Wednesday, 2015-11-25

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openstackgerritZhenyu Zheng proposed openstack/nova: [WIP]Expose quiesce/unquiesce API  https://review.openstack.org/24898901:21
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openstackgerritAlex Xu proposed openstack/nova-specs: Make block_migration and host flags in live-migration API  https://review.openstack.org/24554301:54
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openstackgerritTang Chen proposed openstack/nova-specs: Support soft reboot and poweroff in nova ironic driver.  https://review.openstack.org/22928202:04
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openstackgerritBrian Rosmaita proposed openstack/nova-specs: Consistent Success Reporting  https://review.openstack.org/24824802:46
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openstackgerritYingxin Cheng proposed openstack/nova: Use stevedore for scheduler host manager  https://review.openstack.org/24647602:51
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openstackgerritli,chen proposed openstack/nova: Add unit tests for nova.virt.firewall.IpTablesFirewallDriver  https://review.openstack.org/24627403:30
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openstackgerritYingxin Cheng proposed openstack/nova: Cleanup unused test code in test_scheduler.py  https://review.openstack.org/24953603:36
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openstackgerritYingxin Cheng proposed openstack/nova: Cleanup unused test code in test_scheduler.py  https://review.openstack.org/24953604:04
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openstackgerrityuntongjin proposed openstack/nova-specs: report more live migration progress detail  https://review.openstack.org/24847204:48
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openstackgerritShaoHe Feng proposed openstack/nova-specs: report more live migration progress detail  https://review.openstack.org/24847204:52
openstackgerritShaoHe Feng proposed openstack/nova-specs: report more live migration progress detail  https://review.openstack.org/24847204:54
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openstackgerritAnkit Agrawal proposed openstack/nova: Pass bdm info to _get_instance_disk_info method  https://review.openstack.org/22116205:16
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openstackgerritChangBo Guo(gcb) proposed openstack/nova: Use version convert methods from oslo_utils.versionutils  https://review.openstack.org/20332205:27
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openstackgerritYingxin Cheng proposed openstack/nova: Use stevedore for scheduler host manager  https://review.openstack.org/24647606:01
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openstackgerritOpenStack Proposal Bot proposed openstack/nova: Imported Translations from Zanata  https://review.openstack.org/24272706:03
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openstackgerritsonu proposed openstack/nova: Replaces xrange() with six.moves.range() to provide py2/3 compatibility  https://review.openstack.org/20530706:06
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openstackgerritChangBo Guo(gcb) proposed openstack/nova: Fix wrong method name in doc filter_scheduler  https://review.openstack.org/22925006:09
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openstackgerritLuis Pabón proposed openstack/nova-specs: Attach/detach instance access from Manila shares  https://review.openstack.org/24958206:22
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openstackgerritLuis Pabón proposed openstack/nova-specs: Attach/detach instance access from Manila shares  https://review.openstack.org/24958206:26
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openstackgerritLuis Pabón proposed openstack/nova-specs: Attach/detach instance access from Manila shares  https://review.openstack.org/24958206:27
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shirleychenHi , anyone can help me review https://review.openstack.org/#/c/249184/ ? Thanks!06:39
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openstackgerritZhihai Song proposed openstack/python-novaclient: Change the logic for the client to retrive resources  https://review.openstack.org/24688106:57
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openstackgerritmelanie witt proposed openstack/nova: Add methods for RequestContext to switch db connection  https://review.openstack.org/16190607:09
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openstackgerritmelanie witt proposed openstack/python-novaclient: Fix repr of a host from a hosts.list()  https://review.openstack.org/24830008:02
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openstackgerritAlex Xu proposed openstack/nova: docs: update services description for concept guide  https://review.openstack.org/24845408:10
openstackgerritAlex Xu proposed openstack/nova: docs: remove duplicated section about error handling  https://review.openstack.org/24845508:10
openstackgerritAlex Xu proposed openstack/nova: docs: using the correct format and real world example for fault message  https://review.openstack.org/24846308:10
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openstackgerritJohn Hua proposed openstack/nova: xenapi: Support bare VHD image  https://review.openstack.org/24962708:15
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sudiptondipanov, hi, could you please take a look at this: https://review.openstack.org/#/c/245765/ when you have some time, i have replied to your comment.08:17
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openstackgerritAnusha rayani proposed openstack/python-novaclient: Nova volume-attach should also allow user to provide volume name for the input  https://review.openstack.org/24963408:43
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openstackgerritPaul Carlton proposed openstack/nova-specs: Cancel ongoing live migrations  https://review.openstack.org/22882808:54
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bauzasgood morning Nova09:00
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openstackgerritMan Li Qi proposed openstack/nova: VMware: Ensure all the disk files of VM could be deleted along with VM deletion  https://review.openstack.org/22828509:02
openstackgerrityuntongjin proposed openstack/nova-specs: support xbzrle compress for live migration  https://review.openstack.org/24846509:02
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openstackgerritZhang Ni proposed openstack/nova-specs: Add local-to-instance to create server api  https://review.openstack.org/24106609:13
openstackgerritjichenjc proposed openstack/nova: Remove useless header not need microversion  https://review.openstack.org/22415209:14
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openstackgerritJohn Garbutt proposed openstack/nova: docs: add clarifications to move servers  https://review.openstack.org/24932109:26
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openstackgerritJohn Garbutt proposed openstack/nova: docs: reorder move servers text  https://review.openstack.org/24933109:34
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baffleI have this strange issue (in Icehouse, but code seems mostly the same in master) where live migrations fail with "Disk of instance is too large(available on destination host:-3221225472 < need:12943097856)". Hypervisor disk size is 732G with 377G free. If I add up all local disk images (qemu-img info virtual size) I get 511G. I've set reserved space on host to 10G, and I set disk_allocation_ration to 1.5 just to see if that helped, but I assume th09:43
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baffleQuite a few instances use Ceph as well; Is that added on to disk usage?09:44
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openstackgerritjichenjc proposed openstack/python-novaclient: Not transform to str on potential unicode fields  https://review.openstack.org/24862609:55
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tangchen__Hi, guys, please help to review these two specs. I have updated them.09:59
tangchen__https://review.openstack.org/#/c/229255/09:59
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tangchen__https://review.openstack.org/#/c/229282/09:59
tangchen__Thanks.09:59
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openstackgerritZhiQiang Fan proposed openstack/nova: Use oslo_config new type PortOpt for port options  https://review.openstack.org/23834710:04
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openstackgerritJohn Hua proposed openstack/nova: xenapi: Support bare VHD image  https://review.openstack.org/24962710:06
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yglHi All10:16
yglcan anyone tell me the meaning of the fields 'used_now' and 'used_max' in the nova host-describe  command ?10:16
openstackgerritDaniel Berrange proposed openstack/nova-specs: Virtual guest device role tagging  https://review.openstack.org/19566210:17
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yglcan anyone tell me the meaning of the fields 'used_now' and 'used_max' in the nova host-describe  command ?10:19
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johnthetubaguyygl: I would have to dig in the code, but it sounds like the difference between reserved by the resource tracker, and what is currently in use?10:29
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johnthetubaguyygl: in theory, #openstack is the best place for usage questions, see topic.10:29
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baffleygl: I think used_max is minus reserved for host.10:30
baffleAt least that adds up with my nova.conf settings.10:30
yglbaffle: i need some clear description please10:30
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baffleused_max is same values as used_now minus what you have defined in reserved_host_disk_mb and reserved_host_memory_mb.10:32
yglwhat is used_now ?10:32
baffleI have no idea how used_now is calculated, because it certainly doesn't add up for me..10:32
yglbaffle: so u mean these figures are not quite right ?10:33
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baffleygl: Well. If you saw my problem above, I certainly doubt it. My hypervisor reports that I have 355G of 731G free via resource tracker. But used_now disk_gb reports 704G of 731G. I would assume it calculates this value based on virtal size of all qemu2 disk images, I.e. most of my images have a virtual size of 14G, but "on disk" size could be 3G. But if I add virtaul size of all my qemu2 images together, I get 511G, so I really don't understand whe10:37
