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openstackgerrit | Matt Riedemann proposed openstack/nova: Override MTU for os_vif attachments https://review.openstack.org/370681 | 00:05 |
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openstackgerrit | Takashi NATSUME proposed openstack/nova: Treat 'body_map' as a mapping of HTTP request bodies https://review.openstack.org/363457 | 00:25 |
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openstackgerrit | Takashi NATSUME proposed openstack/nova: Enable cold migration with target host https://review.openstack.org/357105 | 01:24 |
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openstackgerrit | Takashi NATSUME proposed openstack/nova: Add functional tests for cold migration with target https://review.openstack.org/368557 | 01:42 |
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openstackgerrit | Harish Kumar proposed openstack/nova: Move memory balloon device handle out of _get_guest_config https://review.openstack.org/371249 | 03:20 |
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mriedem | woot https://review.openstack.org/#/c/370681/ is merged | 03:24 |
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mriedem | and https://review.openstack.org/#/c/371179/ | 03:53 |
mriedem | cutting rc1 | 03:53 |
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openstackgerrit | Takashi NATSUME proposed openstack/nova: WIP: Check the destination host in cold migration https://review.openstack.org/371269 | 04:34 |
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openstackgerrit | Takashi NATSUME proposed openstack/nova: Add functional tests for check dest on cold migration https://review.openstack.org/371277 | 05:58 |
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mahesh_ | hi everyone | 06:08 |
mahesh_ | I installed stable/mitaka openstack | 06:08 |
mahesh_ | Launched instances but in the vm console I am getting ipv6 address | 06:09 |
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mahesh_ | Please help | 06:09 |
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openstackgerrit | ChangBo Guo(gcb) proposed openstack/nova: Don't pass argument sqlite_db in method set_defaults https://review.openstack.org/350947 | 06:13 |
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openstackgerrit | Lucky samadhiya proposed openstack/nova: delete python bytecode including pyo before every test run https://review.openstack.org/371289 | 06:42 |
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zigo | bauzas: Around? | 07:34 |
zigo | Not a bug this time, I need some advice! :) | 07:34 |
zigo | I need to know a bit more about the placement API. | 07:35 |
bauzas | zigo: yup, wazza N | 07:35 |
zigo | bauzas: I wonder if there's a config flag for the placement API, the same way there is one for the compute API. | 07:35 |
bauzas | zigo: yup ? what is your question ? | 07:35 |
bauzas | zigo: indeed | 07:35 |
zigo | What's the value? :) | 07:35 |
bauzas | that's a fresh new service | 07:36 |
bauzas | called 'placement-api' in devstack | 07:36 |
bauzas | so, unless you start that service, then you won't use the placement stuff | 07:36 |
zigo | Choices: osapi_compute, metadata | 07:36 |
zigo | That's the values in the field... | 07:37 |
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zigo | So, is it called just "placement" ? | 07:37 |
bauzas | zigo: oh no | 07:38 |
bauzas | zigo: sec | 07:38 |
openstackgerrit | Lucky samadhiya proposed openstack/python-novaclient: delete python bytecode including pyo before every test run https://review.openstack.org/371308 | 07:38 |
zigo | That's something the nova-common configures in Debian, and I don't want to add a nova-placement-api package if everything can run on a single daemon. | 07:39 |
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zigo | tlbr: ^ | 07:39 |
bauzas | zigo: that requires a WSGI server | 07:39 |
zigo | bauzas: The nova eventlet daemon is gone? | 07:39 |
bauzas | zigo: https://review.openstack.org/#/c/342362/10 | 07:40 |
bauzas | zigo: no, it's just another service | 07:40 |
bauzas | so, you have the "compute" endpoint running thru eventlet | 07:40 |
bauzas | and you'll have to add in the service catalog a new endpoint called 'placement' | 07:40 |
zigo | bauzas: Right, there's a /usr/bin/nova-placement-api, but there was also /usr/bin/nova-metadata-api which I never use, and prefer /usr/bin/nova-api with the correct values. | 07:40 |
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bauzas | zigo: so the nova-placement-api WSGI handler is now able to run on any WSGI server you wish AFAIR | 07:41 |
zigo | enabled_apis is the field in nova.conf. | 07:41 |
bauzas | by default, we run over mod_wsgi in devstack | 07:41 |
zigo | That's not really my question! :P | 07:42 |
bauzas | zigo: that conf flag is not used | 07:42 |
zigo | Ok. | 07:42 |
bauzas | I got your question, I'm just saying that this placement-api service can't be run by the regular eventlet service that is sharing both the osapi-compute and the metadata API servcies | 07:43 |
