Tuesday, 2017-12-12

openstackgerritMerged openstack/nova master: Make live migration hold resources with a migration allocation  https://review.openstack.org/50763800:00
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mriedemwoot ^00:09
openstackgerritMerged openstack/nova master: remove glance usage inside compute  https://review.openstack.org/51139200:10
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openstackgerritSam Morrison proposed openstack/nova master: Allow ability for non admin users to use all filters on server list.  https://review.openstack.org/52655800:42
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openstackgerritHuang Rui proposed openstack/nova master: z/VM Driver: Initial change set of z/VM driver  https://review.openstack.org/52338702:01
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openstackgerritTakashi NATSUME proposed openstack/nova master: List/show all server migration types (1/2)  https://review.openstack.org/43060802:31
openstackgerritTakashi NATSUME proposed openstack/nova master: List/show all server migration types (2/2)  https://review.openstack.org/45948302:32
openstackgerritTakashi NATSUME proposed openstack/python-novaclient master: Microversion 2.57 - List/Show all server migration types  https://review.openstack.org/43083902:32
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openstackgerritMatt Riedemann proposed openstack/nova master: Update and complete volume attachments during resize  https://review.openstack.org/52722802:50
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openstackgerritMatt Riedemann proposed openstack/nova master: Change RPC for select_destinations()  https://review.openstack.org/51670703:08
openstackgerritMatt Riedemann proposed openstack/nova master: Move the claim_resources method to scheduler utils  https://review.openstack.org/51135703:08
openstackgerritMatt Riedemann proposed openstack/nova master: Make conductor pass and use host_lists  https://review.openstack.org/51135803:08
openstackgerritMatt Riedemann proposed openstack/nova master: Change compute RPC to use alternates for resize  https://review.openstack.org/52643603:08
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openstackgerritTakashi NATSUME proposed openstack/nova master: api-ref: Fix a description for 'guest_format'  https://review.openstack.org/52592804:53
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openstackgerritTakashi NATSUME proposed openstack/nova master: Add a warning in 'nova-manage cell_v2 delete_cell'  https://review.openstack.org/51377104:54
openstackgerritTakashi NATSUME proposed openstack/nova master: Fix the order of target host checks  https://review.openstack.org/52622504:55
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openstackgerritjichenjc proposed openstack/nova master: Remove 'nova-manage host' and 'nova-manage agent'  https://review.openstack.org/52183705:02
openstackgerritjichenjc proposed openstack/nova master: Remove 'nova-manage shell' command  https://review.openstack.org/52183505:02
openstackgerritjichenjc proposed openstack/nova master: deprecate fping_path config option  https://review.openstack.org/52660205:07
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openstackgerritTakashi NATSUME proposed openstack/nova master: [placement] Add sending global request ID in delete  https://review.openstack.org/52523105:11
openstackgerritjichenjc proposed openstack/nova master: Remove 'nova-manage shell' command  https://review.openstack.org/52183505:15
openstackgerritjichenjc proposed openstack/nova master: Remove 'nova-manage account' and 'nova-manage project'  https://review.openstack.org/52183305:15
openstackgerritjichenjc proposed openstack/nova master: Remove 'nova-manage logs' command  https://review.openstack.org/52213305:15
openstackgerritjichenjc proposed openstack/nova master: Remove 'nova-manage host' and 'nova-manage agent'  https://review.openstack.org/52183705:15
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openstackgerritjichenjc proposed openstack/nova master: Remove 'nova-manage logs' command  https://review.openstack.org/52213305:23
openstackgerritjichenjc proposed openstack/nova master: Remove 'nova-manage host' and 'nova-manage agent'  https://review.openstack.org/52183705:23
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openstackgerritjichenjc proposed openstack/nova master: Remove 'nova-manage logs' command  https://review.openstack.org/52213305:28
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openstackgerritTakashi NATSUME proposed openstack/nova master: [placement] Add sending global request ID in delete (2)  https://review.openstack.org/52626306:08
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openstackgerritTakashi NATSUME proposed openstack/nova master: [placement] Add sending global request ID in delete (3)  https://review.openstack.org/52655706:10
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openstackgerritTakashi NATSUME proposed openstack/nova master: [placement] Add sending global request ID in post  https://review.openstack.org/52682306:10
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openstackgerritAmeed Ashour proposed openstack/nova master: change instance_system_metadata column type  https://review.openstack.org/52690006:30
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openstackgerritjichenjc proposed openstack/nova master: Remove 'nova-manage host' and 'nova-manage agent'  https://review.openstack.org/52183707:03
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openstackgerritjichenjc proposed openstack/nova master: z/VM Driver: Initial change set of z/VM driver  https://review.openstack.org/52338707:25
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hiro-kobayashiHello. Could anyone tell me how to enable affinity/anti-affinity filter in Cells v2 deployment? According to the release note, upcalls from the computes to the scheduler cannot occur since Pike. So, affinity/anti-affinity cannot used since Pike?08:00
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openstackgerritHuang Rui proposed openstack/nova master: z/VM Driver: Initial change set of z/VM driver  https://review.openstack.org/52338708:04
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openstackgerritRadoslav Gerganov proposed openstack/nova master: VMware: fix memory stats  https://review.openstack.org/51663408:12
openstackgerritRadoslav Gerganov proposed openstack/nova master: VMware: expose max vCPUs and max memory per ESX host  https://review.openstack.org/51663508:12
openstackgerritRadoslav Gerganov proposed openstack/nova master: VMware: implement get_inventory() driver method  https://review.openstack.org/50617508:12
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openstackgerritAmeed Ashour proposed openstack/nova master: change instance_system_metadata column type  https://review.openstack.org/52690008:28
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-openstackstatus- NOTICE: Our CI system Zuul is currently not accessible. Wait with approving changes and rechecks until it's back online. Currently waiting for an admin to investigate.08:48
