Friday, 2015-09-18

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openstackgerritRichard Jones proposed openstack/nova: Allow filtering using unicode characters  https://review.openstack.org/22443100:55
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openstackgerritRichard Jones proposed openstack/python-novaclient: Encode unicode filter arguments for server list  https://review.openstack.org/22442201:46
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openstackgerritMatt Riedemann proposed openstack/nova: libvirt:on snapshot delete, use qemu-img to blockRebase if VM is stopped  https://review.openstack.org/19273602:35
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openstackgerritShuquan Huang proposed openstack/nova: Fix nova configuration options description  https://review.openstack.org/22450003:18
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openstackgerritSamuel Cassiba proposed openstack/nova-specs: Add support for FreeBSD as a compute node  https://review.openstack.org/22499804:29
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openstackgerritTakashi NATSUME proposed openstack/nova: Fix cinder volume stuck in swap_volume  https://review.openstack.org/20738505:33
openstackgerritTakashi NATSUME proposed openstack/nova: Fix cinder volume stuck in swap_volume  https://review.openstack.org/20738505:36
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ndHow to unconfigure Openstack services from a particular node? Suppose I am expanding my Openstack setup and hence deployed new powerful nodes to run some Openstack services, how can I unconfigure these services from the previous less powerful node?06:13
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ndbcos I believe that there would be entries in database as well as message broker - so it wont be just uninstall packages, stop services, cleanup. There has to be more - but what is it? Can anyone help please?06:14
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openstackgerritOpenStack Proposal Bot proposed openstack/nova: Imported Translations from Zanata  https://review.openstack.org/22502606:27
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zigoWhen building the Liberty b3 package of Nova, I get the unit test suite dying... https://liberty-jessie.pkgs.mirantis.com/job/nova/17/console06:48
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zigoThis happens only when building in Jenkins.06:48
zigoHas anyone see that?06:49
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bauzaszigo: looking08:07
bauzas(good morning Nova btw.)08:07
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zigobauzas: I've increased the max-open-file in my jenkins, and I'm now attempting to rebuild again.08:08
zigoLet's see how it goes.08:08
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bauzaszigo: yeah, not related to Nova IMHO08:09
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zigobauzas: I'm sure it's not as well, I have the issue with 2 other projects, though only when running Py3 tests.08:10
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openstackgerritAlvaro Lopez Garcia proposed openstack/nova: libvirt: make live_migration_uri flag dependent on virt_type  https://review.openstack.org/17578008:30
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openstackgerritJianghua Wang proposed openstack/nova: Support vGPU to Xen  https://review.openstack.org/22342608:32
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openstackgerritfelix23ma proposed openstack/nova: Fix bug: volume booted instance rebuild doesn't change operating system in root device  https://review.openstack.org/22388708:40
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openstackgerritfelix23ma proposed openstack/nova: Bug fix: volume booted instance rebuild doesn't change operating system in root device  https://review.openstack.org/22388708:43
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johnthetubaguynd I think you will get better answers to your usage questions on #openstack08:43
johnthetubaguynd there are ways of deleting a service, APIs or CLIs in most of the services08:44
johnthetubaguynd but many times thats a totally optional step, assuming no resources are owned by that old node (for example VMs running on nova-compute could be an issue)08:45
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bauwserjohnthetubaguy: morning08:46
bauwserjohnthetubaguy: if I want to add another proposal for a summit session, I guess I should continue to use gdocs and add it to the etherpad too ?08:46
johnthetubaguybauwser: good morning dear mario character08:46
johnthetubaguybauwser: oh, I don't think you need to do both08:47
bauwserjohnthetubaguy: ok, what is the master then ? :)08:47
bauwserjohnthetubaguy: gdocs?08:47
bauwserthe slave being etherpad ?08:47
johnthetubaguybauwser: yeah, gdocs is the master copy08:47
johnthetubaguyyeah08:47
bauwserok, I guess some peon should just typey typey for syncing ?08:47
johnthetubaguyyep08:48
johnthetubaguyI cut and pastey the current stuff in there08:48
bauwserok cool08:48
PaulMurrayMorning johnthetubaguy bauwser08:48
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bauwserPaulMurray: morning08:49
nd_johnthetubaguy: thanks for responding. I had posted this on #openstack also but did not get any response there08:49
PaulMurrayjohnthetubaguy, I put something on the sessions for live migration - with CI and everything else it seems a lot for one sessions08:49
PaulMurraybut I thought I woud leave it and let you all decide what to do about it08:49
johnthetubaguynd_: oh dear, yeah, I guess its quite empty this time of day08:49
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PaulMurrayjohnthetubaguy, do you want me to list everything I can think of on it or just leave it as a kind of marker for now?08:50
johnthetubaguyPaulMurray: good questions, I think my main concern is what do we want out of the discussion08:50
nd_johnthetubaguy: no issues. will try again later then. any idea when would be a good time (after how many hours from now) - i mean ppl would be there to respond. sorry am fairly new here so asking.08:51
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johnthetubaguynd_: no worries, there are some channels that peak in activity at certain times of the day, I suspect thats not right now for many08:52
PaulMurrayjohnthetubaguy, I think I've done that - with jogo moving on we are trying to sort out what to do about CI for live migration08:52
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PaulMurrayjohnthetubaguy, also various other things we worry about08:52
johnthetubaguyPaulMurray: I think there are some folks working on that08:52
PaulMurrayjohnthetubaguy, yes, I think they are HP unless there are others I don't know about08:52
johnthetubaguyPaulMurray: but thats really just a case of pushing on the current errors (I think there is a recent ML thread on that)08:52
PaulMurraydo you know who08:52
johnthetubaguyI don't remember now, let me quickly check08:53
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johnthetubaguyPaulMurray: so the thing is, I am not sure it needs in person discussion, agreed it needs folks to push on it, and it needs discussion, but I could be looking at this all wrong08:54
openstackgerritPavel Kholkin proposed openstack/nova: WIP: Use legacy engineFacade from oslo_db.enginefacade  https://review.openstack.org/22131008:54
johnthetubaguyPaulMurray: http://lists.openstack.org/pipermail/openstack-dev/2015-September/073965.html08:55
bauwserPaulMurray: I've been heard that tdurakov was interested in helping08:55
johnthetubaguyyeah, thats right08:55
bauwserheh, jinxed by johnthetubaguy08:55
johnthetubaguyI think joining forces there would be good08:55
johnthetubaguyPaulMurray: so let me turn this upside down, what can we do to unblock what you want to push forward with?08:56
bauwserPaulMurray: I don't know his TZ tho08:56
PaulMurrayjohnthetubaguy, yes, just found that too - I'll catch up with them, a little further back there was a guy from HP looking to do something too08:56
johnthetubaguycool, more folks = good news for these test failures08:56
