docs.openstack.org/nova/latest/configuration/config.html#oslo_messaging_rabbit.direct_mandatory_flag was partly added to prevent that | |
| 17:28:06 | phildree[m] | gmaan: I think if you do the service up check it relies on the DB entries based on heartbeats which is exactly what our issues was because the heartbeat may keep working while the requests from conductor to compute failed | |
| 17:28:15 | gmaan | yeah not RPC | |
| 17:28:47 | phildree[m] | Just like sean-k-mooney just described | |
| 17:29:26 | gmaan | yeah, that is true and existing challenge | |
| 17:30:38 | sean-k-mooney | phildree[m]: the reall issue is take an enve with 500 nodes and 3 conductors. we technically ahve a leader election fetrue in the conductor but if we didnt use that ever 300 second (our default perodic interval) we would send 1500 messages 3 form each conduxtor x 500 compute nodes | |
| 17:30:54 | gmaan | so what is actual issue? conductor to compute RPC call fail the it give status to check if compute service is up or not if yes then RPC is down right? | |
| 17:31:34 | sean-k-mooney | in rare cases the compute can be up enough for the status to be up but a call to the compute form the api will fail to boot a vm | |
| 17:31:52 | phildree[m] | In my proposal the handshake is compute initiated in order to avoid leader stuff and states in the conductor | |
| 17:32:37 | sean-k-mooney | phildree[m]: well we typiclly have 3-5 conductors per cell and can have 300-1500 compute per cell in large clouds | |
| 17:33:36 | gmaan | I am not saying 'service up' is reliable source but my question is do we want to automate it in conductor to check compute before call otherwise asl sch to select other dest? or just for clear troubleshooting and error message that what exactly is down? | |
| 17:33:49 | gmaan | s/asl/ask | |
| 17:34:55 | sean-k-mooney | gmaan: ya im not sayign we shoudl do this im just playing devils advocate | |
| 17:35:45 | gmaan | sean-k-mooney: or the healthcheck proposal is good fit here but is the latest proposal check RPC health also? | |
| 17:35:55 | phildree[m] | it like a tcp Syn (compute send a request to any conductor), Syn-Ack (conductor replies to that tiny request), Ack (compute initiates the regular heartbeat as is) | |
| 17:35:55 | phildree[m] | This way when any part of the communction is broken the node does not appear as up | |
| 17:35:55 | phildree[m] | But in order to reduce RPCs i think also just a periodic ping without compute base initiation might be feasible but will have the issue of coordination etc.. | |
| 17:36:21 | sean-k-mooney | gmaan: it was goign to catch connection closed events and similar on the comptue and report if the rpc bus was working | |
| 17:36:26 | sean-k-mooney | but not by active probing | |
| 17:36:34 | sean-k-mooney | only by recoreding if we got an excption | |
| 17:36:34 | gmaan | k | |
| 17:36:41 | sean-k-mooney | so it woudl not really help in this case | |
| 17:36:41 | gmaan | ++ | |
| 17:36:50 | gmaan | yeah | |
| 17:38:53 | gmaan | do not have any perfect solution as of now but let's discuss it in PTG | |
| 17:39:47 | phildree[m] | Ok, thanks anyway for the engagement, I really appreciate you guys taking your time :) | |
| 19:20:17 | opendevreview | Merged openstack/nova stable/2026.1: fix: device_by_alias should respect config type https://review.opendev.org/c/openstack/nova/+/983989 | |
| 19:58:52 | opendevreview | John Garbutt proposed openstack/nova master: Make PCPUs not land on VCPUs by default https://review.opendev.org/c/openstack/nova/+/975779 | |
| 19:59:20 | opendevreview | John Garbutt proposed openstack/nova master: Fix ironic instance rebuild with API >=2.93 https://review.opendev.org/c/openstack/nova/+/963298 | |
| 20:24:21 | melwitt | dansmith: there is one more small patch that was split out from the 'user' live migration patch that is ready for review at your convenience https://review.opendev.org/c/openstack/nova/+/983505 | |
| 21:00:29 | dansmith | ah yep, the other one, sorry I guess I missed that when hitting the first one | |
| 21:00:30 | dansmith | done now | |
| 21:16:32 | melwitt | dansmith: thanks!! | |
| 22:46:32 | opendevreview | melanie witt proposed openstack/nova master: [WIP] how borken is ipv6 only ceph. https://review.opendev.org/c/openstack/nova/+/982302 | |