yglok10:37
baffleygl: This stops me from live migrations to the host, and --disk-overcommit dones't seem to work as well.10:38
baffleygl: It'll happily spawn new instances on the host, tho'.10:38
yglok10:38
openstackgerritxiexs proposed openstack/python-novaclient: Improve flavor list to perform multi sort keys  https://review.openstack.org/24969710:38
baffleI'm *this* close to just force the function to report a fake value. :-)10:39
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bauzasygl: everything is there https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/hosts.py#L22210:40
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bauzascompared to https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/hosts.py#L21410:41
bauzastl;dr used_max counts all the instances while used_now uses the reported RT usage10:42
yglbauzas: what is RT ?10:42
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bauzasygl: sorry, the ResourceTracker10:42
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yglbauzas: so used_now means those resources which r being used ?10:43
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BobBalljohnthetubaguy: Regarding your question in #openstack-meeting; Theoretically we may be able to fake some PCI devices names when we list them in the XenAPI driver, and then use those names to translate to the correct XAPI calls - but it's an abuse of the PCI code as they are not actually PCI devices at all.10:44
BobBallWe haven't looked into that option as it is very ugly to fake up PCI devices10:45
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PaulMurrayjohnthetubaguy, alex_xu use of 'server' vs 'instance' is inconsistent in the api concepts doc. Thought I would go through changing it. Which is the preferred word?10:50
PaulMurrayI would guess server - as all the titles say server?10:51
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baffleHmm, I see if I add virtual size of images in _base on top of instances the numbers are more close..10:52
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openstackgerritShaoHe Feng proposed openstack/nova-specs: report more live migration progress detail  https://review.openstack.org/24847210:56
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openstackgerritRaga lahari proposed openstack/nova: Support for new --status parameter to "nova-manage vm list" command  https://review.openstack.org/24237011:02
bauzasPaulMurray: so I had to leave early last evening11:03
bauzasPaulMurray: you said to me that a cloud operator can be an API user, right?11:03
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bauzasPaulMurray: if so, it seems it needs more explanation, because I don't want to discuss on professsional roles, rather on policy roles11:04
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paul___Test11:13
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bauzaspaul___: ACK+SYN11:13
openstackgerritShaoHe Feng proposed openstack/nova-specs: report more live migration progress detail  https://review.openstack.org/24847211:14
paul___Ta11:14
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openstackgerritNikola Dipanov proposed openstack/nova: Fix CPU pinning for odd number of CPUs w hyperthreading  https://review.openstack.org/22957511:22
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ndipanovdanpb, mdbooth lbelivea ^ I clairfied some comments there - mind popping your votes back onto it - I'd really like to see that one merged soon11:24
PaulMurraybauzas, no, I said what I was calling a cloud operator was an actor in the use case.11:25
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PaulMurraybauzas, I think the changes John has made make it clear - I don't think we need to spin on this - do yo uagree?11:27
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johnthetubaguyBobBall: but its more about reporting right?11:34
openstackgerritPaul Murray proposed openstack/nova-specs: Allow volume operations when shelved  https://review.openstack.org/24309611:34
johnthetubaguyBobBall: I think what kills that is all the different types11:34
johnthetubaguyPaulMurray: oh, good question, server is correct I believe11:35
johnthetubaguybauzas: I did define the users somewhere, I should look at that11:35
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alex_xuPaulMurray: yea, server is right one.11:36
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PaulMurrayjohnthetubaguy, alex_xu I'll do patch on that file to make it use server consistently11:38
alex_xuPaulMurray: thanks11:38
johnthetubaguyawesome11:38
lxslifor my interest, what's wrong with 'instance'?11:38
johnthetubaguyPaulMurray: its confusing but API docs talk about servers and hosts, the dev docs talk about instance11:38
johnthetubaguylxsli: its not a concept in the API at all11:39
lxslihuh, ok11:39
alex_xuyea, although we have os-instance-action, but the server is the one we agreement on for api11:39
johnthetubaguylxsli: thats a slight lie, its in a few places by accident, but /servers/detail etc11:39
johnthetubaguyalex_xu: yeah, that one,oops11:39
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johnthetubaguyPaulMurray: bauzas: alex_xu: so I can't find in the API concept guide a description of users/actors11:43
johnthetubaguybut anyways, lots to do already11:43
alex_xujohnthetubaguy: you mean about admin role?11:44
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johnthetubaguyalex_xu: sort of, I guess. I guess its more talking about common RBAC setups, and how that relates to the API policies that are in place11:45
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johnthetubaguyalex_xu: I need to think about how we should describe that actually, its tricky...11:45
alex_xujohnthetubaguy: ok, or just put a todo in the api guide first.11:46
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openstackgerritPaul Murray proposed openstack/nova-specs: Detach and attach boot volumes  https://review.openstack.org/22173211:48
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openstackgerritAnusha rayani proposed openstack/python-novaclient: Nova volume-attach should also allow user to provide volume name for the input  https://review.openstack.org/24963411:49
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PaulMurrayndipanov, I updated volume specs to reflect our discussion yesterday: https://review.openstack.org/#/c/243096/ https://review.openstack.org/#/c/216578/11:54
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ndipanovPaulMurray, ok cool will take a look11:58
ndipanovam I on the list of reviewers already?11:58
ndipanovI am - good!11:58
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markus_zWho's the poor guy who rechecks all patch sets for hyper-v?12:06
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openstackgerritjichenjc proposed openstack/python-novaclient: Print current nova default nova API microversion  https://review.openstack.org/24913212:08
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lxsliwhen you put 23 comments on an old revision of a spec ;-;12:11
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openstackgerritPaul Murray proposed openstack/nova: Make server concept guide use 'server' consistently  https://review.openstack.org/24973112:13
openstackgerritjichenjc proposed openstack/nova: Add DiskFormat as Enum in fields  https://review.openstack.org/22985412:14
openstackgerritjichenjc proposed openstack/nova: Make ImageMeta:disk_format use DiskFormatField  https://review.openstack.org/23146012:14
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openstackgerritjichenjc proposed openstack/nova: Use oslo versioned object  https://review.openstack.org/23168912:16
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openstackgerritjichenjc proposed openstack/nova: Remove stub_compute config options for console  https://review.openstack.org/23421712:18
openstackgerritjichenjc proposed openstack/nova: Use instance objection instead of db record  https://review.openstack.org/23421812:18
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tdurakov_alaski, hi12:19
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openstackgerritJohn Garbutt proposed openstack/nova: docs: add clarifications to move servers  https://review.openstack.org/24932112:20
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openstackgerritJohn Garbutt proposed openstack/nova: docs: reorder move servers text  https://review.openstack.org/24933112:23
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johnthetubaguyPaulMurray: sorry, I think my fixes ups just clashed with your change, but hopefully not too badly12:25
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openstackgerritChangBo Guo(gcb) proposed openstack/nova: Use version convert methods from oslo_utils.versionutils  https://review.openstack.org/20332212:28
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openstackgerritClaudiu Belu proposed openstack/nova: Hyper-V: adds os-win library  https://review.openstack.org/24772912:48
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openstackgerritJohn Garbutt proposed openstack/nova: api-guide: fix up navigation bar  https://review.openstack.org/24975712:57
openstackgerritJohn Garbutt proposed openstack/nova: api-guide: add note about users  https://review.openstack.org/24975812:57
lbeliveandipanov: I'll have a look today12:58
openstackgerritRadoslav Gerganov proposed openstack/nova: VMware: Use datastore copy when the image is already in vSphere  https://review.openstack.org/18671612:58
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openstackgerritSergey Nikitin proposed openstack/nova: Added db API layer to add instance tag-list filtering support  https://review.openstack.org/24880513:06
openstackgerritSergey Nikitin proposed openstack/nova: Added server tags support in nova-api  https://review.openstack.org/12894013:06
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openstackgerritPaul Murray proposed openstack/nova: Make server concept guide use 'server' consistently  https://review.openstack.org/24973113:06
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openstackgerritDmitry Guryanov proposed openstack/nova: libvirt: add nova volume driver for vzstorage  https://review.openstack.org/19084313:07
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PaulMurrayjohnthetubaguy, I've done the rebase - I knew it would happen13:09
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johnthetubaguyPaulMurray: cools13:28
