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#openstack-nova - 2018-08-15
22:36:59 melwitt okay. I'll ask mriedem about it when he's around, to get his input
22:38:06 efried melwitt: Okay, I added a note to that effect, with a reference to the doc.
22:38:52 melwitt ok, thanks
22:39:11 efried melwitt: Based on what I'm reading at https://docs.openstack.org/nova/latest/contributor/blueprints.html and https://specs.openstack.org/openstack/nova-specs/readme.html#trivial-specifications I think you're probably right.
22:41:49 melwitt efried: thanks. yeah, was also looking at the git blame to see how other extra specs were added, for example one was from https://specs.openstack.org/openstack/nova-specs/specs/ocata/approved/libvirt-emulator-threads-policy.html
22:42:36 efried mm, that one clearly not specless
22:43:41 melwitt yeah. but for this one, it seems small enough that specless is my expectation, but I'll run it by mriedem and dansmith because sometimes a lot of questions arise and if that happens, a spec would be more appropriate
22:44:10 melwitt I can't say I know anyting about KSM myself
22:44:15 melwitt *anything
22:59:07 efried melwitt: Oh, technically I'm relying on sahid and sean-k-mooney to vet it. Procedurally... yeah, Matt and Dan.
23:00:27 dansmith I dunno about the claim that windows crashes when KSM is used.. can't really think of any reason that would be
23:00:35 dansmith normally I think of KSM as being a host decision or not,
23:00:46 dansmith so I'm kinda unsure about why we'd want it to be per-flavor
23:01:02 dansmith especially since it would affect your memory overcommit calculations
23:01:21 dansmith I would think you'd want to keep KSMing and non-KSMing instances separated by aggregate anyway
23:01:57 dansmith so I mean, that all leads me to think that it's probably worth a spec just on that basis
23:02:12 dansmith the other being that we want to make sure that we're not just plumbing a libvirt feature straight out the API
23:02:31 melwitt ack, thanks dansmith
23:02:35 dansmith and we should get input from the other virt drivers on whether they have similar technologies and make sure we can drive them with the same tunable
23:02:48 dansmith like, whether or not they allow it per-VM or only per-host
23:03:00 dansmith and whether it's just on or off, ro, rw, off, etc
23:04:16 dansmith I'd surely not want to add this just because someone thinks windows is destabilized by KSM, or because they have some weird unstable driver and turning KSM off changes some race semantics or something
23:05:45 cfriesen I could see KSM causing brief interruptions to the guest, but I wouldn't expect it to cause actual hangs.
23:06:54 dansmith right,
23:06:57 dansmith it can change timing semantics for sure
23:07:06 dansmith hence the buggy driver example
23:07:18 dansmith but so can swapping on the host to a much larger degree
23:08:14 openstackgerrit Dmitry Sutyagin proposed openstack/nova master: libvirt: add disabling KSM via flavor extra specs https://review.openstack.org/591854
23:16:52 openstackgerrit Merged openstack/nova stable/pike: Revert "libvirt: slow live-migration to ensure network is ready" https://review.openstack.org/591762
23:24:10 dansmith prometheanfire: ^
23:26:34 prometheanfire :D
#openstack-nova - 2018-08-16
00:44:43 mriedem 你好
00:47:56 mriedem smcginnis: if you're around, we need stable cores for https://review.openstack.org/#/c/591872/ RC2
00:48:46 mriedem anyone know if jichen is going to clean this up? https://review.openstack.org/#/c/533125/
00:48:53 mriedem efried: do we need to just update it ourselves?
00:51:16 openstackgerrit Merged openstack/nova master: Fix service list for disabled compute using MC driver https://review.openstack.org/583936
00:51:25 openstackgerrit Merged openstack/nova master: Revisons on notifications doc https://review.openstack.org/591621
00:51:32 openstackgerrit Merged openstack/nova master: use static pages for mitaka and newton release notes https://review.openstack.org/592150
00:52:56 mriedem tonyb: i guess you'd be a more appropriately time-zoned stable core for https://review.openstack.org/#/c/591872/ for RC2
00:54:40 mriedem Kevin_Zheng: want to start backporting https://review.openstack.org/#/c/583936/ ? it needs to go to rocky, queens and pike
00:54:47 mriedem we'll hold it out until we've released rocky though
00:55:01 tonyb mriedem: on it
01:04:32 Kevin_Zheng sure
01:05:31 tonyb mriedem: I'll ping lyarwood
01:06:10 mriedem tonyb: thanks but he's probably done for the day
01:07:54 tonyb mriedem: I can single core approve it
01:08:14 tonyb mriedem: given you're a stable core etc
01:09:57 dansmith mriedem: tonyb I got it
01:10:29 tonyb dansmith to the rescue!
