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| openstackgerrit | Merged openstack/python-novaclient master: Microversion 2.63 - Add trusted_image_certificates https://review.openstack.org/500396 | 00:52 |
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| openstackgerrit | Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (10) https://review.openstack.org/576017 | 01:47 |
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| openstackgerrit | Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (11) https://review.openstack.org/576018 | 02:00 |
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| vpc | hi | 02:04 |
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| openstackgerrit | Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (12) https://review.openstack.org/576019 | 02:09 |
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| openstackgerrit | Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (13) https://review.openstack.org/576020 | 02:20 |
| openstackgerrit | Dinesh Bhor proposed openstack/nova master: PCPU: Define numa dedicated CPU resource class https://review.openstack.org/561770 | 02:21 |
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| openstackgerrit | Dinesh Bhor proposed openstack/nova master: PCPU: Define numa dedicated CPU resource class https://review.openstack.org/561770 | 02:24 |
| openstackgerrit | Dinesh Bhor proposed openstack/nova master: PCPU: Add respective conf options https://review.openstack.org/561771 | 02:24 |
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| openstackgerrit | Dinesh Bhor proposed openstack/nova master: PCPU: Add respective conf options https://review.openstack.org/561771 | 02:27 |
| openstackgerrit | Dinesh Bhor proposed openstack/nova master: NUMACell, InstanceNUMACell: Adopt 'PCPU' changes https://review.openstack.org/576021 | 02:27 |
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| openstackgerrit | Merged openstack/python-novaclient master: Modify novaclient to support basic attributes https://review.openstack.org/572285 | 02:45 |
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| openstackgerrit | Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (14) https://review.openstack.org/576027 | 04:38 |
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| openstackgerrit | Dinesh Bhor proposed openstack/os-traits master: Adds HW_CPU_HYPERTHREADING standard trait https://review.openstack.org/576030 | 04:51 |
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| vpc | [ 240.899040] ipmi_si: Unable to find any System Interface(s) | 05:06 |
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| vpc | anyonce | 05:10 |
| vpc | can help me | 05:10 |
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| openstackgerrit | Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (15) https://review.openstack.org/576031 | 05:30 |
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| openstackgerrit | garyk proposed openstack/nova master: Prevent compute manager freeze when greenpool is full https://review.openstack.org/575034 | 05:48 |
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| openstackgerrit | Dinesh Bhor proposed openstack/nova master: NUMACell, InstanceNUMACell: Adopt 'PCPU' changes https://review.openstack.org/576021 | 06:22 |
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| openstackgerrit | Vishakha Agarwal proposed openstack/python-novaclient master: No requirement of –all-tenants while listing servers https://review.openstack.org/569090 | 06:44 |
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| vpc | hi guys | 07:07 |
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| vpc | hi guys | 07:08 |
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| kashyap | melwitt: Yeah, sorry. Time zone delays :-) I see that you noticed the reply in the backlog. | 07:19 |
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| gibi | finucannot: I think this is ready to go now https://review.openstack.org/#/c/561284/ | 07:44 |
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| openstackgerrit | Takashi NATSUME proposed openstack/nova master: api-ref: Fix parameters about trusted certificate IDs https://review.openstack.org/576046 | 07:50 |
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| gibi | melwitt: see my answer about the bandwidth series dependency on nested series in the etherpad https://etherpad.openstack.org/p/nova-rocky-blueprint-status | 08:00 |
| gibi | vpc: I don't have the knowledge :/ | 08:00 |
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| openstackgerrit | garyk proposed openstack/nova master: Resource tracker: improve resource tracker periodic task https://review.openstack.org/576052 | 08:30 |
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| openstackgerrit | karim proposed openstack/nova master: Update scheduler to use image-traits https://review.openstack.org/576054 | 08:41 |
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| openstackgerrit | Merged openstack/nova stable/queens: Fix the file name of development-environment.rst https://review.openstack.org/574175 | 08:47 |
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| openstackgerrit | Stephen Finucane proposed openstack/nova master: placement: Make API history doc more consistent https://review.openstack.org/477478 | 09:02 |
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| openstackgerrit | Andrey Volkov proposed openstack/nova master: Update nova network info when doing rebuild for evacuate operation https://review.openstack.org/382853 | 10:40 |
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| openstackgerrit | jichenjc proposed openstack/nova master: z/VM Driver: Initial change set of z/VM driver https://review.openstack.org/523387 | 10:50 |
| openstackgerrit | jichenjc proposed openstack/nova master: z/VM Driver: Spawn and destroy function of z/VM driver https://review.openstack.org/527658 | 10:50 |
| openstackgerrit | jichenjc proposed openstack/nova master: z/VM Driver: add snapshot function https://review.openstack.org/534240 | 10:51 |
| openstackgerrit | jichenjc proposed openstack/nova master: z/VM Driver: add power actions https://review.openstack.org/543340 | 10:51 |
| openstackgerrit | jichenjc proposed openstack/nova master: z/VM Driver: add get console output https://review.openstack.org/543344 | 10:51 |
| openstackgerrit | Vladyslav Drok proposed openstack/nova master: ironic: Report resources as reserved when needed https://review.openstack.org/517921 | 10:52 |
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| gibi | easy doc update needs a second +2 https://review.openstack.org/#/c/574890/ | 10:55 |
| gibi | btw I think that is the last piece of the nova-validate-certificates bp | 10:56 |
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| openstackgerrit | garyk proposed openstack/nova master: Resource tracker: remove costly copy https://review.openstack.org/576099 | 11:00 |
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| cdent | efried: I have a question for you about powervm plans. Have you explored theoretical upper limits on number of instances in/on a compute node? In vmware-land we've discovered there are some inefficiences in the way data is managed in the resource tracker that can present some problems. | 11:17 |
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| stephenfin | gibi: Done and done | 11:29 |
| gibi | stephenfin: thanks and thanks :) | 11:29 |
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| openstackgerrit | Rajesh Tailor proposed openstack/nova master: Fix case-sensitivity for metadata keys https://review.openstack.org/504885 | 12:14 |
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| sahid | gibi: if you have a moment to ACK that one https://review.openstack.org/#/c/572699/ | 12:43 |
| gibi | sahid: looking | 12:43 |
| openstackgerrit | Merged openstack/nova master: Add trusted certs to feature support matrix docs https://review.openstack.org/574890 | 12:44 |
| gibi | sahid: +W | 12:45 |
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| sahid | gibi: thanks | 12:46 |
| gibi | sahid: thank you for the cleanup | 12:46 |
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| efried | cdent: I'm sure the PowerVC guys have some idea about that. edmondsw? (The question was: "Have you explored theoretical upper limits on number of instances in/on a compute node? In vmware-land we've discovered there are some inefficiences in the way data is managed in the resource tracker that can present some problems.") | 12:59 |
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| cdent | the latest is that there are some deepcopy of self.stats happening which may not be required | 13:00 |
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| efried | cdent: You're talking about the n-cpu service choking at a certain number of VMs? | 13:02 |
| cdent | efried: exhibiting less than ideal load at >N VMs | 13:03 |
| cdent | sometimes choking | 13:03 |
