Thursday, 2018-07-19

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openstackgerritMatt Riedemann proposed openstack/nova master: Use consumer generation in _heal_allocations_for_instance  https://review.openstack.org/57790501:06
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openstackgerritMerged openstack/python-novaclient master: Microversion 2.64 - Use new format policy in server group  https://review.openstack.org/57826101:39
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openstackgerritTakashi NATSUME proposed openstack/nova master: Making consistent used of GiB and MiB in API ref  https://review.openstack.org/55998501:52
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mriedemif someone is looking for something to investigate today https://bugs.launchpad.net/nova/+bug/178246802:19
openstackLaunchpad bug 1782468 in OpenStack Compute (nova) "driver notes in feature support matrix don't render" [Medium,Confirmed]02:19
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openstackgerritMatt Riedemann proposed openstack/nova master: Add encrypted volume support to feature matrix docs  https://review.openstack.org/57025502:21
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openstackgerritMatt Riedemann proposed openstack/nova master: Remove support for /os-floating-ips-bulk REST API  https://review.openstack.org/58291202:23
openstackgerritMatt Riedemann proposed openstack/nova master: Remove support for /os-floating-ip-dns REST API  https://review.openstack.org/58294302:23
openstackgerritMatt Riedemann proposed openstack/nova master: Remove "DEPRECATED" tag from Obsolete APIs  https://review.openstack.org/58309202:23
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openstackgerritfupingxie proposed openstack/nova master: Delete allocations when it is re-allocated  https://review.openstack.org/58289902:42
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openstackgerritGhanshyam Mann proposed openstack/nova master: Use Tempest scenario job to run all scenario tests  https://review.openstack.org/58384004:20
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openstackgerritGhanshyam Mann proposed openstack/nova master: Use Tempest scenario job to run all scenario tests  https://review.openstack.org/58384004:35
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openstackgerritGhanshyam Mann proposed openstack/nova master: Fix ServerMigrationSampleJsonTests to use sample files from version dir  https://review.openstack.org/58270205:13
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openstackgerritfupingxie proposed openstack/nova master: Delete allocations when it is re-allocated  https://review.openstack.org/58289905:47
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openstackgerritChen proposed openstack/python-novaclient master: Fix inconsistency  https://review.openstack.org/57277006:33
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openstackgerritGhanshyam Mann proposed openstack/nova master: Merge server create for config_drive extension  https://review.openstack.org/58353806:35
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openstackgerritGhanshyam Mann proposed openstack/nova master: Merge server create for bdm extensions  https://review.openstack.org/58355906:38
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openstackgerritChen proposed openstack/python-novaclient master: Fix inconsistency  https://review.openstack.org/57277006:42
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openstackgerritChen proposed openstack/nova master: Fix soft deleting vm fails after "nova resize" vm  https://review.openstack.org/54692006:51
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openstackgerritGhanshyam Mann proposed openstack/nova master: Merge server create for bdm extensions  https://review.openstack.org/58355907:48
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openstackgerritGhanshyam Mann proposed openstack/nova master: Remove stevedore extensions server_create method  https://review.openstack.org/58388208:20
openstackgerritStephen Finucane proposed openstack/os-vif master: add upper_constraints support  https://review.openstack.org/58358208:22
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openstackgerritfupingxie proposed openstack/nova master: Delete allocations when it is re-allocated  https://review.openstack.org/58289908:25
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openstackgerritsahid proposed openstack/nova master: hardware: fix memory check usage for small/large pages  https://review.openstack.org/53216808:31
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openstackgerritVishakha Agarwal proposed openstack/nova master: 'Updated_at' is NULL when show aggregate info  https://review.openstack.org/58027108:40
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openstackgerritLei Zhang proposed openstack/nova master: Add method to get cpu traits  https://review.openstack.org/56031709:17
openstackgerritLei Zhang proposed openstack/nova master: Docs for reporting CPU traits feature  https://review.openstack.org/58290209:17
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openstackgerritChris Dent proposed openstack/nova master: [placement] disallow additional fiels in allocations  https://review.openstack.org/58390709:46
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openstackgerritChris Dent proposed openstack/nova master: [placement] disallow additional fields in allocations  https://review.openstack.org/58390709:46
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openstackgerritZhenyu Zheng proposed openstack/nova master: Add regression test for bug 1781880  https://review.openstack.org/58392710:57
openstackbug 1781880 in OpenStack Compute (nova) "nova service-list for new compute service causes TypeError with servicegroup_driver mc " [Medium,Triaged] https://launchpad.net/bugs/1781880 - Assigned to Zhenyu Zheng (zhengzhenyu)10:57