bauwserPaulMurray: there are a couple of stuff also coming along with that - like some claims issues and scheduler too08:56
PaulMurrayjohnthetubaguy, there are a couple of specs that get tied up with tasks API that don't need to be immediately. Would like to be able to08:57
bauwserPaulMurray: so yeah I guess it would be nice to see what are the gaps08:57
bauwserPaulMurray: hah08:57
johnthetubaguyPaulMurray: ah, the cancel for when the memory can't sync?08:57
PaulMurrayjohnthetubaguy, cancel a migration for example - that kind of thing08:57
johnthetubaguylol, yeah08:57
bauwserPaulMurray: https://review.openstack.org/#/c/221280/08:57
johnthetubaguyPaulMurray: so the thing is, I think most folks think they are all good ideas08:58
bauwserI was just about asking johnthetubaguy that I was writing a new summit proposal and guess which one then08:58
PaulMurraybauwser, yes, good - would like not to wait for it :)08:58
johnthetubaguyPaulMurray: so I guess what we need is to tie the ideas into an action plan?08:58
PaulMurrayjohnthetubaguy, exactly08:58
PaulMurrayjohnthetubaguy, that's the gist of what I put on my session proposal08:59
PaulMurrayjohnthetubaguy, I have to go to a meeting08:59
johnthetubaguyPaulMurray: no worries, lets catch up later08:59
openstackgerritPavel Kholkin proposed openstack/nova: WIP: use oslo_db.enginefacade  https://review.openstack.org/22506509:00
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johnthetubaguyPaulMurray: I am thinking we can get this started pre-summit, an ML post to collect interested folks, get a proposal, and we can discuss that in the Nova IRC meeting, if that works for folks09:01
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johnthetubaguyPaulMurray: we made robustify evacuate a semi-priority, seems like robustify live-migrate would be something good for this cycle09:02
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bauwserjohnthetubaguy: ndipanov was beginning to work on that during Liberty with the move claims btw.09:07
bauwseroops09:08
bauwserPaulMurray: ^ (rather)09:08
openstackgerritMarkus Zoeller (markus_z) proposed openstack/nova-specs: Create nova-bug-report cmd utility  https://review.openstack.org/20984709:10
ndipanovbauwser, but that did not materialize sadly09:11
bauwserndipanov: yup, I know09:11
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bauwserndipanov: I was just introducing you to PaulMurray who wants to gather stuff around live-mig :)09:11
bauwserhence my oops, I guess johnthetubaguy was aware of your work :)09:12
johnthetubaguyI saw bits of that for sure09:13
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* PaulMurray reading back 09:32
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PaulMurrayjohnthetubaguy, getting started ahead of time is good - I can send out a post and and start pulling the proposal together with the responses - sound ok?09:36
johnthetubaguyPaulMurray: sounds good to me09:36
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PaulMurrayjohnthetubaguy, ok - I'll get on it09:36
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bauwserjohnthetubaguy: given the new deprecation rules I can see on the ML, I wonder if https://review.openstack.org/#/c/194592/1/nova/scheduler/filters/trusted_filter.py,cm is still okay?10:10
bauwserjohnthetubaguy: like saying instead "the filter will be removed in N..."10:10
bauwserinstead of saying "in a later cycle"10:10
johnthetubaguybauwser: I am fine with "in a later cycle"10:10
bauwserokay10:11
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bauwserI'm leaving a TODO then10:11
johnthetubaguywe need to wait until we are happy to remove it, the deprecation rules are just a minimum, as I understand it10:11
bauwserof course, that change should be merging until Mitaka opens10:11
bauwsers/only when10:11
johnthetubaguypersonally, I am quick to deprecate, and slow to remove10:12
bauwserjohnthetubaguy: well, I add a new log, so hello to StringFreeze...10:12
johnthetubaguythats relaxed though now, right?10:13
bauwserthat's adding a new log, I think it wouldn't be cool for the translators nope?10:13
johnthetubaguyit totally is now: https://wiki.openstack.org/wiki/StringFreeze10:13
johnthetubaguyI got the rules changed10:13
johnthetubaguywell, actually restored to what we used to do10:14
bauwseryeah saw that but didn't notice adding logs was okay10:14
johnthetubaguyyep, thats thats the main change10:14
bauwserokay, spinning off a new version10:14
johnthetubaguycools10:14
johnthetubaguymy only (obvious) comment would be describing why in the commit message, but you know all that10:15
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bauwserjohnthetubaguy: yeah, it was a WIP, I'm just writing that down10:18
bauwserjohnthetubaguy: basically because of http://lists.openstack.org/pipermail/openstack-dev/2015-June/067766.html10:18
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johnthetubaguybauwser: just went digging, I think this is the latest draft: https://review.openstack.org/#/c/207467/10:20
johnthetubaguybauwser: basically codifying what we do10:20
bauwserjohnthetubaguy: ack, reading that10:20
bauwserjohnthetubaguy: anyway, we were already following those rules10:21
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johnthetubaguybauwser: yep, thats the point there, I got ML posts mixed up I think10:21
bauwserjohnthetubaguy: I don't want to run for removing it10:21
bauwserjohnthetubaguy: just send a signal that things have to move on10:21
johnthetubaguybauwser: yeah, deprecation is the only signal we have, and I am OK with that10:22
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bauwserjohnthetubaguy: what is a bit worrying me is that this warning will happen every time the filter is called, ie. for each host/query10:23
bauwserjohnthetubaguy: that's not really nice10:23
johnthetubaguybauwser: ah, so thats totally broken10:23
bauwserjohnthetubaguy: so I'd probably do like cells and just notify at startup10:23
johnthetubaguy+110:23
bauwserjohnthetubaguy: yeah, was thinking about that, okay correcting that10:23
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bauwserjohnthetubaguy: sorry to bug you again about that, but do you think that change would require an UpgradeImpact (ie. relnotes updated) ?10:36
bauwserjohnthetubaguy: I can only see removals in the relnotes, not deprecations10:37
bauwseroh nvm, I need to change my googles10:37
bauwsergoggles even10:37
johnthetubaguygood question, we could add that I guess10:37
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bauwseraddding it to https://wiki.openstack.org/wiki/ReleaseNotes/Liberty#Deprecations with a note to remove that if the change doesn't merge10:38
johnthetubaguybauwser: cool, we need to get better at documenting our deprecations, I am kinda counting on the feature classification system, but thats probably not granular enough10:41
openstackgerritSylvain Bauza proposed openstack/nova: Deprecate TrustedFilter  https://review.openstack.org/19459210:42
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openstackgerrithuan proposed openstack/nova: Do not rely on XenAPI to guess device names  https://review.openstack.org/21311211:27
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openstackgerritJiri Suchomel proposed openstack/nova: Get the instance availability zone before creating volume so we can pass actual AZ value to volume API.  https://review.openstack.org/22511912:12
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openstackgerritDavanum Srinivas (dims) proposed openstack/nova: Slightly better translation friendly formatting  https://review.openstack.org/22400912:18
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abhishekkjpipes: hi you around?12:31
abhishekkjaypipes: hi, you around?12:31
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jaypipesabhishekk: yes12:36
abhishekkjaypipes: I came across your ML,  http://lists.openstack.org/pipermail/openstack-dev/2015-July/070564.html12:37
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ankit_agalaski: hi you around?12:37
jaypipesabhishekk: yes.12:37
abhishekkjaypipes: this will also help in solving disk space issue for shared storage servers12:38