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| edmondsw | efried cdent we support a max of 1000 VMs per compute node | 13:06 |
| efried | cdent: Sounds like something you may want to ask CERN about. | 13:06 |
| efried | edmondsw: Is that a Power limit or an OpenStack limit? | 13:06 |
| edmondsw | that's a PowerVC statement | 13:06 |
| edmondsw | I'm not sure all of what went into picking that number | 13:06 |
| efried | okay, so really just "nothing has broken down at this point, and we don't want to commit to testing more than that, and what do you think you need more than that for anyway??" | 13:07 |
| cdent | efried: what does cern have to do with this, don't they kvm? (where the hardware presents physical limits. The issue for vmware is that it is possible to have a lot of hardware in one vcenter (which is tied to one compute node) | 13:07 |
| cdent | it's not the recommend form to have a lot of nodes in one vcenter, but people do | 13:07 |
| cdent | problems seem to start showing up around 1500 instances (whatever the hardware) on one compute node | 13:08 |
| edmondsw | cdent I was wondering how someone would ever get up to a high number of VMs in x86 land :) | 13:08 |
| efried | cdent: ohh, I see. We don't have more than one hardware node per n-cpu. But our hardware nodes can be big and hold a lot of VMs. | 13:08 |
| edmondsw | efried cdent maybe ask the Z guys? | 13:09 |
| efried | cdent: In that sense, the only difference with kvm is that we're hosting the VMs on the hardware, not within the controller VM. | 13:09 |
| efried | yeah, I was wondering about z. | 13:10 |
| efried | Pretty sure they also only use one hardware node, but not sure how many VMs they can handle. | 13:10 |
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| edmondsw | a lot | 13:10 |
| cdent | the limits show up when the count of instances goes high, so it sounds like it would impact you guys too | 13:10 |
| efried | I was kinda thinking they would typically have biggish VMs, but no reason to think that. | 13:10 |
| cdent | things like syncing power state info | 13:10 |
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| efried | cdent: Well, it sounds like we cut you off at 1000 from a support statement standpoint, so... | 13:11 |
| * cdent nods | 13:11 | |
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| efried | I guess as soon as someone demands more, we'll see. | 13:11 |
| cdent | are you interested in/excited by/disturbed by making that limit higher? | 13:11 |
| cdent | jinxish | 13:11 |
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| cdent | it appears that going higher is relatively straightfoward. the limits are basically of the "oh we didn't think of that" variety | 13:11 |
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| efried | cdent: Oh, is there some hardcoded limit somewhere? I was getting the impression it was more of an overload. | 13:15 |
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| edmondsw | efried cdent I am told that PowerVC chose 1000 because PowerVM itself only supports 1000 per node | 13:19 |
| efried | okay, fair enough. | 13:20 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova master: Revert "Re-using the code of os brick cinder" https://review.openstack.org/576136 | 13:23 |
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| openstackgerrit | Julia Kreger proposed openstack/nova master: ironic: bugfix: ensure a host is set for volume connectors https://review.openstack.org/571982 | 13:33 |
| mriedem | i've moved certs validation out of the runway, it's complete | 13:33 |
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| mriedem | alex_xu: is https://review.openstack.org/#/c/560317/ ready for a runway slot? | 13:33 |
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| cdent | efried: no, no hardcoded limit (that I'm aware of). | 13:35 |
| mriedem | it looks like it probably is... | 13:35 |
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| mriedem | bauzas: consecutive build failure weigher backport to pike is ready to go https://review.openstack.org/#/c/573248/ | 13:40 |
| openstackgerrit | Stephen Finucane proposed openstack/nova master: conf: Deprecate 'network_manager' https://review.openstack.org/530923 | 13:40 |
| bauzas | mriedem: roger. | 13:41 |
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| stephenfin | mdbooth, mriedem: There was a follow-up fix required for this, right? Do you recall what it was? https://review.openstack.org/#/c/524681/ | 13:41 |
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| stephenfin | Trying to decide whether to fix or abandon the backports I have proposed | 13:42 |
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| mriedem | i don't remember off the top of my head | 13:42 |
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| bauzas | mriedem: +W'aboom | 13:46 |
| * bauzas goes back to stupid paperwork thingies | 13:47 | |
| openstackgerrit | Stephen Finucane proposed openstack/nova master: Simplify instance name generation https://review.openstack.org/516573 | 13:47 |
| mriedem | bauzas: thanks | 13:47 |
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| alex_xu | mriedem: let me do a review on it first | 13:50 |
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| mriedem | tssurya: i put something together this morning https://bugs.launchpad.net/nova/+bug/1777458 | 14:08 |
| openstack | Launchpad bug 1777458 in OpenStack Compute (nova) "Listing instances with a marker that is in the build_requests table and the ip/ip6 filters results in an error" [High,Triaged] - Assigned to Matt Riedemann (mriedem) | 14:08 |
| mriedem | working a fix now, but have a functional test recreate | 14:08 |
| tssurya | I saw it just now | 14:08 |
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| tssurya | oh new bug! I was checking the update here: https://review.openstack.org/#/c/575556/ | 14:11 |
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| tssurya | mriedem: I also have something which is a very dirty POC (without version bumps yet, see comment) : https://review.openstack.org/#/c/575996/ for the spec, however I just wanted to know if you and gibi were thinking something similar for linking the "is this cell down" to adding the uuids to the new top key. Please have a look whenever you have the time | 14:13 |
| gibi | tssurya: ack | 14:14 |
| tssurya | gibi: thanks | 14:14 |
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| vpc | can i use pxe_ssh as a driver for my ironic since my hardware is dont have ipmi | 14:38 |
| artom | If it's real hardware I'm pretty you need ipmi... | 14:39 |
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| gibi | tssurya: I left some idea inline https://review.openstack.org/#/c/575996/ | 14:45 |
| tssurya | gibi: yep, checking thanks a lot | 14:45 |
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| vpc | artom yes it is real hardware | 14:47 |
| ZZellefr | garyk: Hi | 14:47 |
| artom | vpc, so I'm no Ironic expert, but thinking about it logically, you need ipmi | 14:47 |
| vpc | i have this 2 module | 14:47 |
| artom | Otherwise how are you going to get an OS to run on the machine? | 14:47 |
| vpc | ipmi_msghandler | 14:48 |
| vpc | and ipmi_devintf | 14:48 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova master: Fix regression when listing build_requests with marker and ip filter https://review.openstack.org/576161 | 15:00 |
| mriedem | tssurya: dansmith: melwitt: ^ | 15:00 |
| mriedem | that's also regressed in queens | 15:00 |
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| openstackgerrit | Stephen Finucane proposed openstack/nova master: metadata: Add '[metadata] domain_name' option https://review.openstack.org/480616 | 15:07 |
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| stephenfin | mriedem, dansmith, <anyone else who was in the nova-neutron cross-project talk>: I took the easy out with that dhcp_domain name deprecation thing. Context in the commit message. Lemme know if you (dis)agree, please :) | 15:08 |
| dansmith | mriedem: melwitt is out this week | 15:08 |
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| mriedem | oh that's right | 15:09 |
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| dansmith | stephenfin: I thought the easy out is just not touching what we have and undeprecating it? | 15:09 |
| mriedem | stephenfin: easy out? | 15:09 |
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| mriedem | stephenfin: there was an agreed-to plan to fix the issue, did you or did you not follow that plan? | 15:10 |
| dansmith | because a new thing means everyone has to change config afaict | 15:10 |
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| stephenfin | mriedem: There were two option but no clear indication which one to go for https://etherpad.openstack.org/p/YVR18-novaneutron-ops-cross-project-session | 15:11 |
| mriedem | option 2, L35 | 15:11 |
| dansmith | I thought the clear way was identified as just leaving what we had | 15:11 |