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openstackgerritAmeed Ashour proposed openstack/nova master: change instance_system_metadata column type  https://review.openstack.org/52690008:51
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-openstackstatus- NOTICE: Zuul is back online, looks like a temporary network problem.09:08
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openstackgerritAmeed Ashour proposed openstack/nova master: change instance_system_metadata column type  https://review.openstack.org/52690010:27
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JV_Hi, i have encountered an issue with nova and the iptables service, can anyone assist me on this?10:43
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kashyapJV__: For such questions it's probably best to ask on the users list10:54
kashyapOr the general #openstack10:55
JV__ok thx10:55
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niraj_singhhi all11:47
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niraj_singhi am getting this error after restarting nova compute. http://paste.openstack.org/show/628711/ ? Any idea?11:48
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cdentniraj_singh: what release is that? It looks like you got a bad response from the placement api, you'll want to look in the logs for it to see what that was11:53
cdentah, sorry, I see the error at the top now11:54
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cdentniraj_singh: you're nova-compute has restarted into a new version, but the placement server has not. you need to restart the placement server first11:54
cdents/you're/your/11:55
cdent"Invalid microversion: Unacceptable version header: 1.14", "max_version": "1.13""11:55
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niraj_singhhow to restart placement server? I haven't used it before.11:56
niraj_singhcdent: how to restart placement server? I haven't used it before.11:56
cdentniraj_singh: how did you install/deploy your openstack? is this devstack?11:56
niraj_singhcdent: yes devstack11:57
cdenttry "sudo systemctl restart devstack@placement-api"11:57
cdentand if that doesn't work try doing a 'stop' and then a 'start'11:58
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niraj_singhcdent: it is working now. Thank you.11:59
cdentyay!11:59
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kashyapcdent: /me appreciates the move to `systemd`; in the past it would've been a clunky: "re-attach the 'screen' sesion, kill the process & re-start it again"12:13
cdentkashyap: yeah, I agree. And the fact that you can do wildcards is nice12:14
kashyapTrue12:14
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openstackgerritLee Yarwood proposed openstack/nova master: conf: Do not inherit image signature props with snapshots  https://review.openstack.org/52704612:33
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openstackgerritLee Yarwood proposed openstack/nova master: conf: Do not inherit image signature props with snapshots  https://review.openstack.org/52704612:39
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openstackgerritMatthew Booth proposed openstack/nova master: Make BlockDeviceMapping object support uuid  https://review.openstack.org/24260312:56
openstackgerritMatthew Booth proposed openstack/nova master: Add an online migration for BDM.uuid  https://review.openstack.org/52559912:56
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openstackgerritBalazs Gibizer proposed openstack/nova master: Add late server group policy check to rebuild  https://review.openstack.org/52524213:17
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openstackgerritBalazs Gibizer proposed openstack/nova master: Add regression test for bug 1735407  https://review.openstack.org/52609513:22
openstackbug 1735407 in OpenStack Compute (nova) "[Nova] Evacuation doesn't respect anti-affinity rules" [Medium,In progress] https://launchpad.net/bugs/1735407 - Assigned to Balazs Gibizer (balazs-gibizer)13:22
openstackgerritBalazs Gibizer proposed openstack/nova master: Add late server group policy check to rebuild  https://review.openstack.org/52524213:22
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openstackgerritgaryk proposed openstack/nova master: Conductor: ensure build cleanup works with cells  https://review.openstack.org/52635613:41
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openstackgerritGhanshyam Mann proposed openstack/nova master: Add server filters whitelist in server api-ref  https://review.openstack.org/52704213:54
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cdentI rebase this a while ago, and thus it's on my radar. Seems a useful fix: https://review.openstack.org/#/c/389798/14:09
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openstackgerritMatt Riedemann proposed openstack/nova master: Deprecate file injection  https://review.openstack.org/52202714:22
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openstackgerritLee Yarwood proposed openstack/nova master: conf: Do not inherit image signature props with snapshots  https://review.openstack.org/52704614:36
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-openstackstatus- NOTICE: We're currently seeing an elevated rate of timeouts in jobs and the zuulv3.openstack.org dashboard is intermittently unresponsive, please stand by while we troubleshoot the issues.14:39
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mriedemoomichi_afk: can you take a look through this bp series starting here? https://review.openstack.org/#/c/524047/14:51
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cdentjaypipes: big +1 on your recent "need to fully isolate" comment in email15:05
jaypipescdent: oh, you mean the MANO/NFVO environment?15:06
cdentya15:06
jaypipescdent: ya.15:06
* jaypipes goes back to reviewing cdent's cache control headers patch :)15:06
cdentcouple more ya yas and we've got a song15:06
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openstackgerritMatt Riedemann proposed openstack/nova master: doc: add note about fixing admin-only APIs without a microversion  https://review.openstack.org/52742115:08
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openstackgerritMatt Riedemann proposed openstack/nova stable/pike: Re-use existing ComputeNode on ironic rebalance  https://review.openstack.org/52742315:11
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mriedemlyarwood: heads up - we have a 2 bug fixes for newton still before EOL - they are just waiting on review for their ocata counterparts https://review.openstack.org/#/q/status:open+project:openstack/nova+branch:stable/newton15:23
mriedemthe master and pike changes have all merged15:24
lyarwoodmriedem: ack, planning to spend some time on stable later today15:24
mriedemok those guys are probably highest priority now so we can eol newton15:24
lyarwoodkk15:25
mriedemkind of surprised tony hasn't yelled at me yet15:25
mriedemmelwitt: this fixes an issue with the new volume attachment flow that is blocking trove CI https://review.openstack.org/#/c/527228/ - i'm going to work on beefing up test coverage in tempest since we missed this15:28