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openstackgerritLei Zhang proposed openstack/nova master: Add method to get cpu traits  https://review.openstack.org/56031711:03
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openstackgerritZhenyu Zheng proposed openstack/nova master: Add regression test for bug 1781880  https://review.openstack.org/58392711:12
openstackbug 1781880 in OpenStack Compute (nova) "nova service-list for new compute service causes TypeError with servicegroup_driver mc " [Medium,Triaged] https://launchpad.net/bugs/1781880 - Assigned to Zhenyu Zheng (zhengzhenyu)11:12
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openstackgerritMerged openstack/os-vif master: add upper_constraints support  https://review.openstack.org/58358211:41
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openstackgerritZhenyu Zheng proposed openstack/nova master: Add regression test for bug 1781880  https://review.openstack.org/58392711:47
openstackbug 1781880 in OpenStack Compute (nova) "nova service-list for new compute service causes TypeError with servicegroup_driver mc " [Medium,Triaged] https://launchpad.net/bugs/1781880 - Assigned to Zhenyu Zheng (zhengzhenyu)11:47
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openstackgerritZhenyu Zheng proposed openstack/nova master: Fix nova service-list for new compute service causes TypeError  https://review.openstack.org/58393611:50
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openstackgerritdo3meli proposed openstack/nova master: docs: add nova host-evacuate command to evacuate documentation  https://review.openstack.org/57804012:13
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sean-k-mooneymelwitt: FYI https://review.openstack.org/#/c/583319/ should be ready now. i have merged the patch in os-vif so zull should now pass when the gate job runs12:51
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-openstackstatus- NOTICE: logs.openstack.org is offline, causing POST_FAILURE results from Zuul. Cause and resolution timeframe currently unknown.12:57
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efriedmriedem: https://review.openstack.org/#/c/577863/ may be what you're looking for.12:59
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mriedemaye13:02
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tssuryamriedem: are there any known bugs linking "Limiting Placement Allocation Candidates" with "rebuild" ?13:09
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sean-k-mooneymriedem: oh you online. can you take a look at the os-vif release patch when you get a change https://review.openstack.org/#/c/583319/13:10
mriedemtssurya: can you be more specific?13:11
efriedtssurya: What do you mean, targeting specific hosts or just using the limit= qparam?13:11
efriedThe latter should be happening already13:11
tssuryamriedem, efried: targeting specific hosts13:11
mriedemhttps://review.openstack.org/#/c/576693/13:11
mriedemneeds +W13:11
mriedemthat's not rebuild though13:11
tssuryarebuild is reschedule right ? for new images ?13:12
mriedemyes, then you're looking for https://review.openstack.org/#/q/Ie252271ecfd38a0a1c61c26e323cc03869889f0a13:12
efriedtssurya: This one is related (though not quite a match) https://bugs.launchpad.net/nova/+bug/177759113:12
openstackLaunchpad bug 1777591 in OpenStack Compute (nova) "‘limit’ in allocation_candidates where sometimes make force_hosts invalid" [High,In progress] - Assigned to xulei (605423512-j)13:12
sean-k-mooneytssurya: i did not think we allowed you to target a specific host with rebild. we dont allow you to bypass the scudler in anycase even if we do13:12
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mriedemsean-k-mooney: we don't,13:12
mriedembut we run through the scheduler to validate the new image13:12
tssuryaah thanks, looks like that is what I am looking for,13:12
mriedemon the existing instance.host13:12
efriedoh, I didn't realize we had a fix up for that bug mriedem, looking now...13:13
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sean-k-mooneymriedem: in case i request something in the extraspecs that would make it invalid for that host im guessing13:13
mriedems/extraspec/image properties/ yes13:13
mriedemcould be a windows image and you're on a linux host13:14
tssuryawe keep hitting https://github.com/openstack/nova/blob/f7e6d721f586ecbfee08c621f9e10174a4c6b35d/nova/scheduler/host_manager.py#L521 for new images13:14
mriedemwell, not really that, but you get the idea13:14
mriedemor something that violates aggregates13:14
sean-k-mooneymriedem: ya13:14
mriedemtssurya: that's not rebuild then...13:14
mriedemyou can't force_hosts/force_nodes on rebuild13:14
mriedemunless it's coming out of the request spec13:14
mriedemfrom when the instance was originally built13:15
sean-k-mooneymriedem: for that to happen you would have first had to force the host on inital boot though right?13:16
mriedemwe don't call placement on rebuild13:16
tssuryamriedem: we don't ?13:16
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mriedemno, see https://review.openstack.org/#/c/546357/5/nova/scheduler/manager.py13:16
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mriedemfor a rebuild, quantitative aspects like the flavor aren't changing,13:17
mriedemso we run qualitative filters and things that depend on the image13:17
tssuryahmm, checking prod code to see if this change is there13:17
mriedemi guess the api does set force_hosts during rebuild if you're rebuilding with a new image,13:18
mriedemthat's what tells the scheduler to run the filters on that exact host that the instance is already running on13:18
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tssuryaawesome the above fix is not there in our queens13:19
mriedemi thought you guys pulled from stable?13:19
tssuryathat's why rebuild is still going to placement13:19