abhishekkjaypipes: are you working / any plan to work on this?12:38
jaypipesabhishekk: yes, that was one of the original ideas behind this.12:38
abhishekkjaypipes: https://bugs.launchpad.net/nova/+bug/125232112:38
openstackLaunchpad bug 1252321 in OpenStack Compute (nova) "Nova counts NFS shared storage space on each node" [Medium,Confirmed]12:38
jaypipesabhishekk: yes, I have a team that will be working on this in the Mitaka timeframe. I need to create the blueprint for it, though. Gonna try to get to that shortly...12:39
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jaypipesabhishekk: yeah, that's an old bug that will be solved by this work.12:39
abhishekkjaypipes: thank you for update12:39
jaypipesabhishekk: of course, no problem. hope you can do code reviews on the patches when they are pushed! :)12:40
abhishekkjaypipes: sure, hope we can meet in design summit :)12:40
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abhishekkjaypipes: thank you for your time12:41
jaypipesabhishekk: yup, I'll be there!12:43
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abhishekkjaypipes: great, looking forward to have a word with you :)12:44
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bauwserjaypipes: morning :)12:48
bauwserjaypipes: FYI FYI https://review.openstack.org/#/c/194592/212:48
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leakypipesbauwser: coolio. will try to get to it today. this week has sucked ass with constant meetings... today I finally get a bit of a break from them.12:48
bauwserleakypipes: no worries, I think we should just deprecate it for Liberty12:49
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leakypipesbauwser: k12:51
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tdurakovleakypipes, hi!12:55
leakypipestdurakov: mornin!12:55
tdurakovi've got idea for mitaka,  https://blueprints.launchpad.net/nova/+spec/split-different-live-migration-types12:56
tdurakovleakypipes, what do you think?12:56
* leakypipes looks12:56
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leakypipestdurakov: ooooh, I like it. a lot.12:56
tdurakov :)12:57
leakypipestdurakov: I removed myself as the approver though, since I don't have any rights to do that :)12:57
tdurakovleakypipes, whom i could set as approver?12:57
leakypipestdurakov: you can leave it blank, or put johnthetubaguy12:57
leakypipestdurakov: probably want to write a short spec for this, too. and put it in the backlog...12:58
leakypipestdurakov: with some details of proposed implementation...12:58
tdurakovjohnthetubaguy hi! what do you think about spec for that? https://blueprints.launchpad.net/nova/+spec/split-different-live-migration-types12:58
tdurakovleakypipes, ack:)12:58
johnthetubaguyseems like a good idea12:59
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johnthetubaguyonly need be small12:59
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tdurakovsmall spec, ok12:59
johnthetubaguyits a good way to get agreement on things12:59
leakypipesya12:59
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tdurakovjohnthetubaguy, ok, i'll add you as a reviewer for that13:00
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tdurakovshould i use backlog folder for spec, or just wait for mitaka open?13:00
johnthetubaguytdurakov: no problems, hoping to starting doing some spec reviews once we have RC cut13:00
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johnthetubaguytdurakov: mitaka has been open for specs for a month or two, just go straight there13:00
tdurakovO_o13:01
tdurakovso slow13:01
tdurakov:-D13:01
tdurakovwhen is it closing?13:01
johnthetubaguywe haven't decided, I suspect around mitaka-1 ish13:01
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johnthetubaguybut in my little world of make believe, I would love to get most specs merged before the summit13:02
tdurakovjohnthetubaguy, ok, i'll do my best for it13:02
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johnthetubaguyno worries, earlier is better, generally13:03
bauwsertdurakov: tbc, are you planning to modify only the compute manager and beyond, or also the conductor ?13:04
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tdurakovbauwser, i'd start with compute first13:04
bauwsertdurakov: btw. which TZ are you in ?13:04
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bauwsertdurakov: I'm asking for that because I wonder if you plan to modify the RPC interfaces13:05
tdurakovbauwser, UTC+313:05
bauwserack13:05
bauwserSaratov then :)13:05
tdurakovyep13:05
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tdurakovbauwser, i'd prefer to focus on compute side first, and if it's ok - move refactoring to conductor13:06
bauwsertdurakov: I was unclear13:06
tdurakovah13:06
bauwsertdurakov: are you planning to change the compute RPC API ?13:07
tdurakovyou are talking about compute interaction?13:07
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tdurakovbauwser, i'm not ready to answer this question now:-Š·13:07
bauwsertdurakov: okay, a spec is worth it anyway13:08
tdurakovbauwser, yes13:08
bauwsertdurakov: but you should mention that in the spec13:08
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tdurakovsure13:08
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bauwsertdurakov: MHO is that you don't need to modify the RPC API13:09
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tdurakovbauwser, ack:)13:09
bauwsertdurakov: I mean, we have an API that provides both cold and live migrations13:10
tdurakovbauwser, right13:10
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bauwsertdurakov: so if you would plan to change the API, that would impact the cold migration too, which seems not to be scoped by your BP13:10
bauwser(speaking of RPC interface eh, not the REST one)13:10
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tdurakovbauwser, heh, i was sure that live and cold migrations are quite separate, and cold-migration is almost same as resize13:11
tdurakovanyway, i'm not going to change cold-migration and resize in this bp/spec13:12
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andrearosaI can't live-migrate a LVM instance, anyone knows if is it supposed to work?13:19
openstackgerritRoman Podoliaka proposed openstack/nova: libvirt: delete the last file link in _supports_direct_io()  https://review.openstack.org/22476413:19
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johnthetubaguytdurakov: you are right, in the code, but we have had plans to unify the REST APIs for those for a while, and the RPC APIs actually13:19
mriedemandrearosa: block migration or not?13:20
andrearosablock migration13:20
mriedemshould work, there is a multi-node gate job that runs live block migration13:21
mriedembut it's not a volume-backed instance...13:21
mriedemandrearosa: is this boot from volume instance? or the instance was attached and then live migration?13:21
andrearosait is not boot from volume13:21
bauwserjohnthetubaguy: oh, wasn't aware of that, any pointers to share ?13:22
openstackgerritRadomir Dopieralski proposed openstack/nova: Handle 404 responses from neutron when polling for floating IPs  https://review.openstack.org/21674613:22
johnthetubaguybauwser: not to hand13:22
bauwserjohnthetubaguy: (speaking of unifying the REST API resources)13:22
bauwserjohnthetubaguy: okay, good to know anyway13:22
johnthetubaguyit was a while back13:22
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mriedemandrearosa: so you attached an lvm volume and then tried doing a block migration?13:22
bauwserjohnthetubaguy: okay, meaning having the same resource for a migration but with different arguments ?13:23
mriedemandrearosa: are there errors in the n-cpu log?13:23
johnthetubaguyI have a feeling block migrate fails in libvirt when you have volumes attached, there is a check for that, or something13:23
johnthetubaguybauwser: yep, migrate --live13:23
bauwserjohnthetubaguy: I see13:24
johnthetubaguybauwser: it was maybe a bit miss guided though, thinking about it more13:24
johnthetubaguybauwser: what I really want is to use live-migrate during resize to minimise the downtime, although thats likely just to make it more unreliable13:25