mriedemwe == me15:28
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jaypipescdent: reviewed.15:36
cdentthanks jay, I think I didn't make the comment in the about why inventories clear enough, will fix that when I fix the rest of it15:38
jaypipescdent: so you meant inventories and not allocation candidates?15:38
cdentbasic gist is: inventories doesn't do the optimization of _avoiding_ checking last modified15:38
jaypipescdent: cuz alloc candidates is the one you always set to current time...15:38
cdentwhen the want_version is too low15:38
jaypipesah15:38
jaypipesk15:38
jaypipeseither way, that wasn't the -1 cause :)15:38
cdentyeah, I gathered that15:39
jaypipesjust the gabbit microversion dance :)15:39
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smatzekmriedem: I've gotten pretty close to root cause of Trove's other volume related gate breakage.  As I suspected yesterday it's not really related to rebuild even though that's the main Nova call Trove is doing there.  It looks like a behavior change in regular volume attach.  Details documented in bug https://bugs.launchpad.net/nova/+bug/173777915:47
openstackLaunchpad bug 1737779 in OpenStack Compute (nova) "Volume attach sets mountpoint as /dev/na in Cinder attachment" [Undecided,New]15:47
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cdentjaypipes: I responded on the AttributeError question, I think it's right as is.15:48
jaypipesack15:48
openstackgerritBalazs Gibizer proposed openstack/nova master: Stabilize test_live_migration_abort func test  https://review.openstack.org/52744015:51
ildikovsmatzek: thanks for the detailed bug report!15:51
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openstackgerritChris Dent proposed openstack/nova master: [placement] Add cache headers to placement api requests  https://review.openstack.org/52164015:53
openstackgerritChris Dent proposed openstack/nova master: [placement] Add info about last-modified to contrib docs  https://review.openstack.org/52608415:53
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cdentjaypipes: with luck that ^ gets it. The expected follow to do the unit tests Takashi asked for is on my list for this week.15:54
mriedemildikov: smatzek: i wonder if that's what this was for https://review.openstack.org/#/c/525787/3/nova/virt/block_device.py@448 ?15:55
jaypipescdent: k.15:56
mriedemsmatzek: i'll push a patch to add that back in so we can see if trove ci is happy with it15:56
mriedemsmatzek: is this recreatable in trove ci or are you testing it manually?15:57
smatzektrove CI.15:57
mriedemok good15:57
ildikovmriedem: yeah, that would make a lot of sense15:57
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ildikovmriedem: I thought we didn't remove that finally, mistake on my side15:59
smatzekis the connector an object or a dict?15:59
mriedemsmatzek: dict15:59
smatzekon the cinder side it's doing a .get('mountpoint') on the connector, so I'm not sure mount_device in the connector on the Nova side would help unless there is some key translation16:00
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jaypipescdent: +W16:01
melwittmriedem: ack, will take a look16:01
cdentjaypipes: rad16:01
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cdentonly one more microversion conflict to go!16:02
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jaypipescdent: :)16:03
jaypipescdent: I know the feeling very well.16:03
openstackgerritBalazs Gibizer proposed openstack/nova master: Wait for live_migration_rollback.start notification  https://review.openstack.org/52744416:03
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openstackgerritMatt Riedemann proposed openstack/nova master: Pass bdms to versioned notifications during finish_revert_resize  https://review.openstack.org/52744616:07
mriedemsmatzek: where are you seeing that in the cinder code?16:08
smatzekhttps://github.com/openstack/cinder/blob/master/cinder/volume/manager.py#L439616:09
mriedemok that makes sense - with the old flow, we'd pass mountpoint to the os-attach API16:10
mriedemand it looks like attachment_update needs the same thing16:10
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mriedemeh which sucks now because i have to handle attachment_update in multiple places16:10
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ildikovmriedem: can't we handle that centrally somehow?16:13
mriedemi plan on adding a mountpoint kwarg to the attachment_update method and passing in self['mount_device'] from the DriverVolumeBlockDevice code (normal attach, bfv) and from the resize code16:14
mriedemfrom the resize code, the mountpoint is i think just the bdm.device_name16:14
ildikovmriedem: how did it work with the old flow?16:15
mriedembut...the 'mount_device' in the driver block device code is after the blockinfo stuff has massaged the device_name, so i'm not sure if they will actually be the same thing16:15
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mriedemwith the old flow, during resize, we didn't call attach again16:15
jaypipesdansmith, mriedem: do we not have any functional tests for db schema migrations against MySQL in the gate?16:16
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mriedemjaypipes: the walk_migrations tests should run through mysql and postgresql16:16
mriedemin the python unit test jobs16:16
jaypipesthat's what I thought too...16:17
ildikovmriedem: ah ok, we passed it in the volume_api.attach() call16:17
mriedemhttp://logs.openstack.org/87/525787/4/check/openstack-tox-py27/5a1b999/job-output.txt.gz#_2017-12-08_14_36_36_83135616:17
mriedemjaypipes: ^16:17
mriedemildikov: yes16:17
mriedemand for resize old flow we don't call block_device.attach() again16:17
mriedemwe just use init_connection and terminate_connection16:17
mriedemwith the new flow, we're doing attachment_updates now16:18
mriedemactually we should be ok just pulling the bdm.device_name during resize https://review.openstack.org/#/c/525787/3/nova/virt/block_device.py@24616:19
mriedembecause the driver block device code uses that16:19
mriedemhttps://review.openstack.org/#/c/525787/3/nova/virt/block_device.py@40816:19
ildikovmriedem: yeah, I was just wondering whether we could have it updated and stored with the connector16:19
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ildikovmriedem: but can just use it from the BDM too, maybe less confusing that way16:19
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mriedemthe connector is per host16:20
mriedemthe mountpoint is per volume16:20
mriedemso doesn't really work that way16:20
mriedemso, actually, it's really confusing that the attachment_update API expects the mountpoint in the connector dict rather than a top-level parameter on the PUT /attachments/{id}/ call itself16:20
mriedemjgriffith: ^16:20
mriedemthat seems like a bug in the API16:20
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ildikovI think it's because we're handling and saving things now per attachment16:20
mriedembut of course is a microversion to fix16:21
mriedemsure, it should still be a top-level field on the attachment though16:21