tssuryamriedem: we do, but we have some version stuff and backports from rocky which we should not have13:19
tssuryaand then it gets tricky13:19
mriedemack13:20
mriedemwell problem solved :)13:20
tssurya(for instance dansmith's placement-request filter)13:20
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tssuryayea, thanks a ton!13:20
efriedmriedem: I'm fixing my nits13:21
openstackgerritEric Fried proposed openstack/nova master: Disable limits if force_hosts or force_nodes is set  https://review.openstack.org/57669313:22
efriedmriedem: ^13:22
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mriedemsean-k-mooney: your os-vif release doesn't seem like it needs to be a minor bump13:24
mriedemit's mostly test and docs changes13:24
sean-k-mooneyi could make it 1.10.1 but made it 1.11.0 because i adde the noop plugin that said its a noop plugin...13:25
mriedemyeah i noted that,13:25
mriedemi guess there is more to that than what i first saw in the commit log13:25
sean-k-mooneydo you want me to make it 1.10.1 instead?13:26
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mriedemno i just +1ed13:26
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sean-k-mooneymriok cool. well the real reason for the noop plugin is to unblock https://review.openstack.org/#/c/565471/13:27
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mriedemefried: isn't https://review.openstack.org/#/c/576693/7..8/nova/tests/unit/scheduler/test_utils.py needed for the assertResourceRequestsEqual call?13:28
sean-k-mooneymriedem: ^ that was ment for you13:28
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mriedemoh i guess probably not,13:28
mriedemassertResourceRequestsEqual is about comparing the request to the flavor right?13:28
mriedemi thought it was weird that they had to set expected.is_limit13:29
mriedemsean-k-mooney: yeah13:29
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sean-k-mooneyim not sure we would want to depend on a z stream release to delete that code13:29
mriedemsean-k-mooney: it's likely not going to happen in stein anyway - that removal from nova13:30
mriedem*rocky13:30
sean-k-mooneyoh ok well in either case its not blocked anymore so it can be done when it makes sense13:31
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openstackgerritMatt Riedemann proposed openstack/nova master: Implement migrate_instance_start method for neutron  https://review.openstack.org/55633413:34
openstackgerritMatt Riedemann proposed openstack/nova master: Add VIFMigrateData object for live migration  https://review.openstack.org/51542313:34
openstackgerritMatt Riedemann proposed openstack/nova master: Add VIFMigrateData.get_dest_vif  https://review.openstack.org/56693113:34
openstackgerritMatt Riedemann proposed openstack/nova master: libvirt: factor out pre_live_migration plug_vifs call  https://review.openstack.org/56693213:34
openstackgerritMatt Riedemann proposed openstack/nova master: libvirt: use dest host port bindings during pre_live_migration  https://review.openstack.org/56693313:34
openstackgerritMatt Riedemann proposed openstack/nova master: libvirt: use dest host vif migrate details for live migration  https://review.openstack.org/55137013:34
openstackgerritMatt Riedemann proposed openstack/nova master: Annotate flows and handle PortBindingDeletionFailed in ComputeManager  https://review.openstack.org/55137113:34
openstackgerritMatt Riedemann proposed openstack/nova master: Port binding based on events during live migration  https://review.openstack.org/43487013:34
openstackgerritMatt Riedemann proposed openstack/nova master: conductor: use port binding extended API in during live migrate  https://review.openstack.org/52253713:34
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-openstackstatus- NOTICE: logs.openstack.org is back on-line. Changes with "POST_FAILURE" job results should be rechecked.13:40
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efriedmriedem: I noodled with it a bit and came up with something that I think is a little cleaner and more explicit.13:57
openstackgerritEric Fried proposed openstack/nova master: Disable limits if force_hosts or force_nodes is set  https://review.openstack.org/57669313:57
efriedmriedem: ^13:57
efriedaaaand I'll stop voting on it.13:58
mriedemefried: so i guess it was needed for assertResourceRequestsEqual yeah?13:59
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efriedmriedem: No, it wasn't before, but it is now.14:04
openstackgerritMatt Riedemann proposed openstack/nova master: Disable limits if force_hosts or force_nodes is set  https://review.openstack.org/57669314:05
alex_xumriedem: efried this patch sounds pretty close https://review.openstack.org/#/c/560317/24, appreciate you can help on it14:05
mriedemyeah i looked at assertResourceRequestsEqual and see it's checking _limit14:05
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efriedmriedem: But it wasn't checking is_limit/_limit_candidates14:06
mriedemefried: yup i noticed later14:07
efriedmriedem: We good with this now?14:07
mriedem+214:07
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mriedemalex_xu: yup i'd also like kashyap to be ok with the extra cpu mode flags14:07
efriedmriedem: Should I approve it or hold off since I mucked with it significantly?14:07
mriedemalex_xu: hmm, has anyone looked into the powerkvm ci result failures on that?14:07
* kashyap blinks and opens "that" tab14:07
mriedemJul 19 11:35:55.551312 devstack-xenial-ppc64-284262 nova-compute[24588]: ERROR nova.compute.manager libvirtError: internal error: Unknown CPU model ppc64le14:08
mriedemmmedvede: ^14:08
kashyapmriedem: Is there a full log for it?14:09
mriedemhttps://dal05.objectstorage.softlayer.net/v1/AUTH_3d8e6ecb-f597-448c-8ec2-164e9f710dd6/pkvmci/nova/17/560317/24/check/tempest-dsvm-full-xenial/a80ccf4/screen-n-cpu.txt.gz14:09
kashyapThat's fast; thanks14:09
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kashyapmriedem: Two things seem very off there:14:19
