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| openstackgerrit | Spencer Yu proposed openstack/nova master: Correct statement in api-ref https://review.openstack.org/495724 | 03:34 |
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| openstackgerrit | Naichuan Sun proposed openstack/nova master: xenapi: Live migration failed in xapi pool https://review.openstack.org/489451 | 04:01 |
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| openstackgerrit | Lei Zhang proposed openstack/nova master: placement: add traits support in the AllocationCandidates object https://review.openstack.org/479766 | 06:23 |
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| jaypipes | sean-k-mooney: hey, thanks for reviewing the nested resource providers code series. I need to rebase all that and get it touched up before denver. | 07:19 |
| jaypipes | sean-k-mooney: a higher priority (IMHO at least) is the shared storage provider coverage. I believe cdent has been working on that | 07:20 |
| jaypipes | sean-k-mooney: and I'll be reviewing his patches today | 07:20 |
| jaypipes | sean-k-mooney: just FYI, I'm in Prague today and flying out to Ukraine tomorrow for ten days. So, will be in your timezone for the rest of the month | 07:21 |
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| openstackgerrit | Alex Xu proposed openstack/nova master: placement: ensure RP maps to those RPs that share with it https://review.openstack.org/480379 | 07:43 |
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| openstackgerrit | Lajos Katona proposed openstack/nova master: WIP: Add functional livemigrate test https://review.openstack.org/495170 | 07:47 |
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| openstackgerrit | Jay Pipes proposed openstack/nova-specs master: Return alternate allocation requests to scheduler https://review.openstack.org/471927 | 08:07 |
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| openstackgerrit | Evgeny Antyshev proposed openstack/nova master: No scsi unit information in instance XML https://review.openstack.org/495756 | 08:18 |
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| jaypipes | cdent: mornin. | 08:49 |
| cdent | jaypipes: hola, you still in prague? | 08:50 |
| jaypipes | cdent: ya, for today. leaving for Kharkiv tomorrow morning. | 08:50 |
| jaypipes | cdent: will be there through end of Aug. | 08:50 |
| cdent | did you manage to see prague or did you stay with your me-coding time? | 08:50 |
| jaypipes | cdent: yeah, went for a long walk to the Charles Bridge, Old Jewish cemetery, old town, palladium, and river front | 08:51 |
| openstackgerrit | Naichuan Sun proposed openstack/nova master: xenapi: Live migration failed in xapi pool https://review.openstack.org/489451 | 08:51 |
| jaypipes | cdent: still got my me-coding in though :) | 08:52 |
| cdent | good and good | 08:52 |
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| openstackgerrit | Maciej Kucia proposed openstack/nova master: SR-IOV passthrough: Check PF only if VF is enabled https://review.openstack.org/476642 | 09:05 |
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| openstackgerrit | Lajos Katona proposed openstack/nova master: Add functional force live migrate test https://review.openstack.org/495170 | 09:25 |
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| gibi | cdent, jaypipes: hi! Here is the force live migrate bugreport we talked about on Friday https://bugs.launchpad.net/nova/+bug/1712008 | 09:30 |
| openstack | Launchpad bug 1712008 in OpenStack Compute (nova) "Force live migrate doesn't claim resources on the target host" [Undecided,New] | 09:30 |
| cdent | thanks gibi | 09:30 |
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| gibi | cdent: thanks to lajoskatona | 09:32 |
| cdent | thank lajoskatona ! | 09:32 |
| gibi | cdent: I just the middle man in this case :) | 09:32 |
| lajoskatona | Hi, | 09:33 |
| lajoskatona | Nice to learn nova:-) | 09:33 |
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| maciejjozefczyk | jaypipes: Hi Jay, could you check this one? https://review.openstack.org/#/c/494974/ Is it possible to merge to Ocata? | 09:42 |
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| jaypipes | maciejjozefczyk: I have no merge permissions on stable branches (not on stable team) | 09:45 |
| cdent | jaypipes is a dangerous radical | 09:45 |
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| maciejjozefczyk | jaypipes: Oh, I see :) | 09:48 |
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| openstackgerrit | Béla Vancsics proposed openstack/nova master: Transform instance.resize.error notifications https://review.openstack.org/417882 | 09:54 |
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| openstackgerrit | Lajos Katona proposed openstack/nova master: Add functional force live migrate test https://review.openstack.org/495170 | 10:02 |
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| openstackgerrit | Merged openstack/python-novaclient master: Allow boot server with multiple nics https://review.openstack.org/492003 | 10:16 |
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| openstackgerrit | Lajos Katona proposed openstack/nova master: Add functional live migrate test https://review.openstack.org/495811 | 10:29 |
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| gibi | cdent: lajoskatona also found out that the non force live migration is also buggy but in a different way https://bugs.launchpad.net/nova/+bug/1712045 | 11:29 |
| openstack | Launchpad bug 1712045 in OpenStack Compute (nova) "nova doesn't clean up the resources after live migrate" [Undecided,New] | 11:29 |
| * cdent falls down | 11:29 | |
| gibi | cdent: here the doubling happens during the live migration but the source host is not cleaned up when the live migration finishes | 11:29 |
| cdent | presumably because it doesn’t count as a “resize” and resize_confirm doesn’t get called? | 11:30 |
| gibi | presumably, yes | 11:30 |
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| gibi | I had no time to look at this code parts and I will leave for a vacation this evening | 11:31 |
| gibi | so I let you guys to figure this out | 11:31 |