bauzas | zigo: ^ | 07:43 |
zigo | Aaaaah... THANKS ! :) | 07:43 |
zigo | Exactly what I wanted to know. | 07:43 |
zigo | In Ubuntu, they made the placement-api service to conflict with the nova-api package. | 07:44 |
zigo | Do they share the same port or something? | 07:44 |
bauzas | weirdo | 07:45 |
bauzas | well, you can bind on any port you wish | 07:45 |
zigo | Yes, but there should be a standard, no? | 07:45 |
bauzas | I don't see why those should be mutually exclusive | 07:45 |
bauzas | zigo: I agree :) | 07:45 |
bauzas | zigo: I don't remember which port devstack is defaulted to | 07:45 |
bauzas | for the service catalog I mean | 07:45 |
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zigo | I'll try to find out. | 07:46 |
bauzas | zigo: that's in lib/placement | 07:50 |
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bauzas | lemme look | 07:50 |
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bauzas | zigo: https://github.com/openstack-dev/devstack/blob/master/lib/placement#L50 | 07:51 |
zigo | Yup. | 07:51 |
zigo | Just saw that. | 07:51 |
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openstackgerrit | Thierry Carrez proposed openstack/nova: Update reno for stable/newton https://review.openstack.org/371333 | 08:00 |
openstackgerrit | Slawek Kaplonski proposed openstack/nova: Add members in InstanceGroup object members field https://review.openstack.org/370567 | 08:00 |
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openstackgerrit | Slawek Kaplonski proposed openstack/nova: Add members in InstanceGroup object members field https://review.openstack.org/370567 | 08:03 |
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bauzas | oops I'm rude | 08:11 |
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openstackgerrit | Chris Dent proposed openstack/nova: [placement] Adjust the name of the gabbi tests https://review.openstack.org/371370 | 08:56 |
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cdent | mdbooth: love the spaghetti plate metaphor | 09:47 |
mdbooth | cdent: :) | 09:47 |
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johnthetubaguy | so I am curious on the context now | 09:48 |
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mdbooth | johnthetubaguy: Retrospective: https://etherpad.openstack.org/p/nova-newton-retrospective | 09:49 |
johnthetubaguy | and why slightly mushed up lasagne is not better | 09:49 |
johnthetubaguy | ah, I wondered if that was it | 09:49 |
mdbooth | I was actually re-using mriedem(?)'s metaphor | 09:49 |
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cdent | mdbooth: the bit of special sauce (ha!) that you added is the half a plate bit | 09:51 |
mdbooth | cdent: Glad you enjoyed it :) | 09:52 |
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johnthetubaguy | mdbooth: I think what you are hitting lots of the efforts are facing. Massive amounts of tidying before you can see what is actually needed. its a bugger to parallelise any of that stuff. making me hungry reading about that. | 09:56 |
johnthetubaguy | would love to work out how to do that better, been facing similar things in neutron v2 api | 09:56 |
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mdbooth | johnthetubaguy: It's controversial, but I think that's largely due to our low review cadence. | 09:57 |
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mdbooth | Huge tidy-up efforts like this are a total pain and take an age to get reviewed, so people don't do them. | 09:57 |
mdbooth | Result: ... | 09:57 |
johnthetubaguy | mdbooth: no, no I think you are right, there is just other stuff to review thats easier | 09:57 |
johnthetubaguy | we really want to do runways, where we dedicate review an coding resources at the same time | 09:58 |
johnthetubaguy | s/we/I/ | 09:58 |
* mdbooth thinks any solution which doesn't involve more people to do the work is just shuffling deckchairs on the Titanic :/ | 09:59 | |
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mdbooth | Although yeah, allocating review resources in advance would also be awesome. | 10:00 |
johnthetubaguy | well, not sure about more people, but certainly aligning folks better so there is less wasted effort | 10:00 |
mdbooth | Pair programming :) | 10:00 |
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mdbooth | So, I got myself in a situation where my principal 2 reviewers were dansmith and jaypipes. Don't get me wrong: those guys are awesome. However, they're also only 2 people, and extremely busy people to boot. | 10:01 |
mdbooth | I don't think we can pull critical resources in to some relatively simple area of code cleanup for a whole cycle when they can be better focussed on design astronautics. | 10:02 |
mdbooth | Better to delegate imho. | 10:03 |
mdbooth | IoW, I don't at all resent the time spent on the Placement API stuff. We just needed other capacity so we don't need to halt everything. | 10:05 |
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cdent | mdbooth: please do resent the time, I think it is reasonable because it reinforces the deck chairs problem | 10:15 |