andrearosamriedem: sorry I think I didin't explain correctly. I have configured images_type=lvm then I boot an instance which is active with the ephemeral using the volume_group, at this poin tif I try to migrate it fails becasu it can't access the storage file13:25
bauwserjohnthetubaguy: yeah we could probably discuss that during the summit13:25
johnthetubaguybauwser: meh, we can if someone wants to actually work on it13:26
bauwserall the move operations are a bit confusing13:26
mriedemandrearosa: ah ok, so no cinder volumes involved13:26
bauwserjohnthetubaguy: well, I mean, if PaulMurray's proposal is ack'd or something like that13:26
andrearosamriedem: no sorry13:26
bauwserjohnthetubaguy: but agreed, fair to say that only if s/o is stepping in :)13:27
mriedemandrearosa: ok, i haven't heard of that one, there were some other volume-backed live migration bugs reported recently so i was thinking it was a dupe13:27
mriedemandrearosa: we probably need a bug reported with logs13:28
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johnthetubaguybauwser: true13:28
andrearosamriedem: ok thanks13:29
tdurakov[16:23]  <johnthetubaguy> bauwser: yep, migrate --live - where could ii find more about live flag?13:29
bauwsertdurakov: that's a discussion13:29
bauwsertdurakov: not something done yet13:29
tdurakovbauwser, ah13:29
bauwsertdurakov: unless someone wants to step in :)13:30
tdurakovbauwser, heh, adding some resize option to current l-m flow is a big challenge, more ifs more place to fail13:31
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bauwsertdurakov: nah the discussion was about to have the same REST API for all the migrations13:32
bauwsertdurakov: not adding more featurds13:32
tdurakovok13:32
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mriedemndipanoff: this is really old, there was a comment from you about making a fix in juno - is there any plan to still work on this? https://bugs.launchpad.net/nova/+bug/129183513:35
openstackLaunchpad bug 1291835 in OpenStack Compute (nova) "Repeated volume attach can cause u'message': u'The supplied device path (/dev/vdc) is in use.'" [Medium,Confirmed]13:35
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ndipanoffmriedem, I guess so13:35
ndipanoffit's a race but it's not that serious13:35
mriedemndipanoff: the suggestion was to move the device reservation into nova-api before casting to nova-compute for the volume attach13:37
ndipanoffyes13:37
ndipanoffbut they are in the same method13:37
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ndipanoffso just re-ordering calls I think is what we want13:37
mriedemndipanoff: i put a couple of other related bugs in there. in mitaka i think we should implement a callback listener in the libvirt driver to make device attach/detach synchronous from qemu13:37
ndipanoffand also making sure we unreserve on fail13:38
ndipanoffnot sure I get what you mean13:38
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mriedemvirDomainDeviceAttach/Detach is async13:40
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ndipanoffmriedem, i c13:41
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mriedemlike with bug https://bugs.launchpad.net/nova/+bug/1297635 too13:42
openstackLaunchpad bug 1297635 in OpenStack Compute (nova) "Race condition when deleting iscsi devices" [Medium,Confirmed]13:42
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mriedemi.e. it seems like we should wait for qemu to be done with the device detach before calling off to cinder to disconnect the volume13:43
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mriedemthe reason i wanted the callback on the attach side was because in tempest you have to add code that waits for the partition to show up on the guest before you can actually consider the volume attached, regardless of what cinder says the volume status is13:43
mriedemand that's because virDomainDeviceAttachFlags is async13:44
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ndipanoffmriedem, ok so13:45
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ndipanoffthis but can be solved by 1) having a lock like I proposed there13:46
ndipanoff2) using qemu builtin iscsi support (currently missing multipath support)13:46
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ndipanoffmriedem, now on the callback - wouldn't we still be racing with the guest os there?13:47
ndipanoffas in - when the callback fires it does not mean that the guest os did it's thing13:47
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mriedemthere is still a race,13:48
mriedembut we could at least be sure qemu finished it's job13:48
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ndipanoffmriedem, so if you are saying - let's instead test for that and stop sshing into the guest in tempest then +1<13:49
ndipanoff+1M13:49
ndipanoff:)13:49
mriedemyeah, the goal is to get closer to when cinder says the volume is in-use, it's actually ready to go13:51
ndipanoffyes that's a good idea13:51
mriedemrather than, 'we think it's in-use, but we don't really know, you figure it out'13:51
ndipanoffmight be a bit tricky to do since driver doesn't call cinder attach13:52
ndipanoffbut just a bit tricky really13:52
ndipanoffI like it - it's a good idea13:52
ndipanoffnot really related to the iscsi race though13:53
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mriedemyeah, in the attach case we call cinder first to connect the volume and then qemu, so we're just waiting for the event from libvirt that virDomainAttachDeviceFlags is done,13:56
mriedemin detach we'd wait for virDomainDetachDeviceFlags to complete before calling disconnect_volume on cinder13:56
mriedemanyway, something for mitaka13:56
mriedemwe have a shitload of volume related bugs with multipath involved13:56
danpbwith attach, it is basically synchronous13:57
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danpbso by time virDomainAttachDeviceFlags returns, you know the device exists in QEMU13:57
danpbthere's no guarantee the guets OS has done anything with it13:57
ndipanoffyeah but we shouldn't be checking the guest os really13:57
ndipanoffimho13:57
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danpbguess it depends what you are trying to validate in the test13:58
mriedemthe test is just waiting for the partition to show up before it tries writing a file to it13:58
danpbchecking the guest proves that the thing you did to qemu actually created something usable for the guest OS13:58
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ndipanoffah it's the stamp test13:58
mriedemndipanoff: yeah, still that one13:58
danpbif we didn't check the guest, we could think qemu was just fine, but in fact it was useless for the guest os13:58
mriedemwhich passes against liberty but not kilo or juno13:59
ndipanoffinteresting13:59
mriedembut it works when i do it manually on a stable/kilo devstack13:59
mriedemso go figure13:59
ndipanoffhow does it fail?13:59
mriedemin stable the initial volume attach api passes but the partition never shows up on the guest14:00
mriedemwe timeout and fail14:00
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ndipanoffinteresting14:01
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mriedemthis was another bug that came up this week, would be good if you and danpb could take a look since it's marked liberty-rc-potential14:04
mriedemhttps://bugs.launchpad.net/nova/+bug/149351214:04
openstackLaunchpad bug 1493512 in OpenStack Compute (nova) "n-cpu misreports shared storage when attempting to block migrate" [Undecided,New]14:04
mriedemand sseverson said that worked in kilo14:04
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ndipanoffmriedem, bleaugh14:06
mriedemif you start from the bottom and move it up it's easier14:07
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mriedemjbernard: jdurgin: ever seen this? https://bugs.launchpad.net/nova/+bug/148955514:08
openstackLaunchpad bug 1489555 in OpenStack Compute (nova) "nova rbd volume attach to running instance in Kilo is failing" [Undecided,New]14:08
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mriedemndipanoff: given your change to ignore the request device name when attaching a volume, this bug is basically invalid / won't fix now right? https://bugs.launchpad.net/nova/+bug/148922614:13