| cdent | If we don’t use all this stuff to completely gut the complexity of the resource tracker I am going to be very sad | 11:31 |
| gibi | cdent: the last two fixes both added a new function on the resource_tracker to handle the resource allocation | 11:32 |
| cdent | great! | 11:32 |
| cdent | :( | 11:32 |
| cdent | :) | 11:32 |
| gibi | cdent: but at least those are two small separate functions so those are easy to move around | 11:32 |
| cdent | yeah. The complexity is an inevitable result of organic growth. | 11:33 |
| cdent | gibi: going anywhere interesting for holiday? | 11:34 |
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| gibi | cdent: just couple of days in Maribor and Rijeka | 11:36 |
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| gibi | cdent: but there is a honeymoon we have to plan for spring | 11:37 |
| cdent | \o/ | 11:37 |
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| gibi | cdent: it will be someting that involves a big cruise ship | 11:38 |
| cdent | nice | 11:38 |
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| cdent | We got any cores around yet today, besides jaypipes ? This would be good to kick home: https://review.openstack.org/#/c/491529/ | 12:13 |
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| sean-k-mooney | jaypipes: got a link to cdent's shared storage provider patches? ill try to take a look at them if i get a chance. by the way is the master brance still locked down for pike or has it repoend for queens | 13:20 |
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| edleafe | jaypipes: jsut saw https://review.openstack.org/#/c/471927/ | 13:27 |
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| edleafe | jaypipes: I have series to do similar that I was just about to push :( | 13:27 |
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| edleafe | I took the series that I had already done before the switch to alloc candidates and updated it | 13:28 |
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| edleafe | oh geez - this is just the spec | 13:28 |
| edleafe | nvm | 13:28 |
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| sean-k-mooney | edleafe: sould like an easy win then if you add implementes(with the correct spelling): placement-allocation-requests | 13:33 |
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| alex_xu | gibi: a question about https://review.openstack.org/#/c/491529/14//COMMIT_MSG@17, is it a bug? | 13:34 |
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| openstackgerrit | Ed Leafe proposed openstack/nova master: WIP - add alternate hosts https://review.openstack.org/486215 | 13:36 |
| openstackgerrit | Ed Leafe proposed openstack/nova master: WIP - return alternates along with their allocations https://review.openstack.org/486253 | 13:36 |
| openstackgerrit | Ed Leafe proposed openstack/nova master: WIP - Add allocations to the values returned from the scheduler https://review.openstack.org/495854 | 13:36 |
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| gibi | alex_xu: no, it is not a bug. It is the way how the resouce claiming was implemented in the scheduler for the move operations | 13:39 |
| gibi | alex_xu: there was couple of irc discussion about it in the past | 13:39 |
| gibi | alex_xu: here is some irc history http://p.anticdent.org/logs/openstack-nova?dated=2017-08-08%2012:29:21.129291#15Hv | 13:40 |
| stephenfin | cdent: Done | 13:40 |
| stephenfin | https://review.openstack.org/#/c/491529/, that is | 13:40 |
| cdent | thanks stephenfin welcome back | 13:41 |
| stephenfin | cdent: Cheers :) | 13:41 |
| * stephenfin is working through (extensive) email backlogs today and missing sunshine | 13:41 | |
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| cdent | I’m trying to sit outside in the sun but it may be too squinty | 13:42 |
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| stephenfin | The rain is bouncing off the pavement outside. I'm not at all jealous :D | 13:43 |
| edleafe | cdent: I gotta make my eclipse viewing box this morning | 13:43 |
| gibi | alex_xu, stephenfin: as you are already looking at functional tests and scheduling, there are two additional test patch that needs core eyes | 13:43 |
| gibi | alex_xu, stephenfin https://review.openstack.org/#/c/495159/ | 13:43 |
| gibi | alex_xu, stephenfin: https://review.openstack.org/#/c/493865/ | 13:43 |
| cdent | edleafe: are you in the path? I thought you were too far south | 13:43 |
| edleafe | Partial | 13:44 |
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| cdent | like your soul | 13:45 |
| dansmith | I'm at 99.6% | 13:45 |
| dansmith | don't expect me around much until after :) | 13:45 |
| cdent | dansmith: are you overrun nearby by tourists and such? | 13:46 |
| dansmith | cdent: no, I live in a heavily fortified mountaintop stronghold remember? | 13:46 |
| * gibi is jealous for the eclipse | 13:46 | |
| cdent | dansmith: understood, but I wondered if there might be people at the walls | 13:46 |
| edleafe | cdent: this is as good as it will get for me: http://imgur.com/a/z6FfF | 13:46 |
| dansmith | but in reality, so far the traffic apocolypse hasn't been a thing | 13:47 |
| dansmith | cdent: heh, not yet :) | 13:47 |
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| edleafe | dansmith: my sister-in-law lives in Albany. She says traffic has been hell there for the past week | 13:47 |
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| dansmith | edleafe: yeah, I think the places without road capacity are feeling it, but the bigger places haven't had the troubles they expected | 13:48 |
| dansmith | we were over in eastern/central this weekend and it was a ghost town | 13:48 |
| dansmith | gas stations have been stockpiling toilet paper and bullets for weeks and it was all for naught | 13:48 |
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| edleafe | heh | 13:49 |
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| edleafe | Well, for once Albany has something to attract tourists | 13:49 |
| dansmith | heh | 13:49 |
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| edleafe | Scheduler subteam meeting in 5 minutes in #openstack-meeting-alt | 13:55 |