cdent | because the nova stalwarts I've talked to seem to think that the review cadance on placement was good and I'm all ZOMG, WTF | 10:16 |
cdent | (with a smile of course) | 10:16 |
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mdbooth | danpb: Do vifs and storage devices ever use the same bus? | 10:44 |
mdbooth | I guess they could, but do they? | 10:44 |
danpb | sure they can all be PCI devs | 10:45 |
mdbooth | danpb: Specifically thinking about device ordering. Just wondering about putting storage and vifs at the end of the device list. | 10:45 |
mdbooth | Then a dynamically added device is less likely to change order on reboot. | 10:45 |
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* mdbooth wonders if 'less likely' is more or less user-friendly, though | 10:46 | |
danpb | nb, libvirt only honours ordering in XML within devices of the same type | 10:46 |
danpb | eg, regardless of whether you list all nics first, or all disks first, libvirt will always assign IDs to nics first | 10:46 |
mdbooth | Ah | 10:46 |
mdbooth | How about memballoon? | 10:46 |
mdbooth | Same thing, I'm guessing. | 10:47 |
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danpb | mdbooth: http://libvirt.org/git/?p=libvirt.git;a=blob;f=src/qemu/qemu_domain_address.c;h=bb16738350ddd27b1ab0f5acc51c893640982888;hb=HEAD#l957 | 10:48 |
mdbooth | danpb: Reading, thanks. | 10:48 |
mdbooth | danpb: Presumably we could be explicit about this if we had the metadata, right? | 10:49 |
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danpb | mdbooth: well nova would have to assign all addresses itself | 10:51 |
danpb | this is non-trivial amount of work | 10:51 |
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mdbooth | Or alternatively, just get libvirt to do it, then ask it what it did | 10:52 |
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mdbooth | Perhaps we should just be persisting the domain xml :/ | 10:52 |
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mdbooth | danpb: Thinking about this in the context of the persistent device metadata proposal. | 10:54 |
mdbooth | Is that just going to turn into a repo of everything that's already in the libvirt xml? | 10:54 |
mdbooth | Perhaps we'd be better storing the whole xml, then defining transformations on it for migrations. | 10:55 |
mdbooth | xslt, ftw :) | 10:55 |
mdbooth | If this is something we care about, of course. | 10:55 |
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danpb | mdbooth: which persistent device metadata proposal ? | 10:56 |
* mdbooth looks for his bp | 10:56 | |
mdbooth | Sorry, spec | 10:56 |
mdbooth | http://specs.openstack.org/openstack/nova-specs/specs/newton/approved/libvirt-instance-storage.html | 10:57 |
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mdbooth | danpb: The stated purpose of that is format data. | 10:57 |
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mdbooth | Well, layout, which includes format. | 10:57 |
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danpb | mdbooth: so, you're expecting to record the disk bus + bus address | 10:58 |
mdbooth | I wasn't, but if we were going to store this in Nova it would go there, I think. | 10:58 |
mdbooth | But I'm rethinking. | 10:58 |
danpb | so, if nova wants to store addresses, then life is going to be somewhat more complicate for nova | 10:58 |
mdbooth | Perhaps the whole domain would be better. | 10:58 |
danpb | you'll have to store the machine type first, because addresses are only meaningful in the context of a machine type | 10:59 |
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danpb | and while it is technically possible to store addresses for some types of device, and let libvirt auto-assign for other types of device, i fear it'll get messy doing that | 11:00 |
danpb | so ultimately you probably end up having to store the full *live* libvirt XML for the guest when first starting it | 11:00 |
mdbooth | Right, post-assignment. | 11:01 |
danpb | and then never re-create the XML from scratch thereafter - always just do modifications to this initial XML doc | 11:01 |
danpb | which is quite a cange from nova pov, as it always creates XML from scratch all over the codebase | 11:01 |
danpb | s/cange/change/ | 11:01 |
mdbooth | Yup | 11:01 |
danpb | also when storing snapshots in glance, we'd want to storage the corresponding XML with it | 11:01 |
danpb | of course arguably this is all something we really shoudl have been doing all along | 11:01 |
danpb | as doing tihs is important to prevent windows seeing random device changes and re-triggering license key activation | 11:02 |
mdbooth | Or making previously online disks offline due to san policy, because their pci address changed. | 11:02 |
danpb | what's fun is that nova kind of almost does part of the work | 11:03 |
danpb | because it stores the persistent XML with libvirt on disk and libvirt will ensure this persistent XML has the device adresses | 11:03 |
danpb | but nova overwrites this persistent xml every time :-) | 11:03 |