01:24:04 mriedem cool; i've emailed jichen about the zvm docs since those are the only things remaining on the RC2 todo list
01:41:54 mriedem efried: edmondsw: frankly i care very little if the powervm out of tree driver supports a feature, i don't plan on adding flags to nova to support out of tree features, re: https://review.openstack.org/#/c/591898/
02:10:09 openstackgerrit fupingxie proposed openstack/nova master: Support list for alias in pci section in nova.conf https://review.openstack.org/592243
02:48:25 openstackgerrit Tao Li proposed openstack/nova master: Rollback instance vm_state to original where instance claims failed https://review.openstack.org/592252
03:32:20 pvc @edmondsw im usign ceph rbd
03:52:38 pvc hi
03:52:43 pvc anyone using ceph
05:16:08 openstackgerrit Merged openstack/nova stable/rocky: placement: ignore policy scope check failures if not enforcing scope https://review.openstack.org/591872
05:20:41 openstackgerrit Matt Riedemann proposed openstack/nova master: Explicitly fail if trying to attach SR-IOV port https://review.openstack.org/591898
05:39:59 openstackgerrit Merged openstack/nova master: Imported Translations from Zanata https://review.openstack.org/591129
06:07:46 openstackgerrit Brin Zhang proposed openstack/nova-specs master: Resource retrieving: add change-before filter https://review.openstack.org/591976
06:37:40 openstackgerrit Brin Zhang proposed openstack/nova-specs master: Resource retrieving: add change-before filter https://review.openstack.org/591976
06:40:19 openstackgerrit Matt Riedemann proposed openstack/nova master: Force refresh instance info_cache during heal https://review.openstack.org/591607
06:48:28 openstackgerrit Yikun Jiang (Kero) proposed openstack/nova master: Make monkey patch work in uWSGI mode https://review.openstack.org/592285
06:51:37 openstackgerrit Tao Li proposed openstack/nova master: Rollback instance vm_state to original where instance claims failed https://review.openstack.org/592252
07:01:40 openstackgerrit huanhongda proposed openstack/nova-specs master: Return "deleted" and "estimated_reclaim" time of instance for admin https://review.openstack.org/581638
07:03:58 openstackgerrit Brin Zhang proposed openstack/nova-specs master: Support deleting data volume when destroy instance https://review.openstack.org/580336
07:04:14 openstackgerrit Brin Zhang proposed openstack/nova-specs master: Add support specify volume type when boot instance https://review.openstack.org/579520
08:01:14 openstackgerrit Zhenyu Zheng proposed openstack/nova stable/rocky: Fix service list for disabled compute using MC driver https://review.openstack.org/592310
08:01:31 openstackgerrit Zhenyu Zheng proposed openstack/nova stable/queens: Fix service list for disabled compute using MC driver https://review.openstack.org/592311
08:05:19 mriedem tssurya: o
08:05:22 mriedem o/
08:05:37 mriedem i've added a couple of things to the cells meeting agenda if you want to take a peek and start lending brain power
08:05:38 tssurya mriedem: \o/
08:05:45 mriedem cross cell migration,
08:05:47 mriedem and down cell
08:06:06 mriedem our operators want a config option to not return any VMs from nova list if the tenant has any in a down cell
08:06:21 tssurya mriedem: oh okay
08:06:24 mriedem to avoid confusing users that thought they had like 3 VMs but now only list 2
08:06:31 mriedem ^ would be pre-microversion
08:06:44 mriedem b/c with the microversion we can list the down cell VMs with the UNKNOWN status
08:07:06 tssurya right so we need to change this now nad backport also I guess to Queens ?
08:07:06 openstackgerrit Yikun Jiang (Kero) proposed openstack/nova master: Make monkey patch work in uWSGI mode https://review.openstack.org/592285
08:07:28 tssurya before we start merging the UNKNOWN stuff.
08:07:35 mriedem tssurya: not sure about backports, but maybe if it defaults to current behavior
08:08:33 tssurya mriedem: the previous behaviour was 500 for down cells, do you suggest the config option to return an empty list if the user has stuff in the down cell then ?
08:08:59 tssurya instead of skipping
08:09:02 tssurya that cell
08:09:09 mriedem originally the behavior was 500 right?
08:09:12 tssurya yes
08:09:13 mriedem you fixed that to skip down cells
08:09:16 tssurya yes
08:09:26 mriedem so yes, they want an option to say don't skip, but just return an empty list
08:09:32 mriedem well,
08:09:37 mriedem if the project has any instances in a down cell
08:09:55 tssurya okay,
08:10:01 mriedem i think it would only apply to non-admin instance list; an admin doing nova-list --all-tenants wouldn't apply here
08:10:09 openstackgerrit fupingxie proposed openstack/nova master: Support list for alias in pci section in nova.conf https://review.openstack.org/592243
08:10:41 tssurya ack,
08:12:48 tssurya mriedem: in the agenda you say "show is OK", well show wouldn't work at all before the new microversion, would just be a 500
08:13:01 tssurya that's okay right ?

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