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| mriedem | hmm, so i heard stable gate sucked last week | 14:07 |
| mriedem | and continues to suck | 14:07 |
| mriedem | looking at a failure, the ComputeFilter kicked something out because the single-node host job has 4 VMs on it already | 14:07 |
| mriedem | vcpus=8,vcpus_used=4 | 14:08 |
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| mriedem | ^ is the compute node stats before the NoValidHost | 14:08 |
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| mriedem | seems odd given there is capacity left on that node and it's also weird that we have CoreFilter enabled in devstack since it was disabled by default in code | 14:12 |
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| alex_xu | gibi: thanks, i will read the irc log | 14:14 |
| mriedem | https://goo.gl/g7LGmM | 14:14 |
| cdent | what manner of malware are you sending us to with that link mriedem ? | 14:15 |
| mriedem | logstash | 14:15 |
| cdent | mriedem: you’re being semi-ignored becasue I think anyone who cares is over in the scheduler meeting at the mo | 14:16 |
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| mriedem | i know | 14:16 |
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| alex_xu | mriedem: fyi, a regression in python-novaclient https://review.openstack.org/#/c/492003/, not sure whether it is worth a release | 14:18 |
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| mriedem | alex_xu: so it's been broken since 9.0.0 | 14:19 |
| mriedem | if https://review.openstack.org/#/c/429512/ caused it | 14:19 |
| alex_xu | yea, probably for a while | 14:20 |
| mriedem | then we'll probably just fix in a patch release once stable/pike is ok for python-novaclient releases | 14:20 |
| sean-k-mooney | mriedem: it is requsting 8 vcpus it should fit but it would be oversubscribing though not against itself | 14:20 |
| mriedem | sean-k-mooney: it's requesting 1 vcpu | 14:21 |
| sean-k-mooney | mriedem: i assume that the 4 cores already in use are not dedicated? | 14:21 |
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| alex_xu | ok | 14:21 |
| mriedem | sean-k-mooney: we don't have cpu pinning in the upstream infra gate jobs no | 14:21 |
| sean-k-mooney | mriedem: ah sorry missread http://logs.openstack.org/28/468528/2/check/gate-tempest-dsvm-neutron-full-ubuntu-xenial/337af98/logs/screen-n-sch.txt#_2017-08-21_04_15_14_765 | 14:21 |
| sean-k-mooney | {"cores": 1, "cells": 1, "threads": 1, "sockets": 8} | 14:22 |
| sean-k-mooney | that is for the host | 14:22 |
| sean-k-mooney | not the vm right | 14:22 |
| mriedem | correct | 14:22 |
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| mriedem | looking at the CoreFilter code this doesn't make any sense | 14:25 |
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| mriedem | we have 8 total, and cpu_allocation_ratio is 16.0, so we end up with vcpus_total = 24, 24-vcpus_used (4) = 20, so we have 20 free vcpus and we're requesting 1 | 14:26 |
| cdent | mriedem: is that a new vm or move/migration/whatever? | 14:27 |
| mriedem | new vm | 14:27 |
| sean-k-mooney | mriedem: well you should be able to use 128 vcps with 8 cpus and an allocation ratios of 16. anyway did you notice this error 'disabled_reason': u'AUTO: Connection to libvirt lost: | 14:28 |
| sean-k-mooney | at http://logs.openstack.org/28/468528/2/check/gate-tempest-dsvm-neutron-full-ubuntu-xenial/337af98/logs/screen-n-sch.txt#_2017-08-21_04_15_14_766 | 14:28 |
| mriedem | hmm seeing that now yeah | 14:29 |
| mriedem | oh duh, | 14:30 |
| mriedem | it's not the CoreFilter, it's the ComputeFilter | 14:30 |
| mriedem | god | 14:30 |
| sean-k-mooney | there are a load of tracebacks in the n-cpu log | 14:31 |
| sean-k-mooney | NeutronAdminCredentialConfigurationInvalid: Networking client is experiencing an unauthorized exception. | 14:31 |
| openstackgerrit | Balazs Gibizer proposed openstack/nova master: WIP: test allocation handling during scheduler retry https://review.openstack.org/495891 | 14:31 |
| mriedem | sean-k-mooney: that one is a known issue, | 14:32 |
| mriedem | the real problem is libvirt crashed | 14:32 |
| mriedem | so the libvirt driver auto-disables the compute service | 14:32 |
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| sean-k-mooney | mriedem: there does not seam to be any usfull info in the libvirtd log other then a bunch of virNetlinkEventCallback spam | 14:35 |
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| guimaluf | Could you guys help me to debug this error? http://paste.openstack.org/show/618918/ I'm trying to launch an instance within my testing environment, which consist of 4 vms, keystone/api-controllers, mysql/ceph/rabbitmq, neutron and nova. | 14:35 |
| guimaluf | my concern is mainly focused on HTTPMultipleChoices: HTTPMultipleChoices (HTTP 300) Requested version of OpenStack Images API is not available. I expect nova to contact glance v2 api, but it is trying to reach v1 even with only v2 available | 14:36 |
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| mriedem | sean-k-mooney: i won't pursue any further - libvirt crashing is not a new thing in the gate | 14:37 |
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| sean-k-mooney | mriedem: well strangly the libvirtd log seams to still be active when the connection drops on the nova side but ya this does not really look like it s novas problem | 14:41 |
| sean-k-mooney | mriedem: the compute agent will reconnect and reactivate itself anyway correct | 14:41 |
| mriedem | yes | 14:41 |
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| mriedem | in a prod cloud with hundreds/thousands of nodes, that's probably good enough | 14:42 |
| mriedem | for single node gate jobs it's a killer | 14:42 |
| sean-k-mooney | ya tempest could maybe retry the failed jobs automatically to a certenlimit at the end fo the run in the future but honestly that will likey just slow down the gate when code is actully broken | 14:43 |
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| maciejjozefczyk | guimaluf: check nova-scheduler and rabbitmq | 14:49 |
| maciejjozefczyk | guimaluf: s/nova-scheduler/nova-conductor/ | 14:50 |