danpb | thus throwing away the nicely recorded device addresses | 11:03 |
mdbooth | danpb: If I create a domain with some 'legacy' xml, then ask libvirt for the live xml after it starts, will it have updated it for me? | 11:05 |
* mdbooth suspects yes | 11:05 | |
danpb | yep | 11:05 |
danpb | libvirt always canonicalizes the xml | 11:05 |
danpb | filling in any pieces you left out | 11:05 |
* mdbooth ponders | 11:07 | |
mdbooth | danpb: Thanks | 11:07 |
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mdbooth | danpb: You'd have a disparity between operations when the guest is running vs not running. So, attach to a running instance would be: (1) get libvirt to do the attach. (2) Update our store of the libvirt xml. | 11:13 |
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mdbooth | attach to a stopped instance would be xslt. | 11:13 |
danpb | mdbooth: no, you cn call attachDevice() on an inactive guest | 11:13 |
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mdbooth | Only if it's persistent though, right? | 11:14 |
danpb | mdbooth: and libvirt will update the persistent xml with that | 11:14 |
mdbooth | Why don't we use persistent domains, btw? | 11:14 |
danpb | we do | 11:14 |
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danpb | well, we persist the xml out to libvirt | 11:14 |
mdbooth | Maybe I'm getting confused with migrations. | 11:14 |
danpb | but we never let libvirt boot from that xml for unknown reasons | 11:14 |
mdbooth | We had that bug the other day where attach/detach was failing because the guest wasn't running. | 11:15 |
mdbooth | Do you remember that? | 11:15 |
mdbooth | Surely that meant the guest wasn't defined? | 11:16 |
* mdbooth didn't check closely enough, obviously. | 11:16 | |
danpb | no, i don't recall the details of that | 11:17 |
danpb | but it could simply have been nova telling libvirt todo a live attach by mistake | 11:18 |
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mdbooth | danpb: Just checked it, it was a rebase, not attach/detach | 11:20 |
mdbooth | So different context | 11:21 |
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mdbooth | danpb: Although the error was: libvirtError: Domain not found: no domain with matching uuid ... | 11:22 |
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openstackgerrit | jichenjc proposed openstack/nova: Pin maximum API version of microversion https://review.openstack.org/371453 | 11:23 |
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openstackgerrit | jichenjc proposed openstack/nova: Add description for v2.20 changes in api-ref https://review.openstack.org/371458 | 11:35 |
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rtheis | Hi folks, networking-ovn is having trouble with https://github.com/openstack/nova/commit/77f546623bb6c0b2a4441940f1740abd45bd3352 | 11:53 |
bauwser | rtheis: do you have a bug report? | 11:54 |
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rtheis | not yet | 11:55 |
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rtheis | The TODO indicates that the hack will be removed | 11:55 |
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rtheis | I see fixed released on the bug | 11:55 |
rtheis | can we remove it | 11:56 |
rtheis | OVN doesn't have such devices and setting MTU fails | 11:56 |
bauwser | rtheis: what is the problem then ? | 11:56 |
rtheis | Stderr: u'Cannot find device "qvbe3c1ced0-f3"\n' | 11:56 |
rtheis | instances fail to spawn | 11:57 |
bauwser | rtheis: could you please paste the error ? | 11:57 |
rtheis | ProcessExecutionError: Unexpected error while running command. | 11:57 |
rtheis | Stderr: u'Cannot find device "qvbe3c1ced0-f3"\n' | 11:57 |
rtheis | Command: sudo nova-rootwrap /etc/nova/rootwrap.conf ip link set qvbe3c1ced0-f3 mtu 1442 | 11:57 |
bauwser | sorry, I meant the stack in paste.openstack.org | 11:57 |
rtheis | http://paste.openstack.org/show/579969/ | 11:58 |
* bauwser looking | 11:58 | |
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bauwser | rtheis: I actually wonder why ovn follows down that path | 12:02 |
bauwser | johnthetubaguy: around ? | 12:02 |
rtheis | well ovn is built on ovs so I'm not surprised | 12:02 |
bauwser | rtheis: we have a conditional that only checks if os_vif knows the vif type | 12:02 |
rtheis | we use that | 12:02 |
bauwser | mmm good point | 12:03 |
openstackgerrit | jichenjc proposed openstack/nova: Add description for 2.9 microversion https://review.openstack.org/371481 | 12:04 |
rtheis | I need to head out to get kids to school, will check back later | 12:04 |
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lyarwood | johnthetubaguy: hey, can you point me at any bugs for the detach issues you're concerned by in https://review.openstack.org/#/c/351072/3 ? | 12:07 |
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lyarwood | mdbooth: did you say something about an offline detach volume failure earlier? | 12:08 |
mdbooth | lyarwood: I was mistaken. It was about volume-update, which is weird | 12:08 |