kashyapFirst, the binary name is: 'qemu-system-ppc64' not: 'qemu-system-ppc64le' for both 'ppc64' and 'ppc64le'.14:20
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kashyapSecond, talking to a colleague who does PPC stuff, he says:14:20
kashyap    For Power8 guests, <cpu mode='host-model'><model>power8</model></cpu>; for Power9 guests, s/8/9/.14:20
kashyapSo the CPU model 'ppc64le' doesn't make sense at all.14:21
mriedemthat's not the model in this config14:21
mriedemcpu_model is None14:21
mriedemcpu_mode='none'14:21
mriedemvirt_type='kvm'14:21
mriedemarch is ppc64le14:21
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kashyapAh, I was looking at the capabilities; that said, but they aren't using CPU _mode_ there in the guest XML14:23
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kashyapNo, the mode is 'none'; /me goes back to the logs14:25
kashyapActually, Nova didn't even get to generating the guest XML there.14:26
kashyapBecause, it failed right before, when the baselineCPU() API is called with 'ppc64le' and libvirt complained.14:27
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mriedemyup14:30
openstackgerritEric Fried proposed openstack/nova master: Docs for reporting CPU traits feature  https://review.openstack.org/58290214:30
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openstackgerritdo3meli proposed openstack/nova master: docs: add nova host-evacuate command to evacuate documentation  https://review.openstack.org/57804014:39
alex_xukashyap: so for the power, they are running guest with a different arch with host?14:40
alex_xumriedem: sorry, miss the powerkvm ci14:40
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* kashyap back in a min; finishing up a comment in that review14:41
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kashyapalex_xu: Just added a comment in the review, based on a further chat with a libvirt dev who sometimes works with Power guests.14:42
kashyap(On PS:24)14:42
alex_xukashyap: thanks a lot14:42
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mriedemhttps://github.com/openstack/nova/commit/2b7e2e8c1479fd2931ad6d99a9c1865976e44c2115:01
mriedemold school15:01
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kashyapmriedem: There are more gems in the Nova source: look for commit messages: "start of day" and "end of day"15:04
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mriedemi was just chasing a specific comment in the libvirt driver for it's origin15:04
mriedem*its15:04
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lei-zh1Hi mriedem kashyap, I just reply your comments, to see if I understand the case correctly15:06
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openstackgerritChen proposed openstack/python-novaclient master: Fix inconsistency  https://review.openstack.org/57277015:16
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kashyaplei-zh1: I'm on a call, will check the review once done.15:21
lei-zh1sure, no hurry15:22
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openstackgerritStephen Finucane proposed openstack/nova master: tests: Validate huge pages  https://review.openstack.org/39965315:27
openstackgerritStephen Finucane proposed openstack/nova master: libvirt: create functional test base class  https://review.openstack.org/40705515:27
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openstackgerritMatt Riedemann proposed openstack/nova master: Fix accumulated nits from port binding for live migration series  https://review.openstack.org/58399415:34
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mriedemlei-zh1: "From the conf Matt pasted, with cpu_mode not specified"15:38
mriedemcpu_mode *is* specificed15:38
mriedem*specified15:38
mriedembut with value "none"15:38
mriedemwhich is not equal to None15:38
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mriedemlei-zh1: my understanding is libvirt devs are recommending that the powerkvm ci should configure nova to use cpu_mode='host-model' with cpu_model='power8'15:40
mriedemwhich isn't something you can control15:40
mriedemand why i was trying to get a hold of mmedvede15:40
lei-zh1mriedem, ok, I got it15:41
mriedemwe can see that the host model in the capabilities is <model>POWER8</model>15:41
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lei-zh1but I still need to handle the conf you mentioned, suppose it's a valid case, I should make a guess and set the model to power8, right?15:45
mriedemi mean, we could hack something in here like, if cpu_mode='none' and arch == ppc64le, use cpu_mode='host-model' and cpu_model='power8' but it would be blatantly ignoring what's in nova.conf15:45
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mriedemlei-zh1: i left a couple of comments15:48
mriedemyou might just need to change 2 things:15:48
mriedemif cpu.mode is None or cpu.mode == 'none'15:48
mriedem2. if arch == ppc64le: mode = 'power8'15:48
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mriedemefried: i think https://review.openstack.org/#/c/564440/ was originally part of https://review.openstack.org/#/c/564452/ and then split out15:50
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efriedmriedem: It was originally like really early in the series and then moved up, but I don't think it was moved far enough to make dansmith happy.15:51
mriedem> This is now at the end of the series. I've kept it separate from the  "populate the thing" patch but that's to keep this readable. I can  combine them if you don't mind the larger diff15:51
efriedmriedem: His original complaint - that we have dead conf options that say they do a thing they don't do - would still apply.15:51
mriedemthat's an old comment from stephenfin now too15:51
efriedmriedem: Yeah, I saw that, but it's not actually at the end of the series.15:52
mriedemright15:52
efriedmriedem: Rule of thumb, I would think, is that the conf options ought to be in the same patch as the reno315:52