| mriedem | "change the dhcp_domain default to None and check that in the code; if not set, default to 'novalocal' which is the previous default; then check if network.dns_domain is set and if so, you use it, else something something use dhcp_domain...." | 15:11 |
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| cdent | something I forgot to ask in scheduler meeting: should we seek spec freeze exception on https://review.openstack.org/#/c/552105/ ? melwitt, jaypipes ? | 15:12 |
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| stephenfin | mriedem: Right, option two of two. Option one is still valid, no? | 15:12 |
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| mriedem | stephenfin: no, we agreed on option 2 during the session | 15:13 |
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| dansmith | stephenfin: even still your patch isn't option 1 either is it? | 15:13 |
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| mriedem | it's not | 15:14 |
| dansmith | that's what I'm trying to get at | 15:14 |
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| stephenfin | dansmith: It's a variant of 1. I figured we could take the option to clean this up while we were at it, as we've done extensively in the past. "dhcp_domain" makes no sense, right? | 15:14 |
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| stephenfin | mriedem: Your recollection of that differs from mine. I don't recall anyone stating a reason _to_ enable neutron integration | 15:15 |
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| dansmith | stephenfin: my recollection matches mriedem's as well | 15:16 |
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| stephenfin | while there were a few reasons not to (it's not always available, it'll break configurations, there are multiple ways this can be configured in neutron) | 15:16 |
| dansmith | stephenfin: right so you give it priority if it's defined | 15:16 |
| dansmith | if not, you fall back to the conf value | 15:16 |
| dansmith | and I don't think I heard anything in the room about changing the conf option, | 15:17 |
| mriedem | yeah that's what i remember, we have a priority order | 15:17 |
| mriedem | one of which is allowing using the network.dns_domain from neutron | 15:17 |
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| stephenfin | Hmm, that takes us firmly into feature territory | 15:18 |
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| stephenfin | A feature that, again, I didn't hear anyone actually ask for | 15:18 |
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| dansmith | who else was in there, gibi ? | 15:18 |
| * mriedem queues this up for berlin | 15:19 | |
| mriedem | i know sorrison was in the room | 15:19 |
| stephenfin | dansmith: gibi and melwitt, I think. Not sure about bauzas | 15:19 |
| dansmith | melwitt is out this week | 15:19 |
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| bauzas | mmm ? | 15:19 |
| gibi | I was there but honestly I don't remember :/ reading the etherpad now to get memories back | 15:19 |
| mriedem | "smorrison says everyone will read the release notes." | 15:19 |
| * bauzas scrolling back | 15:20 | |
| dansmith | mriedem: right, related to giving the neutron value precedence right? | 15:20 |
| mriedem | we likely indicated this would be a behavior change, mentioned in release notes | 15:20 |
| mriedem | yes | 15:20 |
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| dansmith | because if we weren't going to change anything (option 1) then it wouldn't matter | 15:20 |
| mriedem | and sam was a proxy for all openstack operators worldwide | 15:20 |
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| bauzas | stephenfin: sorry can't help, was in another room AFAIR | 15:21 |
| mriedem | so dhcp_domain takes precedence if set | 15:21 |
| mriedem | as noted inline, some people set that to '' to skip all that logic and just use the server hostname provided by the user | 15:22 |
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| mriedem | if dhcp_domain is None, then we use the network.dns_domain (if set), else default to 'novalocal' which is the default today | 15:22 |
| mriedem | so if, as an operator, i want the user-supplied name to be the hostname, i set dhcp_domain='' | 15:23 |
| mriedem | if i want novalocal, i set dhcp_domain=novalocal explicitly | 15:23 |
| mriedem | else i let it come from the network (if set) | 15:23 |
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| stephenfin | mriedem: I get that. I'm asking what the rationale for pulling it from neutron in the first place is. I haven't seen an RFE/bug open for this in the past so is it an issue? | 15:24 |
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| stephenfin | As opposed to just undeprecating the existing option | 15:24 |
| dansmith | pulling it from neutron would be pulling it from the source of network truth | 15:25 |
| dansmith | which, AFAIK, was the plan we never implemented | 15:25 |
| dansmith | even still, | 15:25 |
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| dansmith | just undeprecating what we have could be step 1 if you just don't want to do the step 2 of honoring the neutron thing | 15:26 |
| gibi | I've read the etherpad but no memories came back from this part of the session. sorry. But ^^ seems reasonable to me | 15:27 |
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| dansmith | doesn't L42 say "Agree: option 2" ?\ | 15:27 |
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| dansmith | oh, heh | 15:28 |
| dansmith | cheater | 15:28 |
| mriedem | heh yeah | 15:28 |
| dansmith | haha | 15:28 |
| mriedem | however, | 15:28 |
| mriedem | i also wrote up daily session reports internally and that's the option i said we were going with | 15:28 |
| mriedem | "- agreed on the direction to resolve bug | 15:29 |
| mriedem | https://bugs.launchpad.net/nova/+bug/1698010 for | 15:29 |
| mriedem | the nova dhcp_domain option; we'll undeprecate it, | 15:29 |
| mriedem | give priority to the option if set, otherwise use | 15:29 |
| mriedem | the neutron network dns_domain attribute if set, | 15:29 |
| openstack | Launchpad bug 1698010 in OpenStack Compute (nova) "neutron-based instances should not use the nova-network 'dhcp_domain' option" [High,In progress] - Assigned to Stephen Finucane (stephenfinucane) | 15:29 |
| mriedem | otherwise default to 'novalocal' as before" | 15:29 |
| mriedem | from my trip report ^ | 15:29 |
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| mriedem | so i failed to make it super clear in the etherpad, i'm sorry | 15:29 |
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| openstackgerrit | Stephen Finucane proposed openstack/nova master: conf: Undeprecate the 'dhcp_domain' option https://review.openstack.org/480616 | 15:46 |
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| openstackgerrit | Vladyslav Drok proposed openstack/nova master: ironic: Report resources as reserved when needed https://review.openstack.org/517921 | 15:52 |
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| mriedem | and we have a new rebuild test in tempest which means new cells v1 random rebuild failures | 15:57 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova master: Skip ServerShowV263Test.test_show_update_rebuild_list_server for cellsv1 https://review.openstack.org/576194 | 16:01 |
| mriedem | dansmith: want to just fast approve this? ^ i've seen 2 failures from that today | 16:01 |
| dansmith | k | 16:01 |
| mriedem | i've also got a revert here for a change that breaks lvm in the libvirt driver https://review.openstack.org/#/c/576136/ | 16:02 |
| mriedem | clearly never tested properly in the original change | 16:03 |
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| dansmith | +2, gibi efried stephenfin ^ | 16:05 |
| dansmith | bauzas: ^ | 16:05 |
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| dansmith | that's a pretty bad one | 16:05 |
| dansmith | mriedem: was that just failing some lvm job that doesn't vote? | 16:05 |
| bauzas | dansmith: I thought reverts were fast-approved ? | 16:06 |
| mriedem | dansmith: our nova-lvm job runs in the experimental queue but i don't see that was actually run on the original change, but it wouldn't be voting if it iwas, | 16:06 |
| bauzas | anyway, +Wd | 16:06 |
| mriedem | but that's not how i found the failure | 16:06 |
| dansmith | bauzas: sure, but there are people around, so meh | 16:06 |
| mriedem | i found it because the trusted certs barbican patch was failing b/c it uses lvm apparently https://review.openstack.org/#/c/515210/ | 16:06 |
| mriedem | with the depends-on the revert it passes again | 16:07 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova master: Skip ServerShowV263Test.test_show_update_rebuild_list_server for cellsv1 https://review.openstack.org/576194 | 16:12 |
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| openstackgerrit | Vladyslav Drok proposed openstack/nova master: ironic: Report resources as reserved when needed https://review.openstack.org/517921 | 16:31 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova master: Fix regression when listing build_requests with marker and ip filter https://review.openstack.org/576161 | 16:33 |