openstackLaunchpad bug 1489226 in OpenStack Compute (nova) "Nova should support specifying the block devices(/dev/sd*) name to attach to the instance" [Undecided,New]14:13
mriedemit's not a bug anyway, it's a feature request14:13
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mriedemseems that guy should just keep using ec2...14:15
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ndipanoffmriedem, lol that bug14:17
ndipanoffshut. it. down.14:17
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jbernardmriedem: never14:18
lxslimriedem: he should read https://review.openstack.org/19566214:20
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bauwserBobBall: mmm, Xen CI seems to have gone to the weeds14:20
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BobBallbauwser: Already disabled14:27
BobBallA new test was added yesterday which doesn't work with Xen14:28
bauwserBobBall: ack14:28
BobBallThere were 3 different failures in 1 week which sucks... And only one of them was directly the CI's fault :D14:28
bauwserBobBall: heh14:29
bauwserBobBall: you're my favourite person to yell :p14:29
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BobBallOne thing that would be very useful is a way to bulk-set all 'recent' failures to remove the -1 and to chuck them into a queue of things that should be re-tested.  Wouldn't that be nice.14:30
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mriedemndipanoff: thoughts on this bug? https://bugs.launchpad.net/nova/+bug/1480131 - they are asking to get the volume attachment id back in the GET call on that nova-api; the thing is we'd have to store the volume attachment id in the BDM table14:34
openstackLaunchpad bug 1480131 in OpenStack Compute (nova) "Volume_Attachment_ID uses Volume_ID" [Undecided,Confirmed] - Assigned to Wen Zhi Yu (yuywz)14:34
mriedemndipanoff: part of me just wants to say, we don't want to proxy to cinder in this case, so use the cinder api to get the attachment id if you need it, but it seems like something we *could* solve in nova by stashing the attachment id in the bdm object14:35
johnthetubaguysounds like that might help with multi attach, if we did that, but I really don't know the details there14:35
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mriedemeww i didn't think of multiattach14:35
mriedembut, it'd still be a single bdm per attach14:35
mriedemi'd think we could add the attachment_id to the block_device_mapping table like we have snapshot_id in there14:36
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mriedemit's definitely a spec, db migrations, bdm object updates, and api changes so a microversion14:37
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johnthetubaguyyeah, I was thinking the attachment id would be useful there, more than anything else14:38
johnthetubaguyit does sound like a spec14:38
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openstackgerritAndrew Laski proposed openstack/nova: Devref: Document why conductor has a task api/manager  https://review.openstack.org/22490714:42
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ndipanoffmriedem, otp sorry14:50
mriedemnp, i know i'm hammering you with questions :)14:50
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_diana_kashyap: do you have a couple of minutes to try something for me on your multi-node devstack sandbox?15:01
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kashyap_diana_: Sure15:01
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* kashyap checks if his setup is functional. . .15:03
mriedemjohnthetubaguy: i have notes inline in https://review.openstack.org/#/c/186742/ - short story is i think that's probably good enough for now in liberty, we can refactor/consolidate volume cleanup code in mitaka15:04
_diana_kashyap: Thanks! I'm curious if you are able to do a live-migration (with --block-migrate to get around the shared storage requirement)15:04
mriedemjohnthetubaguy: would be good if ndipanoff could take a pass at ^ before we approve though15:04
mriedemscottda: hemnafk: xyang1: would also be good if you could review https://review.openstack.org/#/c/186742/15:04
_diana_kashyap: ex. nova live-migration --block-migrate instance-3 compute-2.localhost.localdomain15:04
kashyap_diana_: I recall doing previously.  But let me try.  Yes, --block-migrate means no need for shared storage.15:05
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xyang1mriedem: sure, let me take a look15:05
johnthetubaguymriedem: OK, open to that idea, will go take another look at that15:05
kashyap_diana_: Under the hood, Nova is just calling libvirt.  I usually do a direct test with libvirt CLI (`virsh`).  Let me see find some notes on that.15:06
johnthetubaguymriedem: oh, oops, I think it was really an old string freeze -1 with some nits15:06
kashyap_diana_: I mean, a direct test to see if live block migration is working at libvirt level.15:07
_diana_kashyap: I don't get an error, but it also doesn't migrate. A 'nova show <instance>' shows that it didn't actually change hosts.15:07
mriedem_diana_: kashyap: maybe take a look at this https://bugs.launchpad.net/nova/+bug/149351215:07
openstackLaunchpad bug 1493512 in OpenStack Compute (nova) "n-cpu misreports shared storage when attempting to block migrate" [Undecided,New]15:07
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mriedem_diana_: migrate is a cast15:07
kashyapmriedem: I think _diana_ is trying to reproduce that15:07
mriedemso there might actually be an instance fault or instance action error associated with the instance15:07
mriedem_diana_: there should be an error in the n-cpu log though15:08
kashyapYeah15:08
ndipanoffmriedem, that fix looks good15:08
leakypipestdurakov: you see the note on openstack-dev from PaulMurray entitled "live migration in Mitaka"?15:09
mriedemndipanoff: sweet, a +2 from you there would be nice when you're off the phone15:09
leakypipestdurakov: you might want to throw your hat into that ring, since you've been focusing on that for a while now :)15:09
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_diana_kashyap, mriedem: this is the bug I'm trying to reproduce: https://bugs.launchpad.net/nova/+bug/1496135 But for now, I'm just trying to do a successful live-migration for the first time (I'm new to openstack).15:09
openstackLaunchpad bug 1496135 in OpenStack Compute (nova) "libvirt live-migration will not honor destination vcpu_pin_set config" [Medium,New]15:09
tdurakovleakypipes, yes, seen, i'd like to watch video from summit first15:09
leakypipestdurakov: it's a good one :) mgilliard at his finest :)15:10
tdurakov:)15:10
kashyap_diana_: Here's some notes to test (a couple of diff. variants) migration directly with libivirt - https://kashyapc.fedorapeople.org/virt/libvirt-migration-tests-with-qemu+tcp.txt15:10
kashyap_diana_: If that succeeds, you can try w/ --block-migrate with Nova.15:10
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ndipanoffmriedem, done - best for johnthetubaguy to ack it15:12
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_diana_kashyap: And when you try a live-migration with --block-migrate on your multi-node devstack, do you get errors? I want to rule out an incorrectly setup multi-node devsatck first (before digging into the actual migration guts)15:13
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_diana_kashyap: I'm asking because I'm getting keystone errors using the "same" setup as you. For example: Unable to establish connection to http://192.168.122.167:35357/v2.0/tokens15:14
_diana_kashyap: So I think I have some more set up to do first.15:14
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mriedemndipanoff: thanks15:15
kashyap_diana_: Yeah, ensure you have password-less SSH access to the dest host.15:15
kashyap_diana_: I need to step out for a bit.  I'll check scroll when I'm back.15:15
_diana_kashyap: thanks15:15
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lxslidoes string freeze prevent changing _LW strings please?15:17