| 22:51:07 | opendevreview | melanie witt proposed openstack/nova master: [WIP] how borken is ipv6 only ceph. https://review.opendev.org/c/openstack/nova/+/982302 | |
| #openstack-nova - 2026-04-14 | |||
| 00:30:42 | opendevreview | melanie witt proposed openstack/nova master: CellDatabases: replace shared lock with thread-local cell routing https://review.opendev.org/c/openstack/nova/+/984480 | |
| 00:30:43 | opendevreview | melanie witt proposed openstack/nova master: Database: use file-backed SQLite for native threading https://review.opendev.org/c/openstack/nova/+/984481 | |
| 00:38:55 | melwitt | sean-k-mooney, gibi: I had read through the review comments on some database fixture patches yall have been working on and tried a couple of changes to try and help out ^ they may not be useful given my limited knowledge on the eventlet removal work | |
| 00:40:38 | melwitt | I have them rebased on Ashish's change https://review.opendev.org/c/openstack/nova/+/979850. the second patch complains of merge conflict for some reason though | |
| 01:02:48 | opendevreview | melanie witt proposed openstack/nova master: Database: use file-backed SQLite for native threading https://review.opendev.org/c/openstack/nova/+/984481 | |
| 01:15:45 | opendevreview | melanie witt proposed openstack/nova master: Database: use file-backed SQLite for native threading https://review.opendev.org/c/openstack/nova/+/984481 | |
| 06:20:42 | opendevreview | Merged openstack/nova master: mem-enc: stop using _get_mem_encryption_config() for SEV checks https://review.opendev.org/c/openstack/nova/+/967970 | |
| 07:14:59 | gibi | melwitt: thanks for that. I wil check it out | |
| 07:38:07 | opendevreview | Kamil Sambor proposed openstack/nova master: Enable threading mode for proxy services https://review.opendev.org/c/openstack/nova/+/976089 | |
| 07:42:05 | opendevreview | Kamil Sambor proposed openstack/nova master: Enable threading mode for proxy services https://review.opendev.org/c/openstack/nova/+/976089 | |
| 08:21:43 | gibi | bauzas: stephenfin: can one of you push this CI timeout bump through https://review.opendev.org/c/openstack/nova/+/984417 | |
| 08:45:03 | opendevreview | Konrad Gube proposed openstack/nova-specs master: Propose assisted-volume-extend API https://review.opendev.org/c/openstack/nova-specs/+/949504 | |
| 09:25:37 | opendevreview | Kamil Sambor proposed openstack/nova master: Change nova-alt-configurations job https://review.opendev.org/c/openstack/nova/+/983179 | |
| 09:31:09 | opendevreview | ribaudr proposed openstack/nova master: Add reproducer for bug #2141722 https://review.opendev.org/c/openstack/nova/+/984521 | |
| 09:31:10 | opendevreview | ribaudr proposed openstack/nova master: Fix os-simple-tenant-usage pagination with duplicate instance_extra https://review.opendev.org/c/openstack/nova/+/984522 | |
| 10:10:06 | Uggla | sean-k-mooney, I have opened https://blueprints.launchpad.net/nova/+spec/adopt-port-trusted-vif-extension and add a comment in the bug to it. Please tell me if ok. | |
| 10:33:01 | opendevreview | Merged openstack/nova master: [openstack-tox-cover]Increase timeout further https://review.opendev.org/c/openstack/nova/+/984417 | |
| 10:44:42 | opendevreview | sean mooney proposed openstack/nova master: add agentic coding scaffold and contributor docs https://review.opendev.org/c/openstack/nova/+/984540 | |
| 12:46:22 | opendevreview | Kamil Sambor proposed openstack/nova master: Enable threading mode for proxy services https://review.opendev.org/c/openstack/nova/+/976089 | |
| 13:08:41 | opendevreview | Merged openstack/nova master: mem-enc: refactor memory encryption trait logic for extensibility https://review.opendev.org/c/openstack/nova/+/967971 | |
| 13:58:52 | opendevreview | Balazs Gibizer proposed openstack/nova master: Speed up RetryDecorator in unit test https://review.opendev.org/c/openstack/nova/+/975443 | |
| 13:58:52 | opendevreview | Balazs Gibizer proposed openstack/nova master: [py313-threading]Reenable last scatter-gather unit test https://review.opendev.org/c/openstack/nova/+/984349 | |