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| mriedem | maciejjozefczyk: anything glance related is likely blowing up in the api | 14:51 |
| mriedem | sounds like misconfiguration | 14:51 |
| mriedem | [glance]api_servers is where i'd look | 14:51 |
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| mriedem | in nova.conf | 14:51 |
| mriedem | and make sure that matches what's in the service catalog for the image service | 14:51 |
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| maciejjozefczyk | mriedem: Could you check this cherry-pick https://review.openstack.org/#/c/494974/ please :) ? | 14:57 |
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| mriedem | maciejjozefczyk: has to go through pike first, | 14:59 |
| mriedem | and i see the cherry pick for pike, but this isn't a regression in pike, so i'm not sure we should include it in the rc2 for pike | 14:59 |
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| maciejjozefczyk | mriedem: So it should wait for stable pike? | 15:01 |
| mriedem | maciejjozefczyk: it has to be in stable/pike before we can merge it in stable/ocata, yes | 15:01 |
| mriedem | i'm not sure yet if it should be in rc2 for pike | 15:01 |
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| maciejjozefczyk | mriedem: ok | 15:03 |
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| mriedem | man i guess you guys were busy last week https://review.openstack.org/#/q/status:merged+project:openstack/nova+branch:stable/pike | 15:05 |
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| dansmith | mriedem: anything you see in there that wasn't legit? | 15:06 |
| dtantsur | folks, do you by chance know who is leading https://etherpad.openstack.org/p/queens-PTG-vmbm ? I should have been aware of it, but I'm not :) | 15:06 |
| cdent | dtantsur: probably johnthetubaguy ? | 15:07 |
| dansmith | mriedem: some of the work required some test backports for cleanliness | 15:07 |
| mriedem | dansmith: yeah that looks like the evacuate/shelve offload tests from givi | 15:07 |
| mriedem | *gib | 15:07 |
| mriedem | gdi | 15:07 |
| mriedem | gibi | 15:07 |
| dansmith | yeah | 15:07 |
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| * mriedem hasn't used a computer in a week | 15:07 | |
| dtantsur | johnthetubaguy: is it you? :) | 15:07 |
| mriedem | dansmith: i found one major issue here https://review.openstack.org/#/c/493037/4/nova/compute/resource_tracker.py@1225 | 15:09 |
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| dansmith | mriedem: oh the humanity | 15:09 |
| gibi | mriedem: welcome back. :) | 15:10 |
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| mriedem | thanks | 15:13 |
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| mriedem | it's going to be a rough couple of days so give me softballs if you have them | 15:16 |
| gibi | I'm going for vacation this week so I can promise that I will not file yet another resource allocation bugs. :) | 15:17 |
| mriedem | q | 15:19 |
| mriedem | oops | 15:19 |
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| mriedem | ocata 15.0.7 release request https://review.openstack.org/495903 | 15:22 |
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| guimaluf | maciejjozefczyk, the error I mentioned is happening on nova-compute node, no errs on conductor logs. I'll enable debug to see if there is something meaningful | 15:26 |
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| dansmith | mriedem: I left this for you to make a call on: https://review.openstack.org/#/c/494973/ | 15:28 |
| openstackgerrit | Merged openstack/nova master: replace chance with filter scheduler in func tests https://review.openstack.org/491529 | 15:29 |
| openstackgerrit | Merged openstack/nova master: Clarify that vlan feature means nova-network support https://review.openstack.org/478551 | 15:29 |
| mriedem | dansmith: yeah saw that, wasn't sure since it's not a regression in pike | 15:33 |
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| dansmith | mriedem: yeah thought that was the right call, but figured I'd leave it to you.. can wait until after pike releases and then push the backport like normal | 15:34 |
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| openstackgerrit | Stephen Finucane proposed openstack/nova master: Remove plug_ovs_hybrid, unplug_ovs_hybrid https://review.openstack.org/483030 | 15:45 |
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| lvdombrkr | hello guys, im trieng deploy tripleO , and after trying deploy overcloud get error: http://paste.openstack.org/raw/618917/ , in nova scheduler logs i see that tha node is filtred out http://paste.openstack.org/raw/618930/ | 15:48 |
| lvdombrkr | but i dont uderstand why | 15:48 |
| lvdombrkr | any ideas? | 15:49 |
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| openstackgerrit | Stephen Finucane proposed openstack/nova master: tests: Remove useless test https://review.openstack.org/483031 | 15:50 |
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| openstackgerrit | Stephen Finucane proposed openstack/nova master: console: introduce basic framework for security proxying https://review.openstack.org/345396 | 15:55 |
| openstackgerrit | Stephen Finucane proposed openstack/nova master: console: introduce framework for RFB authentication https://review.openstack.org/345397 | 15:55 |
| openstackgerrit | Stephen Finucane proposed openstack/nova master: console: introduce the VeNCrypt RFB authentication scheme https://review.openstack.org/345398 | 15:55 |
| openstackgerrit | Stephen Finucane proposed openstack/nova master: console: provide an RFB security proxy implementation https://review.openstack.org/345399 | 15:55 |
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| mriedem | disabling RamFilter by default hits it's first victim https://bugs.launchpad.net/nova/+bug/1712057 | 15:57 |
| openstack | Launchpad bug 1712057 in OpenStack Compute (nova) "When the specified destination host deploys the virtual machine, the allocation ratio is not valid" [Undecided,Invalid] - Assigned to wangyicheng (wang-yicheng) | 15:57 |
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| mriedem | dansmith: did anyone mention this https://review.openstack.org/#/c/495811/ ? | 15:58 |