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johnthetubaguymriedem: ndipanoff: thanks, agreed its a step forward, I am good with that15:19
johnthetubaguylxsli: not any more15:19
johnthetubaguylxsli: https://wiki.openstack.org/wiki/StringFreeze15:19
ndipanoffmriedem, as for that volume attachment id thing15:20
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ndipanoffI'd close it as won't fix15:20
johnthetubaguylxsli: only just changed that15:20
ndipanoffwe really don't want to further couple nova and cinder15:20
ndipanoffplus that thing just returns a volume uuid so it's probably not even a bug15:20
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johnthetubaguyndipanoff: mriedem: are you seeing any more bugs that should block RC1?15:20
mriedemjohnthetubaguy: it sounds like there is some live migration bug that a bunch of people are hitting this week15:21
lxslijohnthetubaguy: "What's not OK: Changing existing strings... EG log messages"15:21
mriedemndipanoff: i agree the volume attachment id thing isn't a bug, it's a feature request15:21
lxslijohnthetubaguy: still reads to me as though _LW is off limits?15:22
mriedemndipanoff: which is why i marked as wishlist15:22
johnthetubaguylxsli: ah, I missed the change bit15:22
johnthetubaguylxsli: depends how bad it is really15:22
mriedemndipanoff: there is a workaround, they can get the volume attachment id from cinder when they do the volume get there i think15:22
lxsliit's a bit moot as the change had a _ change too15:22
johnthetubaguylxsli: if we would rather ship untranslated than inaccurate, I am good with it15:22
lxslipretty minor stuff too15:23
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johnthetubaguymriedem: ah, did you see a link to that, I remember you mentioning something earlier15:26
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johnthetubaguyndipanoff: this one seems interesting around ephemeral disk checks: https://review.openstack.org/#/c/213762/215:27
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openstackgerritMike Dorman proposed openstack/nova: Cells v1: Support attach/detach interface events  https://review.openstack.org/21545915:30
xyang1mriedem: I just added comments there.15:31
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xyang1mriedem: so the two patches are related but not exactly the same.15:35
mriedemjohnthetubaguy: this one https://bugs.launchpad.net/nova/+bug/149351215:35
openstackLaunchpad bug 1493512 in OpenStack Compute (nova) "n-cpu misreports shared storage when attempting to block migrate" [Undecided,New]15:35
mdennyIn Juno the virsh dumpxml instance has 26 luns on nova compute yet CentOS 6.6 running on that instance has 25 luns, is this a known limit?15:36
openstackgerritEd Leafe proposed openstack/nova: Replace os.path.join() for URLs  https://review.openstack.org/21830915:37
johnthetubaguymriedem: ah, thanks, important, not a super new regression it seems15:37
mriedemxyang1: in that code, when we call volume_api.detach, we're already in a with excutils.save_and_reraise_exception(): block15:38
mriedemxyang1: so unless i'm missing something, we're already going to raise the original exception from the volume_api.attach failure15:38
xyang1mriedem: I mean if detach throws exception, ignore it15:39
johnthetubaguymriedem: dammit, yes, I read that earlier15:39
openstackgerritJoel Coffman proposed openstack/nova: libvirt: Add unit tests for methods  https://review.openstack.org/19888015:39
xyang1mriedem: do you want to throw exception during cleanup?15:39
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mriedemxyang1: excutils.save_and_reraise_exception() should ignore it15:41
mriedemxyang1: and since it's the last thing we do in the excutils.save_and_reraise_exception() block, i don't think it matters if it raises an exception15:41
mriedemxyang1: it wouldn't hurt to handle it and pass, but i don't think it's going to cause problems either15:41
xyang1mriedem: alright15:41
_diana_kashyap: Wouldn't I have trouble doing anything via the CLI or dashboard if was having keystone issues though? But it's the only error I see in the devstack logs when I try to do a live-migration. Off to grab some lunch... back in a bit15:42
xyang1mriedem: so I think it is fine, but our patch was trying to solve a similar problem earlier in that function15:42
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xyang1mriedem: so this won't fix that15:43
openstackgerritMark Doffman proposed openstack/nova: DO NOT MERGE: Extra logging for lxc teardown fail.  https://review.openstack.org/22312515:44
xyang1mriedem: we can do something similar for initialize_connection15:44
mriedemxyang1: oh15:45
mriedemhrm, maybe unduplicate your bug15:45
mriedemdoffm: fyi https://bugs.launchpad.net/nova/+bug/149734315:45
openstackLaunchpad bug 1497343 in OpenStack Compute (nova) "Need to consolidate duplicated volume detach code between compute manager and block_device" [Low,Triaged]15:45
xyang1mriedem: ok15:45
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ndipanoffjohnthetubaguy, thanks - commenting15:48
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openstackgerritPavel Kholkin proposed openstack/nova: WIP: Use legacy engineFacade from oslo_db.enginefacade  https://review.openstack.org/22131016:20
openstackgerritAndrea Rosa proposed openstack/nova: Nova-manage command for cleaning volume attachment  https://review.openstack.org/18453716:20
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openstackgerritNikola Dipanov proposed openstack/nova: rebuild: RPC sends additional args and claims are done  https://review.openstack.org/20048517:02
openstackgerritNikola Dipanov proposed openstack/nova: claims: move a debug msg to a warn on missing migration  https://review.openstack.org/22401317:02
ndipanoffsuperdan, ^^17:02
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openstackgerritOpenStack Proposal Bot proposed openstack/nova: Updated from global requirements  https://review.openstack.org/22523117:12
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openstackgerritMike Dorman proposed openstack/nova: Cells v1: Support attach/detach interface events  https://review.openstack.org/21545917:21
openstackgerritDaniel Berrange proposed openstack/nova-specs: Libvirt real time instances  https://review.openstack.org/13968817:22
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mriedem_lunchociuhandu: can you see if we can get the test_add_remove_fixed_ip tempest test to run on https://review.openstack.org/#/c/214493/ in the hyper-v ci?17:54
mriedem_lunchthat's what's holding up that change17:54
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ctrathmikal: has it been decided that we don't need to do a fix for this in Nova?  https://bugs.launchpad.net/nova/+bug/141508718:18
openstackLaunchpad bug 1415087 in OpenStack Compute (nova) "[OSSA 2015-011] Format-guessing and file disclosure in image convert (CVE-2015-1850, CVE-2015-1851)" [High,Triaged] - Assigned to Tony Breeds (o-tony)18:18
ctraththere hasn't been any movement in that bug for a while18:19
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superdanctrath: the state of the bug seems clear to me18:21
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manjeet_https://review.openstack.org/#/c/19888018:22
manjeet_does this resolves any issue ?18:23
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ctrathsuperdan: triaged?18:23
superdanctrath: I mean the comments.. have you read them? No plans for a nova patch, and if we decide later, there'll be a different advisory18:24
ctrathyeah.. it's not clear that there isn't a plan18:25
ctrathI guess I was expecting a response from tonyb18:25
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openstackgerritDrew Fisher proposed openstack/nova: Add Solaris to vm_modes and hvtype  https://review.openstack.org/22526718:31
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doffmctrath: https://bugs.launchpad.net/nova/+bug/149729318:32
openstackLaunchpad bug 1497293 in OpenStack Compute (nova) "Nova misuses qemu-img for kernel and initrd" [Medium,Confirmed] - Assigned to Mark Doffman (mjdoffma)18:32
mragupatAfter we spun VM in open-stack ? Is it possible to edit the network and change the ip address of the VM ?18:33