efrieds/3/./15:52
stephenfinefried: I can squash it with the following patch but https://review.openstack.org/#/c/564441/ is already quite beefy15:52
mriedemso,15:53
stephenfinSorry, https://review.openstack.org/#/c/56445215:53
mriedemthe other thing we can do, and we've done before,15:53
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mriedemis we don't approve the bottom thing until we've got +2s lined up on the thing to use it15:53
efriedyeah, that would be fine by me.15:53
mriedemlet's WIP the bottom thing then15:53
mriedemdone15:54
mriedemi was just pulling this up coincidentally15:54
efriedI mean, I really don't feel it matters if we have a situation like this where conf options exist but don't work for a couple commits on the master branch during active development.15:54
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efriedAs long as we make sure we don't hit a release boundary with it.15:54
mriedemright15:54
mriedemand with 1 week to FF, it's risky15:54
mriedemi'll review the rest of the series now15:55
mriedembeen meaning to anyway15:55
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lei-zh1mriedem, please see my comments in the patch15:56
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mriedemgibi: i threw an idea in https://review.openstack.org/#/c/583347/ as an alternative for unsetting the spec_obj.instance_uuid while filtering hosts to get alternates, see what you think16:02
mriedemeither is a hack, but the alternative i just said might be a less impactful hack to any out of tree filters that rely on spec_obj.instance_uuid16:02
gibimriedem: those filters that  rely on spec_obj.instance_uuid has the same issue as the anti-affinity one for multicreate alternates, that spec_obj.instance_uuid is actually invalid for the alternate scheduling. So I think the current patch fixes their issue as well16:05
mriedemgibi: well, anything will explode in that path if it tries to access an unset spec_obj.instance_uuid16:06
mriedemsince we don't lazy-load that field in the RequestSpec object16:06
mriedemi agree that filters shouldn't rely on that field *because* of multi-create16:06
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mriedemalternatively - to the alternative - we could temporarily set a sentinel uuid16:07
mriedemwhich will be something that's never in the host_state.instances16:07
gibimriedem: ahh you are corret the current change  doesn't make out of tree filters automatically better. Then you suggestion is as good as the current patch for me16:07
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mriedemif you have out of tree filters then all bets are off anyway, but it is admittedly weird to have a request spec w/o an instance_uuid field set16:08
gibithe sentinel way could work and I agree that it is nicer than the unset field we just needs to adjust some logging not to log the sentinel as that is misleading16:11
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mriedemmelwitt: appears we have a test that needs to be skipped for lvm http://logs.openstack.org/70/434870/37/check/nova-lvm/a7cce3d/logs/screen-n-cpu.txt.gz?level=TRACE#_Jul_19_14_40_50_48075916:19
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openstackgerritBalazs Gibizer proposed openstack/nova master: Use placement 1.28 in scheduler report client  https://review.openstack.org/58366716:22
openstackgerritMatt Riedemann proposed openstack/nova master: Skip test_resize_server_revert_with_volume_attached in nova-lvm  https://review.openstack.org/58401816:22
mriedemmelwitt et al ^16:22
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mriedemstephenfin: a couple of things in here https://review.openstack.org/#/c/564441/16:43
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stephenfinmriedem: looking16:47
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stephenfinmriedem: Comments left on all those. Will address once I learn what silly things I've done in the other patches that need fixing :)16:54
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mriedemi see your comments and raise you 216:57
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mriedemi think i answered one of my own questions16:59
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openstackgerritGraham Hayes proposed openstack/nova master: Do not install zVMCloudConnector in poy36  https://review.openstack.org/58403117:17
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openstackgerritArtom Lifshitz proposed openstack/nova master: DNM: extra logging for 1775947  https://review.openstack.org/58403217:28
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efriedmriedem: Wherezat bug / pull request y'all opened yesterday for the zvm lib supporting py36?17:38
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efriedmriedem: nm, found it.17:40
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openstackgerritLei Zhang proposed openstack/nova master: Add method to get cpu traits  https://review.openstack.org/56031718:08
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mriedemstub_out is failing me and i don't know why18:22
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openstackgerritMatt Riedemann proposed openstack/nova master: Do not install zVMCloudConnector in py36  https://review.openstack.org/58403118:25
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mriedemoh wow, well, figured it out18:29
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efriedis mugsie Graham Hayes? Never knew that guy had a real name.18:30
mriedemyup18:30
mriedemi've actually *seen* him in person18:30
mriedembelieve it or not18:30
efriedOh, yeah, I've seen him any number of times. Just didn't realize he had a name.18:31
mriedem"that dns guy"18:31
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efriedBeen trying to get the mugsie/penick cage match going.18:31
mriedembattle royale18:32