| cfriesen_ | mriedem: whee! do we want to fill in the limits filter somewhere else? | 15:58 |
| cfriesen_ | make that just limits, not filter | 15:58 |
| mriedem | cfriesen_: the intent is to remove all of that stuff eventually, so i don't think so | 15:58 |
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| mriedem | the limits are used in the claims code in the compute | 15:58 |
| mriedem | i suspect the reporter of that bug has out of tree code that's relying on the limits | 15:59 |
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| cdent | mriedem: what do you mean by “mention this”? gibi posted about it this morning, the author of the new live migration tests is his colleague. gibi’s going on vacation, so “left it to us” | 16:03 |
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| mriedem | mention as in, this could be an rc2 blocker | 16:03 |
| mriedem | since it wasn't tagged | 16:03 |
| mriedem | or in the etherpad | 16:03 |
| cdent | I think it’s new since the weekend | 16:05 |
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| openstackgerrit | Stephen Finucane proposed openstack/nova master: trivial: Remove dead function, variable https://review.openstack.org/491512 | 16:09 |
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| dansmith | mriedem: mention what? | 16:15 |
| dansmith | mriedem: oh no | 16:15 |
| openstackgerrit | Stephen Finucane proposed openstack/nova master: conf: Convert 'live_migration_inbound_addr' to HostAddressOpt https://review.openstack.org/456573 | 16:17 |
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| lvdombrkr | hello guys, im trieng deploy tripleO , and after trying deploy overcloud get error: http://paste.openstack.org/raw/618917/ , in nova scheduler logs i see that tha node is filtred out http://paste.openstack.org/raw/618930/ | 16:23 |
| lvdombrkr | but i dont uderstand why | 16:23 |
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| lvdombrkr | any ideas? | 16:23 |
| stephenfin | lvdombrkr: Looks like you'd be better asking #openstack or #tripleo | 16:24 |
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| mriedem | mnestratov|2: fyi https://bugs.launchpad.net/nova/+bug/1711547 | 16:28 |
| openstack | Launchpad bug 1711547 in OpenStack Compute (nova) "Nova service restart disconnects vzstorage volumes" [Undecided,New] | 16:28 |
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| mnestratov|2 | thanks | 16:29 |
| mnestratov|2 | we will take care of it | 16:32 |
| openstackgerrit | Stephen Finucane proposed openstack/nova master: doc: Address review comments for main index https://review.openstack.org/492645 | 16:32 |
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| mriedem | here is that fun ip filtering known issue rearing it's head https://bugs.launchpad.net/nova/+bug/1711303 | 16:33 |
| openstack | Launchpad bug 1711303 in OpenStack Compute (nova) "Filter instances by IP when listing is not efficient enough" [Undecided,Confirmed] | 16:33 |
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| cfriesen_ | is anyone aware of a spec around enabling L3 cache in the guests in libvirt? | 16:47 |
| cfriesen_ | or even a blueprint | 16:48 |
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| openstackgerrit | Eric Young proposed openstack/nova-specs master: Add ScaleIO ephemeral storage backend https://review.openstack.org/495922 | 16:49 |
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| openstackgerrit | Sumedh Degaonkar proposed openstack/nova master: Adds 'sata' as a valid disk bus for qemu and kvm hypervisors https://review.openstack.org/459794 | 17:11 |
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| openstackgerrit | Chris Dent proposed openstack/nova master: WIP: [placement] manage cache headers https://review.openstack.org/495380 | 17:21 |
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| mriedem | https://review.openstack.org/#/c/495170/ looks legit, just needs some small things cleaned up | 18:37 |
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| dansmith | is anyone working on the actual fix for that? | 18:47 |
| mriedem | i'm investigating | 18:47 |
| mriedem | found some more fun | 18:47 |
| mriedem | when you're force live migrating to a specific destination host, conductor checks that there is enough ram https://github.com/openstack/nova/blob/16.0.0.0rc1/nova/conductor/tasks/live_migrate.py#L103 | 18:48 |
| mriedem | via the compute node info, not placement | 18:48 |
| dansmith | ah interesting | 18:49 |
| mriedem | not an immediate problem, | 18:49 |
| mriedem | but will be once we don't track that anymore in the RT/claim | 18:49 |
| dansmith | yeah | 18:49 |
| mriedem | i'll report a bug to track that | 18:49 |
| sean-k-mooney | is there an equivelent to nova reset-state in the openstack client? | 18:49 |
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| mriedem | dansmith: i think this existing bug will suffice to track that https://bugs.launchpad.net/nova/+bug/1427772 | 18:54 |
| openstack | Launchpad bug 1427772 in OpenStack Compute (nova) "Instance that uses force-host still needs to run some filters" [Low,Confirmed] | 18:54 |
| mriedem | i just left a new comment for the new state of the world wrt scheduler and compute and RT | 18:55 |
| mriedem | and tagged with placement so it shows up in cdent's weekly email | 18:55 |
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| dansmith | I guess.. the link between the two is a little vague | 18:56 |
| mriedem | it could be a separate bug | 18:56 |
| mriedem | dansmith: so the bug is that when forcing the live migration to a specific host, we don't call scheduler_client.select_destinations | 18:59 |
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| mriedem | which is eventually the thing that does the double claim on source and dest | 18:59 |
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| mriedem | and we don't 'heal' the allocations since everything, at least in this scenario, is pike, so the RT isn't healing | 19:00 |
| mriedem | because of https://review.openstack.org/#/c/491012/ | 19:00 |