| openstackgerrit | Elod Illes proposed openstack/nova master: Reject interface attach with QoS aware port https://review.openstack.org/570078 | 16:33 |
| stephenfin | mriedem: What did you mean here? https://review.openstack.org/#/c/567876/ (second last comment) | 16:35 |
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| mriedem | ? | 16:35 |
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| mriedem | http://logs.openstack.org/66/575766/1/check/legacy-grenade-dsvm-neutron-multinode-live-migration/2bd7d1f/logs/screen-n-cpu.txt.gz#_Jun_15_17_06_09_888053 | 16:36 |
| mriedem | ? | 16:36 |
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| stephenfin | mriedem: Do you mean it's working and you're happy or that it shouldn't be working because the older compute node should be rejected? | 16:36 |
| mriedem | just shows that when we're doing a live migration over n-1 and n level computes, if one is file-backed memory and the other isn't, we fail as the code is doing | 16:36 |
| mriedem | i'm happy | 16:36 |
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| stephenfin | OK, that link was what I need. I'll re-review that in the morning so | 16:36 |
| stephenfin | *needed | 16:37 |
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| mriedem | gibi: stephenfin: thanks for hitting https://review.openstack.org/#/c/561284/ | 16:38 |
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| openstackgerrit | Eric Fried proposed openstack/nova master: Handle agg generation conflict in report client https://review.openstack.org/556669 | 17:03 |
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| openstackgerrit | Eric Fried proposed openstack/nova master: Nix unused raise_if_custom_resource_class_pre_v1_1 https://review.openstack.org/575847 | 17:07 |
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| openstackgerrit | Eric Fried proposed openstack/nova-specs master: Spec: Handling Reshaped Provider Trees https://review.openstack.org/572583 | 17:33 |
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| zcorneli | dansmith, mriedem: For the file backed memory work, when going to implement the discard option (libvirt 4.4.0+), for migration XML generation we need to pass a second value back to the source from the destination. Is there a preference toward making the existing field into an Enum (or similar) vs creating a new field for discard? | 17:43 |
| mriedem | the dst_wants_file_backed_memory field? | 17:45 |
| zcorneli | yes | 17:46 |
| mriedem | discard is a different thing and would be a different version of the migrate data object | 17:46 |
| mriedem | so probably easiest to model that as a different field | 17:46 |
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| zcorneli | The only reason I would have against that would be that dst_wants_file_backed_memory=False + discard=True doesn't make sense. | 17:47 |
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| zcorneli | And I'm not sure if there's a way (or even really a will) to validate that in the object. | 17:48 |
| openstackgerrit | Artom Lifshitz proposed openstack/nova master: DNM: Use claim context during live migration https://review.openstack.org/576222 | 17:48 |
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| mriedem | would either of the is_shared_* fields make sense with dst_wants_file_backed_memory? | 17:49 |
| mriedem | nvm, wrong type of thing | 17:49 |
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| mriedem | anyway, i don't think it's that big a deal, you'd just have a comment by the discard field saying it only makes sense when dst_wants_file_backed_memory=True | 17:49 |
| zcorneli | Yep, works for me. Thanks for the input | 17:50 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova stable/queens: Add policy rule to block image-backed servers with 0 root disk flavor https://review.openstack.org/563692 | 17:52 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova stable/pike: Add policy rule to block image-backed servers with 0 root disk flavor https://review.openstack.org/563700 | 18:01 |
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| crazik | huh, finally. all services in pike. | 18:16 |
| crazik | i was a looong and hard journey | 18:16 |
| dansmith | mriedem: hmm, did you know a migration record can go into "pre-migrating" state because of the resource tracker? | 18:16 |
| crazik | dansmith: or other issue | 18:17 |
| crazik | like DB schema mismatch | 18:17 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova stable/ocata: Add policy rule to block image-backed servers with 0 root disk flavor https://review.openstack.org/563719 | 18:17 |
| dansmith | huh? | 18:17 |
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| dansmith | mriedem: I mean "will go" by the way | 18:17 |
| mriedem | dansmith: i'm fairly sure that's on page 374 of the nova core handbook | 18:17 |
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| mriedem | why, what is it breaking? | 18:18 |
| dansmith | mriedem: since you updated the comment above the list of filters, I challenge the fact that you knew that :P | 18:18 |
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| dansmith | mriedem: well, a migration can be in pre-migrating state, and thus neither of accepted or done, | 18:19 |
| mriedem | what filters? | 18:19 |
| dansmith | so the source compute may not find it if it comes up at the exact time | 18:19 |
| dansmith | mriedem: https://review.openstack.org/#/c/500144/ | 18:19 |
| mriedem | i assume you're referring to something else, like evac on startpu | 18:19 |
| dansmith | yes, that's what I'm talking about | 18:20 |
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| mriedem | ok yeah i guess rebuild_claim will put the migration into pre-migrating status for evac | 18:21 |
| dansmith | so it will go accepted->pre-migrating -> done -> completed | 18:21 |
| dansmith | yeah | 18:21 |
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| mriedem | sorry i didn't have the full evac migration task state in my head when writing that comment... | 18:21 |
| dansmith | well, I never knew it would do that | 18:21 |
| dansmith | although I wonder if it would when I wrote that, because we did rebuild_claim recently, IIRC | 18:21 |
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| mriedem | as in 2015? https://review.openstack.org/#/c/200485/ | 18:22 |
| dansmith | oh | 18:22 |
| dansmith | I thought we added that while cleaning things up for placement, but maybe not | 18:22 |
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| mriedem | no, it was part of this https://review.openstack.org/#/q/topic:bug/1417667+(status:open+OR+status:merged) | 18:23 |
| dansmith | yep, okay | 18:23 |
| mriedem | i semi remember looking at that recently because of https://review.openstack.org/#/c/560467/ | 18:24 |
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| mriedem | and because we log a warning during every live migratoin | 18:24 |
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| mriedem | artom_: artom__: you might care about ^ | 18:25 |
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| artom | Sorry, moving around between rooms in the office :( | 18:28 |
| artom | mriedem, thanks for the tip, I *would* care about that, but what's the context? | 18:28 |
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| mriedem | artom: RT claims code with live migration | 18:29 |
| mriedem | which is now your thing | 18:29 |
| artom | Sorta (see http://lists.openstack.org/pipermail/openstack-dev/2018-June/131605.html) | 18:30 |
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| * artom still has no idea if he's supposed to read something or answer a question :/ | 18:32 | |
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| crazik | :D | 18:32 |
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| openstackgerrit | Zack Cornelius proposed openstack/nova master: Implement file backed memory for instances in libvirt https://review.openstack.org/567876 | 18:39 |
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| openstackgerrit | Giridhar Jayavelu proposed openstack/nova master: Avoid redundant compute node update https://review.openstack.org/576235 | 19:04 |
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| openstackgerrit | Eric Fried proposed openstack/nova-specs master: Spec: Handling Reshaped Provider Trees https://review.openstack.org/572583 | 19:11 |
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| openstackgerrit | Eric Fried proposed openstack/nova master: WIP: Compute: Handle reshaped provider trees https://review.openstack.org/576236 | 19:15 |
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| openstackgerrit | Eric Fried proposed openstack/nova master: Nix unused raise_if_custom_resource_class_pre_v1_1 https://review.openstack.org/575847 | 19:52 |