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johnthetubaguyPaulMurray: bauzas: attempted to add a note about users, its not really enough, but better than not mentioning I think: https://review.openstack.org/#/c/24975813:31
johnthetubaguyonce we decide on names, we will have to go back and fix things up13:31
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bauzasjohnthetubaguy: PaulMurray: sorry was afk13:36
bauzasjohnthetubaguy: PaulMurray: I'll review john's change and +2 if okay13:36
alex_xujohnthetubaguy: danpb I updated spec https://review.openstack.org/#/c/245543/, propose remove the disk_over_commit and the disk usage check in new microversion. hope you can review it when you have time. Thanks in advance!13:37
claudiubhello. if anyone has like 2-3 minutes to review a simple patch, that just refines some exceptions in the Hyper-V driver, it would be great. Thanks! https://review.openstack.org/#/c/212102/13:38
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alex_xujohnthetubaguy: actually to say, we didn't use oslo.policy yet.13:40
johnthetubaguyalex_xu: yeah, I was being optimistic13:40
alex_xujohnthetubaguy: ok, that make sense :)13:40
johnthetubaguyalex_xu: honestly, I was about to talk about openstack common, and decided I would cheat13:41
bauzasalex_xu: wait, what? we don't use oslo.policy?13:42
dimsalex_xu : we have to fix that :)13:42
dimsbauzas : yep we don't13:42
bauzasWAAAAAAAAT13:42
bauzasoh yeah, I remember now13:43
bauzasit was an oslo incubator13:43
dimsjohnthetubaguy : bauzas : alex_xu : https://review.openstack.org/#/c/198065/13:43
alex_xubauzas: dims that is another story, there are some feature required by nova which proposed by sdague, but looks like that didn't get agreement yet, so we didn't switch to oslo13:43
johnthetubaguydims: yeah, saw the link on the blueprint13:43
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johnthetubaguyalex_xu: good point, I don't remember where that went now13:44
bauzasdims: oslo incubator is deprecated for the policy, right?13:44
dimsalex_xu : problem is there is no details on exactly what's needed in oslo.policy in a spec or bug report. someone will have to re-read the whole set of threads13:44
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johnthetubaguydims: yeah, I thought there was a spec getting written for our request, I guess that hasn't happened yet...13:45
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dimsjohnthetubaguy : not sure who had the pen on the spec13:45
alex_xuyea, I'm not quite where that went now, that is last memory about that13:45
dimsbauzas : i am going to approve a cleanup today https://review.openstack.org/#/c/245461/13:45
dimsboom! it's all gone13:46
johnthetubaguyalex_xu: should we add that for the next API meeting?13:46
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bafflealex_xu: In the "optional_block_migration_and_host_flags_in_live_migrate.rst" spec you mention "For `disk_over_commit`, currently whatever the value is True or False, it is buggy resource usage counting. It does different count than ResourceTracker." .. Does that explain the behaviour that I am seeing, where reported usage is way too high when I try to live-migrate?13:47
alex_xujohnthetubaguy: yea, I will add that to api meeting13:47
johnthetubaguyalex_xu: thank you!13:47
alex_xujohnthetubaguy: np13:47
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openstackgerritMike Fedosin proposed openstack/nova: Bringing Glance v2 images to a uniform format  https://review.openstack.org/23169613:47
alex_xubaffle: emm...it shouldn't be too high, only can help too low13:48
alex_xus/help/happen/13:48
dimsjohnthetubaguy : alex_xu : could use your eyes on the olso.reports review https://review.openstack.org/#/c/216917/ please when you get a chance13:48
dimsbauzas : ^^13:48
bauzasdims: heh http://cdn.meme.am/instances/400x/53712611.jpg13:48
dimsLOL13:49
dimsyou all reminded me of the work pending :)13:49
dimsbauzas : i am in 02067 :)13:49
bauzasnah, the meme was for you13:50
bauzas'guys, we don't know who made that to that code, but I'm gonna shoot you'13:50
dimshaha13:51
PaulMurraybauzas, johnthetubaguy talking about users/operators/admins etc13:51
PaulMurrayI think the only distinction we can talk about in terms of the API is admin or non-admin13:52
bauzasPaulMurray: not true, you can define roles AFAIK13:52
PaulMurraybauzas, yes I know, but the policy file only uses admin, admin_api (which is admin) and owner13:53
bauzasright13:53
PaulMurraybut I think the owner is implied in most cases rather than being started in policy13:53
bauzassure, I got your point13:53
PaulMurraye.g. most server operations do not define a policy - or use ""13:53
PaulMurrayBut in contrast, use cases will be motivated by something other than that13:54
bauzasmy concern is that we refraining ourselves giving the magical wand to end-users13:54
PaulMurraySo for example, we have a cloud provider/cloud operator/whatever13:54
bauzasin general, we make the assumption that some deployment-specific case can't be shown to users13:54
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bauzasPaulMurray: sure, I understand13:55
bauzasPaulMurray: I totally get that admin vs. user is a very poor abstraction13:55
PaulMurrayyes, so those actors will always be using admin role in api, but it doesn't really make sense to talk about why those actions are admin actions without talking about how generally does it and why13:56
mdboothI have an rpc question relating to: https://review.openstack.org/#/c/248705/3/specs/mitaka/approved/migrate-libvirt-volumes.rst,cm13:56
bauzasPaulMurray: but since lots of people are deploying Nova from various ways, I think the smalless common denominator is that abstraction13:56
bauzasPaulMurray: for example, you can take sudo as an example13:56
bauzasPaulMurray: you can have more that you can imagine ways to define sudo roles and powers13:57
mdboothI'd like to pass driver-specific data over rpc. Spoke to dansmith about it the other day, and decided to use system metadata as a side-channel. It feels a bit dirty, though, and I'd like to look harder at using rpc again before deciding to go that way.13:57
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bauzasPaulMurray: but at the end, all goes to the thing 'is that a normal user or someone else" ?13:57
PaulMurraybauzas, yes, I do agree13:58
mdboothThe obvious thing to do would be to add an opaque text blob to the rpc, and let the driver do whatever it wants with it.13:58
mdboothHowever, the driver would then be responsible for serialisation and versioning.13:58
PaulMurraybut I think its useful to be more expansive in an explaination like a use case13:58
mdboothThat's not necessarily the worst thing, but it's not ideal either.13:58
bauzasPaulMurray: tbc, I don't want to take my yak and shave it13:58
mdboothDoes anybody have an opinion?13:58
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bauzasPaulMurray: I'm not *that* particularly opiniated, I'm just trying to explain that a concept of 'cloud operator' could lead to some confusion if that refers to an action defaulted to 'normal user' in the policy file13:59
bauzasso I'll review johnthetubaguy's change and see if some taxonomy is made13:59
johnthetubaguybauzas: not really14:00
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johnthetubaguyor not yet14:00
PaulMurraybauzas, so we could say "usually admin rights are given to the person who has responsibility for managing the cloud"14:00
bauzasI'm fine with defining a "cloud operator" wording, provided we document that as possibly an actor who could have a non-admin role in Keystone14:01
johnthetubaguybauzas: why are not non-admin?14:01
johnthetubaguyoops14:01
johnthetubaguywhy are they a non-admin?14:01
PaulMurrayjohnthetubaguy, I think they can be anything  - that's the point14:01
openstackgerritIldiko Vancsa proposed openstack/nova-specs: Add support for shared volumes between guests  https://review.openstack.org/21250814:02
johnthetubaguyPaulMurray: right, its more the persona really14:02
rpodolyakahey, guys! could you please take a look at https://review.openstack.org/#/c/247552/ (master) and https://review.openstack.org/#/c/247491/ (stable/liberty) which fix issues with service state reporting thread ( https://launchpad.net/bugs/1517926 )?14:02
openstackLaunchpad bug 1517926 in OpenStack Compute (nova) "Nova services stop to report state via remote conductor" [Undecided,In progress] - Assigned to Roman Podoliaka (rpodolyaka)14:02
bauzasjohnthetubaguy: that's because I was having some concerns with the merged file where an action was said "as a cloud operator I can do" but that action was mapped with the default role in the policy file14:02
PaulMurrayjohnthetubaguy, bauzas but a user will only be what the admin says14:03
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PaulMurraybut I think the point is that there are things we associate with users14:03
PaulMurraye.g. generally they don't get to know about hosts14:03
PaulMurraybut they could be given that right14:03
johnthetubaguyso we totally need a set of personas defined...14:03
PaulMurrayso everything in the policy file that we would say "usually its like this" is based on some unwritten assumptions about who does what14:04
PaulMurrayI think we do actually have an idea of what those assumptions are14:04
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PaulMurraybut we are more flexible and allow different policies to be written14:05
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PaulMurrayjohnthetubaguy, so yes, we could describe some example personas14:05
bauzasjohnthetubaguy: PaulMurray: so my comment was mostly driven by https://review.openstack.org/#/c/247016/3/api-guide/source/server_concepts.rst,cm L43514:06
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bauzas"Resizing a server is not normally a choice that is available to the cloud operator"14:06
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bauzasvs. https://github.com/openstack/nova/blob/master/etc/nova/policy.json#L26514:07
PaulMurrayyes, I got that - its interesting isn't it.14:07
bauzas"os_compute_api:servers:resize": "",14:07
PaulMurraybecause my statement is right14:07
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bauzaswhich means anyone either admin or owner of the VM can resize14:07
PaulMurrayexactly, there is nothing to stop an admin doing something14:07
PaulMurrayexcept that they shouldn't14:08
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PaulMurrayin other words, the RBAC doesn't define the world we live in14:08