| mriedem | in both cases, conductor calls def check_can_live_migrate_destination on the dest host | 19:01 |
| mriedem | so we could create the allocation for the instance and that compute there, or just do it in conductor if we're bypassing the scheduler | 19:01 |
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| mriedem | probably simpler to just do it in from conductor, plus then we don't have to worry about check_can_live_migrate_destination trampling over allocations that the scheduler already created | 19:02 |
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| dansmith | mriedem: right | 19:06 |
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| dansmith | mriedem: I guess I was thinking we should do select_destinations with a force_host of where we're expecting to go so that it creates the allocations properly | 19:07 |
| dansmith | the whole point of the mess we made in pike was to stop managing allocations from separate places (i.e. the compute nodes) so adding another one is not ideal | 19:08 |
| mriedem | yeah it wouldn't be fun doing a new thing from conductor just to mimic what the scheduler is doing | 19:08 |
| mriedem | also because takashi wants to do this same thing for cold migrations | 19:08 |
| mriedem | well, takashi and others... | 19:09 |
| dansmith | aye | 19:09 |
| mriedem | so now i'm looking at what conductor does when there isn't a forced destination host https://github.com/openstack/nova/blob/16.0.0.0rc1/nova/conductor/tasks/live_migrate.py#L153 | 19:10 |
| mriedem | the request spec stuff gets pretty confusing in here | 19:10 |
| mriedem | for compat things | 19:10 |
| mriedem | we wouldn't call _find_destination i realize, | 19:11 |
| mriedem | i'm just not sure how much we need to pass in the existing request spec with some "use this host, seriously" field set | 19:11 |
| mriedem | would the scheduler also run the filters on the forced host in this case? | 19:13 |
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| mriedem | that might take the 'force-ness' out of it a bit if you fail to force because of a scheduler filter - but would allow us to remove this code https://github.com/openstack/nova/blob/16.0.0.0rc1/nova/conductor/tasks/live_migrate.py#L103 | 19:14 |
| dansmith | mriedem: the scheduler won't know why you're running it | 19:14 |
| dansmith | the point is, | 19:15 |
| dansmith | the select_destinations() call should eliminate the need to manually check for memory space on the destination, | 19:15 |
| mriedem | from conductor | 19:15 |
| mriedem | i agree | 19:15 |
| dansmith | because if it doesn't return the host you asked for then you fail with "sorry this peg doesn't fit in that hole" | 19:15 |
| dansmith | yeah | 19:15 |
| mriedem | yeah which is nice | 19:16 |
| mriedem | removes my issue with that code not using placement | 19:16 |
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| mriedem | so it seems all we need to do then is have conductor set force_hosts/nodes on the request spec and call select_destinations - if that raises NoValidHost, we know what to do | 19:17 |
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| mriedem | i seriously feel like if i try to monkey with the request spec there is some landmine that will blow off at least 2 fingers | 19:17 |
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| dansmith | hah | 19:18 |
| mriedem | this could also go away assuming you have the ComputeFilter enabled https://github.com/openstack/nova/blob/16.0.0.0rc1/nova/conductor/tasks/live_migrate.py#L85 | 19:18 |
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| mriedem | i think it's basically this that we need https://github.com/openstack/nova/blob/16.0.0.0rc1/nova/compute/api.py#L3880-L3884 | 19:22 |
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| mriedem | god, why doesn't this check if self.requested_destination is set when converting down to a legacy filter_properties dict? https://github.com/openstack/nova/blob/16.0.0.0rc1/nova/objects/request_spec.py#L347 | 19:26 |
| mriedem | requested_destination essentially supersedes force_hosts/nodes doesn't it? | 19:27 |
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| dansmith | mriedem: afaik yeah | 19:30 |
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| mriedem | weird, ok, because it's not consulted at all, from what i can tell, when converting a request spec to an older version | 19:31 |
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| mriedem | oh you know what else, this bypasses our same-cell check | 19:32 |
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| mriedem | so you could force a host for live migration in another cell | 19:32 |
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| mriedem | this force live migration thing is all sorts of f'ed | 19:33 |
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| dansmith | yeah, so all the more reason to let it do the cell and memory check in one go of select_destinations right? | 19:35 |
| mriedem | yeah, although i don't see where in the scheduler we check that the requested destination is in the same cell... | 19:35 |
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| mriedem | get_host_states_by_uuids ? | 19:35 |
| mriedem | https://github.com/openstack/nova/blob/16.0.0.0rc1/nova/scheduler/host_manager.py#L635 | 19:36 |
| dansmith | yeah | 19:36 |
| mriedem | cool, ok, so i think this narrows things a bit | 19:36 |
| mriedem | i think we are missing some stuff in the request spec backport to legacy format stuff, but i'm not messing with that | 19:37 |
| mriedem | those are all bauzas questions | 19:37 |
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| mriedem | since it seems there are 4 ways to construct a request spec for the scheduler | 19:37 |
| dansmith | yeah that whole mess is still...a mess | 19:39 |
| mriedem | well it's 2:40pm on my first day back and i'm already knee deep in a mess that has to be fixed for rc2 | 19:39 |
| mriedem | yay! | 19:39 |
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| dansmith | well, | 19:40 |
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| dansmith | presumably we _could_ just document and fix post release if needed | 19:40 |
| dansmith | if it helps | 19:40 |