mriedemnot hidden down in the nebulous connector dict16:21
ildikovit might've been intentional, but if it needs to be fixed we can do that with the microversion of course16:21
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mriedemwe can workaround it for now16:23
mriedemon the nova side16:23
mriedemi added cinder to https://bugs.launchpad.net/cinder/+bug/1737779 with the explanation of the cinder API issue16:23
openstackLaunchpad bug 1737779 in OpenStack Compute (nova) "Volume attach sets mountpoint as /dev/na in Cinder attachment" [High,Triaged] - Assigned to Matt Riedemann (mriedem)16:23
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ildikovmriedem: ok, thanks, I will try to reach jgriffith and see what to do with this longer term16:26
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mriedemmelwitt: fyi i'll have to update that patch for the resize thing, i'll need to rebase it on the fix for bug 173777917:00
openstackbug 1737779 in OpenStack Compute (nova) "Volume attach sets mountpoint as /dev/na in Cinder attachment" [High,Triaged] https://launchpad.net/bugs/1737779 - Assigned to Matt Riedemann (mriedem)17:00
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melwittmriedem: k17:01
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openstackgerritMatt Riedemann proposed openstack/nova master: Update and complete volume attachments during resize  https://review.openstack.org/52722817:23
openstackgerritMatt Riedemann proposed openstack/nova master: Pass bdms to versioned notifications during finish_revert_resize  https://review.openstack.org/52744617:23
openstackgerritMatt Riedemann proposed openstack/nova master: Pass mountpoint to volume attachment_update  https://review.openstack.org/52746817:23
mriedemildikov: smatzek: melwitt: ^ passing mountpoint to attachment_update now - note that i also need to do the same for attachment_create during live migration when we create the attachment with the connector, but i'm going to handle that in a separate patch17:23
mriedemfor review sanity17:23
mriedemhttps://github.com/openstack/nova/blob/32c8ac6b7dfe4ca0c211cbce7c5a67d88558126f/nova/compute/manager.py#L5786-L579017:23
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mriedemsmatzek: should just be able to recheck that same trove ci test patch from yesterday17:26
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smatzekmriedem: thanks, but I should add a depends-on for the review above as well, correct?17:28
mriedemnot necessary17:28
mriedemyou have a depends-on the patch above it17:28
mriedemso it'll pull in the series17:29
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openstackgerritStephen Finucane proposed openstack/nova master: objects: Add PCI NUMA policy fields  https://review.openstack.org/52747017:30
openstackgerritStephen Finucane proposed openstack/nova master: trivial: Pass InstanceNUMATopology to consume_request  https://review.openstack.org/52747117:30
openstackgerritStephen Finucane proposed openstack/nova master: Add PCI NUMA policies  https://review.openstack.org/52747217:30
openstackgerritStephen Finucane proposed openstack/nova master: trivial: Modify signature of _filter_non_requested_pfs  https://review.openstack.org/52747317:30
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stephenfinjaypipes: I've gone and broken that PCI NUMA policy patch into smaller components so it should be easier to review. Hopefully it helps somewhat17:32
* stephenfin wishes moshele was about too :/17:32
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ildikovmriedem: the series looks good for the first glance, hopefully tests will confirm as well17:39
ildikovmriedem: thanks17:39
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mriedemstephenfin: replied in https://review.openstack.org/#/c/526329/17:40
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mriedemstephenfin: seems you can make that work for both old and new glanceclient so it could be backported17:40
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melwittmriedem: so what would be in the new cinder microversion in the future? cinder handling mountpoint automatically?17:41
mriedemmelwitt: no, make it a top-level field on the attachment resource17:41
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melwittokay17:41
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mriedemso PUT /attachments/{id}/ with a body that has {'mountpoint': '/dev/vdb', ...}17:42
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smcginnismriedem: Why does that need to change?17:42
mriedemthe connector dict is host detail stuff from brick17:42
mriedemsmcginnis: see https://review.openstack.org/52746817:42
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mriedemit doesn't *have* to change, but it's really clunky API behavior the way it is17:43
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openstackgerritMatt Riedemann proposed openstack/nova master: Pass mountpoint to volume attachment_create with connector  https://review.openstack.org/52747917:45
mriedemand ^17:45
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dansmithgibi: are you planning to hit this? https://review.openstack.org/#/c/517119/17:47
dansmithaside from the comment jaypipes is going to add, it looks okay to me, but I'm admittedly glossing over a lot of the database details17:47
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openstackgerritMatt Riedemann proposed openstack/nova master: Pass mountpoint to volume attachment_update  https://review.openstack.org/52746817:51
openstackgerritMatt Riedemann proposed openstack/nova master: Update and complete volume attachments during resize  https://review.openstack.org/52722817:51
openstackgerritMatt Riedemann proposed openstack/nova master: Pass bdms to versioned notifications during finish_revert_resize  https://review.openstack.org/52744617:51
openstackgerritMatt Riedemann proposed openstack/nova master: Pass mountpoint to volume attachment_create with connector  https://review.openstack.org/52747917:51
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jaypipesdansmith: I already added my comment.17:55
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dansmithjaypipes: not that I see17:56
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jaypipesdansmith: it's inline in https://review.openstack.org/#/c/517119/17/nova/objects/resource_provider.py17:56
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dansmithjaypipes: your last comment on that patch asks if you can just add a note to satisfy the concern.. doesn't that mean you're going to respin and, you know, add a note?17:58
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dansmithL311117:58
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jaypipesdansmith: heh, sorry, I thought you were referring to my review comment as "the comment jaypipes is going to add". lol, sorry17:59
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dansmith...no :)18:00
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jaypipesdansmith: I understand ya now. I havent' updated the series yet because I already recheck'd a couple in the series and didn't want to needlessly reset the gates for a small thing like that18:00