openstackgerritNikola Dipanov proposed openstack/nova: rebuild: RPC sends additional args and claims are done  https://review.openstack.org/20048518:35
openstackgerritNikola Dipanov proposed openstack/nova: claims: move a debug msg to a warn on missing migration  https://review.openstack.org/22401318:35
ndipanoffsuperdan, I found an issue ^18:36
ndipanoffcheck it out again18:36
superdancall, back in a bit18:36
ndipanoffsuperdan, cool thanks!18:36
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openstackgerritxing-yang proposed openstack/nova: Rollback is needed if initialize_connection times out  https://review.openstack.org/22527819:02
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openstackgerritJiri Suchomel proposed openstack/nova: Get the instance availability zone before creating volume so we can pass actual AZ value to volume API.  https://review.openstack.org/22511919:08
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bauwsermriedem_lunch: around ? I'm currently reviewing https://review.openstack.org/#/c/225119/2/nova/virt/block_device.py,cm19:28
bauwsermriedem_lunch: and I need some clarification about how Cinder needs to know Nova AZs19:29
bauwsermriedem_lunch: from my understanding, we don't need to have the same AZs for Nova and Cinder, since there are 2 different failure domains (host vs. volume)19:31
openstackgerritMark Doffman proposed openstack/nova: libvirt: Don't attempt to convert initrd images.  https://review.openstack.org/22528919:32
vilobhmm_11superdan : ping19:32
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_diana_kashyap, superdan: It's a miracle! I have live-migration working :) I ran into this: https://bugs.launchpad.net/devstack/+bug/1487262 (among a bunch of other things). If I wasn't 7 months pregnant, it would be beer o'clock. #cheers19:53
openstackLaunchpad bug 1487262 in devstack "live migration doesn't work with default config" [Undecided,In progress] - Assigned to Zhenzan Zhou (zhenzan-zhou)19:53
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superdan_diana_: understood ... non-alcoholic beer o clock, glad to hear it19:54
_diana_superdan, kashyap, etc: thanks again for the help. have a great weekend!19:55
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vilobhmm_11superdan : ping19:56
vilobhmm_11quick question19:56
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superdanvilobhmm_11: okay19:58
vilobhmm_11when trying to boot multiple instance just 519:58
openstackgerritjichenjc proposed openstack/nova-specs: Allow adjust ephemeral disks during resize  https://review.openstack.org/14573619:58
vilobhmm_11and the scheduler either times out or says no valid host found19:58
vilobhmm_11seeing lots of "message:DynamicĀ looping call <bound method Service.periodic_tasks of <nova.service.Service object at 0x39962d0>> sleeping for 58.06 seconds"19:58
vilobhmm_11messages in scheduler log19:58
vilobhmm_11not understanding what that exactly means19:59
vilobhmm_11https://bugs.launchpad.net/nova/+bug/1368037Ā check comment irc://irc.corp.yahoo-inc.com:6697/#7 talks about the sameā€¦19:59
openstackLaunchpad bug 1368037 in OpenStack Compute (nova) "tempest-dsvm-postgres-full fail with 'Error. Unable to associate floating ip'" [Medium,Incomplete]19:59
superdanit means it's running periodic tasks, which is good19:59
vilobhmm_11ok19:59
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vilobhmm_11so that wait should not be a bottleneckā€¦20:00
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superdanright20:01
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kashyap_diana_: Likewise (I _just_ came back).  We can troubleshoot when you're back on Monday.20:03
kashyapAh, you said you got it working, great!20:03
_diana_kashyap: :)20:03
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_diana_kashyap: Thanks!20:04
vilobhmm_11superdan : do you see a possible reason why this might be happening ? or have you seen anything of this sort happening before ?20:04
superdanvilobhmm_11: why it's running periodic tasks?20:06
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vilobhmm_11superdan : I don't understand the concept of periodic task and why the periodic tasks are run; thats why I thought will check with you..20:09
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mriedemvilobhmm_11: because there are tasks which need to be run, periodically20:12
superdanvilobhmm_11: it's supposed to run them all the time.. if it didn't nothing would work20:12
superdanright20:12
mriedemvilobhmm_11: most of the tasks are health checking type things, or cleanup tasks20:12
vilobhmm_11mriedem, dansmith : that makes it more clear..thanks!20:14
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bauwservilobhmm_11: IIRC, the only periodic task for the scheduler is for the quotas expiration20:15
jichenmriedem: hi, have a min for a question?20:15
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superdanbauwser: service checkin20:15
superdanbauwser: veeeery important :)20:15
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bauwsersuperdan: service checkin' ?20:16
superdanbauwser: the service update ... the thing that makes service-list show it as up20:16
bauwserhah20:16
bauwserright20:16
superdan:)20:17
mriedemruns every 10 seconds right?20:17
mriedemjichen: maybe, just ask20:17
jichenmriedem: do you know each 3rd party test runs full tempest or just a subset of them? any criteria if they tailor it ?20:18
jichenmriedem: I mean 3rd party CI, sorry20:18
mriedembauwser: i guess i'm not familiar with https://review.openstack.org/#/c/225119/20:18
mriedemi'd have to dig int othe code20:19
mriedemjichen: i think some are filtering on subsets20:19
vilobhmm_11bauwser, superdan : do 2 periodic task for scheduler are quotas expiration and service checkin ? starts to look for the same in the code20:19
bauwsermriedem: yeah, me too, but I wonder why we need to provide the AZ to Cinder20:19
bauwservilobhmm_11: I just looked at the service, and so we have 3 periodic taks20:19
bauwsersks20:19
superdanvilobhmm_11: I'm not sure what your goal is.. if you're having problems booting guests, the fact that they *are* running is not your problem20:19
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bauwservilobhmm_11: so, there is the main Service checking done by the base Service20:20
jichenmriedem: any wiki or any info that I can refer to ? or maybe someone might know much about it ?Thanks20:20
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jichenmriedem: or maybe I can ask in ML?20:20
bauwservilobhmm_11: then, there is the quota expiration and then there is a base method for any driver20:20
vilobhmm_11superdan : yes that is clear now..thanks !20:20
mriedemjichen: i'd probably ask people that run 3rd party ci on nova, like krtaylor, BobBall_AWOL, ociuhandu20:20
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jichenmriedem: ok, thanks for the info :)20:21
vilobhmm_11bauwser : cool thanks!20:21
bauwservilobhmm_11: like superdan said, no reasons to have the periodic tasks to be wrong20:21
vilobhmm_11bauwser : ok20:22
bauwservilobhmm_11: you probably need to look at the n-sch.log20:22
bauwserand see which filter returns 0 hosts20:22
vilobhmm_11I am looking at the same20:22
vilobhmm_11ComputeHostFilter returns 020:22
bauwsergiven your problem, I'd bet for the ComputeFilter saying 0 hostds20:22
bauwserheh20:22
vilobhmm_11:P20:22
bauwserI should play pokier20:22
bauwserpoker20:22
vilobhmm_11you should20:22
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vilobhmm_11ha20:22
bauwsersoooo, nova service-list20:23
bauwserand see if your n-cpu are fine20:23
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bauwsermriedem: back to the AZ stuff, I understand that operators would love to have the same AZs20:24
vilobhmm_11bauwser : yes checking it20:24
bauwsermriedem: because they don't know what are the AZs actually, and they think it's a failure domain20:24
bauwserwhich is not20:24
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mriedembauwser: was the error in the bug report coming from nova or cinder?20:25
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mriedembauwser: maybe we need someone from cinder to peak at that change20:25