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| openstackgerrit | Merged openstack/nova master: Skip ServerShowV263Test.test_show_update_rebuild_list_server for cellsv1 https://review.openstack.org/576194 | 20:18 |
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| anupn | Hi Folks, I am trying to schedule an instance over my baremetal node which is in "Available" state, but "host not mapped to any cell" error is coming upon scheduling an instance. Could you please point me how to map the host to the nova_cell1? | 20:24 |
| anupn | I tried running "nova-manage db sync", and "nova-manage cell_v2 simple_cell_setup" but no luch | 20:25 |
| anupn | *luck | 20:25 |
| mriedem | anupn: see the discover_hosts command https://docs.openstack.org/nova/latest/cli/nova-manage.html#nova-cells-v2 | 20:25 |
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| anupn | mriedem: Yes I did, and I don't see any hosts there | 20:27 |
| mriedem | did you run it with the --by-service option? | 20:27 |
| openstackgerrit | Dan Smith proposed openstack/nova master: Fix MigrateData object tests for compat routines https://review.openstack.org/576256 | 20:28 |
| dansmith | zcorneli: ^ | 20:28 |
| zcorneli | dansmith: Was just looking at jaypipes suggestion for that. | 20:29 |
| dansmith | zcorneli: basically just what I did | 20:29 |
| anupn | mriedem: Nope, i ran without it and I got a user warning "UserWarning: The psycopg2 wheel package will be renamed from release 2.8......" | 20:29 |
| dansmith | except better | 20:29 |
| * anupn tries with --by-service | 20:29 | |
| mriedem | anupn: well, try running with it, since it's for ironic nodes | 20:30 |
| zcorneli | Yep. I like the lambda, makes it more clear, I think. | 20:30 |
| anupn | mriedem: still the same | 20:30 |
| dansmith | zcorneli: I spent my time writing code, else I'd have committed my comment before jaypipes :P | 20:30 |
| mriedem | anupn: did you run it with --verbose to see if it actually mapped anything? | 20:30 |
| anupn | mriedem: Should i run "nova-manage cell_v2 map_cell1"? | 20:30 |
| mriedem | no | 20:30 |
| zcorneli | dansmith: Do we want to follow his other suggestion as well, and do the associated AssertIn's? | 20:31 |
| mriedem | unless the host is actually in some other db | 20:31 |
| dansmith | zcorneli: I did | 20:31 |
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| dansmith | zcorneli: well, what I meant was, I added a positive assertion in each case | 20:31 |
| anupn | mriedem: Okay so with --verbose, I see it finds two cells - cell0 and cell1 | 20:31 |
| dansmith | zcorneli: no need to assert the presence of all the things for the latest version, IMHO | 20:32 |
| anupn | it is skips cell0 as no hosts in that | 20:32 |
| dansmith | zcorneli: just one to make sure you're not looking at the wrong level of the structure | 20:32 |
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| anupn | and from cell1 I see - "Getting computes from cell 'cell1': 182677b0-4e7d-416b-a47b-57c2f33e090e | 20:32 |
| anupn | Found 0 unmapped computes in cell: 182677b0-4e7d-416b-a47b-57c2f33e090e | 20:32 |
| anupn | " | 20:32 |
| zcorneli | Seems like the positive assertion for every field is "clear" - It should be covered elsewhere in the tests as well, but ensures "It was there before making compatible, and not there after" | 20:33 |
| mriedem | anupn: what does this give you? nova-manage cell_v2 list_hosts 182677b0-4e7d-416b-a47b-57c2f33e090e | 20:33 |
| mriedem | does the compute host that's hosting that baremetal node show up in the list? | 20:33 |
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| zcorneli | dansmith: The single definitely helps fix the previous issue we had through with the false positives | 20:33 |
| dansmith | right | 20:33 |
| dansmith | zcorneli: you're welcome to positive-assert your property if you want, but I don't think it's that necessary | 20:34 |
| anupn | mriedem: yes | 20:35 |
| mriedem | anupn: ok so then the host is mapped to cell1 | 20:35 |
| anupn | I see the hostname of my node | 20:35 |
| mriedem | anupn: try scheduling now | 20:35 |
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| zcorneli | dansmith: I'm OK with the statement that the positive side is covered elsewhere. | 20:35 |
| openstackgerrit | Artom Lifshitz proposed openstack/nova master: DNM: Use claim context during live migration https://review.openstack.org/576222 | 20:36 |
| anupn | mriedem: Okay, wait but "openstack hypervisor list" shouldn't it show my ironic type hypervisor? | 20:36 |
| mriedem | anupn: yes | 20:36 |
| anupn | mriedem: oh yeah, it shows now | 20:36 |
| mriedem | whew | 20:37 |
| anupn | mriedem: so I think scheduling should work now | 20:37 |
| mriedem | i hope so | 20:37 |
| anupn | mriedem: what commands, made this magic? | 20:37 |
| mriedem | discover_hosts --by-service | 20:37 |
| mriedem | presumably | 20:37 |
| anupn | mriedem: Ah, that's interesting, worth making a note | 20:37 |
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| anupn | mriedem: Instance got scheduled like charm :) | 20:43 |
| anupn | thanks | 20:43 |
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| mriedem | anupn: cool, yw | 20:44 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova master: Fix regression when listing build_requests with marker and ip filter https://review.openstack.org/576161 | 20:51 |
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| openstackgerrit | Eric Fried proposed openstack/nova master: Tighten up ReportClient use of generation https://review.openstack.org/556669 | 20:56 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova master: Clarify placement DB schema migration https://review.openstack.org/576265 | 20:57 |
| SpamapS | So.. question about placement service logs.. | 20:59 |
| SpamapS | They're basically destroying our ELK stack | 21:00 |
| SpamapS | is there any value in logging all of that at INFO? | 21:00 |
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| openstackgerrit | Eric Fried proposed openstack/nova-specs master: Spec: Handling Reshaped Provider Trees https://review.openstack.org/572583 | 21:10 |
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| openstackgerrit | Eric Fried proposed openstack/nova-specs master: Spec: Handling Reshaped Provider Trees https://review.openstack.org/572583 | 21:13 |
| efried | SpamapS: You can bust the log level down if you like. | 21:13 |
| efried | SpamapS: What kind of logging are you seeing? I haven't looked at one lately. | 21:14 |
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| openstackgerrit | Chris Dent proposed openstack/nova master: Isolate placement database config https://review.openstack.org/541435 | 21:16 |
| openstackgerrit | Chris Dent proposed openstack/nova master: Ensure that os-traits sync is attempted only at start of process https://review.openstack.org/553857 | 21:16 |
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| openstackgerrit | Dan Smith proposed openstack/nova stable/queens: Add amd-ssbd and amd-no-ssb CPU flags https://review.openstack.org/576270 | 21:19 |
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| jroll | efried: random tempest-full run on INFO: http://logs.openstack.org/66/362766/109/gate/tempest-full/52a4e60/controller/logs/screen-placement-api.txt.gz?level=INFO | 21:25 |
| jroll | that is certainly a lot of logs | 21:25 |
| jroll | looks like it's logging each request at INFO | 21:25 |
| efried | jroll: Is that not what it should be doing? | 21:25 |
| efried | It's not logging payloads. | 21:25 |
| efried | That would be DEBUG-worthy. | 21:26 |
| jroll | I don't know, I don't make those decisions :P | 21:26 |
| zcorneli | dansmith: For that test fixup, looks like there's a number of similar issues in the objects/ dir, worth fixing them all? | 21:26 |
| jroll | efried: in my experience, apache/nginx/whatever does the request logging, and the service only logs whatever else is needed | 21:26 |
| jroll | but clearly someone decided at some point this should happen in placement at info ¯\_(ăƒ„)_/¯ | 21:26 |
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| efried | cdent, jaypipes - what are your thoughts on making placement logging less noisy? | 21:27 |
| efried | jroll: I mean, you can always bust the log level down, right? | 21:27 |
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| jroll | efried: I assume there are some important things logged at INFO | 21:28 |
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| efried | jroll: You mean in general, or here? | 21:28 |
| jroll | both? | 21:28 |
| efried | cause here all I see is just the calls. | 21:28 |
| jroll | well that's the point, signal-to-noise ratio is low | 21:29 |
| jroll | to be clear, I don't (currently) have a problem, just got curious | 21:30 |
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| efried | and what I'm saying is, if these lines about which operations are called and how long they took and how many bytes they generated are all considered "noise", you can switch to WARNING and you'll get not those, but you (seemingly) won't lose out on anything else. | 21:30 |