| 13:59:28 | opendevreview | Balazs Gibizer proposed openstack/nova master: Speed up RetryDecorator in unit test https://review.opendev.org/c/openstack/nova/+/975443 | |
| 13:59:28 | opendevreview | Balazs Gibizer proposed openstack/nova master: [py313-threading]Reenable last scatter-gather unit test https://review.opendev.org/c/openstack/nova/+/984349 | |
| 14:21:51 | artem_vasilyev | Hi, could you please take a look at a Nova bug I’ve been investigating: https://bugs.launchpad.net/nova/+bug/2147776 (with reproducer tests https://review.opendev.org/c/openstack/nova/+/984007) and the proposed fix https://review.opendev.org/c/openstack/nova/+/984048 - it addresses a race between resize and update_available_resources affecting dedicated CPU accounting | |
| 15:05:58 | Uggla | gibi, regarding you eventlet topic. Would you prefer to have it after the "global" eventlet session (tue) ? | |
| 15:06:38 | Uggla | or it doesn't matter. | |
| 15:29:11 | Uggla | TheJulia, dansmith Thu 1500-1600UTC : Attestation integration Plugin (1h) does it work for you ? | |
| 15:31:13 | lajoskatona | Uggla: Hi, there is perhaps a beehive like topic (sorry for that) to use SDK for neutron to nova notifications (os-server-external-events API call ), see my patch in SDK: | |
| 15:32:25 | lajoskatona | Uggla: https://review.opendev.org/c/openstack/openstacksdk/+/983904 (and in Neutron to use the SDK patch: https://review.opendev.org/c/openstack/neutron/+/983905 ) we discussed today's Neutron meeting that perhaps this is a topic to chat during the PTG | |
| 15:35:17 | melwitt | bauzas: hi, there are a few small vtpm related patches that would appreciate your review if you get a chance please https://review.opendev.org/c/openstack/nova/+/978836 https://review.opendev.org/c/openstack/nova/+/983504 https://review.opendev.org/c/openstack/nova/+/983505 | |
| 15:36:24 | Uggla | lajoskatona, please add the topic at the end of the PTG doc, if not already done. | |
| 15:37:05 | bauzas | melwitt: ack | |
| 15:37:13 | Uggla | lajoskatona, then I will check if that will be an "individual" topic or something in a X session. (Note the X session with Neutron is not yet defined). | |
| 15:44:06 | Uggla | dansmith Get on the same page about unpinning availability zone --> how much time do you need ? 1h ? 30 mn ? | |
| 15:56:01 | croelandt | bauzas: hey! I just came across https://github.com/sbauza/openstack-agentic-workflows , which at the moment seems mostly used for Nova. In its current form, /code-review can only be used for Nova, if I'm not mistaken. Would you be open to having a /openstack-code-review skill that dispatches the review of a given patch to project-specific agents? | |
| 15:56:36 | TheJulia | Uggla: that window works for me | |
| 15:57:06 | bauzas | croelandt: this is more a demonstrating POC at the moment for the Nova repository indeed, but other projects could add their own knowledge files for each of them | |
| 15:59:06 | lajoskatona | Uggla: thanks, I added it | |
| 15:59:26 | croelandt | bauzas: yeah but if I define workflows/glance-review/.claude/skills/code-review/SKILL.md , then /code-review will be defined twice, right? | |
| 16:00:56 | bauzas | good call, I could change the skill name to be nova-specific | |
| 16:01:26 | croelandt | yeah so at first you'd have nova-review and we'd have glance-review | |
| 16:01:36 | croelandt | wanna do it or want me to send a PR tonight? :) | |
| 16:01:56 | bauzas | croelandt: I already have some LLM session somewhere so I can fix that quickly :) | |
| 16:02:04 | croelandt | I could get CLaude to do it and try to understand the code better while I'm at it | |
| 16:02:22 | croelandt | bauzas: you say it's more of a POC but are you open to merging stuff for other projects? | |
| 16:02:27 | bauzas | croelandt: yeah all the PRs were generated by LLMs and only curated by me | |
| 16:02:40 | croelandt | ok so I'll try and send PRs :p | |
| 16:02:53 | croelandt | well I'll try not to write a single line and let Claude do it | |
| 16:03:15 | bauzas | croelandt: I'd prefer to have the knowledge files to be on the upstream repos, but for skills, it could be on other repos | |
| 16:03:48 | croelandt | hm not sure I get it | |
| 16:03:59 | croelandt | you want to move knowledge/nova.md somewhere else? | |