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#openstack-nova - 2017-11-14
14:30:51 kashyap Do people do that often? I thought most do it only with Debian / Ubuntu / Fedora
14:31:13 openstackgerrit Eric Fried proposed openstack/nova master: Test allocation candidates: multiple aggregates https://review.openstack.org/518633
14:31:21 efried gibi ^ That was... interesting.
14:36:03 sean-k-mooney kashyap: stack with centos?
14:36:26 bhagyashris mriedem: Hi, I have one doubt regarding the instance snapshot. When I create the instance snapshot using the nova image-create <server-id> <snapshot-name> the it only creates the plain image that means it only calls the image-create and not image-upload and the image remains in queued status so How can I create instance snapshot in active state.
14:36:33 sean-k-mooney kashyap: i normally do all my dev on ubuntu but i need to use centos currently because reasons....
14:37:46 kashyap sean-k-mooney: Yeah
14:38:14 gibi efried: did you encountered you type of problems during the rebase?
14:38:17 kashyap sean-k-mooney: Might be also want check on #openstack-qa channel
14:38:25 sean-k-mooney kashyap: fedora is rather fragile as its a bit too bleading edge
14:38:33 efried gibi The test results changed rather dramatically.
14:38:43 kashyap sean-k-mooney: Yeah, bled this morning, trying to shave a yak.
14:38:49 efried gibi The good news is that all the results now at least seem to have the proper resources in them.
14:39:02 efried gibi I think the problems are now limited to crossing aggregates.
14:39:56 sean-k-mooney kashyap: im currently hitting a issue with nova that is proably unrelated to centos to be honest just have not seen it last time i stacked on ubuntu. devstack is not finding the nova compute agent in the cells db and devstack is failing because of this
14:40:47 gibi efried: I feel that is actually a good news. From having multiple problems we managed to go done to one single issue
14:41:19 efried gibi Oh, definitely agree.
14:41:23 efried Just made for a tough rebase :)
14:42:31 kashyap sean-k-mooney: I see, afraid I don't know the cause of it.
14:42:48 mriedem bhagyashris: something probably failed server-side, because nova-compute will upload the image data to glance
14:44:09 sean-k-mooney kashyap: im restacking with reclone=true to make sure eveything is uptodate but basically im seeing openstack --os-cloud devstack-admin --os-region RegionOne compute service list --host silpixa00385232 --service nova-compute -c ID -f value fail.
14:44:30 kashyap sean-k-mooney: In the past 'reclone=true' screwed me up. Let me dig up the reason, I recall writing it down why it's "bad"
14:44:40 kashyap IIRC, it messes up with Git remotes
14:45:21 sean-k-mooney kashyap: hehe i have been using devstack for 4 years i know why it can be bad but in this case its safe enough as it will just do a git pull on all the repos in /opt/stack
14:45:40 bhagyashris mriedem: but there is no optional parameter --file at the time of creation of instance snapshot so thats why the snapshot created at glance is in queued state
14:45:45 kashyap sean-k-mooney: Ah, okay, you're well-scarred then.
14:46:09 mriedem bhagyashris: i think you might be misunderstanding what the nova image-create operation does
14:46:17 mriedem it's not the same as glance image-create and image-upload
14:46:37 sean-k-mooney kashyap: enough so to be imune to the fact it will happliy destroy your system if you dont speak to it firmly form time to time yes
14:47:00 kashyap sean-k-mooney: I use this little ugly script as a 'hook' to update all the repos -- http://paste.openstack.org/show/626273/
14:47:10 kashyap sean-k-mooney: Heh, indeed
14:48:57 sean-k-mooney kashyap: yes that is basically what reclone=true does in the git_clone fuction https://github.com/openstack-dev/devstack/blob/master/functions-common#L493-L566 but it also support gerrit references,branches and tags
14:48:58 bhagyashris bhagyashris: I will go through nova image-create code
14:49:07 kashyap sean-k-mooney: Yeah, that's why I use a minimal script that uses `virt-builder` that sets up DevStack env from scratch, if I'm taking too much time to debug the darn thing. (Should clean up the script) -- https://kashyapc.fedorapeople.org/virt/openstack/setup-devstack-vm.bash
14:49:21 bhagyashris mriedem: I will go through nova image-create code
14:49:40 kashyap sean-k-mooney: Ah, noted; okay I'll be a bit less fearful of it, and give it a whirl next time
14:50:05 mriedem bhagyashris: nova-api creates an image in glance and then casts to the nova-compute service to actually snapshot the disk and upload the file to glance for the snapshot image,
14:50:17 mriedem so if the image was stuck in queued state forever, something probably failed on the nova-compute side
14:51:39 jianghuaw_ bauzas, jaypipes: are you around?