PaulMurraythere are other things that are outside nova at play14:08
bauzasa-ha I see your point then14:08
PaulMurrayand nova is driven by those use cases, not the other way around14:09
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jrolljohnthetubaguy: that ironic network spec has a +2 now if you have time to give it another review :) https://review.openstack.org/#/c/237067/14:09
bauzasPaulMurray: well, it's outside the scope of Nova then14:09
PaulMurraybauzas, but you are right - we do only talk in terms of admin and non-admin for the API14:09
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PaulMurraybut I think sometimes more of an explaination is useful to understand why something is the way it is14:10
bauzasgotcha14:10
PaulMurraybauzas, otherwise how do we explain evacuate14:10
PaulMurrayits an operation that can't be done safely14:10
bauzasmeh, the host is down right?14:10
bauzasso there should be an user impact14:11
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bauzashere, I got you care about the user impact14:11
PaulMurrayyes, and the operaation is safe if something has happened outside nova that nova doesn't know about14:11
bauzasbecause if that's a pet, then a resize made by an admin could tell to the user "say hi, we gonna screw your VM and rebuild a fresh one"14:12
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bauzasthe whole point of that is, are we still talking of Nova?14:12
bauzasNova only provides low-level APIs for managing VMs14:13
bauzashow those APIs are used by users is out of its control14:13
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bauzasI actually also wonder : if operators care about user impact, they could just make a change to the policy file and provide a role which would explicitly be "owner only"14:14
bauzasthat would be a configuration stuff14:14
bauzasstill out of Nova14:14
mdboothbauzas: I think the doc makes it clear what the purpose of the api is. The cloud operator has plenty of ways to screw users if they want to, but they're not supposed to :)14:15
PaulMurraybauzas, I think this is a lot more simple than we making it sound14:16
edleafemdbooth: :)14:16
bauzasPaulMurray: ok, I see14:16
PaulMurrayall we need to do is decide on a real world job - like cloud provider say14:16
bauzasPaulMurray: you're stating in the doc "okay, we allow that, but that's unreasonable"14:16
edleafePaulMurray: agree. We should be able to divide into 1) can only touch my stuff and 2) everything else14:16
PaulMurrayand use it more consistently in examples14:17
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mdboothIn general, putting technical measures in place to prevent operators from doing things tends to lead to bad places.14:17
PaulMurraylike "sometime a cloud provider needs to bin a host - lets give him a way to get the vms of first - for this we use live migration"14:18
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PaulMurrayand by cloud provider I mean a guy who has built a data centre in his garage and has real motivations that people relate to14:19
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bauzasPaulMurray: okay, I think I got your idea of describing use cases rather than API resources or actions14:21
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bauzasPaulMurray: since I'm very bad at English-speaking, I can't really explain why that specific sentence worries me "Resizing a server is not normally a choice that is available to the cloud operator because it changes the nature of the server being provided to the user"14:23
PaulMurraybauzas, that sentence you pointed out is probably a bit strong. Would it seem better if it said something like14:23
bauzasPaulMurray: maybe because it uses the present tense14:23
bauzaswhile it should use the conditional14:24
johnthetubaguybauzas: PaulMurray: if you read that in the context of my final change, I think it sits much better14:24
bauzasjohnthetubaguy: I'm right in front of your change :)14:24
johnthetubaguybauzas: PaulMurray: I found that much easer to read once you put migration first, then have resize after that14:24
PaulMurrayjohnthetubaguy, yes, I agree, that's why I think we're over thinking this14:24
jaypipeszzzeek: would you mind taking a look over https://review.openstack.org/#/c/248805/? I had a bunch of comments on the first in the patchset and snikitin has addressed them now. Just want to double-check my SQL-fu with you :)14:24
bauzasPaulMurray: probably14:25
bauzasPaulMurray: I mean, I don't want to nitpick more than 30 mins on that14:25
PaulMurrayjohnthetubaguy, but I am still bothered that bauzas got stuck on it because it means it might not convey what we really want to say14:25
PaulMurrayjohnthetubaguy, personally I think its fine14:26
johnthetubaguyPaulMurray: yeah, its not quite right yet, but its a thing that still worth saying, if we can get it right14:26
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bauzasso, I'm the only guy who is a bit worried about that14:26
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bauzaswe can land that and see if others complain14:26
johnthetubaguyso it concerned my, but it felt better after this one: https://review.openstack.org/#/c/249331/14:26
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lxslimy $0.02: it feels weird to say the choice is unavailable, when we should say it's not a thing a cloud operator wants to do14:26
PaulMurraymaybe "its not normally a choice..." is wrong, maybe something like "A cloud operator wouldn't normally...."14:27
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lxsliPaulMurray: +114:27
johnthetubaguyPaulMurray: that does sound better actually14:27
bauzasagreed14:27
johnthetubaguybauzas: PaulMurray: I added a new change to define some standard users we can use throughout the doc: https://review.openstack.org/#/c/249812/1/api-guide/source/users.rst,cm14:28
johnthetubaguynot sure I like the list yet, but its a start14:28
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PaulMurraybauzas, I think https://review.openstack.org/#/c/249758/1/api-guide/source/index.rst isn't really needed14:29
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PaulMurraythe bit about RBAC could go into the paragraph on L#20 though14:29
bauzasPaulMurray: fair enough, if we leave some hint that all of that is just configurable for matching personas, like johnthetubaguy began to mention14:30
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PaulMurraybauzas, johnthetubaguy do we have a bit about policy in there - or a reference to another doc that discusses it?14:30
PaulMurrayI mean somewhere in the api docs in general14:31
johnthetubaguyPaulMurray: I was thinking about the folks who are looking for the Admin API docs14:31
johnthetubaguyPaulMurray: folks seem to assume that would be a separate API14:31
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PaulMurrayjohnthetubaguy, we could explain that we used to have lots of APIs but then we decided to squash them all together and put a really small incrementing version number on them so you could get absolutely anything depending on the time of the week14:32
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edleafePaulMurray: "a cloud operator wouldn't normally... *because*..."14:32
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PaulMurrayjoke :)14:32
PaulMurrayedleafe, the because is already in the sentence, but yes that's right.14:33
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PaulMurrayShelving a server is not normally a choice that is available to14:34
PaulMurraythe cloud operator because it affects the availability of the server14:34
PaulMurraybeing provided to the user.14:34
edleafePaulMurray: yeah, just wanted to clarify why the second form you had sounded better.14:35
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edleafePaulMurray: saying it's not a choice sounds, well, a little mean :)14:35
lxsliit misses the point: it's undesirable not impossible14:36
PaulMurrayedleafe, I think its because the first form implies the operator can't do it - which he certainly can. Its just he wouldn't14:36
PaulMurraylxsli, right14:36
edleafePaulMurray: exactly14:36
johnthetubaguyPaulMurray :p14:36
openstackgerritMatthew Booth proposed openstack/nova-specs: Add detail to libvirt-storage-pools  https://review.openstack.org/24870514:36
* PaulMurray once delete a server that was called ARCHIVE by mistake14:37
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* PaulMurray was acting as an admin at the time14:37
johnthetubaguyI am thinking we could really do with some folks from the doc team helping review our guide...14:38
bauzasjohnthetubaguy: PaulMurray: FWIW, I +2d https://review.openstack.org/#/c/249321/4 because there are still lots of things to consider14:38
bauzasand I would prefer a more iterative approach14:38
bauzasfor docs I mean14:38
edleafebauzas: +1 for iterating on docs14:39
johnthetubaguybauzas: yeah, we have to do that14:39
bauzasjohnthetubaguy: and I feel that would help the docs team if they are willing to review that doc14:39
mdbooth+1 it's an excellent doc, and immediately useful.14:39
johnthetubaguybauzas: as long as we don't merge something thats plain wrong, I am OK with a bit miss-leading, or hard to understand in a baby step14:39
bauzasexactly14:39
lxslimisleading :p14:39
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johnthetubaguylxsli: lol14:39
johnthetubaguyPS... I can't write decent prose, even if my life depended on it!14:40
johnthetubaguyone day, maybe14:40
lxsliyeah when alex asked you to review some English yesterday I held myself back from an exclamation14:41
johnthetubaguy:)14:41
edleafelxsli: it's all relative :)14:42
PaulMurraylxsli, but it would have been a perfectly correct exclamation I'm sure14:42
lxsliIndeed, quite14:42
* PaulMurray just realised he has a job to no.....14:43
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PaulMurrayso even ! argh14:43
PaulMurrayno DO!!14:43
johnthetubaguyits catching14:43
lxsliI have a nice collaboration with an extremely smart and dyslexic person here in Bristol14:45
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lxsliHe understands problems, I fix his syntax and commit messages :)14:46
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johnthetubaguyI do love gerrit for that :)14:46
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edleafejohnthetubaguy: I have to restrain myself when reviewing on Gerrit. I worked as an editor in a former life. :)14:48