lyarwood | mdbooth: where disconnect_volume would fail? | 12:09 |
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mdbooth | It was the rebase call which failed | 12:09 |
mdbooth | That's a genuine bug, btw, because it doesn't make sense to do that there | 12:09 |
mdbooth | If the instance is stopped, that is | 12:10 |
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openstackgerrit | jichenjc proposed openstack/nova: Add more description on v2.9 history https://review.openstack.org/371490 | 12:10 |
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lyarwood | mdbooth: kk thanks | 12:11 |
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openstackgerrit | jichenjc proposed openstack/nova: Add reserved param for v2.4 https://review.openstack.org/371496 | 12:20 |
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johnthetubaguy | lyarwood: yeah, let me find the one that came up in the meeting | 12:41 |
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lyarwood | johnthetubaguy: ah thanks, https://bugs.launchpad.net/nova/+bug/1587285 by any chance? | 12:44 |
openstack | Launchpad bug 1587285 in OpenStack Compute (nova) "Volume status will be changed to "available" in spite of still attached to VM instance" [Medium,In progress] - Assigned to Rikimaru Honjo (honjo-rikimaru-c6) | 12:44 |
johnthetubaguy | lyarwood: thats the one | 12:44 |
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johnthetubaguy | lyarwood: its probably un related, but seemed worth a check | 12:44 |
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sdague | did we rc last night? | 12:55 |
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sdague | oh, we did, I see stable/newton, success! | 12:56 |
mriedem | yeah | 12:56 |
mriedem | but | 12:56 |
mriedem | we're going to have an rc2 | 12:56 |
mriedem | johnthetubaguy: did you see rtheis' comment about ovn here? https://review.openstack.org/#/c/370681/9/nova/virt/libvirt/vif.py | 12:56 |
sdague | mriedem: ok, how do you want to treat master right now? is it wide open? or are we in a quiet period to make backports easier? | 12:56 |
johnthetubaguy | mriedem: nope, just seen it now | 12:56 |
mriedem | sdague: as much as i'd like to start removing things, i feel like we should leave it quiet for a bit | 12:57 |
sdague | mriedem: also ++ on retrospective etherpad | 12:57 |
johnthetubaguy | yeah, make backports easier for a bit makes sense | 12:57 |
mriedem | i'll look for an ovn etherpad | 12:57 |
johnthetubaguy | yeah ++ on retrospective, its looking good | 12:57 |
johnthetubaguy | mriedem: yeah, I am curious which os-vif camp they fall into | 12:58 |
mriedem | ovs something | 12:58 |
sdague | mriedem: do the ovn people have a job with failed results they can point to there? | 12:58 |
mriedem | i'm over in neutron asking | 12:58 |
johnthetubaguy | mriedem: ah, so its your comment on the device not existing, which is odd | 12:58 |
mriedem | yeah, i asked about that yesterday and jaypipes said the plug method would check those | 12:59 |
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mriedem | https://bugs.launchpad.net/networking-ovn/+bug/1624120 | 12:59 |
openstack | Launchpad bug 1624120 in networking-ovn "gate-tempest-dsvm-networking-ovn failure due to "Timeout waiting for vif plugging"" [Undecided,In progress] - Assigned to Richard Theis (rtheis) | 12:59 |
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lyarwood | johnthetubaguy: thanks, yeah it doesn't appear related, if anything we just need some additional cleanup code for when the compute node comes back up and marks the instance as in an ERROR state. | 13:00 |
mriedem | sdague: johnthetubaguy: http://logs.openstack.org/75/371175/1/check/gate-tempest-dsvm-networking-ovn/7e52927/logs/screen-n-cpu.txt.gz?level=TRACE#_2016-09-16_11_20_39_627 | 13:01 |
sdague | mriedem: that sounds like an ovn bug for not being in sync between neutron / ovn ? | 13:01 |
mriedem | idk | 13:01 |
mriedem | would need russellb probably | 13:01 |
mriedem | no one is online yet | 13:01 |
bauwser | mriedem: yeah, discussed with rtheis about that | 13:01 |
mriedem | oh he's in neutron | 13:01 |
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bauwser | (the ovn issue) | 13:02 |
bauwser | http://paste.openstack.org/show/579969/ | 13:02 |
sdague | is it good enough to just put a try block in the nova code and let the os-vif call fail? | 13:02 |
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mriedem | we have a method in linux_net to check if the device exists | 13:03 |
mriedem | we should just add that to the loop | 13:03 |
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bauwser | sounds fine | 13:03 |
bauwser | mriedem: but why are we getting some device not existing ? | 13:03 |
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johnthetubaguy | mriedem: yeah, checking if the device is there sounds halmless | 13:04 |
johnthetubaguy | mriedem: I can do that patch now, if thats helpful? | 13:04 |
sdague | bauwser: it sounds like from the bug neutron thinks the device is ready before ovn actually does it | 13:04 |