mriedempeek20:25
mriedemjgriffith: is always good for a peek20:25
bauwsermriedem: agreed20:25
bauwsermriedem: I guess the error comes from Cinder20:25
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bauwser"creating the volume will fail" => so yeah it's a Cinder error20:26
bauwser(at least, my Atom says it's not in Nova :) )20:26
bauwserman, everytime I'm looking at AZs, I'm thinking about writing a ML flamewar saying "AZs are not failure domains"20:27
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mriedemwouldn't a flamewar imply someone would disagree with you?20:28
bauwserzactly20:28
bauwserI expect that20:28
bauwserI mean, AZs are failure domains, but for hosts, not clouds :)20:29
bauwserit just makes sure that 2 instances in 2 AZs will not have the same hosts20:29
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bauwserwhich could be a strict definition of a failure domain20:29
bauwserbut not the way people are expecting with the term "Availability Zone"20:30
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mriedemi guess i have to read up on CONF.cinder.cross_az_attach20:31
mriedemi -1ed for now anyway20:31
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mriedemneeds more details in the commit message, pep8 error, and needs a unit test20:31
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bauwsermriedem: sure, I was about nitpicking for importing the CONF stuff20:35
bauwsermriedem: but that leaves me wondering why we need all of that20:36
bauwsermriedem: I mean, I understand the problem20:36
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bauwsermriedem: since instance.az can be nullable by default, getting the real AZ by calling the AZ helper (which gets from the real host) is understandable20:36
bauwsermriedem: but I don't like seeing that to called in a virt domain20:37
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bauwsermriedem: so my wonders are20:37
bauwser#1 that shows that inst.az is useless because we need to call an helper, we should probably think about getting the real AZ other way20:37
bauwser#2 why the heck are we needing that ?20:38
mriedemyou want to see the az helper called in the nova-api layer?20:38
mriedeminstead?20:38
bauwsermriedem: I mean20:38
bauwsermriedem: something is wrong and I wonder how we should provide the real AZ information to the block device20:39
bauwsermriedem: but only if *really* needed20:39
bauwserand yeah, the AZ helper should stay being called by n-api20:40
bauwserbecause of the layer isolation20:40
bauwseranyway, -1'ing for the moment but I dislike not providing a clear alternative path for the moment :/20:41
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mriedemi don't know enough about the issue to really say either way. if we need to pass this in from the n-api layer that seems possible to do from the volume attachment api20:43
mriedemi also don't know enough about that az helper to understand the layer isolation issues, it looks like a basic utility method20:43
bauwsermriedem: at least, we should get it from a NovaObject IMHO20:44
bauwsermriedem: it's using a cache20:44
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mriedemi thought you were trying to remove the cache?20:44
bauwsermriedem: what I want to remove, but that's another story20:44
bauwseryeah20:44
bauwsermriedem: but IMHO we have objects, we should use them from the compute20:44
bauwserand not call some old helper modules20:45
mriedemdoes the helper method hit the DB directly?20:45
bauwserfor getting something from an object anyway...20:45
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bauwsermriedem: nope, it's calling the Compute object IIRC20:45
mriedemso....20:45
mriedemisn't that what you want?20:45
bauwsermriedem: so that's okay, but that's an indirection20:45
openstackgerritOpenStack Proposal Bot proposed openstack/nova: Updated from global requirements  https://review.openstack.org/22523120:45
mriedembauwser: there are other things in the virt drivers that get things indirectly via the objects20:46
bauwsermriedem: that's another level of indirection20:46
bauwsermriedem: oh sec, thinking about something20:47
bauwseryeah, I have an idea20:48
bauwsermriedem: adding a property to the Instance object for calling the real AZ from the ComputeNode object would have my preference20:48
bauwsermriedem: or a methog .get_host_az()20:49
mriedemok20:50
bauwserthat way, we would keep the Instance object being the right facade for getting the info20:50
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openstackgerritAkhila Chetlapalle proposed openstack/python-novaclient: Support to boot a VM with network name  https://review.openstack.org/22532620:56
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mriedembauwser: i have some disturbing news for you21:17
bauwsermriedem: okay ? santa is not really real ?21:18
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mriedemhttps://github.com/openstack/nova/blob/master/nova/volume/cinder.py#L29521:18
mriedemaz.get_instance_availability_zone is already called from volume_api.check_attach21:18
mriedemwhich is a thing that's already called from block_device21:18
mriedemalthough,21:19
bauwserweird21:19
bauwserI checked that previously21:19
mriedemwhen the compute manager calls block_device.attach, i think it doesn't pass check_attach=True21:19
bauwserand I missed that one21:19
bauwsermriedem: never ever ?21:19
mriedemi think nova-api actually calls volume_api.check_attach21:19
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bauwsermriedem: I see21:19
mriedemblock_device.attach has a kwarg to call it though21:20
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mriedemi just do'nt think it's used from the compute manager21:20
bauwsermriedem: okay, so we're still good21:20
mriedemdo_driver_attach=True is what happens from the compute manager21:20
mriedembut,21:20
mriedemthere is still precedent here already for that call from the compute layer21:20
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bauwsermriedem: I need to read code then21:21
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mriedemhttps://github.com/openstack/nova/blob/master/nova/compute/api.py#L306521:22
mriedemthat's the call from nova-api21:23
bauwserokay21:23
bauwseragreed21:23
mriedemthis is the compute manager call https://github.com/openstack/nova/blob/master/nova/compute/manager.py#L455321:24
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bauwsermriedem: okay, I need to think about that21:26
mriedemi guess this would be a boot from volume case21:26
bauwserbut I now see why the proposer added that call21:27
bauwseryeah21:27
mriedembut i think compute api still calls volume_api.check_attach when validating bdms in the boot from volume call21:27
mriedemoh but only for a preexisting volume https://github.com/openstack/nova/blob/master/nova/compute/api.py#L133321:27
mriedemnot in the source=image dest=volume case21:28
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bauwseryeah the volume exists21:29
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mriedemvolume_api.check_attach is doing the same az check, so maybe they should just call that from compute.api._validate_bdm21:30
mriedemin the source=image/dest=volume case21:30
mriedemidk, whatevs, it's late on a friday21:30
bauwseryup, me too21:30
bauwsermy brain is a bit fried (c) johnthetubaguy21:31
bauwserfood for thoughts21:31
bauwserhave a nice we, folks !21:31
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bauzasmriedem: ty for your help21:31
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mriedemttyl21:33
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mriedemhemnafk: i have a feeling that you might have already fixed this in os-brick in liberty, but i'm not sure https://bugs.launchpad.net/nova/+bug/146182721:52
openstackLaunchpad bug 1461827 in OpenStack Compute (nova) "Fail to attach volumes using FC multipath" [Undecided,New]21:52
mriedemmaybe this? https://github.com/openstack/os-brick/commit/3ea86f7d605d7109f4e13c1566ba1a14dc85644321:53
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