mdboothTrying to understand our rpc layer. Can anybody explain this to me:14:49
mdboothhttps://github.com/openstack/nova/blob/master/nova/compute/rpcapi.py#L587-L58814:49
bafflePaulMurray: Well. Usecase: "Customer A is not paying their bills, and we can't get hold of any of the contacts. They are 2 months overdue. Let's shelve all their servers and disable their login and see if something happens."14:49
johnthetubaguymdbooth: have you read dansmith's upgrade blog post? let me find the link14:49
mdboothSeems to be saying that if the other end doesn't support version 4.2, we just bump it back to 4.0 but otherwise do nothing?14:49
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johnthetubaguymdbooth: http://www.danplanet.com/blog/2015/10/05/upgrades-in-nova-rpc-apis/14:50
dansmithmdbooth: that's a bad example14:50
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johnthetubaguydansmith: oh, thats the dodgy one14:51
dansmithmdbooth: actually, that's a bug I think14:51
mdboothdansmith: Heh, sorry :)14:51
* mdbooth looks elsewhere14:51
johnthetubaguygood point, it should be dropping an arg that was added14:51
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dansmithmdbooth: inside that 4.0 block we should pop migration out of args14:51
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johnthetubaguyThat looks better: https://github.com/openstack/nova/blob/master/nova/compute/rpcapi.py#L65914:52
openstackgerritPetrut Lucian proposed openstack/nova: Hyper-V: removes *Utils modules and unit tests  https://review.openstack.org/21591714:52
mdboothdansmith: Incidentally, +1 to futurama references in blog posts14:52
dansmithjej14:53
dansmither, heh14:53
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bauzasalaski: just in case you're still a bit at work, you happy with me respinning https://review.openstack.org/#/c/211753/38/nova/objects/request_spec.py,cm based on jaypipes's comment?14:54
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Fdaisukejohnthetubaguy: Hi,14:55
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johnthetubaguyFdaisuke: hi14:55
Fdaisukejohnthetubaguy: May I ask about https://etherpad.openstack.org/p/mitaka-nova-spec-review-tracking/ ?14:55
johnthetubaguyFdaisuke: yes14:56
FdaisukeThanks. I'm concerned about the https://review.openstack.org/211101 of ironic in "Things blocking the work of other projects" section.14:57
FdaisukeAlmost other specs in "Things blocking the work of other projects" are reviewed by core-members of Nova.14:57
openstackgerritAlexis Lee proposed openstack/nova: Add FK bw_usage_cache.uuid -> instances.uuid  https://review.openstack.org/24878014:57
Fdaisukebut that spec has not yet been reviewed by core-members of Nova.14:57
FdaisukeBy Dec 3 of the Nova spec freeze, is it possible to review this spec preferentially?14:58
jrollFdaisuke: to be fair, the ironic spec hasn't even landed yet14:58
jrollhttps://review.openstack.org/#/c/200496/14:58
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johnthetubaguyunfortunately we have just under 100 specs in review right now14:58
johnthetubaguyI would focus on getting ironic folks, and team member to review that spec right now14:59
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johnthetubaguythats likely to give it the best chance to land14:59
jrolland that isn't on ironic's priority list for this cycle, and is a large amount of work. even if we merged both of those specs today, I'd be skeptical that work gets done before nova FF14:59
johnthetubaguyjroll: yeah, thats a good point14:59
openstackgerritsahid proposed openstack/nova: libvirt: introduce freeze filesystems  https://review.openstack.org/24914015:00
openstackgerritsahid proposed openstack/nova: libvirt: introduce thaw filesystems  https://review.openstack.org/24914115:00
openstackgerritsahid proposed openstack/nova: libvirt: replace direct libvirt's call AbortJobBlock  https://review.openstack.org/24913815:00
openstackgerritsahid proposed openstack/nova: libvirt: move find_disk to Guest's object  https://review.openstack.org/24913915:00
openstackgerritsahid proposed openstack/nova: libvirt: remove todo note not useful anymore  https://review.openstack.org/24913715:00
openstackgerritsahid proposed openstack/nova: libvirt: introduce "snapshot" to Guest's object  https://review.openstack.org/24935315:00
openstackgerritsahid proposed openstack/nova: libvirt: introduce "shutdown" to Guest's object  https://review.openstack.org/24983315:00
openstackgerritsahid proposed openstack/nova: libvirt: introduce "pause" to Guest's object  https://review.openstack.org/24983415:00
openstackgerritsahid proposed openstack/nova: libvirt: wrapper list_instance_guests to Host's object  https://review.openstack.org/24983515:00
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openstackgerritJohn Garbutt proposed openstack/nova: Add a summary of the architecture evolution work  https://review.openstack.org/20000115:02
Fdaisukejohnthetubaguy: jroll: Thank you for your informations :)15:03
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mdboothdansmith: Great blog post, thanks.15:04
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dansmithmdbooth: thanks15:05
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ndipanovjohnthetubaguy, hey - would be awesome if you could take a look at this - I know it's not a favorite area but it has had reviews from all the people who work on that code and I posted it so can't +2 it15:06
ndipanovjohnthetubaguy, https://review.openstack.org/22957415:07
ndipanovit's blocking this work https://blueprints.launchpad.net/openstack/?searchtext=virt-driver-cpu-thread-pinning15:08
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johnthetubaguyndipanov: honestly, I am unlikely to get to that before we are past spec freeze, I did take a quick look a weeks ago or so, and I wasn't 100% sure what I would be approving without have a good dig into that15:09
jrollFdaisuke: I left some comments for you, though, because I got curious and decided to read15:09
ndipanovjohnthetubaguy, fair enough15:10
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edleafemarkus_z: around? Would appreciate your feedback on https://review.openstack.org/#/c/24718115:10
ndipanovwill try to get jaypipes to look at it as he is the only other person on core familiar with it... but failing that - you're my only hope :)15:10
markus_zedleafe: jepp, I'm here, I need 10min. then I'm going to take a look15:11
edleafemarkus_z: sure, no rush15:11
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ndipanovkhm jaypipes :)15:13
alaskibauzas: sure, respin if you'd like.  I am not likely to be around much today15:13
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Fdaisukejroll: Thank you. It's very kind of you!15:14
openstackgerritMatthew Booth proposed openstack/nova-specs: Add detail to libvirt-storage-pools  https://review.openstack.org/24870515:14
dane-fichterAnyone have any guesses for why I can't instantiate the libvirt driver in a functional test? Even when attempting it the same way it's done in the unit tests?15:14
mdboothdanpb: Incidentally, I totally bailed on defining a locking implementation: ^^^15:14
mdboothI don't want to get bogged down with it, so I simply asserted that it exists, and we'd use it15:15
jrollFdaisuke: welcome :)15:15
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mdboothOf course, at some point somebody will have to not bail on that15:16
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bauzas alaski: ack, enjoy family time15:18
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lxsliedleafe: putting some comments on the scheduler options help15:33
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openstackgerritDan Smith proposed openstack/nova: Actually pass the migration data object down to the virt drivers  https://review.openstack.org/24821115:33
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openstackgerritStephen Finucane proposed openstack/nova-specs: Rework policies for virt-driver CPU thread pinning  https://review.openstack.org/24419815:36
edleafelxsli: thx15:37
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lxsliedleafe: wait until you see them ;)15:44
edleafelxsli: it's all good!15:45
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openstackgerritMike Fedosin proposed openstack/nova: Remove version hardcoding for 'show' method  https://review.openstack.org/22857815:48
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zzzeekjaypipes: commented...seems wrongish to me unless I'm totalyl missing the big picture15:54
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lxslijohnthetubaguy: is the CachingScheduler ever worth using?16:00
johnthetubaguylxsli: I would always use, myself, but I would say that16:01
lxslijohnthetubaguy: ok good to know!16:01
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johnthetubaguythe downside is slight increase in 'background' DB load16:01
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lxsliis this accurate?16:01
lxsliwhich aggressively16:01
lxsli    caches the system state for better individual scheduler performance at16:01
lxsli    the risk of more retries when running multiple schedulers.16:01
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johnthetubaguyyes, I think thats correct16:01
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lxsliawesome thanks16:02
johnthetubaguywe just one scheduler (at any one time) per cell16:02
johnthetubaguylxsli: it kinda works by accident, because of how we stop races when request multiple builds16:02
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johnthetubaguylxsli: this is the key bit: https://github.com/openstack/nova/blob/master/nova/scheduler/filter_scheduler.py#L16016:03
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rpodolyakacould someone review https://review.openstack.org/#/c/247552/ , please?16:14
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openstackgerritBalazs Gibizer proposed openstack/nova: Add infra for versioned notifications  https://review.openstack.org/24702416:17
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johnthetubaguyrpodolyaka: the priority is not set on that bug, moved it to high so it gets more attention16:20
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openstackgerritBalazs Gibizer proposed openstack/nova: Add infra for versioned notifications  https://review.openstack.org/24702416:26
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rpodolyakajohnthetubaguy: thanks! yeah, it's kind of annoying and reproduced easily on deployments16:32