| efried | Ima go look see if there's anything else logged at INFO... | 21:30 |
| jroll | I just checked, heh | 21:30 |
| jroll | curl http://logs.openstack.org/66/362766/109/gate/tempest-full/52a4e60/controller/logs/screen-placement-api.txt.gz\?level\=INFO | grep -v nova.api.openstack.placement.requestlog | grep -v 'switches on core' | grep INFO | 21:31 |
| jroll | gives a single line | 21:31 |
| efried | Yeah, traits db sync and online migration are the only other two things in the code. | 21:31 |
| jroll | so you're right, there isn't really anything other than request logging at INFO | 21:31 |
| efried | (online _data_ migration, that is - nothing to do with migrating instances) | 21:32 |
| jroll | most openstack services log very useful things at INFO, so operators tend to run at INFO | 21:32 |
| SpamapS | "Info: Usually indicates successful service start/stop, versions and such non-error related data. This should include largely positive units of work that are accomplished (such as starting a compute, creating a user, deleting a volume, etc.)" | 21:32 |
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| efried | useful is in the eye of the beholder, I suppose. | 21:33 |
| SpamapS | https://specs.openstack.org/openstack/openstack-specs/specs/log-guidelines.html | 21:33 |
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| SpamapS | IMO those should be TRACE | 21:33 |
| efried | SpamapS: I don't really see this as violating that precept, personally. | 21:33 |
| SpamapS | They aren't really useful for realtime analysis. | 21:33 |
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| efried | No, trace would include all the payloads, generated SQL statements and result sets, etc. | 21:33 |
| SpamapS | They're good for like, tracing through to find out when an aggregate changed to what or was requested as what. | 21:33 |
| SpamapS | but every single compute node is constantly hitting placement | 21:34 |
| efried | Put in the context of the other logs, the info level is useful for letting you figure out which calls happened when and what their result was. | 21:34 |
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| efried | Keeping in mind that placement doesn't necessarily see a 4xx as a "failure" or whatever, so something that's an ERROR in n-cpu or n-cond or whatever might just be a vanilla request/response to placement. | 21:35 |
| efried | So we can't condition on status code. | 21:35 |
| efried | Turn it around: if we were to take these lines out of INFO level, the log would be basically empty. | 21:35 |
| SpamapS | Ya, at this point we're just going to dump them from our ELK cluster. | 21:36 |
| SpamapS | They represent ~70% of all logs flowing in. | 21:36 |
| efried | SpamapS: I'm going to say again, if you don't like these INFO messages, change the log level (for placement only) to WARNING. | 21:36 |
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| SpamapS | Ya, just wondering why people would think these would be useful enough for INFO. | 21:37 |
| efried | SpamapS: Because I reckon you do want to know if something goes wrong. So you don't just want to blow away the logs. | 21:37 |
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| SpamapS | Yeah thats what I meant by dump them.. we'll not send the INFO+placement through to elastic. | 21:37 |
| efried | SpamapS: For ffdc, being able to correlate an ERROR in the nova logs to the corresponding placement calls - that's useful. And INFO-worthy IMO. | 21:38 |
| efried | again because placement has no way to distinguish what's ERROR-worthy from the client's perspective. | 21:38 |
| efried | Also finding it a little hard to believe that the placement log is noisier than the combined compute logs. Keep in mind that there's only one placement service. | 21:39 |
| SpamapS | the computes don't spray as much on INFO | 21:39 |
| SpamapS | unless they're super busy with churn | 21:40 |
| SpamapS | meanwhile they're constantly hammering on placement | 21:40 |
| efried | yup | 21:40 |
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| jaypipes | SpamapS, jroll: do you have specific advice on what to down-level from INFO? | 21:52 |
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| Sundar | efried: Please ping me when you can | 22:07 |
| efried | Sundar: I'm here. | 22:07 |
| efried | Sundar: I skimmed your responses, but didn't dig deep yet. | 22:07 |
| efried | oh, right, the main issue is "cyborg discovers automatically etc." | 22:08 |
| efried | This is missing the point, I think. | 22:08 |
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| efried | When we do `openstack accelerator create` we're not getting a specific device. We're creating an ethereal meta-thingy that basically just has an ID for now. | 22:08 |
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| efried | It's not until after placement has done its thang that you can actually (with the help of the plugin) associate that with an actual (possibly-virtual) device. | 22:09 |
| Sundar | efried: Sure, I am saying that Cyborg discovers PCI functions and such, apart from devices per se. So, all the information needed for an attach are already there. | 22:10 |
| efried | Except it's not. | 22:10 |
| Sundar | Could you clarify? What is missing? | 22:10 |
| efried | The main purpose of `openstack accelerator create <config details>` is to give <config details> a handle so we don't have to sling a random dict around all the services. | 22:10 |
| efried | It's the same principle as the port in neutron. You do a `port create` and get a UUID, but it's not associated with anything *real* yet. | 22:11 |
| efried | It's only much later, once you've landed on a real host, that you actually get a port on a NIC with an IP or whatever. | 22:11 |
| efried | Same thing here. | 22:11 |
| Sundar | That can be done from Nova compute -> os-acc, as opposed t doing at the controller between n-sched/placement and Cyborg | 22:11 |
| Sundar | The analogy with Neutron is ok, but do we need to copy it exactly? | 22:12 |
| Sundar | We need to see what makes sense in this context, right? | 22:12 |
| efried | heh, yeah, we should copy it insofar as it makes sense, and no further. | 22:12 |
| Sundar | What goes wrong if we create an attach object when n-cpu calls os-acc? | 22:13 |
| efried | well, what's an "attach object"? | 22:13 |
| efried | But let me answer that anyway | 22:13 |
| jaypipes | efried: it's pretty much the same as a "volume attachment". it's an ephemeral connection_info thing. | 22:14 |
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| efried | The problem is that n-cond needed to know things about that accelerator long before we ever get to n-cpu. | 22:14 |
| efried | jaypipes: It was a semi-rhetorical question. | 22:14 |
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| jaypipes | efried: yes, I know :) | 22:14 |
| Sundar | It is an object that encapsulates what it takes to attach an accelerator to a VM | 22:14 |
| jaypipes | efried: as mine was a semi-rhetorical answer. | 22:14 |
| jaypipes | efried: it's a non-consumable thing. it's just configuration info. | 22:15 |
| jaypipes | efried: i.e. it isn't a placement concern. | 22:15 |
| efried | Sundar: Example: I want my instance to have a VGPU with 1 display heads and resolution of 1024x768 (ambitious, I know). | 22:15 |
| efried | Sundar: I need a way to have that information passed from the very start of my `server create` request. | 22:15 |
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| efried | So when I do `openstack server create --flavor foo --image bar --accelerator <what goes here?>` | 22:16 |
| efried | And the answer could be <random dict of values> | 22:16 |
| efried | but that sucks. | 22:16 |
| jaypipes | efried: like the neutron port profile.. | 22:16 |
| efried | jaypipes: precisely | 22:16 |
| jaypipes | efried: which is used to created the instance pci device request | 22:16 |
| Sundar | I am not an expert on GPUs by a long shot :) but can't you apply traits on your GPU indicating what resolutions it can support, and use those traits in placement to pick a device? | 22:17 |
| efried | So instead we first do `openstack accelerator create --type vgpu --specs display_heads=1,resolution=1024x768`, or similar. | 22:17 |
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| Sundar | "--specs display_heads=1,resolution=1024x768`" --> why can't this be a trait? | 22:17 |
| efried | And we get back an "accelerator UUID" Or maybe it's called an "attachment UUID". Whatever term, not important right now. Point is, it's just a handle for that config data. | 22:17 |
| efried | Sundar: It *is*. That's the point. | 22:17 |
| jaypipes | efried: it's >1 trait, to be clear. | 22:17 |
| efried | Sundar: We're not *creating* anything in placement at this point in the game. That was already done by cyborg when you did your discovery and whatnot. | 22:18 |
| efried | So now we got back some $acc_uuid and we can say `openstack server create --flavor foo --image bar --accelerator $acc_uuid` | 22:18 |