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dansmithI think the gate is fairly toast at the moment.. it's failing most status calls for me at least18:01
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openstackgerritMatt Riedemann proposed openstack/nova master: Remove unnecessary connector stash in attachment_update  https://review.openstack.org/52748418:02
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melwittmriedem: patches look good to me, just waiting on test results. added a comment on the top patch about using a helper function18:02
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mriedemyeah i thought about that, but figured i'd do a refactor later on top if i'm going to do one18:03
mriedemtest results will probably be a few days coming...18:03
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mriedemi will kill some time with lunch18:03
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jgriffithmriedem: not sure why that's confusing?18:05
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jgriffithmriedem: added notes/questions to the bug report18:12
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cdentdansmith: do you have any feelings, pro or con, on starting to use the new POST /allocations functionality? now or rocky?18:24
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dansmithcdent: which new post behavior? the atomic multiple thing?18:26
cdentaye18:26
dansmithwhy would we wait?18:26
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cdentmostly because of coding and reviewing bandwidth, I guess?18:27
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dansmithcdent: well, we have a race right now, so I'd tend to think we should be fixing that and not delaying longer than necessary18:28
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cdentfine by me18:29
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cdentpersistent18:30
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cburgessdansmith: Random object question for you if you are around.18:32
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dansmithcburgess: random object answer readied18:32
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cburgessdansmith Let me make a gist.. that will be simpler to show you.18:32
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cburgessdansmith I have found a script someone wrote (lets not ask to many question) that does something like the following... https://gist.github.com/cburgess/bbedb9038a79e8dfc92375b383b1fc4a18:36
dansmithuhm, okay18:37
cburgessSo they are importing the objects directly. My question is... is that going direct to the DB, or making a call to conductor in this case?18:37
ildikovmelwitt: is your question on shelve offload about the case when we shelve an instance with volume attached?18:37
dansmithcburgess: this is the magic that causes object operations to go via some other service (i.e. conductor): https://github.com/openstack/nova/blob/master/nova/cmd/compute.py#L5618:38
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dansmithcburgess: without that, they always default to direct18:38
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cburgessWhere direct = DB?18:38
dansmithcburgess: yes18:38
cburgessdansmith I'm going to go cry in the corner now. Thank you.18:38
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dansmithcburgess: uh, why? you wanted via conductor?18:39
cburgessdansmith Well conductor would be better then the DB yes. Though they shouldn't be loading the objects directly like that. They should be using the API.18:39
melwittildikov: yes, I think so. it's not really related to that patch but something I noticed during review18:39
dansmithcburgess: why would conductor be better? you'd have to setup all the rpc stuff to do that thing18:40
cburgessdansmith As in this isn't code in nova some place. This is something entirely external to nova that wants some data and its choosing to do so loading the objects directly.18:40
dansmithcburgess: but agree, if you can get it efficiently from the api that's better18:40
ildikovmelwitt: this is how it looks like for attaching a volume to a shelved offloaded instance: https://github.com/openstack/nova/blob/master/nova/compute/api.py#L372018:40
cburgessdansmith My real issue is they should not be loading the objects at all. That needs to be via the API. Clients of the cloud don't get to load internal object code and muck about in the DB. They should talk to the API.18:41
dansmithcburgess: ack, you're crying because someone who is paying you money is doing a scary thing and you have to figure out how to fix that and keep getting paid, is that right?18:41
ildikovmelwitt: we call attachment_create as part of the check_attach_and_reserve_volume call and in addition we call attachment_complete in _attach_volume_shelved_offloaded to put the volume to 'in-use'18:41
dansmithcburgess: ack, yes18:41
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cburgessdansmith Something like that.18:41
dansmithcburgess: just wanted to make sure you weren't complaining that my objects don't default to rpc or something :P18:42
ildikovmelwitt: it's honestly a workaround for now as the volume would be perfectly fine in 'reserved' state, but that's not how the old flow worked, so changing that needs an API microversion18:42
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cburgessdansmith Nope I love you objects, and the conductor.18:42
dansmithhah18:42
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ildikovmelwitt: when we do the offload the part when we call attachment_create is correct as attachment_delete detaches the volume completely18:43
ildikovmelwitt: what I'm unsure at the moment is whether we call attachment_complete in that case as well18:43
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melwittildikov: what I mean is, when we go to shelve an instance, we detach the volume. but with that recent change it's not only deleting the attachment, it creates a new attachment. which I didn't think we would want while an instance is shelved-offloaded18:43
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melwittoh really? so we want to keep an attachment (create a new one) while shelve offloaded?18:44
mriedemmelwitt: yes,18:44
mriedemthat keeps the volume reserved18:44
ildikovmelwitt: but with shelve the old flow only removes the connection on the host but the volume is still appearing to be attached to that instance on the Cinder side18:44
mriedemwhile the instance is shelved18:44
melwittokay, good then. sorry for the noise18:45
mriedemthe empty vol attachment keeps the volume reserved but that vol attachment isn't actually connected to any host18:45
ildikovmelwitt: so when you call attachment_delete in terminate_connections that moves to volume back to 'available'18:45
mriedemunless there is another attachment on the volume already18:45
ildikovmriedem: do we call attachment_complete in every bit of shelve, where we need to?18:45