14:51:41 sean-k-mooney reclone=true is safe, PIP_UPGRADE=ture is not and should be a last resort as it ignores the upper-constriants file
14:52:51 jianghuaw_ bauzas, jaypipes: Have some questions on how to report nested resource providers and traits from drivers.
14:52:56 bhagyashris mriedem: ohh ok. Thank you :)
14:53:37 bauzas jianghuaw: over the phone, sorry
14:54:09 jianghuaw_ bauzas, ok. May chat with you later.
14:56:22 openstackgerrit Matt Riedemann proposed openstack/nova stable/pike: Handle InstanceNotFound when setting password via metadata https://review.openstack.org/519659
15:00:00 openstackgerrit Jianghua Wang proposed openstack/nova master: XenAPI: Unit tests must mock os_xenapi calls https://review.openstack.org/499573
15:04:11 jaypipes jianghuaw_: just got back. what's up?
15:05:41 jianghuaw_ jaypipes, my problem is how to report the nested resource providers and traits from drivers to resource provider. Should we use the existing get_inventory()?
15:05:57 jaypipes sean-k-mooney: what is stephenfin's opinion?
15:06:11 jianghuaw_ jaypipes, or should we define new interfaces?
15:06:26 jaypipes jianghuaw_: no, we will need to define a new update_inventory() interface to the virt driver API.
15:06:44 openstackgerrit Matt Riedemann proposed openstack/nova master: Add FlavorPayload.description for versioned notifications https://review.openstack.org/514782
15:06:45 openstackgerrit Matt Riedemann proposed openstack/nova master: Add microversion to allow setting flavor description https://review.openstack.org/515213
15:07:02 sean-k-mooney jaypipes: i think he as ok with either version. but stephenfin if you are around maybe you can comment
15:07:19 jianghuaw_ what's the data structure return by update_inventory()?
15:08:23 sean-k-mooney jaypipes: there are two patches from rodolfo that are effect by this. https://review.openstack.org/#/c/487405/ and https://review.openstack.org/#/c/484386/
15:08:52 jaypipes jianghuaw_: I was thinking a boolean. The update_inventory() would accept a ProviderTree object and the virt driver would update the providers in the ProviderTree appropriately, returning whether anything changed.
15:09:05 jaypipes sean-k-mooney: understood. I will try to get to those today.
15:10:03 sean-k-mooney jaypipes: thanks jay. and no worries it would be good to come to a dession but soon but i also want to make the right one so lets not rush.
15:10:55 jianghuaw_ jaypipes, so everything is done in driver. resource tracker just trigger the update. right?
15:10:55 openstackgerrit Matt Riedemann proposed openstack/nova master: Validate new image via scheduler during rebuild https://review.openstack.org/519662
15:12:19 efried jaypipes So I'm clear, does ProviderTree include the resources, or just the provider hierarchy?
15:12:49 openstackgerrit Ilya Shakhat proposed openstack/nova master: Initialize osprofiler in uWSGI application https://review.openstack.org/519664
15:13:14 sean-k-mooney efried: i think the full tree with the resouces. at least that is what i had assumed at the PTG
15:13:36 jaypipes jianghuaw_: for now, yes, that's the plan. eventually, a generic device manager may also get called... but that's later on.
15:13:36 jianghuaw_ jaypipes, do you have a rough plan on when will start to add the interface of update_inventory()?
15:13:50 efried sean-k-mooney That would make sense if the method is called update_inventory
15:13:55 jaypipes efried: no, inventory records are kept in the ProviderTree for each resource class the provider provides
15:14:24 jianghuaw_ jaypipes, just wonder if it's proper time to start n-rp work for vgpu in XenAPI.