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| Sundar | efried, jaypipes: Since it is a trait, placement can choose a GPU device in a node on on that basis, and have n-cpu call os-acc to 'configure' the gpu as needed? | 22:19 |
| efried | yes, Sundar, that's exactly what's going to happen. I'm talking through how placement is going to get that information. | 22:19 |
| mriedem | SpamapS: jroll: efried: n-api also logs requests at INFO http://logs.openstack.org/66/362766/109/gate/tempest-full/52a4e60/controller/logs/screen-n-api.txt.gz#_Jun_15_15_26_18_719528 | 22:19 |
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| SpamapS | That makes sense. It just doesn't get as many requests. :) | 22:20 |
| efried | Sundar: ...So now when the conductor needs to draw up a placement query for allocation candidates, it asks cyborg (via os-acc?) "hey, give me the details on this accelerator: $acc_uuid". Cyborg returns the AccGPU object, populated with an AccGPUProfile, which in turn is populated with information about display_heads=1 and resolution=1024x768 | 22:20 |
| Sundar | efried: May be I am being dense. The placement knows enough to choose a RP (GPU in a node). What else does it need? The rest can be left to entities in the compute node, right? | 22:21 |
| efried | conductor parlays that into querystring content for GET /allocation_candidates and sends it down to placement. | 22:21 |
| efried | Sundar: Nope, placement knows what it's told. I need to tell it about more than just "I need one VGPU". Otherwise I have to do all my filtering later, which defeats the purpose of having used placement. | 22:22 |
| Sundar | "conductor needs to draw up a placement query for allocation candidates, it asks cyborg (via os-acc?)" This is not needed for selecting a node | 22:22 |
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| efried | yes it is. | 22:22 |
| Sundar | You can do GET /a-c without talking to Cyboirg | 22:22 |
| efried | unless, as I say, you want to do all the filtering later, which defeats the purpose. | 22:22 |
| efried | Sundar: n-cond had to get the config details of the accelerator from *somewhere*. | 22:23 |
| efried | Sundar: Where did it get that from? | 22:23 |
| Sundar | E.g. resources:ACCELERATOR_GPU=1; traits:RESOLUTION-1024-768=required (or whatever) | 22:23 |
| efried | right, where does traits:RESOLUTION_1024X768=required come from? | 22:24 |
| Sundar | CYborg (or whatever) published it | 22:24 |
| efried | Sundar: Oh, this may be the source of confusion: are you thinking that comes from the flavor? | 22:24 |
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| Sundar | Yes | 22:24 |
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| efried | jaypipes, dansmith: Remind me why we're not putting accelerator stuff in flavors | 22:25 |
| efried | (which I suppose may be the same reason we don't put neutron port stuff in flavors??) | 22:25 |
| jaypipes | efried: we are putting that stuff in flavors and image metadata (at least, we are for *v*GPUs...) | 22:25 |
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| Sundar | jaypipes: +1 Same for FPGAs | 22:26 |
| efried | well then | 22:26 |
| jaypipes | efried: that, of course, is what is being *requested* by the user. something (Cyborg I was assuming) needs to decorate resource providers representing the physical accelerators with those traits. | 22:26 |
| Sundar | Totally agreed | 22:26 |
| efried | yeah, got that | 22:26 |
| jaypipes | k | 22:27 |
| Sundar | Great. I need to drop now for a 3:30 PM call | 22:27 |
| Sundar | I am open to coming back tomorrow (or even later today) to close this | 22:27 |
| efried | We need to get a consensus with dansmith. | 22:27 |
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| Sundar | OK, what's the best time for that? | 22:27 |
| efried | Sundar: You don't need to be around for that, necessarily. | 22:27 |
| jroll | jaypipes: I don't have specific advice, I was just curious what clint was referring to and then tried to help clarify :) | 22:27 |
| Sundar | OK. Thanks, efried and jaypipes. Take care! | 22:28 |
| efried | Sundar: I'll try to catch up with dansmith and see if it was just a misunderstanding or what. | 22:28 |
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| efried | jaypipes: FYI, this is the flow that dansmith and I talked through the other day: http://logs.openstack.org/45/575545/1/check/build-openstack-sphinx-docs/77f4d6a/html/specs/rocky/approved/nova-cyborg-flow.html | 22:29 |
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| efried | jaypipes: It closely follows the neutron port model with os-vif. | 22:30 |
| jaypipes | jroll: k, no prob. was just curious if we should make a specific change. | 22:30 |
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| jaypipes | efried: I don't see *end users* ever doing `openstack acc create --type GPU <specs>`. Maybe some admin... maybe. though that said, I don't really know what <specs> would be. | 22:32 |
| jaypipes | efried: end users (at least that I'm aware of) don't have the ability to create "accelerators". | 22:33 |
| efried | jaypipes: same thing as whatever it would be in the flavor, more or less. | 22:33 |
| jaypipes | efried: I guess I don't see why we need a separate service for that, but ok. | 22:33 |
| efried | Okay, if this is all driven by the flavor, so be it. | 22:33 |
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| efried | jaypipes: If we don't, we don't. I've never been a huge fan of the `port create` pre-step. | 22:33 |
| efried | I guess the difference is that every port needs to have specific *unique* config info (IP addr). | 22:34 |
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| efried | ...which doesn't make sense to be in a flavor. | 22:34 |
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| jaypipes | efried: we're talking about different things entirely. | 22:36 |
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| jaypipes | efried: I'll just leave this conversation like this... I don't see why Cyborg isn't the generic device manager... | 22:37 |
| efried | I fully hope it will be | 22:37 |
| jaypipes | in other words, I don't see the point of having `openstack acc $ANYTHING`. | 22:38 |
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| efried | I'm on board with that, if dansmith is. | 22:38 |
| jaypipes | there should be a YAML inventory file describing devices (that can't for some reason be auto-discovered on a node) and that's that... | 22:38 |
| efried | The way the conversation with Sundar started was that his specs talk about os-acc parallelling os-vif, but then doesn't actually do that. | 22:39 |
| jaypipes | note that I didn't say that os-acc shouldn't exist. | 22:39 |
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| efried | I wanted os-acc to have Acc* objects (corresponding to VIF*) and Acc*Profile (=~ VIF*PortProfile); and to define plug/unplug methods which call to plugins registered/loaded stevedore-wise. | 22:40 |
| efried | they didn't have any of that in their specs. | 22:40 |
| jaypipes | efried: but I don't see the point of a Cyborg REST API. sorry if that offends anyone. I just really only see the point of a utility library (os-acc) that can be called to configure/init a particular device slot. | 22:41 |
| efried | ...where os-acc has a plugin mechanism that in turn lets it call out to platform-specific code to do plugging etc. | 22:42 |
| jaypipes | sure, that's fine with me. | 22:42 |
| efried | I imagine the REST API may be useful for things like programming FPGAs or twiddling details in their database. | 22:42 |
| efried | but Nova isn't going to touch it, as you say, because all Nova needs to interact with is os-acc. | 22:43 |
| efried | now it's possible that os-acc will talk to the cyborg API. | 22:43 |
| efried | isn't it? | 22:43 |
| jaypipes | efried: nobody is going to be "prgramming FPGAs" via a REST API. :) | 22:43 |
| jaypipes | efried: sure, I guess I'm fine with this sort of thing being in the Cyborg API: https://github.com/openstack/cyborg/blob/master/cyborg/api/controllers/v1/deployables.py | 22:44 |
| jaypipes | efried: what I *don't* think should be in the Cyborg API is this: https://github.com/openstack/cyborg/blob/master/cyborg/api/controllers/v1/accelerators.py | 22:44 |
| jaypipes | efried: because all that is is inventory and resource providers information. | 22:44 |
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| efried | jaypipes: Just meaning in the same sense that we have a REST API to create a server by identifying the UUID of an image to load up; cyborg would have an API to identify the UUID of a bitstream image to program onto the thing. | 22:45 |
| jaypipes | efried: and that belongs in placement, IMHO. | 22:45 |
| efried | is that off base? | 22:45 |
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| jaypipes | efried: no. https://github.com/openstack/cyborg/blob/master/cyborg/api/controllers/v1/accelerators.py <-- that is the equivalent of compute_nodes in Nova, not instances table. | 22:45 |
