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#openstack-nova - 2021-10-08
10:35:32 gibi cool, I can check the dates then
10:35:36 gibi sean-k-mooney: thanks a lot
10:36:08 gibi so the solution is fresh enough networking-odl to have plug time event, and the in yoga think about waiting for plug time event at reboot as well
10:36:15 sean-k-mooney no worries assuming we can confirm this works today we could add odl also to the list of "send plug events" or whatever and then start waiting
10:36:29 sean-k-mooney yep
10:36:52 gibi does neutron have odl jobs in the upstream ci?
10:36:53 sean-k-mooney so we dont really need to wait for the ptg to discuss this i just have not had time to work on a spec
10:37:05 sean-k-mooney good question im not sure
10:37:10 gibi ok I will check that too
10:37:12 sean-k-mooney i suspect not
10:37:24 sean-k-mooney networking-odl should have jobs however
10:37:48 gibi ahh good point that is a separate repo with it own jobs
10:38:05 sean-k-mooney https://opendev.org/openstack/networking-odl/src/branch/master/.zuul.d/project.yaml#L51-L52
10:38:26 sean-k-mooney it also has multi node versions
10:38:38 gibi cool then we can have test coverage upstream about the change
10:39:06 sean-k-mooney am on thing i have been talking to artom about is possible adding some other network toplogies to nova's gate as a periodic
10:39:49 sean-k-mooney so right now we have ovs with iptables in nova-next, we have ovn for most things and linux bridge for some file changes
10:40:16 sean-k-mooney it might be nice to add a weekly multi node odl and ml2/ovs job
10:40:41 sean-k-mooney weekly multi-node job that is to tesst migration and resize ectra
10:41:09 gibi I would expect that some of this coverage is already running on the neutron side
10:41:34 gibi but if not then I agree we can add it
10:41:43 sean-k-mooney that will tell them if we break things but only if the project is activly beign developed
10:42:33 sean-k-mooney it looks like networking-odl for example only gets comiits every month or so
10:42:48 gibi yeah, that is a good point too
10:43:02 gibi then we need the periodic to trigger testing even if networking-odl is not changed
10:43:47 sean-k-mooney yep just to make sure we did not break something. but really weekly is more then enought i think
10:43:56 sean-k-mooney we can review it like the placment jobs
10:44:41 gibi yepp, agree
10:45:04 sean-k-mooney gibi: i would also like to add dpdk at some point but i have not been maintaining networking-ovs-dpdk so i will need to add devstack support for dpdk or fix it before thats even posible at this poing
10:45:07 sean-k-mooney *point
10:46:00 gibi I support that idea too. Downstream we use dpdk a lot, so would be nice to get coverage for it upstream.
10:46:15 sean-k-mooney fortunetly on the dpdk front its support by distros now so its now just a matter of turning it on and seting a few config values but still need to sit down and do that
10:46:38 gibi let me know if I can help
10:47:00 sean-k-mooney sure will do. when i get around to workign on the devstack patches ill let you know
11:09:46 opendevreview sean mooney proposed openstack/nova master: Ensure MAC addresses characters are in the same case https://review.opendev.org/c/openstack/nova/+/811947
11:14:44 sean-k-mooney noonedeadpunk: hopefully you dont mind me updateing ^
11:15:07 sean-k-mooney gibi: can you take a look at ^ when you have time
11:16:26 gibi ack I will try
11:19:48 noonedeadpunk sure I'm not!
12:20:59 opendevreview Lee Yarwood proposed openstack/nova-specs master: WIP libvirt: Allow Manila shares to be directly attached to instances https://review.opendev.org/c/openstack/nova-specs/+/813180
14:37:22 lyarwood stupid Friday question but can anyone think of an API where we've changed the return code in a microversion? I want to fix the POST os-volume_attachments method to return 202 but I can't think of the best way to do this
14:39:17 lyarwood ah nvm I see just duplicate the actual method and decorate it
15:00:02 bauzas lyarwood: correct, I was about to point it to you
15:00:09 bauzas (sorry for the late ping, kids taxi)
15:00:20 bauzas lyarwood: do you want to discuss on your spec ?
15:00:20 stephenfin lyarwood: There are quite a few APIs that suffer from that issue. Are you just going to do the one or multiple?
