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#openstack-nova - 2018-08-29
15:05:33 openstackgerrit Konstantinos Samaras-Tsakiris proposed openstack/nova-specs master: Placement model for passthrough devices https://review.openstack.org/591037
15:10:07 openstackgerrit Chris Dent proposed openstack/nova master: [placement] Make _ensure_aggregate context not independent https://review.openstack.org/597486
15:11:07 mriedem anyone remember were the hell the xenserver CI repo is in github?
15:13:22 mriedem guessing https://github.com/citrix-openstack/qa
15:22:16 jaypipes mriedem: sorry?
15:24:41 openstackgerrit Dan Smith proposed openstack/nova master: DNM: Tester for grenade job https://review.openstack.org/597566
15:30:16 openstackgerrit Chris Dent proposed openstack/nova master: [placement] Make _ensure_aggregate context not independent https://review.openstack.org/597486
15:32:04 dansmith mriedem: tssurya: melwitt: do we need a cells meeting? my patches merged, I think we got melwitt's from last week as well, and tssurya and I are crushing the down cell stuff
15:32:20 dansmith and when I say we, I mean tssurya is doing it and I'm throwing tomatoes
15:32:45 tssurya I am okay to skip, sorry about the slow-ness in the spec imple; its because I am a litte stuck with the US visa stuff for the next week
15:33:19 tssurya but it should be settled tomorrow finally!
15:33:31 mriedem i don't really have any news; some info is coming in on the cross-cell migration stuff and i'm trying to probe internally (yes wording intended) on how our product team did this for cascading aka cells v1
15:33:51 dansmith tssurya: oh so you'll be in denver yeah?
15:33:57 tssurya yes :)
15:34:01 mriedem Kevin_Zheng knows more about what our product team did than i ever will
15:34:27 dansmith tssurya: that's cool, although I'm disappointed you'll be seeing the least nice venue in our fair country :/
15:34:49 tssurya dansmith: haha really ? its actually gonna be my first time in your country
15:35:04 dansmith tssurya: I know, which is why I'm disappointed :/
15:35:05 mriedem if i remember kevin's email correctly, tl;dr was that ports and volumes are accessible across cells for them
15:35:24 mriedem colorado is "nice" depending on where you are
15:35:32 mriedem out by the airport is not so much
15:35:40 dansmith yes, colorado is for sure
15:35:49 dansmith but the hotel and area we're in sucks
15:35:54 tssurya heh, I booked into the same venue as the conference
15:35:56 tssurya oops
15:35:59 mriedem everyone did
15:36:02 dansmith unless you like living next to a freeway onramp with a big train
15:36:05 dansmith tssurya: you have to be there, yeah
15:36:15 dansmith tssurya: it'snot close to anything, which is part of the problem
15:36:21 mriedem i just hope you like ihop
15:36:22 mriedem every
15:36:24 mriedem morning
15:36:31 dansmith mriedem: don't think we're not
15:36:35 mriedem oh i know
15:36:43 mriedem my stretch pants are on order
15:36:47 dansmith we will put 20lbs on tssurya before she's gone
15:36:49 tssurya rolf
15:36:53 dansmith her family won't recognize her
15:37:07 tssurya :P that is gonna be hard considering the amount I eat
15:37:09 dansmith tssurya: the denver ptg comes with a complimentary case of type 2 diabetes
15:37:21 kashyap LOL
15:37:27 tssurya :D
15:37:40 mriedem luckily she probably gets free health care in switzerland
15:37:55 dansmith they won't know what to do with her
15:37:58 kashyap Is the venue so bad? I read somethings about a train being noisy apparently last time.
15:38:04 dansmith they don't have the IHOP antidote
15:38:07 mriedem kashyap: that is reportedly fixed
15:38:12 kashyap (And you're in the same venue this time -- assuming that problem is fixed)
15:38:15 kashyap mriedem: Ah, I see.