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efriedRemind me what are the rules for what releases a conductor and its computes can be at?18:43
mriedemcomputes n-118:43
mriedemthe control plane can tolerate n-1 computes for rolling upgrades18:44
efriedand GET /allocation_candidates happens on... the controller?18:45
mriedemyeah, scheduler18:45
mriedemcontroller = api, conductor, scheduler18:45
efriedTrying to figure out why this allocation_request_version thing exists18:45
efriedSounds like its purpose is to allow us to "cheat" and use a higher microversion on the n-1 compute than that codebase actually knows about.18:46
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mriedemcorrect18:47
mriedemwell, not the compute,18:47
mriedemthe cell conductor18:47
efriedum18:47
efriedbecause the cell conductor can be n-1 as well?18:47
mriedemapi->superconductor->scheduler (get allocation candidates and get alternate hosts from those allocatoin requests at the given microversion used in the scheduler)->pass down to compute to build; fails and reschedule to cell conductor which uses the allocation request, created in the scheduler, to claim resources against the alternate host in placement18:48
efriedAnd the cell conductor can be downlevel from the superconductor?18:48
mriedemlong-term i think we want to be able to do rolling upgrades of the cells themselves so yes cell conductor could be n-18:48
mriedem*n-118:48
mriedemit's been a long time since i've talked about rolling upgrades for cells with dansmith18:49
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mriedemgibi: good news - the delattr stuff for getting alternate hosts was a bugaboo so i'm removing all that code and added a wrinkle to the functional test to assert there are no alternate hosts when this bug is fixed18:49
openstackgerritMatt Riedemann proposed openstack/nova master: Add regression test for bug 1781710  https://review.openstack.org/58333918:50
openstackbug 1781710 in OpenStack Compute (nova) "ServersOnMultiNodesTest.test_create_server_with_scheduler_hint_group_anti_affinity failing with "Servers are on the same host"" [High,Fix released] https://launchpad.net/bugs/1781710 - Assigned to Matt Riedemann (mriedem)18:50
openstackgerritMatt Riedemann proposed openstack/nova master: Update RequestSpec.instance_uuid during scheduling  https://review.openstack.org/58334718:50
mriedemmelwitt: jaypipes: ^ should be better now18:50
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mriedemtl;dr the change is now just make sure and set the in-context correct instance_uuid on the RequestSpec before calling the filters18:51
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efriedBecause of da new rulez, if the conductor is running N, the version of placement that all of its cell conductors and computes will be dealing with is at least the minumum for N, not the minimum for N-1, right?18:54
efriedguess the rules aren't new18:54
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mriedemnew rules being we don't do version negotiation for placement?18:57
mriedemthat doesn't apply if the code is on an N-1 service and it thinks the minimum required version is whatever it was for N-118:57
mriedemi mean, that's kind of the point of why we send the allocation candidate request version down to the cell,18:57
mriedembecause if it's downlevel, and the request body format changed, we need to tell the cell exactly what version to make that request with that particular body18:58
mriedemit's like gd time travel18:58
mriedemefried: do you want to continue talking about this or want me to review https://review.openstack.org/#/c/556669/ ?18:58
mriedembecause i need to get in the zone18:58
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efriedmriedem: zone away. I'm going to write a patch to clean this shit up, based on now being able to assume we're talking to a queens minimum.18:59
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jaypipesmriedem: cool, will look shortly.19:08
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openstackgerritChris Dent proposed openstack/nova master: WIP POC: Use os-resource-classes in placement  https://review.openstack.org/58408419:54
openstackgerritChris Dent proposed openstack/nova master: [placement] Move resource_class_cache into placement hierarchy  https://review.openstack.org/58408519:54
openstackgerritChris Dent proposed openstack/nova master: [placement] ensure_rc_cache only at start of process  https://review.openstack.org/58408619:54
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openstackgerritMerged openstack/nova master: Implement migrate_instance_start method for neutron  https://review.openstack.org/55633420:20
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mriedemkashyap: what does this mean? " libvirtError: unsupported configuration: Attribute mode is only allowed for guest CPU"20:24
mriedemhttps://www.redhat.com/archives/libvir-list/2012-January/msg00232.html20:26
openstackgerritArtom Lifshitz proposed openstack/nova master: DNM: extra logging for 1775947  https://review.openstack.org/58403220:26
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cfriesen_mriedem:  looks like its if you try to parse XML with a <host><cpu> section that then tries to specify a "mode".  That's only allowed for XML describing guest cpus.20:43
cfriesen_https://github.com/libvirt/libvirt/blob/master/src/conf/cpu_conf.c#L31720:44
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melwittnova meeting in 9 minutes20:51
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openstackgerritEric Fried proposed openstack/nova master: Check provider generation and retry on conflict  https://review.openstack.org/55666920:55
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openstackgerritTakashi NATSUME proposed openstack/nova master: Remove mox in test_compute_api.py (4)  https://review.openstack.org/56846221:31
openstackgerritTakashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (3)  https://review.openstack.org/57410421:31
openstackgerritTakashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (4)  https://review.openstack.org/57410621:32
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mriedemgonna rebase and address comments in the handling a down cell series21:46
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melwitttonyb: https://review.openstack.org/#/c/560317/ is failing powerkvm CI and we need help figuring out why21:49
tonybmelwitt: okay I'll look at it21:49
melwittthe powerkvm CI owner is on PTO this week, we found out that's why we didn't get response to pings21:50
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openstackgerritTakashi NATSUME proposed openstack/nova master: Remove mox in virt/test_block_device.py  https://review.openstack.org/56615322:05
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melwittmriedem: os-traits release proposed https://review.openstack.org/58413022:07
melwittfyi22:07
openstackgerritTakashi NATSUME proposed openstack/nova-specs master: Create specs directory for Stein  https://review.openstack.org/57360222:08
openstackgerritdo3meli proposed openstack/nova master: docs: add nova host-evacuate command to evacuate documentation  https://review.openstack.org/57804022:12
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openstackgerritdo3meli proposed openstack/nova master: docs: add nova host-evacuate command to evacuate documentation  https://review.openstack.org/57804022:15
mriedemtonyb: well, it was originally failing because the CI is configured with cpu_mode='none' and so i believe the model put into the xml was ppc64le, so that was changed to mode=host-model and model=power8 (per someone from libvirt/qemu that knows about this),22:15
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mriedembut now it fails on something else, which cfriesen_ said might be:22:16
mriedem(3:44:06 PM) cfriesen_: mriedem:  looks like its if you try to parse XML with a <host><cpu> section that then tries to specify a "mode".  That's only allowed for XML describing guest cpus.22:16
mriedem(3:45:04 PM) cfriesen_: https://github.com/libvirt/libvirt/blob/master/src/conf/cpu_conf.c#L31722:16
mriedemtonyb: i was suggesting the powerkvm ci could just set cpu_mode=host-model and cpu_model=power8, but that's basically what the code is now doing as a workaround22:16
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cfriesen_mriedem: if you want to specify cpu_model=power8, wouldn't you want a cpu_mode of custom?22:26
mriedemif a tree falls in the woods22:28
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mriedemcfriesen_: yeah that makes more sense22:28
cfriesen_mriedem: hmm...https://bugzilla.redhat.com/show_bug.cgi?id=1237025 seems to think mode of "host-model" and "model" of "power8" is valid.  weird.22:29
openstackbugzilla.redhat.com bug 1237025 in libvirt "Guest can not start with different combinations of <cpu> mode and <model>" [Medium,Closed: notabug] - Assigned to abologna22:29
cfriesen_wonder if this is a bizarre powerpc-ism22:29
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mriedemjlk: said s390x causes all the problems,22:30
mriedembut power is right up there22:30
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cfriesen_mriedem: https://libvirt.org/formatdomain.html#elementsCPU under the host-model section documents PowerPC weirdness.22:32
mriedem"Specifying           CPU model is not supported either"22:33
* jlk sees highlight "Oooh I wonder what that is!" sees "s390x", runs away22:33
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mriedemSince 1.2.11 PowerISA           allows processors to run VMs in binary compatibility mode supporting           an older version of ISA.  Libvirt on PowerPC architecture uses the           host-model to signify a guest mode CPU running in           binary compatibility mode22:34
cfriesen_yeah, that's the interesting bit22:34
mriedemii  libvirt-bin                           4.0.0-1ubuntu8.3~cloud022:34
jlkof course Power would override that to means omething else22:34
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cfriesen_I don't get why they wouldn't just use a mode of "custom" with a model of "power8" (or whatever) instead.22:36
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mriedemcould try that22:36
mriedemkind of throwing things at the wall at this point until something works22:36
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openstackgerritEric Fried proposed openstack/nova master: Check provider generation and retry on conflict  https://review.openstack.org/55666922:43
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tonybmriedem: Yeah setting power8 is wrong long term but shoudl be fine for now (but I wouldn't merge it that way)22:52
tonybmriedem: How do I debug placement failures? or at least see what allocation_candidates returned22:53
tonybOh nm /me finds the 'renew until 27/07/18 08:05:3322:54
tonyb' in n-cpu22:54
mriedemso you don't need help debugging placement failures now?22:54
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tonybmriedem: No I don't think so for this thing but in gernal it'd be good to know how to do it22:55
mriedemn-sch logs will tell you for a given request which hosts are being filtered22:55
mriedemi don't think we log the allocation_candidates response since it could be huge22:55
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tonybmriedem: Okay what I'm seeing 'Got no allocation candidates from the Placement API' so I think that measn I the filters don't run which is why I'm not seeing the output I'm expecting in select_destindations?22:57
openstackgerritMerged openstack/python-novaclient master: Fix inconsistency  https://review.openstack.org/57277022:58
mriedemcorrect22:59
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mriedemtonyb: what's the scenario? normal server create? or a rebuild, or force_hosts?22:59