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sdague | which means the mtu mismatch bug will be there on ovn, right? | 13:04 |
mriedem | sdague: that ovn bug might actually be for something else | 13:04 |
sdague | mriedem: oh, ok | 13:05 |
johnthetubaguy | honestly, I thought I saw os-vif creating the device | 13:05 |
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bauwser | sdague: mriedem: johnthetubaguy: process-wise http://paste.openstack.org/show/579969/ is not attached to some bug in nova | 13:05 |
mriedem | johnthetubaguy: i think we have to go with the device check for now, then we can put up an ovn patch with depends-on to test it, and ship that unless ovn people can tell us otherwise | 13:05 |
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bauwser | mriedem: I feel so | 13:05 |
mriedem | johnthetubaguy: i'll open a nova bug | 13:05 |
sdague | mriedem: yeh, at least that should avoid the instance fail to launch entirely | 13:06 |
johnthetubaguy | mriedem: sweet, I can start on that device check patch | 13:06 |
bauwser | yup | 13:06 |
bauwser | johnthetubaguy: cool, ty | 13:06 |
johnthetubaguy | sdague: I wonder about just swallowing the exception, but device check feels better | 13:06 |
sdague | well, realize device check is going to be more expensive | 13:07 |
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sdague | because it's another rootwrap exec | 13:07 |
sdague | those have real cost | 13:07 |
bauwser | mmmm | 13:07 |
bauwser | then what johnthetubaguy said, nope? | 13:08 |
bauwser | ie. just log and swallog | 13:08 |
bauwser | swallow | 13:08 |
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sdague | I know we've had actual bottlenecks on the networking space because of rootwrap costs | 13:08 |
mriedem | johnthetubaguy: https://bugs.launchpad.net/nova/+bug/1624383 | 13:08 |
openstack | Launchpad bug 1624383 in OpenStack Compute (nova) "vif plugging fails with ovn when trying to set mtu on qvb device that does not exist" [Undecided,New] | 13:08 |
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sdague | and if it's only an ovn issue, not making everyone else pay that cost, it might be nicer to just catch the exception | 13:09 |
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johnthetubaguy | sdague: hmm, good point | 13:09 |
mriedem | i think we get a ProcessExecutionError or whatever, so we won't actually be checking why it failed... | 13:09 |
mriedem | maybe we don't care | 13:09 |
mriedem | doesn't matter much to me since this should go away early in ocata | 13:10 |
sdague | ProcessExecutionError has the captured stderr in it | 13:10 |
johnthetubaguy | yeah, that last bit wins me over I guess | 13:10 |
johnthetubaguy | true, I should be able to check that | 13:10 |
sdague | "Cannot find device" is in there | 13:10 |
sdague | does nova have any knowledge that ovn is the back end any way? | 13:11 |
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mriedem | cdent: i'm having a hard time telling if you're trolling the retrospective | 13:12 |
mriedem | e.g. "Vast amounts of code was written and not merged" in the what went well sectoin | 13:12 |
mriedem | *section | 13:12 |
cdent | mriedem: I've responded there | 13:13 |
cdent | seeing as I'm one of the people who really wants a retrospective, do you really think I'd troll it? | 13:13 |
mriedem | the hard part about not having it in face yet is telling how people are saying things | 13:14 |
mriedem | if they are sarcastic or not | 13:14 |
cdent | I think doing what you did (asking in place) is probably the right thing at this stage | 13:14 |
danpb | mriedem: that os-vif trace looks bizarre - i'm not seeing how we can hit that error unless nova is running on windows ?!??! | 13:15 |
mriedem | danpb: not sure why you say that | 13:16 |
danpb | because the vif_plug_ovs impl will always create the veth pair on non-windows platforms | 13:16 |
danpb | so it should always exist when nova runs set_device_mtu | 13:16 |
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mriedem | are there any special ovn paths in os-vif? | 13:17 |
mriedem | otherwise yeah that's what jay said yesterday | 13:18 |
danpb | what is ovn exactly ? | 13:18 |
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danpb | https://github.com/openstack/os-vif/blob/master/vif_plug_ovs/ovs.py#L116 | 13:18 |
danpb | that's where os-vif creates the veth pair | 13:18 |
mriedem | i'm checking logstash to make sure it's not just this one patch that's failing check in the ovn repo | 13:19 |
mriedem | yup i looked at that yesterday | 13:19 |
mriedem | https://www.sdxcentral.com/sdn/network-virtualization/definitions/what-is-open-virtual-network-ovn-how-it-works/ ? | 13:19 |
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danpb | i guess we could miss creation if veth2 exists already, but veth1 does not exist, but that would be a fubar setup in other ways | 13:20 |
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danpb | ah, but that can't be the case anyway, since nova's failing on the veth1 | 13:21 |