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johnthetubaguyrpodolyaka: agreed16:33
johnthetubaguyrpodolyaka: I think we should backport this to liberty, once its merged16:34
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johnthetubaguyrpodolyaka: added a few comments, not sure about some of that16:38
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johnthetubaguyrpodolyaka: your fix works, but I think we loose some of the original good intent around that fix up patch that caused the regression16:39
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markus_zedleafe: I'm somewhere in the middle and it's excellent so far! A technical question: What's the use case for isolated images/hosts? I though we could do that with a HostAggregateFilter?16:41
openstackgerritdstepanenko proposed openstack/nova: WIP: This is 3rd part of changes according to pci-generate-stats blueprint.  https://review.openstack.org/24769216:42
edleafemarkus_z: it restricts images to only be built on specific hosts. I suppose aggregates could accomplish part of that16:42
lxslimarkus_z: this seems like an unfortunate legacy artefact16:42
lxslimarkus_z: you'll get to aggregate_image_properties_isolation_namespace soon16:43
paul-carlton2mdbooth: danbp: What is the best way to create a Linux system running libvirt 0.10.2 (mitaka min version) so I can develop/test storage pools implementation16:43
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edleafemarkus_z: I had forgotten all about it until I started writing that help section ;-)16:43
rpodolyakajohnthetubaguy: I don't really like it either, but I can't think of something better :(16:43
lxslimaybe there's some technical difference but while I was reading about isolated_hosts I was thinking "shouldn't the host list be an aggregate?"16:43
rpodolyakajohnthetubaguy: thank you for the review! I'll take a look at your comments16:44
johnthetubaguyrpodolyaka: put in some ideas, I think its super, super close16:44
edleafelxsli: probably, but, y'know, let's have 10 ways to do something!16:44
paul-carlton2mdbooth: mentioned Fedora the other day, I tried Debian Jessie but was told wheezy was better bet?16:44
mdboothpaul-carlton2: Well Fedora is good if you want to run modern libvirt/qemu16:45
markus_zlxsli: edleafe: yeah, I think I'm going to make a note in the etherpad that these "isolated" options should be re-evaluated later.16:45
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johnthetubaguymarkus_z: edleafe: lxsli: sounds like we might want to deprecate that one16:45
lxsliedleafe: awesome work by the way16:45
mdboothpaul-carlton2: I'd be inclined to focus on an old distro that users are actually using. What's the source of the 0.10.2 requirement?16:46
edleafejohnthetubaguy: I love how there are separate options for the namespace *and* the separator.16:46
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markus_zjohnthetubaguy: I thing they are good candidates, yes. A follow up patch maybe, when we have the bigger picture.16:47
johnthetubaguymarkus_z: yeah, sounds almost worth a TODO: this seems crazy16:47
edleafemarkus_z: I did have a few WTF moments reading through that code.16:47
mdboothpaul-carlton2: Incidentally, I was looking through the old libvirt storage pool implementation to see what it did about locking. AFAICT, it does nothing about locking, and assumes a filesystem based storage pool.16:47
mdboothpaul-carlton2: In other words, I'm not sure how useful it is.16:47
sbezverkHi, I am looking for folks who worked or working on numatopology filter. I suspect I hit a bug, need to discuss..16:48
markus_zedleafe: I can just imagine :) I'm going to start the libvirt options tomorrow, can't wait to see it :)16:48
edleafesbezverk: ndipanov would be a good person to discuss that with16:48
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sbezverkedleafe: Thank you16:49
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johnthetubaguymdbooth: paul-carlton2: quick thought about that, can we just designate one of the compute nodes to "own" the shared storage, for the first attempt? or does that just make things more complicated? (i.e. using "static" leader election)16:49
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ndipanovsbezverk, what16:50
ndipanovhappened?16:50
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mdboothjohnthetubaguy: That would be a solution to distributed locking. It would be pretty complicated in itself though, I think.16:50
mdboothWe'd need a remote locking rpc call, and recovery mechanism, for eg16:51
sbezverkndipanov: Here is the bug I filed: https://bugs.launchpad.net/nova/+bug/151987816:51
openstackLaunchpad bug 1519878 in OpenStack Compute (nova) "numatopology filter incorrectly returns no resources" [Undecided,New]16:51
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johnthetubaguymdbooth: its basically what we do with most things right now, use a local lock on the compute node, but yeah, over RPC does complicate it somewhat16:51
mdboothAs well as a mechanism to discover who the leader is.16:52
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johnthetubaguymdbooth: I was thinking nova.conf for the later16:52
mdboothWe'd need to define it per shared-storage16:52
johnthetubaguymdbooth: but like you say, maybe its not enough of a simplification to be worth the effort16:52
ndipanovsbezverk, wow thanks for a detailed bug report16:53
johnthetubaguymdbooth: we only deal with one set of shared-storage right now though, AFAIK?16:53
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mdboothIdeally libvirt would have something atomic/locking in the storage pool api. It's not there, though, so I think we're going to have to lose some abstraction.16:53
sbezverkndipanov: I hope it is not sarcasm ;-)16:53
mdboothMy initial thoughts were that we'd support certain storage pool backends explicitly, and implement our own locking based on that.16:53
mdboothyeah, that sucks, but at least we don't have to implement everything16:54
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ndipanovsbezverk, no it's not at all16:54
mdboothThe first implementation could be filesystem only16:54
johnthetubaguymdbooth: ah, gotcha, assuming some atomic property of the storage pool, like directory names, or something?16:54
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mdboothYeah, doesn't matter what it is, but if there's any atomic operation at all you can normally bend it to make a safe protocol16:54
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johnthetubaguyyeah16:55
ndipanovso looking at the attached file outlineing the state of hosts numa_topology16:55
ndipanovsbezverk, you seem to start out with some of the CPUs in pinned state16:55
mdboothI think if we can define atomic operations on directory, nfs, rbd, lvm we'll have covered pretty much all users16:56
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mdboothAnd as a bonus, directory and nfs would probably have the same implementation16:56
sbezverkndipanov: Forgot to paste initial snapshot.16:56
johnthetubaguymdbooth: honestly, if you do ceph and nfs, we have basically got 99% of folks right?16:56
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mdboothRight16:56
ndipanovsbezverk, actually 8 cpus on the first numa node16:56
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ndipanov "pinned_cpus": [4, 5, 6, 7, 8, 9, 10, 11]16:57
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johnthetubaguymdbooth: I do worry we end up implementing cinder, if we are not careful.16:57
dansmithjohnthetubaguy: this trivial patch is holding up a backport of itself, which is holding up constraints work on liberty: https://review.openstack.org/#/c/248875/16:58
dansmithbauzas: ^16:58
sbezverkndipanov: That is correct first instance took 8vcpu 2nd and 3rd 4 vCPus each16:58
ndipanovwhy is that?16:59
openstackgerritShaoHe Feng proposed openstack/nova-specs: Attach/detach SR-IOV interface  https://review.openstack.org/13991016:59
mdboothjohnthetubaguy: I hear sighs every time I start talking about robustness in detail, but I really think it's necessary.17:00
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mdboothAlso, if you push the locking out to leaves you can do it without impacting scalability.17:01
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edleafelxsli: "just one or two issues"? :D17:02
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mdboothSo locking on the actual storage you're using, rather than in the db, is both safer and more scalable.17:02
edleafelxsli: seriously, though - thanks for taking the time to go over all that.17:02
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johnthetubaguymdbooth: yeah, it sure shouldn't be in the DB for this stuff17:02
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mdboothdanpb: You were right, btw. The rbd driver currently doesn't do any locking in the image cache.17:07
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dansmithBobBall: this might be ready for you to find out all the ways it breaks xen now :) https://review.openstack.org/#/c/248211/17:12
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lxsliedleafe: XD17:14
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paul-carlton1mdbooth 0.10.2 is minimum version of libvirt supported in Mitaka, so whatever we do has to work on that17:14
lxsliedleafe: thanks for writing so much doc in the first place!17:14
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mdboothpaul-carlton1: Right, but presumably that's not arbitrary. I'm guessing it's that way because some users are using distro X, which only has this really old version.17:14
mdboothMight be easier to find out what distro X is, and just use it.17:15
openstackgerritDmitry Guryanov proposed openstack/nova: libvirt: workaround for vzstorage volume driver  https://review.openstack.org/24992217:15
mdboothpaul-carlton1: sdague might know? ^^^17:15
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paul-carlton1ok, I'll ping him Monday, when they all get back from stuffing themselves silly!17:16
* mdbooth wonders what centos 6 includes17:17
openstackgerritRadoslav Gerganov proposed openstack/nova: VMware: Use datastore copy when the image is already in vSphere  https://review.openstack.org/18671617:17
dansmithit's probably precise17:17
dansmithtrusty has 1.2.217:17
dansmithno, precise is 0.9.817:18
dansmithso I dunno what 0.10.2 is from17:18
paul-carlton1My tame Linux engineer has just pinged me he almost has 0.10.2 built and deployed on debian wheezy17:19