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| efried | I was still talking about "programming FPGAs via a REST API". | 22:46 |
| jaypipes | oh. | 22:46 |
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| jaypipes | efried: sure, that's fine. that's the /deployables REST API endpoint in Cyborg. | 22:47 |
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| efried | jaypipes: The other thing dansmith talked about was this need for a "bind" step. This is after allocate but before plug, and (I guess) lets cyborg know the actual RP we're grabbing. I think the purpose is so that cyborg can do their on-the-fly inventory/trait adjustment or perhaps final checking stuff? Not sure why this couldn't happen at the front of plug() before the plugin is invoked. | 22:52 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Wait for network-vif-plugged before starting live migration https://review.openstack.org/558001 | 22:53 |
| dansmith | efried: the point of bind would be to get the inventory adjustment step and start programming the thing as early as we know where it's going to be | 22:53 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Add check if neutron "binding-extended" extension is available https://review.openstack.org/523548 | 22:53 |
| mriedem | watch out | 22:53 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Add "bind_ports_to_host" neutron API method https://review.openstack.org/523604 | 22:53 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Add "delete_port_binding" network API method https://review.openstack.org/552170 | 22:53 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Add "activate_port_binding" neutron API method https://review.openstack.org/555947 | 22:53 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Delete port bindings in setup_networks_on_host if teardown=True https://review.openstack.org/556333 | 22:53 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Implement migrate_instance_start method for neutron https://review.openstack.org/556334 | 22:53 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Add VIFMigrateData object for live migration https://review.openstack.org/515423 | 22:53 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Add VIFMigrateData.get_dest_vif https://review.openstack.org/566931 | 22:53 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: libvirt: factor out pre_live_migration plug_vifs call https://review.openstack.org/566932 | 22:53 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: libvirt: use dest host port bindings during pre_live_migration https://review.openstack.org/566933 | 22:53 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: libvirt: use dest host vif migrate details for live migration https://review.openstack.org/551370 | 22:53 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Annotate flows and handle PortBindingDeletionFailed in ComputeManager https://review.openstack.org/551371 | 22:53 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Port binding based on events during live migration https://review.openstack.org/434870 | 22:53 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: conductor: use port binding extended API in during live migrate https://review.openstack.org/522537 | 22:53 |
| mriedem | gibi: thanks for the reviews ^ | 22:53 |
| efried | dansmith: I don't think we have the actual "VF" at that point, though. | 22:54 |
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| efried | dansmith: Any case, is there a reason that couldn't be done at the front of plug() before the plugin's plug() is invoked? | 22:54 |
| dansmith | efried: we have the host, and cyborg could decide which "VF" it's going to give away | 22:54 |
| efried | cyborg doesn't decide that - the plugin does. | 22:54 |
| dansmith | efried: no, but it just serializes things that are parallelizeable, and makes us wait later to actually let cyborg adjust its inventory if it needs to | 22:55 |
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| dansmith | which reduces the window where we might've promised two things that can't actually co-exist | 22:55 |
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| efried | dansmith: And, since you're here now, do you agree that there's no `openstack accelerator create` thing to get an attachment handle - because the accelerator details are going to be in the flavor? | 22:56 |
| dansmith | I really wish I wasn't here, I'm supposed to be EOD | 22:56 |
| efried | Then just agree, and you can go free. | 22:56 |
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| dansmith | I dunno, I thought that if we don't allow them to create via cyborg (like creating a port via neutron) we're not going to be able to represent all the extra shit they want, and/or have to pass it all through our API | 22:57 |
| efried | If by "pass it all through" you mean it piggybacks on the flavor and the allocation record in the RequestSpec, then... yeah. | 22:58 |
| dansmith | no, | 22:58 |
| dansmith | I mean if we don't let them do anything other than set stuff in the flavor, | 22:58 |
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| dansmith | but that doesn't provide enough detail to say things like "I want SSLv3 offload accelerator vs. I want generic crypto accelerator" or something | 22:58 |
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| dansmith | if it's only ever going to be "I want N of $foo" then flavor is enough, | 22:59 |
| dansmith | but it's never that | 22:59 |
| efried | heh | 22:59 |
| dansmith | like neutron, it was just network, | 22:59 |
| dansmith | but then it became mac, and qos, and subnet, and ip and.... | 22:59 |
| efried | well, I guess we can do it one way and then add the other way later. That's never a problem. | 22:59 |
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| eandersson | Is there a way to do live migration one-by-one in Mitaka? e.g. using some external script or similar? | 23:03 |
| eandersson | with NUMA support | 23:04 |
| efried | eandersson: I imagine you could do some kind of | 23:04 |
| efried | for uuid in `nova list --params`; do nova migrate $uuid blah; done | 23:04 |
| efried | But I suspect that's not what you're asking... | 23:04 |
| eandersson | Ah yea, sorry left out an important detail about NUMA :p | 23:04 |
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| eandersson | Trying to figure out if there is a one-off script we could use to manually fix the NUMA calculation after live migrating VMs | 23:05 |
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| efried | eandersson: Ask stephenfin in about 12h | 23:06 |
| efried | sean-k-mooney[m] may also be able to help, but he's also UTC. | 23:07 |
| efried | cfriesen possibly? | 23:07 |
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| eandersson | Thanks efried | 23:08 |
| cfriesen | eandersson: one issue is that you may not actually succeed in live migrating | 23:08 |
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| cfriesen | eandersson: since in the general case you need to recalculate any dedicated CPUs, guest-to-host NUMA mapping, etc | 23:09 |
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| cfriesen | If you could arrange things such that you have an empty compute node that is identical to the one you want to migrate off of, that would simplify things since they could all keep the same resources. | 23:11 |
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| cfriesen | eandersson: ^ (I suppose it would also work if dest compute node was larger than the source.) | 23:12 |
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| eandersson | cfriesen, yea we were thinking of disabling a compute node, and then live migrating to it | 23:20 |
| eandersson | to avoid raceconditions etc | 23:20 |
| eandersson | most of these vms are probably gonna take up a single numa zone, with two zones per host | 23:23 |
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| openstackgerrit | Eric Fried proposed openstack/os-vif master: doc: Fix arg specs and object types in docs https://review.openstack.org/575151 | 23:30 |
| openstackgerrit | Matt Riedemann proposed openstack/nova stable/pike: Fixed auto-convergence option name in doc https://review.openstack.org/576282 | 23:32 |
| cfriesen | eandersson: if it's disabled then nova won't let you live migrate to it | 23:34 |
| cfriesen | eandersson: but as long as you can guarantee that the resources being used on the source host are available on the dest, then it should be basically okay. Once the resource audit has run on the dest (within a minute by default) then you should be basically sane. | 23:36 |
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| mriedem | for all you ceph nerds, this doesn't make a ton of sense https://bugs.launchpad.net/nova/+bug/1777123 | 23:46 |
| openstack | Launchpad bug 1777123 in OpenStack Compute (nova) "Nova 17.04 fails to create ephemeral storage with rbd driver " [Undecided,New] | 23:46 |
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