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mriedem | yeah it's not just this one change | 13:22 |
mriedem | http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22mtu%201442%5C%22%20AND%20message%3A%5C%22_set_device_mtu%5C%22%20AND%20tags%3A%5C%22screen-n-cpu.txt%5C%22&from=7d | 13:22 |
cdent | bauwser: generally it's not a great idea when people are doing retrospectives to disagree with what people are saying. The idea is to gather _everyone's_ input, even if it disagrees with your own reality.\ | 13:22 |
cdent | bauwser: so, for example, rather than saying that I'm wrong about review delay in cells, you could say in things that went well, that everything got done | 13:23 |
cdent | my comment there is actually based on some conversations I had with alaski about what needed to happen and where things were dragging. So, I'm merely writing down my experience | 13:23 |
cdent | You can deny that experience all you want, but that doesn't mean it didn't happen that way, at least for some people. | 13:24 |
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danpb | mriedem: aieeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee, i see what's wrong | 13:25 |
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danpb | mriedem: isinstance(vif, VIFBridge) is *wrong* because VIFOpenVSwitch is a subclass of VIFBridge | 13:25 |
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danpb | mriedem: you need to check the exact type matches VIFBridge, not merely that its an instance of it | 13:25 |
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mriedem | danpb: ok, i commented on that as well | 13:27 |
mriedem | actually, why we even check that type | 13:27 |
mriedem | why the isinstance check at all | 13:27 |
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danpb | mriedem: only the VIFBridge scenario will create the veth pair | 13:27 |
mriedem | ok | 13:28 |
mriedem | well that's an easier fix | 13:28 |
alaski | cdent: bauwser yeah, there was review latency at times for cells. And as pointed out in the "what went well" section it got better when I got a little more vocal. | 13:28 |
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johnthetubaguy | sdague: mriedem: so that cannot find device thing... any ideas on if that will be translated into something different? | 13:29 |
mriedem | i also made a point to ask lascii what needed review if i hadn't heard from him in awhile | 13:29 |
mriedem | since i assumed he was just stewing | 13:29 |
mriedem | :) | 13:29 |
lascii | heh | 13:30 |
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mriedem | johnthetubaguy: sounds like danpb has an alternative above | 13:31 |
lascii | I think my tendency is to get into controversial discussions on the ML to let off steam :) | 13:31 |
mriedem | it is | 13:31 |
mriedem | microversions gah! | 13:31 |
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bauwser | lascii: cdent: so, tbc, I don't want to go in the box ring now, but I think any project with any review process has an inherent review latency | 13:31 |
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johnthetubaguy | danpb: I thought I was already checking for only the VIFBridge case? | 13:32 |
bauwser | that's natural behaviour and you can't expect people being robots | 13:32 |
sdague | johnthetubaguy: you mean, i18n translated? | 13:32 |
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johnthetubaguy | sdague: yeah | 13:32 |
sdague | yeh, I don't know | 13:32 |
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sdague | johnthetubaguy: lets see if we can solve it in en env first | 13:33 |
bauwser | lascii: so I think it's totally acceptable to have latency in your case, but you got success when you drove what to review | 13:33 |
cdent | bauwser: same deal: the existence of a problem being normal or natural does not change that it is a problem, or in this case "not super awesome". Maybe we can't change it, but we need to acknowledge that it is real and "not super awesome" | 13:33 |
bauwser | I don't want to enter that rabbit hole now, especially on a Friday :) | 13:34 |
danpb | johnthetubaguy: no, because VIFOpenVSwitch is a subclass of VIFBridge | 13:34 |
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danpb | johnthetubaguy: so you allowed through both cases by mistake :-( | 13:34 |
cdent | bauwser: it's not a rabbit hole | 13:34 |
bauwser | anyway, it seems that discussion could derail for more than 40 mins | 13:34 |
openstackgerrit | John Garbutt proposed openstack/nova: Stop ovn networking failing on mtu https://review.openstack.org/371543 | 13:34 |
johnthetubaguy | danpb: oh, dang it | 13:34 |
lascii | bauwser: yeah, I don't want to get into it atm either. we can do it over cocktails on the beach at the summit. I'm just agreeing with cdent that it's a thing that happened and therefore could be worth discussion. | 13:35 |
bauwser | I really *need* to modify my return flight from BCN, or I won't be able to attend the contributors meetup :( | 13:35 |