15:38:18 tssurya you both are making it sound really bad, hopefully you are just kidding
15:38:22 dansmith mriedem: med made it sound like maybe not
15:38:30 dansmith tssurya: it's pretty bad
15:38:33 mriedem i'm bringing my white noise machine either way
15:38:47 jroll that's an odd name for your child
15:38:48 tssurya :(
15:38:52 dansmith tssurya: last year my room had a hole in the wall because they weren't finished with the remodel
15:39:00 tssurya really ?!
15:39:20 tssurya so its not really gonna like the Dublin PTG then..
15:39:20 dansmith tssurya: the foundation got a *smashing* deal..
15:39:34 dansmith tssurya: probably less snow, but no promises
15:39:49 jroll I missed the last one in denver, dansmith is making me so excited
15:39:55 tssurya heh,
15:40:04 dansmith jroll: HOOOOOOOOOONK
15:40:14 dansmith jroll: HOOOOOOOOOOOOOOOOOOOOOOOOOOOONK
15:40:22 jroll :P
15:40:23 dansmith every ten minutes
15:40:27 dansmith every
15:40:27 dansmith ten
15:40:29 dansmith minutes
15:40:35 tssurya I will be there on Thursday, so I have like 4 days to go around, maybe I can see the nice part of colorado
15:40:37 dansmith sometimes at night I still hear it
15:41:05 dansmith jroll: you know it's bad when at checkin they hand you a noise machine and earplugs
15:41:09 dansmith literally.
15:41:17 dansmith until they ran out of course
15:41:21 jroll yeah, so I heard
15:41:22 edleafe tssurya: Rocky Mountain National Park may help you if you're missing the Alps
15:41:36 jroll I get in monday night. so. I guess I'll bring my own
15:42:00 tssurya edleafe: nice I will see if I can go there, just waiting for the visa to be in my hand..
15:42:31 mriedem tssurya: you're in luck! https://www.google.com/search?q=denver+broncos+schedule&ie=utf-8&oe=utf-8&client=firefox-b-1-ab#sie=m;/g/11hdb0xw6z;6;/m/059yj;dt;fp;1
15:42:49 mriedem you can go watch the broncos get destroyed at home!
15:43:04 tssurya mriedem: ha!
15:43:22 mriedem https://deadspin.com/why-your-team-sucks-2018-denver-broncos-1828078886
15:46:00 cfriesen mriedem: the "four friends kitchen" in Denver is really good, but a bit further away.
15:54:28 mriedem gibi: i think i know what's going on in https://bugs.launchpad.net/nova/+bug/1781648
15:54:28 openstack Launchpad bug 1781648 in OpenStack Compute (nova) "heal_allocations test randomly failing with "ValueError: Field `compute_node_uuid' cannot be None"" [Medium,Confirmed]
15:54:40 mriedem we're racing with the caching scheduler starting up and initializing the cache of compute nodes
15:54:50 mriedem so by the time we hit the scheduler, the cache is empty
15:56:07 gibi mriedem: that sounds like a reasonable explanation. I guess I missunderstood the logs when I stated in the bug that the host creation overlaps with the scheduling
15:59:07 gibi mriedem: so I guess the fix is that we need to wait in the test a bit
16:00:43 openstackgerrit Matt Riedemann proposed openstack/nova master: Restart scheduler in TestNovaManagePlacementHealAllocations https://review.openstack.org/597571
16:00:45 mriedem sort of ^
16:02:09 mriedem i thought about also changing this https://github.com/openstack/nova/blob/master/nova/scheduler/caching_scheduler.py#L78 to "if not self.all_host_states:" to handle the empty list case, but that could still be a weird race failure if we have 1 host but not both in the cache
16:02:23 gibi mriedem: your proposed start / stop is way better than a simple sleep in the test
16:02:34 mriedem i learned it from watching you gibi
16:04:09 gibi :)
16:05:32 melwitt .
16:05:51 gibi mriedem: I'm wondering how many other functional tests uses CachingScheduler and therefore might be affected by the same race
16:06:10 mriedem gibi: some do, but they might start the scheduler after the computes, i was just starting to audit that
16:06:43 gibi mriedem: cool
16:14:37 mriedem mlavalle: smcginnis: on this cross-cell cold migration thing nova will definitely need some pre-validation of the selected host,

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