15:04:11 bauzas lyarwood: fwiw, I'm leaving in 25 mins for the weekend
15:06:43 lyarwood bauzas: sorry was just getting a drink, happy to chat now if you had any questions etc
15:06:59 bauzas I briefly looked at your spec
15:07:21 lyarwood stephenfin: just os-volume_attachments for now but I'll likely start to address others once I've worked this out
15:07:48 lyarwood I'm not sure if people would prefer a single microversion for everything etc
15:08:10 dansmith so, I'm pretty sure that we originally said we wouldn't do microversions for things like this
15:08:27 bauzas if 500, yes
15:08:31 lyarwood that would make my life easier
15:08:31 dansmith because nobody is going to opt-in to a new return code, or opt out (back?) to the old one
15:08:38 sean-k-mooney dont we requrie a microversion if you are chaning the reponcoe code to one that is not currently used
15:08:42 bauzas I mean, 500 to something clearer, not a microversion
15:08:45 dansmith if you're changing other things about the api, then doing the return code as part of it makes sense
15:08:54 dansmith but not just a "2.98: change a bunch of 200s to 202s"
15:08:54 bauzas sec, giving you the API rules
15:09:13 sean-k-mooney well 200 to 202 is blocking to async
15:09:16 lyarwood I wonder why we have TODOs everywhere for this then
15:09:19 dansmith sean-k-mooney: yeah, I'm not saying do it without a microversion, I'm saying don't do it unless there's something else changing
15:09:44 lyarwood oh sorry I see
15:09:53 sean-k-mooney https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/202
15:09:58 lyarwood well tbh it's never going to get done in that case
15:10:33 sean-k-mooney lyarwood: you want to move this to be an async api yes?
15:10:40 dansmith if we
15:10:44 bauzas https://specs.openstack.org/openstack/api-wg/guidelines/microversion_specification.html for the API general rules
15:10:46 lyarwood sean-k-mooney: it already is
15:10:55 sean-k-mooney oh then 200 is wrong ya
15:10:58 bauzas https://docs.openstack.org/nova/latest/contributor/microversions.html#when-do-i-need-a-new-microversion for nova specifics
15:10:58 lyarwood yes
15:11:04 dansmith are moving it from sync to async, then *of course* it makes sense to change, but just a microversion for changing the return code but not the behavior is kinda silly
15:11:22 sean-k-mooney right
15:11:28 sean-k-mooney im more ok with not haveing a microversion
15:11:32 sean-k-mooney if we are not changing behavior
15:11:35 sean-k-mooney just the return code
15:11:44 dansmith I'm not saying we should do that
15:11:46 bauzas technically, we agreed on asking for a microversion https://docs.openstack.org/nova/latest/_images/graphviz-a4c9682faf139450eed50fdcc7dd06df5677c197.png
15:12:04 bauzas unless it was changing from HTTP500
15:12:05 dansmith I'm saying returning 200 for an async api that has always been async is unfortunate, but not that big of a deal
15:12:07 sean-k-mooney dansmith: you are say until we modify tese again dont change it
15:12:14 dansmith sean-k-mooney: yes
15:12:32 dansmith nobody is going to opt-in to "no new behavior but a more accurate return value"
15:12:45 sean-k-mooney i think that is also reasonable becasue of ^
15:12:48 bauzas but we mention something :
15:12:50 bauzas "
15:12:50 bauzas The exception to not needing a microversion when returning a previously unspecified error code is the 400, 403, 404 and 415 cases. This is considered OK to return even if previously unspecified in the code since it’s implied given keystone authentication can fail with a 403 and API validation can fail with a 400 for invalid json request body. Request to url/resource that does not exist always fails with 404. Invalid content typ
15:12:50 bauzas es are handled before API methods are called which results in a 415.
15:12:50 bauzas "
15:12:57 lyarwood right but at least it's fixed later when they opt-in to some other change
15:13:06 dansmith bauzas: that has nothing to do with this case
15:13:15 bauzas nothing tells us to not ask for a microversion if changing from 200
15:13:25 bauzas dansmith: sure, I was just looking at what we wrote :)
15:13:45 bauzas to see whether we said "cool if 200 -> 202 and async"
15:13:50 sean-k-mooney bauzas: under that policy we sould have to do a microversion but there is no untily in changing the repssonce doe and making it opt in
15:13:51 dansmith lyarwood: right but all of those kinds of death-by-1000-cuts things impact people, which is why we didn't do a massive cleanup early on
15:14:10 dansmith lyarwood: right now if you know that api returns 200 and you check for 200, then returning 202 could break client code even though absolutely nothing has changed
15:14:25 dansmith it'd be bad client code, granted, but.. it's pain for pretty much no gain

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