mriedemcould just be there are no hosts with available capacity for the flavor being used22:59
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tonybmriedem: Lots of scenarios: tempest.api.compute.admin.test_auto_allocate_network.AutoAllocateNetworkTest is the one I picked at random23:01
tonybmriedem: I'm off reading the libvirt code for baselineCPU as that's certainly part of the problem23:02
mriedemtonyb: so some tripleo ci job shit the bed or what?23:02
tonybmriedem: oooo No I'm looking at the pkvm thing from thismornings meeting23:03
mriedemoh, don't worry about tempest in that case,23:03
mriedemthe n-cpu logs just show that the host baselineCPU stuff is f'ed23:03
tonybmriedem: Yeah I finally got there, and hence readin the libvirt code ;P23:04
mriedemok cool. point taken though - if people though debugging scheduler failures were hard before placement, it will be worse, because the filtering for some things is done in sql now23:04
mriedem*thought23:04
tonybmriedem: Yup.  I agree.23:05
mriedemefried: haven't we mused about some kind of "tell me why this request doesn't fit" type tool?23:05
efriedmriedem: We have. It would be insanely complicated to write, which is why we haven't gotten beyond musing.23:06
jlk:923:06
mriedemjlk: i thought you left23:06
jlkI remember spending a lot of time debugging selection, when introducing more complex rules23:06
tonybmriedem: if a live system can't use psc-placement and some gray-matter to work (well guess) why?23:07
jlkmriedem: I did, but I'm still dealing with libvirt and KVM and stuff.23:07
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efriedmriedem: Insanely complicated in the sense that we would have to rewrite pretty much every line of logic in the GET /a_c flow, splitting monolithic SQL statements into smaller components, etc.23:07
jlkI'm ... "borrowing" some things from Nova23:07
cfriesen_could you split it up into the subqueries at least, to see which ones are ruling out significant numbers of hosts?23:07
mriedemjlk: uh, for k8s?23:07
jlkno23:07
jlkan in-house bare metal cloud I'm teaching how to do VMs23:07
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jlkk8s will run on a VM on this, instead of on bare metal, but we have a bunch of other bare metal consumers that would be better serviced by VMs, even if the VM takes up the whole machine.23:08
mriedemi know you can enable debugging at the sql level, but that would suck23:08
cfriesen_efried: I mean when the query comes back with no hosts you could re-run the various sub-queries23:09
openstackgerritEric Fried proposed openstack/nova master: Check provider generation and retry on conflict  https://review.openstack.org/55666923:09
efriedcfriesen_: The sub-queries that would matter - at least for resource availability - are pretty well mashed together in monolithic sql statements at the moment.23:11
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cfriesen_if we ever put hugepages and cpu pinning and pci devices and provider networks in placement I think we'd probably need some sort of useful logging on failure to find a candidate.23:12
cfriesen_when you get into stuff like "you wanted a pci device attached to this network, but there's not enough 1G hugepages on any numa node associated with those PCI devices"23:13
efriedSome of the logic splitup for nrp and granular will actually help with that, much as it got hated on during review.23:13
efriedbut for any serious debugging, other than sql dumps as mriedem says, it's gonna need a crap ton of refactoring.23:14
efriedI'm Audi 2000.  See y'all tomorrow.23:14
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openstackgerritMatt Riedemann proposed openstack/nova master: Add queued_for_delete field to InstanceMapping object  https://review.openstack.org/56679523:19
openstackgerritMatt Riedemann proposed openstack/nova master: Online migration tool for populating queued-for-delete  https://review.openstack.org/58253623:19
openstackgerritMatt Riedemann proposed openstack/nova master: Update queued-for-delete from the ComputeAPI during deletion/restoration  https://review.openstack.org/56681323:19
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openstackgerritMatt Riedemann proposed openstack/nova master: [POC] Graceful handling of nova-list when a cell is down  https://review.openstack.org/56778523:19
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openstackgerritMatt Riedemann proposed openstack/nova master: Online migration tool for populating queued-for-delete  https://review.openstack.org/58253623:23
openstackgerritMatt Riedemann proposed openstack/nova master: Update queued-for-delete from the ComputeAPI during deletion/restoration  https://review.openstack.org/56681323:23
openstackgerritMatt Riedemann proposed openstack/nova master: [POC] Graceful handling of nova-list when a cell is down  https://review.openstack.org/56778523:23
mriedemmelwitt: +2s on those first 3 ^23:23
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openstackgerritTakashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (5)  https://review.openstack.org/57411023:24
openstackgerritTakashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (6)  https://review.openstack.org/57411323:25
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openstackgerritTakashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (7)  https://review.openstack.org/57497423:43
oomichitakashin: hi, can you check https://review.openstack.org/#/c/578040/ again ?23:43
openstackgerritTakashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (8)  https://review.openstack.org/57531123:43
takashinoomichi: okay. I will review it again.23:44
oomichithanks :)23:44
openstackgerritMatt Riedemann proposed openstack/nova master: Use consumer generation in _heal_allocations_for_instance  https://review.openstack.org/57790523:44
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