mriedemonce the attachment count is 0, then the volume is 'available' again18:45
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mriedemildikov: you mean unshelve?18:46
mriedemildikov: yes via https://github.com/openstack/nova/blob/master/nova/compute/manager.py#L478318:46
mriedemsame as normal server create18:46
mriedemhappens down in the DriverVolumeBlockDevice.attach magic cauldron18:46
mriedemmagic cauldron of attachitude18:47
mriedemhenceforth shall it be known18:47
ildikovmriedem: I meant whether we have actions as shelve and attaching a volume to a shelved instance and which call inside the Nova code covers these18:47
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ildikovmriedem: as we want the volume to be 'in-use' with the new flow as well so we added the additional attachment_complete call18:47
mriedemattaching to a shelved offloaded instance happens in the api and we complete the attachment there too as you pointed out18:48
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mriedemremember that we can complete an empty attachment,18:48
mriedemand update a completed attachment18:48
mriedemweird as that may be18:48
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mriedemthat's why unshelve works18:48
mriedem*that's why unshelve works for the case that the volume is attached while the instance is shelved offloaded18:49
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ildikovmriedem: I understand that part18:51
ildikovmriedem: I was just wondering whether we do all the steps when we shelve offload an instance wit volume attached18:52
ildikovas I guess we can do that too18:52
ildikovwhich might be the same set of calls under the hood, just wanted to double check after melwitt's confusion :)18:52
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mriedemyes, _prep_block_device happens it18:54
mriedemon unshelve18:54
mriedem*handles18:54
ildikovok, cool18:56
ildikovthanks18:56
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mriedemsdague: where is the code for your api-ref burndown chart19:04
mriedem?19:04
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mriedemhttps://github.com/sdague/rst-burndown ?19:04
cdentmriedem: gibi's sort of fork is at https://github.com/gibizer/nova-versioned-notification-transformation-burndown19:05
mriedemyup, just found that too19:05
sdaguemriedem: yeh19:05
mriedemmrhillsman is looking for something similar for sdk gap burndown19:05
cdentI've got some totally 100% non-fancy infrastructure in place to run that stuff for gibi, if mrhillsman wants to get in on that: http://burndown.peermore.com/nova-notification/19:06
cdentit runs a cron job to update itself19:06
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mriedemi'll pass that on thanks19:06
cdentbut presumably if this is for openlap, they've already got such stuff19:06
cdentopenlap, hmmm19:06
cdentif that's not already started, probably ought to be19:07
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mriedemyeah i'm assuming he can host it himself19:07
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mriedemer yeah http://openlabtesting.org/19:08
cdenteven comes with uml19:09
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mriedemdansmith: want to check out the first 2 changes in the alternate hosts series here? https://review.openstack.org/#/c/516707/ - just needs final +219:30
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dansmithokay in a bit19:30
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mriedemfor anyone that cares, the instance action paging series is also ready to go i think https://review.openstack.org/#/q/topic:bp/pagination-add-changes-since-for-instance-action-list+status:open19:39
mriedemi've started moving fully complete series up to the top of https://etherpad.openstack.org/p/nova-queens-blueprint-status19:39
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-openstackstatus- NOTICE: The zuul scheduler has been restarted after lengthy troubleshooting for a memory consumption issue; earlier changes have been reenqueued but if you notice jobs not running for a new or approved change you may want to leave a recheck comment or a new approval vote20:15
openstackgerritMatt Riedemann proposed openstack/nova master: [WIP] POC to use neutron port_list when filtering instance by ip  https://review.openstack.org/52550520:15
openstackgerritMichael Still proposed openstack/nova master: Convert ext filesystem resizes to privsep.  https://review.openstack.org/51751620:18
openstackgerritMichael Still proposed openstack/nova master: Move flushing block devices to privsep.  https://review.openstack.org/51901020:18
openstackgerritMichael Still proposed openstack/nova master: Start moving users of parted to privsep.  https://review.openstack.org/51901120:18
openstackgerritMichael Still proposed openstack/nova master: Move remaining uses of parted to privsep.  https://review.openstack.org/51948320:18
openstackgerritMichael Still proposed openstack/nova master: Convert users of tune2fs to privsep.  https://review.openstack.org/51948420:18
openstackgerritMichael Still proposed openstack/nova master: Move makefs to privsep  https://review.openstack.org/52751020:18
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mnaserthrowing this up for discussion - how would folks feel if image caching used the imagebackend instead of just it's own cache20:51
mnaserit would be beneficial for scenarios when you have a qcow2 image stored, with ceph backend for example, avoiding the import and convert on every iteration20:52
mnaseranother interesting scenario is multiple cells with independent ceph clusters (thereby, image is not directly accessible to do a cow new image)20:53
mnaser(we're going to use cells v2 to add another az in an entirely different physical facility with a 10g link between them, fun times ahead :>)20:53
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melwittmnaser: if you're using ceph and its native qcow2 format, you will be using glance images of type RAW and will get fast-clone and no image conversions, right?20:56
melwittthat is, what do you mean by 'import and convert'?20:56
mnasermelwitt: ceph with images stored in raw will get fast clone20:56
mnasermelwitt: so - current scenario - images stored in raw in `images` pool in ceph, vm disks stored in `vms` pool in ceph.  when nova boots a new vm, it can access `images` directly so it does a fast-clone and you get a disk very quickly20:57
mnasermelwitt: if the image format is qcow2, ceph wont be able to do fast clone.  nova will pull the image down locally, convert it to raw, and upload/import it back to ceph, then boot the machine20:58
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melwittright20:58
mnasermelwitt: now in an env where you have 2 cells, each one has a ceph cluster of its own, cell A which uses the same ceph cluster as glance can do fast clone.  cell B will check the location and realize it has no way to reach that ceph cluster, so it will download the raw image locally and import/upload it to ceph20:59
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mnaserand for every new VM, it will do this (obviously leveraging local image cache), but that can be a lot of traffic before an image gets cached20:59