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mdboothpaul-carlton1: Build it yourself is always an option :)17:19
mdboothpaul-carlton1: However, you're then looking at potential issues with old qemu too.17:19
paul-carlton1I assumed for this work qemu was not an issue, but I appreciate that might be a dodgy assumption!17:20
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mdboothpaul-carlton1: Also old ssh, old rsync, old sasl, old rbd17:22
mdboothIt turns out that there are quite a lot of relevant parts of a system which aren't in python :/17:22
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paul-carlton1indeed, I don't see any indication of what our minimum version for qemu is17:23
paul-carlton1I'm just thinking about the use libvirt storage pools with respect to support for the minimum version17:24
mdboothI thinking going for the oldest distro is a pragmatic approach17:24
mdboothThen you get a packaged unit of oldness :)17:24
paul-carlton1For the storage pool based cold migrate we can reasonably require more recent distro since the status quo will still work, i.e. rysnc17:25
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mdboothpaul-carlton1: centos 6 has libvirt 0.10.217:27
mdboothMight be simpler just to target centos 617:28
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paul-carlton1bingo, will use that as my baseline test17:28
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mdboothpaul-carlton1: Except that centos 6 includes python 2.6 iirc17:29
mdboothwhich we don't support17:29
paul-carlton1Also debian wheezy with source build my co-worker has built17:29
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mdboothpaul-carlton1: Yeah, scratch centos 6. You'd have to upgrade python.17:29
mdboothNot worth it.17:29
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mdboothAlso, not even RH supports recent OSP on RHEL 6.17:30
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paul-carlton1The problem with the use libvirt pools implementation is that is planned to be the default so has to work for everything that currently works, nfs, ceh rbd17:30
paul-carlton1so focus on debian wheezy?17:30
mdboothWhat's the shipped libvirt in wheezy?17:31
paul-carlton1recent OSP?17:31
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mdboothRH's openstack17:31
paul-carlton1not sure17:31
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paul-carlton10.9.1217:32
paul-carlton1ta17:32
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mdboothAh, so this is wheezy with upgraded libvirt17:32
mdboothI guess that would probably be a lcd17:32
paul-carlton1yep, my man has been building from source17:32
paul-carlton1lcd?17:32
mdboothlowest common denominator17:32
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mdboothpaul-carlton1: What python does wheezy include?17:33
paul-carlton1to be honest I'd be happy with debian wheezy as is with 0.9.12 since if it works there it will work on 0.10.217:33
mdbooth2.717:34
paul-carlton1no idea, will need to check, what do we require?17:34
mdboothhttps://packages.debian.org/wheezy/python17:34
mdboothWe require 2.717:34
paul-carlton12.7!17:34
paul-carlton1is in wheezy17:34
* mdbooth notes that he hasn't installed Debian since 199617:35
paul-carlton1Before the internet!17:36
mdboothFrom floppy disk sets :)17:36
openstackgerritEd Leafe proposed openstack/nova: Docs: update the concept guide for Host topics  https://review.openstack.org/24994317:36
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mdboothHmm, maybe 9717:37
mdboothIt's hazy17:37
paul-carlton1I remember those days, first job in IT was to write a paper tape driver for  a DEC PDP 11/70 running system III UNIX!17:38
paul-carlton11979!17:38
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mdboothpaul-carlton1: You win :)17:38
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BobBalldansmith: Awesome - will have to wait till tomorrow though :/17:38
dansmithBobBall: no problem, I'm on turkey brain anyway17:39
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BobBallPresume you mean for me to test the end of the chain17:39
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BobBalloh - my bad17:40
BobBallCan I use the turkey brain excuse too?  Even though I'm in UK?17:40
dansmithBobBall: sure :)17:40
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BobBallawesome!17:41
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openstackgerritTracy Jones proposed openstack/nova: config options: centralize section "guestfs"  https://review.openstack.org/24896317:45
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markus_zedleafe: I'm really grateful for your great work with the options! It's awesome.17:48
edleafemarkus_z: thanks!17:48
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markus_zHave a great turkey day tomorrow!17:49
edleafemarkus_z: for me it's veggie day. Not a fan of turkey :)17:49
tjoneshi markus_z and edleafe.  i've updated the patch on guestfs.  just doing this one to learn and will continue taking others17:52
openstackgerritMarkus Zoeller (markus_z) proposed openstack/nova: config options: add hacking check for help text length  https://review.openstack.org/24207817:52
openstackgerritMarkus Zoeller (markus_z) proposed openstack/nova: add hacking check for config options location  https://review.openstack.org/24994717:52
markus_ztjones: Yes, I've seen your last patch set, this one should pass the tests. Thanks for your effort!17:53
markus_ztjones: If you have any questions, just ping me.17:53
tjonesmarkus_z: should i add a TODO about the help text?17:55
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markus_ztjones: Yes, that's fair. The following patch should then be based on this one to see the dependency.17:56
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mdboothOh... imagebackend.Image.cache() doesn't put anything in the image cache18:03
mdboothThat's... unexpected18:03
mdboothOr does it?18:04
mdboothAh, it might18:04
markus_zexpect the unexpected :D18:04
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* mdbooth wonders why the libvirt driver caches ephemeral disks, then18:06
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johnthetubaguymdbooth: is that for the filesystem create cost? certainly was true with ext3 I think18:06
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johnthetubaguyalthough, not sure we do that any more...18:07
mdboothjohnthetubaguy: Yeah, I saw that. It's weird that Nova would put a filesystem on an ephemeral disk.18:07
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openstackgerritRoman Podoliaka proposed openstack/nova: servicegroup: ensure state reporting thread does not die prematurely  https://review.openstack.org/24755218:13
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openstackgerritgaryk proposed openstack/nova: Neutron: configure requested amount of fixed_ips  https://review.openstack.org/16386418:18
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openstackgerritStephen Finucane proposed openstack/nova: Add 'CPUThreadAllocationPolicy' enum field  https://review.openstack.org/20264718:54
openstackgerritStephen Finucane proposed openstack/nova: Add 'cpu_policy' and 'cpu_thread_policy' fields  https://review.openstack.org/20264818:54
openstackgerritStephen Finucane proposed openstack/nova: trivial: Add some logs to 'numa_topology_filter'  https://review.openstack.org/20265018:54
openstackgerritStephen Finucane proposed openstack/nova: Add 'hw:cpu_thread_policy=require' scheduling  https://review.openstack.org/20265118:54
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openstackgerritStephen Finucane proposed openstack/nova: Add 'CPUThreadAllocationPolicy' enum field  https://review.openstack.org/20264719:17
openstackgerritStephen Finucane proposed openstack/nova: Add 'cpu_policy' and 'cpu_thread_policy' fields  https://review.openstack.org/20264819:17
openstackgerritStephen Finucane proposed openstack/nova: trivial: Add some logs to 'numa_topology_filter'  https://review.openstack.org/20265019:17
openstackgerritStephen Finucane proposed openstack/nova: Add 'hw:cpu_thread_policy=require' scheduling  https://review.openstack.org/20265119:17
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sfinucanndipanov: Got a moment?19:19
ndipanovsfinucan, yeah19:20
ndipanovmay need to drop off though19:20
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sfinucanndipanov: sweet. I'll be quick19:20
sfinucanso I want to rebase CPU thread pinning onto this https://review.openstack.org/#/c/229575/19:20
sfinucanand use your fixed 'prefer'19:20
ndipanovsfinucan, yeah please19:21
sfinucanbut that commit is quite old and is missing stuff I need (like Instance v2.0 by Dan)19:21
ndipanovlet me guess19:21
ndipanovyeah19:21
ndipanovsaw that today19:21
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ndipanovactually I can rebase it now19:21
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ndipanovI won't lose the +2s I have19:21
sfinucanPerfect19:21
ndipanovnot sure why I didn't do it this morning19:21
ndipanovcoming up19:21
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sfinucanOn that note, any idea if the other +2 is likely to happen any time soon? :)19:22
openstackgerritNikola Dipanov proposed openstack/nova: hardware: stop using instance cell topology in CPU pinning logic  https://review.openstack.org/22957419:22
openstackgerritNikola Dipanov proposed openstack/nova: Fix CPU pinning for odd number of CPUs w hyperthreading  https://review.openstack.org/22957519:22
ndipanovsfinucan, sadly no - I pinged johnthetubaguy about it and he's busy, and no one other than danpb and jaypipes really knows that code19:23
ndipanovbut I'll keep trying :)19:23
openstackgerritShaoHe Feng proposed openstack/nova-specs: Attach/detach SR-IOV interface  https://review.openstack.org/13991019:23
ndipanovif you can go back and give an informed +1 - as in19:23
ndipanovexplain why you agree with me that it's a good idea in case I missed a way to make it clear19:24
ndipanovthat would be helpful for people reviewing it that are not _that_ familiar with the code19:24
sfinucanndipanov: That's unfortunate. I'll review once again myself and maybe check coverage to be sure19:24
sfinucanAh yeah, no problem19:24
sfinucanwould appreciate it if you could do same (at least for the spec) ;)19:24
ndipanovwhat spec?19:25
ndipanovI thought it was merged...19:25
sfinucanrework, per comments on the code19:25
sfinucanhttps://review.openstack.org/#/c/244198/619:25
sfinucansorry - I should have tagged you. I tagged danpb19:25