15:16:02 openstackgerrit Xuanzhou Perry Dong proposed openstack/nova master: Check for volume size https://review.openstack.org/519666
15:16:10 efried jianghuaw_ If you do, you'll have to base it on the series in progress, starting at https://review.openstack.org/#/c/377138/
15:17:35 jianghuaw_ efried, thanks. yes I have been looking at this series of patches.
15:18:26 efried jianghuaw_ But also note that we (jaypipes, alex_xu, me, etc.) haven't yet written the GET /allocation_candidates affordance for nrp.
15:18:52 efried Which could make the scheduling results... unpredictable.
15:19:56 jianghuaw_ efried, I see. I had some testing today. I understood n-rp has not been completed yet. But wonder if we can do things in parallel.
15:20:14 sean-k-mooney efried: is the numbered traits syntax for associating tratis and resouce requests that was discussed at the summit still going ahead for pike.
15:20:29 sean-k-mooney sorry queens
15:20:40 efried jianghuaw_ To some extent, in the sense that more than one person can be proposing patches for the various pieces of functionality; but in this case, they should probably be proposed on that same series. Which can get confusing for rebases.
15:21:09 efried sean-k-mooney Yes, and good progress has been made there. At this point it's stalled waiting for the big refactor series starting at https://review.openstack.org/#/c/516778/
15:21:50 sean-k-mooney efried: good to hear is the requesting traits via flavours work integrated with this also
15:21:57 jianghuaw_ efried, understood.
15:22:41 efried sean-k-mooney Yes. The code to parse granular resources & traits from flavor extra specs, pass to the scheduler, pass to GET /allocation_candidates, parse in placement from the querystring, and pass to the internal methods - all that is done.
15:23:15 efried sean-k-mooney The remaining piece is to make said internal methods actually Do The Right Thing with that information, which will bump the placement microversion; and then switch on the support from the scheduler side.
15:23:48 openstackgerrit Matt Riedemann proposed openstack/nova stable/pike: Validate new image via scheduler during rebuild https://review.openstack.org/519672
15:24:32 efried sean-k-mooney You can see that stuff here: https://review.openstack.org/#/q/topic:bp/granular-resource-requests
15:25:16 sean-k-mooney efried: ah ok, so yes good progress is certenly apt. that will make my verified boot friend very happy to hear once i translate it for them.
15:27:37 sean-k-mooney jaypipes: on that note im going to split all the stateful traits into seperate patches. i know currently we do not want to standardies stateful traits so until we come to a dession on how to model the state of capablities ill advise the use of CUSTOM_ traits
15:30:08 jaypipes jianghuaw_: I'd appreciate another week to get more n-r-p stuff merged.
15:30:32 jaypipes sean-k-mooney: there's no such thing as a stateful trait... I'll respond to you on those patches.
15:31:05 jianghuaw_ jaypipes: cool. Thanks.
15:31:31 sean-k-mooney jaypipes: :) i know but without inventing another entity to tag ever resouce provider with and request every where we request a trait im inventing that term untill we have something better
15:32:20 sean-k-mooney jaypipes: but for now ill reduce the scope of those patches to just capabilities with no state implied as you suggesed in the patch reviews previously
15:32:41 jaypipes sean-k-mooney: whether or not a particular trait is applied to a specific resource provider is not relevant to what the trait represents.
15:32:46 jaypipes sean-k-mooney: that's all I'm saying.
15:33:23 jaypipes sean-k-mooney: if a node supports UEFI boot mode, then it supports UEFI boot mode. Whether or not that node is *booted* using UEFI boot mode is entirely a different thing.
15:34:43 jianghuaw_ jaypipes, I'd appreciate if you can have time to review these patches again: https://review.openstack.org/#/c/512965 https://review.openstack.org/#/c/516217/
15:34:45 sean-k-mooney jaypipes: yep understood traits solves the fomer. i had hoped it could be used to solve the later but if we want to use something else for that then that is fine too so long as we can eventually solve both
15:41:17 crlb Hello jaypipes, can I ask you about change #516796?
15:41:43 openstackgerrit Matt Riedemann proposed openstack/nova stable/ocata: Validate new image via scheduler during rebuild https://review.openstack.org/519681
15:41:46 efried sean-k-mooney What patches are we talking about?

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