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mnasermy two ideas to work this around is... a) use the multiple locations feature of glance to mirror the images and add an rbd location in both clusters (nova loops over all locations till it finds one, then falls back to download)21:00
melwittfrom the ceph docs "Important Ceph doesn’t support QCOW2 for hosting a virtual machine disk. Thus if you want to boot virtual machines in Ceph (ephemeral backend or boot from volume), the Glance image format must be RAW." http://docs.ceph.com/docs/master/rbd/rbd-openstack/21:00
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melwittthe cells thing is different though, and something to think about21:01
mnaseror b) refactor image cache to use the image backend so that images can be cached in the ceph cluster, avoiding multiple downloads21:01
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mnasermelwitt: let me check the code, i am fairly confident qcow2 images will be downloaded by nova and converted before being imported.  *me checks*21:01
melwitthow does b) help if each cell is using an independent ceph?21:02
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melwittmnaser: they are, it's just the ceph docs say they don't support qcow2 format21:02
mnasermelwitt: it will create a centralized cache so to speak, so an image is downloaded from cell A to cell B once only21:02
mnaserrather than being downloaded potenitally N times where N is the # of hypervisors21:03
mnaserpotentially*21:03
melwittokay, I'm just missing how it's centralized if each ceph is separate and can't find each other like you said21:03
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melwittif you configure things unlike the ceph docs instruct, then yes it will download and convert. that's probably why it says don't do that, use raw21:04
mnasermelwitt: okay, but if i use raw, it'll still download it across the network and cache it inside every hypervisor21:05
mnaserideally, i'd imagine it caching it inside the ceph cluster in cell B, so that it is downloaded once only, and nova can do fast clone21:05
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melwittso cache one copy per cell is what you're saying21:05
mnasercorrect21:05
mnaserso currently: cell B HVs downloads raw image from glance (which is in another location), caches it locally, imports to create disk21:06
mnaseridea: cell B HV downloads raw image from glance, stores it in ceph, fast-clone to create disk. further hypervisors would fast-clone that same image21:06
melwittokay. yeah, I guess I didn't know ceph images are cached on disk on hypervisors. I thought they just accessed the ceph pool each time21:06
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mnasermelwitt: generally they are not, but because the cell wouldnt be able to reach that cluster, it will fall back to plain o'l downloading image via http and importing it21:07
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mnaserand that can be a pretty big bottleneck as things scale21:07
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melwittthat seems reasonable to me, mdbooth is the imagebackend guru so he'd be the best person to run the idea by21:08
mnasermelwitt: just drumming up things to hear what it looks like.  this whole idea can be worked around by storing things twice in glance (it supports multiple image locations)21:09
mnaserbut then it would be a glance thing rather than nova (nova would just try all locations and find that one of them is in a ceph cluster it can access)21:10
mnaserit's been a fun little problem to think about21:10
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melwittyeah, good points. let me dig up our etherpad for the to-resolve things we've been keeping track of21:13
mnaserim sure ill run into plenty of other fun stuff as we'll use segments and routed networks too21:14
melwittI expect so too21:16
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melwittmriedem: what's the current multi-cells issues/todos/considerations etherpad we have?21:17
melwittI found https://etherpad.openstack.org/p/nova-pike-cells-v2-todos but wasn't sure if it's the latest thing21:17
mriedemthis? https://etherpad.openstack.org/p/cellsv1-to-v2-migration21:18
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mriedemi'm fairly sure https://etherpad.openstack.org/p/nova-pike-cells-v2-todos hasn't been touched in a long time21:18
mriedemso yeah https://etherpad.openstack.org/p/nova-pike-cells-v2-todos is probably the most recent since it was the running list of stuff for pike21:19
melwittokay, maybe I just assumed we had one. a place where we can track concerns from operators as we gather more problems to solve21:19
mriedemthere is also the old wiki page https://wiki.openstack.org/wiki/Nova-Cells-v221:20
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melwittokay, maybe I'll add it to Open Questions on the wiki so it doesn't get lost21:23
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openstackgerritMerged openstack/nova stable/pike: [placement] Fix foreign key constraint error  https://review.openstack.org/52562021:39
penickWe're doing the first Juno->Ocata upgrade right now.. :|21:41
melwittmnaser: wrote down the ideas here, feel free to edit/correct https://wiki.openstack.org/wiki/Nova-Cells-v2#Open_Questions21:42
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penickI'm sure it'll be fine. Heck, it worked in devstack.21:46
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melwittpenick: yall just now started?21:46
mriedempenick: are you going to live stream it on facebook for your aunt?21:46
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penickmelwitt: well we started a bit earlier. We were scheduled to start at 10. So was a fire drill, apparently..21:47
penickmriedem: My aunt? Which one? And why?21:47
mriedembecause i thought live stream,21:47
mriedemand then i thought facebook,21:48
mriedemand then i thought, who would like to watch that on facebook - someone's aunt21:48
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mriedembecause that's what i associate with facebook21:48
* penick follows mriedem's autocomplete logic21:48
penickthat actually parses21:48
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melwittyou can live-tweet it21:48
penicktweet 1: We've started!21:48
mriedemaunt sheryl isn't on the twitters yet21:48
penickTweet 37: everything's fucked21:48
penickI now have a new interview question.. "Describe a data structure most appropriate for simulating mriedem's brain. Here's a pen. Godspeed."21:49
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penickMy aunt Lisa is on twitter, she mostly uses it to insult political figures. I respect that.21:50
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penickif we live tweeted the process we could mine it later to make a how-to guide21:51
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melwittyou should definitely record what you've done if you want to do that first draft of the ops guide for fast-forward-upgrade21:52