ndipanovsfinucan, so I don't think you need to land this before we can land the code19:25
ndipanovit would be good to land it eventually19:26
ndipanovbut the BP is approved so just go ahead and hack on it19:26
ndipanovand we'll review this once the code is ready19:26
sfinucanndipanov: No? I thought specs were a requirement. That's good to know, if true19:26
ndipanovwell they are but yours is merged, right?19:26
sfinucanYeah, but these are pretty substantial changes19:27
ndipanovspecs should validate the existence of a problem and the approach to fixing it, not the implementation itself19:27
ndipanovwell that's life19:27
sfinucanOK, nice :)19:27
sfinucanShould have that rebase done soon enough so. Review when you can (I'm off until Monday anyway)19:27
ndipanovright drivers who are on at this time  johnthetubaguy dansmith ^19:27
openstackgerritVladik Romanovsky proposed openstack/nova-specs: Enable SR-IOV physical functions assignment with Neutron port  https://review.openstack.org/23987519:27
sfinucanand I'll do that review19:28
ndipanovsfinucan, thanks19:28
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cburgessdansmith *ping*19:35
dansmithcburgess: ohai19:35
cburgessOHAI19:35
cburgessSo... I don't actually need you per se but I need the opinion of a core on bug or spec. So I picked on you and shall allow you to say not fair ask someone else before I bug you further.19:36
dansmithI will reserve comment until you lay your cards on the table..19:37
cburgessdansmith Fair enough.19:37
dansmithI'm like a fountain of opinions, you know.19:37
cburgessSo we have this option called libvirt.disk_cachemodes. The idea here is that you can specify a driver and its cache mode. So for instance something like... 'network=writeback'19:38
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cburgessThis causes the network disk driver to use writeback as the caching strategy.19:38
cburgessRelevant code...19:38
cburgesshttps://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py#L462-L48219:38
cburgessSo this is all well and good but....19:38
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cburgessThe network disk driver supports multiple types of devices. For instance iscsi RBD.19:39
dansmithyeah, I was going to ask what is covered by network19:40
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cburgessSo the problem is this. You pretty much *must* use a cache mode of writeback with RBD. Otherwise your performance is measured in the 1s of IOPS. But if you enable writeback cache for any driver *other* then RBD libvirt tells you it can't do a live migration because its not safe, which it is not.19:40
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dansmithheh19:41
cburgessSo the question is... since you *must* set the cache mode to writeback, it block the ability to also use iSCSI. So that option really should be per driver and per protocol.19:41
cburgessSo is that a bug...19:41
cburgessOr do I need a spec?19:41
cburgessI'm asking now because spec freeze is like Monday or something and I'm worried I need to try and rush a spec on this.19:41
cburgessNote: We just found this last night.19:41
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openstackgerritStephen Finucane proposed openstack/nova: Add 'CPUThreadAllocationPolicy' enum field  https://review.openstack.org/20264719:42
openstackgerritStephen Finucane proposed openstack/nova: Add 'cpu_policy' and 'cpu_thread_policy' fields  https://review.openstack.org/20264819:42
openstackgerritStephen Finucane proposed openstack/nova: Add 'hw:cpu_thread_policy=require' scheduling  https://review.openstack.org/20265119:42
dansmithcburgess: well, if ceph only makes sense with one mode, does it make sense to even make ceph honor that flag?19:42
dansmithlike, can we just say "ceph is writeback always, regardless of this flag because $reasons" ?19:42
cburgessdansmith Well its not the default today and in theory I suppose people could be using it without that mode (which is wrong in my opinion), and you still have to pass that set of flags to libvirt.19:43
dansmithcburgess: presumably being set-table by driver is what you want anyway, but..19:43
cburgessInterestingly libvirt has special handling in its live migration check for RBD. As in if the cache mode is writeback and you are *not* RBD you get told no. But if you are RBD you are ok.19:43
dansmithcburgess: well, I'm just saying.. can the quick fix be to force ceph to always be writeback?19:43
cburgessdansmith I *think* so. Though I suspect some will object for $reasons.19:44
dansmithcburgess: well, here's the thing19:44
openstackgerritSurojit Pathak proposed openstack/nova: Fix wrong CPU metric value in metrics_filter  https://review.openstack.org/24382519:44
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openstackgerritStephen Finucane proposed openstack/nova: trivial: Add some logs to 'numa_topology_filter'  https://review.openstack.org/20265019:45
dansmithcburgess: because it'd be a config change, with upgrade impacts and stuff, it would kinda be nice to have it documented out what the reasons are, and what operators need to know about going forward19:45
dansmithcburgess: presumably we deprecate this option and add a new one with the proper formatting anyway19:45
dansmithcburgess: for that reason, it might be good as a spec, even though it's pretty small19:45
cburgessdansmith The challenge of course is that *all* disk drivers use this option so its probably touching a decent amount of code but I tend to agree that the current option just isn't sufficient in at least the network driver case.19:45
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dansmithcburgess: however, since libvirt has a special case for RBD, how about if we add a workarounds.rbd_is_always_writeback=True option for the short term? that's kinda what workarounds are for19:46
dansmithand then not rush the correct fix19:46
cburgessdansmith Ok... that interesting. So in the network driver if the work around is set, ignore the other option for RBD and use the RBD work around option? That way you can have RBD use writeback and the other protocols use the current option?19:47
dansmithcburgess: that's kinda my thinking on it.. it's not *really* a bug, it's a limitation, so... more opinions would be good if you think you can argue the bug case19:47
dansmithcburgess: right19:47
cburgessThat would be the "bug" fix, and then propose a spec for M (which probably slips to N given the timing) that completely changes the option to be more intelligent?19:47
dansmithright19:47
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cburgessThe "bug" case in my opinion is you basically can't use multiple volume types with CEPH and live migration.19:48
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cburgessYou either get performant CEPH, or live migrations, but not both if you also want an iSCSi volume.19:48
cburgessSo its a pretty big limitation.19:48
cburgessOK..19:48
dansmithyeah, it's kindof a weak bug case.. it's a limitation19:48
dansmithI know, but..19:48
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dansmithit doesn't crash or destroy things19:48
cburgessI know I know.19:48
dansmithanyway, that'd be my thing.. might as well ask around though19:48
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cburgessOK.. well I'll write up an LP over the break that argues for the double approach and I can bring it to the nova meeting next week. I'll focus on arguing for a work around for M with a proper fix/spec for N.19:49
dansmithcool I think that's a good plan19:50
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cburgessIf we had found this a few weeks ago I would just do a spec and try and get it in for M but there is no way I'm going to get a spec together and approved by Monday given the holiday.19:50
dansmithyar19:50
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sfinucanndipanov: Still here?20:17
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openstackgerritStephen Finucane proposed openstack/nova: Add 'CPUThreadAllocationPolicy' enum field  https://review.openstack.org/20264720:31
openstackgerritStephen Finucane proposed openstack/nova: Add 'cpu_policy' and 'cpu_thread_policy' fields  https://review.openstack.org/20264820:31
openstackgerritStephen Finucane proposed openstack/nova: Add 'hw:cpu_thread_policy=require' scheduling  https://review.openstack.org/20265120:31
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openstackgerritStephen Finucane proposed openstack/nova: Add 'hw:cpu_thread_policy=require' scheduling  https://review.openstack.org/20265120:36
openstackgerritEd Leafe proposed openstack/nova: Add better help text to scheduler options  https://review.openstack.org/24718120:36
openstackgerritEd Leafe proposed openstack/nova: Config options: centralize section "scheduler"  https://review.openstack.org/24589120:36
edleafeheading out for the long weekend holiday. See everyone next week!20:37
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pumaranikarHi, working on this bug https://bugs.launchpad.net/nova/+bug/1320269 which is about resizing the instance with preallocation setup20:42
openstackLaunchpad bug 1320269 in OpenStack Compute (nova) "Scheduler fails confirm resize of instances when there is enough space to complete resize" [Medium,Confirmed] - Assigned to Pushkar Umaranikar (pushkar-umaranikar)20:42
pumaranikarI tested the scenario with nano, micro and few tiny flavoured instances20:43
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pumaranikarit is not reporducible. But cloud not test with other flavors because of hardware resource restriction i have20:44
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pumaranikarShould I keep it open or we can close it. Any suggestions ?20:46
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openstackgerritStephen Finucane proposed openstack/nova: Add 'hw:cpu_thread_policy=require' scheduling  https://review.openstack.org/20265121:11
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openstackgerritTracy Jones proposed openstack/nova: Cleanup of compute api reboot method  https://review.openstack.org/12742721:22
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openstackgerritTracy Jones proposed openstack/nova: Cleanup of compute api reboot method  https://review.openstack.org/12742721:29
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openstackgerritStephen Finucane proposed openstack/nova: Modify VM's updated_at field on volume actions  https://review.openstack.org/24717623:54
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