| mriedem | yeah i thought about that | 19:40 |
| mriedem | known issue and all | 19:40 |
| mriedem | "known regression" | 19:41 |
| mriedem | "at least we let you know about it beforehand, you're welcome" | 19:41 |
| dansmith | we wouldn't want to wait long, of course, but.. | 19:41 |
| dansmith | things could be worse | 19:41 |
| mriedem | yeah | 19:41 |
| mriedem | i.e. optional api | 19:41 |
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| mriedem | ok i'll wip something together and put it on top of https://review.openstack.org/#/c/495170/ and see what happens | 19:42 |
| dansmith | okay | 19:43 |
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| openstackgerrit | Merged openstack/nova master: Correct statement in api-ref https://review.openstack.org/495724 | 19:43 |
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| mriedem | this was the other bug, I haven't triaged it yet https://bugs.launchpad.net/nova/+bug/1712045 | 19:54 |
| openstack | Launchpad bug 1712045 in OpenStack Compute (nova) "nova doesn't clean up the resources after live migrate" [Undecided,New] | 19:54 |
| mriedem | looks similar to what was needed with evacuate though https://review.openstack.org/#/c/494625/1/nova/compute/manager.py | 19:55 |
| mriedem | remove the allocations for the instance and the source node | 19:55 |
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| dansmith | yeah | 19:56 |
| dansmith | mriedem: that test for the bug you're working on has the post assertion for the destination's allocations commented out, | 19:58 |
| dansmith | so fixing 1712045 will be required for that one too I think | 19:58 |
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| openstackgerrit | Merged openstack/nova master: doc: Address review comments for contributor index https://review.openstack.org/491517 | 20:06 |
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| mriedem | wtf, is local docs build blowing up a known issue? | 20:07 |
| mriedem | https://gist.github.com/mriedem/4a6dcb52ed867af14f16989d7b83739a | 20:07 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova master: doc: Address review comments for main index https://review.openstack.org/492645 | 20:18 |
| mriedem | dansmith: i think we should probably get ^ to rc2 to fix the "OpenSack" thing in the first section you read in nova's docs | 20:19 |
| dansmith | lol | 20:19 |
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| openstackgerrit | Ilya Popov proposed openstack/nova master: Tests: Add cleanup of 'instances' directory https://review.openstack.org/491589 | 20:26 |
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| mriedem | as for that live migration test, yeah it's a mix of both bugs, and the comments are wrong for some of the existing test | 20:32 |
| mriedem | i'll update that test also | 20:32 |
| dansmith | mriedem: well, I have the change made for the post-migration update I think, but I can't really use it until I have your patch to create the doubled allocation in the scheduler | 20:32 |
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| mriedem | cleaning up the test atm | 20:33 |
| dansmith | otherwise I'm trying to push empty allocations to placement | 20:33 |
| dansmith | no problem, just FYI | 20:33 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova master: Add functional live migrate test https://review.openstack.org/495811 | 20:38 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Add functional force live migrate test https://review.openstack.org/495170 | 20:38 |
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| mriedem | ok +2 on both of the live migration functional tests | 20:45 |
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| mriedem | i was thinking that with setting RequestSpec.requested_destination we might end up bypassing the filtering for MEMORY_MB in placement, but looks like we do that first regardless of the requested/forced host | 21:14 |
| mriedem | so we always call to placement to get the candidates, and then wittle that down based on forced hosts, and then further filter that using the filters | 21:14 |
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| mriedem | so we should be ok with removing that ram check in the live migration task in conductor | 21:14 |
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| cfriesen_ | mriedem: looking at your comments for https://bugs.launchpad.net/nova/+bug/1712008 I guess that actually calling the scheduler will end up filtering for cells as well? | 21:23 |
| openstack | Launchpad bug 1712008 in OpenStack Compute (nova) pike "Force live migrate doesn't claim resources on the target host" [Critical,Triaged] | 21:23 |
| mriedem | nope | 21:24 |
| mriedem | because conductor doesn't set request_spec.requested_destination.cell | 21:24 |
| mriedem | in the LiveMigrateTask | 21:24 |
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| cfriesen_ | mriedem: that bug is in the context of forcing a host...how is it even valid to claim resources when forcing a host? It could end up consuming resources that aren't available. | 21:38 |
| cfriesen_ | mriedem: (when factoring in overcommit etc) | 21:39 |
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| mriedem | cfriesen_: pre-placement you'd end up claiming resources in the compute anyway | 21:39 |
| mriedem | via the resource tracker | 21:39 |
| mriedem | yo'ud just fail much later | 21:39 |
| mriedem | but let me verify that first | 21:40 |
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| mriedem | hmm, yeah we don't call the resource tracker to make a claim during live migration... | 21:42 |
| cfriesen_ | mriedem: that's part of the patch series that's been under review forever | 21:43 |
| mriedem | so, we don't want to build more on claims in the computes, yes? | 21:44 |
| mriedem | because the RT is a mess | 21:44 |
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| mriedem | and we are moving things to the scheduler so we can make more accurate decisions when building instances up front, rather than rely on reschedules | 21:44 |
| mriedem | yes? | 21:44 |