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openstackgerritmelanie witt proposed openstack/nova master: Add access_url_base to console_auth_tokens table  https://review.openstack.org/33461421:53
openstackgerritmelanie witt proposed openstack/nova master: Add console_auth_token_get() method to DB API  https://review.openstack.org/48170021:53
openstackgerritmelanie witt proposed openstack/nova master: Add console connection object  https://review.openstack.org/32006321:53
openstackgerritmelanie witt proposed openstack/nova master: Add periodic task to clean expired console tokens  https://review.openstack.org/32538121:53
openstackgerritmelanie witt proposed openstack/nova master: Use ConsoleConnection object to generate authorizations  https://review.openstack.org/32541421:53
openstackgerritmelanie witt proposed openstack/nova master: Convert websocketproxy to use db for token validation  https://review.openstack.org/33399021:53
dimsgodspeed penick !21:53
penickdims thanks! :)21:53
openstackgerritMatt Riedemann proposed openstack/nova master: Add log in conductor to mark host for instance creation  https://review.openstack.org/52036921:53
penickmelwitt: Yep21:55
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jrollI like this new interview question22:00
melwittit's jroll! o/22:00
jroll\o :)22:01
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dimshey jroll !22:02
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openstackgerritMerged openstack/nova master: remove reserve_quota_delta  https://review.openstack.org/52146922:06
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openstackgerritMerged openstack/nova stable/ocata: Skip test_rebuild_server_in_error_state for cells v1  https://review.openstack.org/49635922:08
jrollhiya dims22:08
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mriedemjaypipes: so with the in_tree filter,22:20
mriedemis the value for that a parent provider?22:20
mriedemlike, leaf nodes would always return an empty list?22:20
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mriedemif if i have parent A and children B and C, if i query for in_tree=C, do i get B because it's in the "same tree"?22:22
jaypipesmriedem: the value is the UUID of any resource provider. the returned results are all providers in that provider's tree. you can provider a child, a root, a grandchild, it doesn't matter.22:22
mriedemok that wasn't clear to me from the api ref description, "A UUID of a resource provider. The returned resource providers will be in the same “provider tree” as the specified provider." and looking at the tests used in https://review.openstack.org/#/c/521097/22:23
jaypipesmriedem: the tests specifically show that behaviour.22:23
jaypipesmriedem: you can specify the child, the root or the grandchild as the in_tree parameter value and all the providers in the tree will be returned.22:24
mriedemsorry i mean https://review.openstack.org/#/c/520663/922:24
mriedemhttps://review.openstack.org/#/c/520663/9/nova/tests/functional/api/openstack/placement/test_report_client.py22:24
mriedemthat's not a parent/child relationship so it wasn't clear to me22:24
jaypipesmriedem: oh, yeah, sorry, I didn't write that particular patch22:26
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jaypipesmriedem: eric is always passing the root (which happens to be the compute node UUID)22:26
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mriedemyeah see my questoin at https://review.openstack.org/#/c/520663/9/nova/tests/unit/scheduler/client/test_report.py22:27
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mriedemL140022:27
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mriedemwould probably be good to have a tree structure sample like that in the api ref description to explain the scenarios22:28
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mnasermelwitt: https://wiki.openstack.org/wiki/Nova-Cells-v2#Open_Questions appended the discussion re cellsv2+ceph+images22:42
mnaserthanks for putting it up there22:42
melwittmnaser: cool, thanks for adding to it. so, with my question I was wondering how does glance manage multiple locations then. AFAIK it can only connect to one ceph cluster at a time itself, but I'm pretty ignorant about glance22:43
openstackgerritJackie Truong proposed openstack/nova master: Implement certificate_utils  https://review.openstack.org/47994922:44
mnasermelwitt: thats a good question, i think in this context, the nova <=> glance interactions, glance wont really ever talk to ceph because its just supplying locations22:44
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mnasermelwitt: now when you delete an image with multiple locations, some which are not accessible, what's going to happen...22:45
mnaseranother fun item to the list lol22:45
melwittmnaser: I see. so the workflow for the admin would be, store image in ceph cluster A, call glance api to add it to the DB and point at location A, and repeat22:45
melwittI saw that glance stores ceph credentials (one set) so that's what I was thinking of with the question22:46
melwittin its conf file I mean22:46
mnaseryeah glance currently works with a single set of credentials, so the second location would manually be set (the API allows you up add/remove a location)22:46
melwittgot it22:46
mnaserso you can have some sort of cronjob that "replicates" stuff over across cluster but thats hacky and becomes confusing to the end user22:47
mnaserand as you brought up, operations in glance might fail like deletes (unless you remove the location manually then delete but thats no fun for useres)22:47
melwittright22:47
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mnaser(this macbook keyboard is driving me insane with this weird things where it types 2 characters of the same letter when clicking it :()22:48
melwittO.o22:48
mnaser(apple claimed it was a software bug.)22:49
melwittgeesh, that's annoying22:49
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openstackgerritMerged openstack/nova master: Remove direct usage of glance.generate_image_url  https://review.openstack.org/51139723:40
openstackgerritMatt Riedemann proposed openstack/nova master: WIP: Add nova-status check for ironic flavor migration  https://review.openstack.org/52754123:42
mriedemedleafe: jaypipes: dansmith: ^ finally got around to add a nova-status check for the ironic flavor migration stuff; needs tests but hopefully it does the thing we need23:42
mriedemi also specifically call out the need for some jaypipes join-fu23:42
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newOpenstacker@here need some help with nova APIs. If I do openstack server list --limit 1, I get 1 instance and then if I try openstack server list --limit 1 --marker <instance uuid>, I get same instance again23:55
newOpenstackerhas anyone seen this before?23:56
newOpenstackerThere is another issue on this setup. We have ~1800 instances. I tried nova list --all-tenants --limit 1000. If I follow the same pattern as mentioned earlier I end up with 2200 instances23:57

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