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| cfriesen_ | As I understand it we want to do the claims from the scheduler. I'm not sure what meaning "force" has when it comes to things like cpu pinning, hugepages, PCI devices, etc. | 21:45 |
| mriedem | force from the api just meant use this host i'm giving you | 21:48 |
| mriedem | rather than leave it up to the scheduler to pick one randomly | 21:48 |
| mriedem | now reading https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id27 this could be considered an API change | 21:49 |
| cfriesen_ | mriedem: you can specify which host you want without using "force"...."force" just means "not verifying the provided destination host by the scheduler". | 21:49 |
| mriedem | "Also changes the live-migrate action behaviour when providing a host string field by calling the nova scheduler to verify the provided host unless the force attribute is set." | 21:49 |
| mriedem | yeah point taken | 21:49 |
| mriedem | so if the point of the force flag is to not call the scheduler, because you don't care about filters or anything, | 21:50 |
| cfriesen_ | so if we passed the force option to the scheduler, and if set we skip all the filters/weighters but still do the claim | 21:50 |
| mriedem | but we want to call the scheduler to do the allocation on the dest host, then we have a conflict | 21:50 |
| mriedem | and we don't want to do the allocation on the dest host from conductor, since that triplicates that behavior between nova-compute, nova-scheduler and nova-conductor | 21:51 |
| cfriesen_ | I think we could get the spirit of the "force" option by still calling the scheduler but skipping the filters/weighers | 21:51 |
| cfriesen_ | that would allow us to avoid additional duplication | 21:52 |
| mriedem | that probably involves passing yet another ignore/force type thing to the scheduler | 21:52 |
| cfriesen_ | yea | 21:52 |
| mriedem | request spec already has ignore_hosts and force_hosts | 21:52 |
| mriedem | and requested_destination | 21:52 |
| mriedem | this would be, ignore source host, force dest host, but seriously, really ignore and force everything wink wink | 21:52 |
| cfriesen_ | hmm...what's the difference between force_hosts and requested_destination? | 21:52 |
| mriedem | cfriesen_: see the email i just send to the ML :) | 21:52 |
| cfriesen_ | lol | 21:53 |
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| cfriesen_ | right. maybe we can reuse force_hosts to tell it to skip the filters/weighers but still do claims | 21:54 |
| mriedem | no that gets really confusing | 21:54 |
| mriedem | adds more confusion to an already really confusing thing i mean | 21:54 |
| cfriesen_ | I think "ignore_hosts" is more than just ignore source...it's also used to keep track of hosts we've already tried (when doing a reschedule) | 21:54 |
| mriedem | like, i think force_hosts is used today in the scheduler hint for picking a specific host using scheduler hints | 21:55 |
| mriedem | and that goes through the filters/weighers | 21:55 |
| mriedem | yes it is | 21:55 |
| cfriesen_ | the joys of an organically grown API. :) | 21:55 |
| mriedem | so if we pass something to the scheduler, i'd say it's an explicit new flag, called skip_filters or something | 21:55 |
| cfriesen_ | yeah, that's probably cleanest | 21:55 |
| cfriesen_ | I can probably take on the limit-live-mig-dest-to-same-cell thing if you haven't already started it. | 21:56 |
| mriedem | i'm sort of doing that as part of this other fix for the allocations thing, but it's going to require a separate bug and patch for the non-force case | 21:57 |
| mriedem | i'm opening that bug now | 21:57 |
| mikal | . | 22:02 |
| mriedem | cfriesen_: https://bugs.launchpad.net/nova/+bug/1712210 | 22:02 |
| openstack | Launchpad bug 1712210 in OpenStack Compute (nova) "Live migration does not restrict to the original cell" [Medium,New] | 22:02 |
| mriedem | dansmith: you're working on https://bugs.launchpad.net/nova/+bug/1712045 right? if so, i'll assign it to you | 22:03 |
| openstack | Launchpad bug 1712045 in OpenStack Compute (nova) pike "nova doesn't clean up the resources after live migrate" [Critical,Triaged] | 22:03 |
| dansmith | mriedem: I have some code for it yeah, waiting for your change to the conductor task | 22:11 |
| mriedem | i'm code is a turd at this point - likely need to pass a flag to select_destinations as was just talking about with cfriesen_ ^ | 22:12 |
| mriedem | but, i've got something, running the functional test to update it, and then will push up the wip for discussion | 22:12 |
| openstackgerrit | Merged openstack/nova master: doc: Address review comments for main index https://review.openstack.org/492645 | 22:13 |
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| mriedem | here is that docs backport https://review.openstack.org/#/c/495977/ | 22:17 |
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| dansmith | mriedem: +2+W I assume? | 22:21 |
| mriedem | of course | 22:21 |
| mriedem | unless we put mikal back on the nova-release team for 1 week only :) | 22:22 |
| mriedem | throwback week | 22:22 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova master: WIP: Allocate resources on forced dest host during live migration https://review.openstack.org/496031 | 22:39 |
| mriedem | dansmith: cfriesen_: ok here is my wip for the bug where we don't create allocations for the dest node during forced live migration ^ lots of TODOs for things i need to consider still, plus as cfriesen_ pointed out it's probably wrong anyway since it's breaking the api contracton how that force flag is supposed to work | 22:40 |
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| mriedem | these force flags are a bad idea | 22:45 |
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| openstackgerrit | Dan Smith proposed openstack/nova master: Remove source node allocation after live migration completes https://review.openstack.org/496032 | 22:50 |
| dansmith | mriedem: ^ | 22:50 |
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| mriedem | hawt | 22:54 |
| mriedem | with that, i'm going to gymnastics! | 22:54 |
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| cburgess | lol | 22:56 |
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