bauwser | lascii: remember that we'll meet in late October, so being at the beach could be a bit chilly :p | 13:35 |
bauwser | even for BCN :) | 13:35 |
johnthetubaguy | danpb: so direct type comparison would fix it? | 13:35 |
lascii | I love cold weather | 13:35 |
danpb | yes, it should | 13:36 |
lascii | bauwser: I'm leaving friday as well and won't make the afternoon session unfortunately | 13:36 |
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bauwser | honestly, the fact I discovered that our meetup was only on afternoon after I booked my flight just made me angry | 13:37 |
johnthetubaguy | danpb: would you recommend a good subclass for me to test with, to make sure the right thing is happening? | 13:37 |
bauwser | those friday mornings tend to be very productive | 13:37 |
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danpb | johnthetubaguy: well use VIFOpenVSwitch and make sure set_device_mtu is not called | 13:37 |
johnthetubaguy | danpb: yeah, that makes sense, will try that | 13:38 |
danpb | bauwser: pretty much all Red Hat european folks are leaving friday afternoon afaik | 13:38 |
danpb | so i figure friday afternoon is going to be a write-off for any kind of work | 13:38 |
danpb | and so planning anything important for that time is not a good idea | 13:39 |
mriedem | friday afternoon is the meetup | 13:39 |
mriedem | so just random stuff | 13:39 |
mriedem | i'll start an ovn change that depends on the nova fix | 13:40 |
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bauwser | danpb: yeah, that's why it sucks | 13:41 |
bauwser | danpb: because we won't get enough quorum to do the things we usually discuss during those productive meetups | 13:41 |
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bauwser | but given I'm able to modify my flight for free, I'll try to do so if I can | 13:42 |
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mriedem | here is the ovn test patch https://review.openstack.org/#/c/371549/ | 13:49 |
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openstackgerrit | John Garbutt proposed openstack/nova: Stop ovn networking failing on mtu https://review.openstack.org/371543 | 13:53 |
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johnthetubaguy | danpb: is that what you were thinking? ^ | 13:55 |
bauwser | johnthetubaguy: so you force the bridge object type to be VIFBridge AFAICS | 13:55 |
johnthetubaguy | so you looked already, thank you :) | 13:55 |
danpb | perfect | 13:55 |
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bauwser | johnthetubaguy: I don't know which subclasses we have, but are we sure we're not forgetting any ? | 13:55 |
johnthetubaguy | bauwser: basically, I write the code I intended to write the first time around | 13:55 |
danpb | bauwser: its the only one where we have a subclass | 13:55 |
danpb | bauwser: and i'm going to kill the subclassing | 13:56 |
johnthetubaguy | turns out its confusing, yeah, lets kill that | 13:56 |
danpb | bauwser: as this is now the second bug caused by someone forgetting about the subclassing | 13:56 |
bauwser | danpb: okay, I just want to make sure we're not missing any vif type that would be needed to modify the MTU but where it would also be subclassing the bridge class | 13:57 |
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danpb | no, we're fine with this | 13:57 |
johnthetubaguy | hmm, doesn't look like the ovn port profile should have matched anyway :S | 13:57 |
danpb | johnthetubaguy: yes, it would have matched according to the nova-compute.log i looked at | 13:57 |
johnthetubaguy | ah, OK | 13:58 |
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mriedem | yay more unicode fun https://bugs.launchpad.net/nova/+bug/1624277 | 13:58 |
openstack | Launchpad bug 1624277 in OpenStack Compute (nova) mitaka "nova-scheduler: UnicodeDecodeError in host aggregates handling" [Medium,Confirmed] | 13:58 |
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mriedem | johnthetubaguy: danpb: i'm going to recheck the dependent ovn test patch and then will monitor it today | 13:59 |
johnthetubaguy | mriedem: thanks | 13:59 |
mriedem | oh i see rtheis is on it | 14:00 |
cdent | sdague: I resemble that remark | 14:00 |
rtheis | mriedem: yes, thanks for pushing that test patch. I'm traveling a bit this morning so in and out | 14:01 |
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cdent | and thank you for keeping it top level | 14:01 |
johnthetubaguy | danpb: in that failure log I am seeing this: os_vif [req-0a238fc7-a1b5-4775-9dbb-514cd1fab822 tempest-ServerActionsTestJSON-443952496 tempest-ServerActionsTestJSON-443952496] Successfully plugged vif VIFOpenVSwitch(active=False,address=fa:16:3e:c1:6c:c9,bridge_name='br-int',has_traffic_filtering=True,id=14883a5f-8d41-4d98-a90b-2e556c7da15c,network=Network(11936b5d-b863-4b4a-aa02-1053ad6dd0b9),plugin='ovs',port_pro | 14:01 |
johnthetubaguy | file=VIFPortProfileBase,preserve_on_delete=False,vif_name='tap14883a5f-8d') | 14:01 |
openstackgerrit | Daniel Berrange proposed openstack/os-vif: vif: stop VIFOpenVSwitch inheriting VIFBridge https://review.openstack.org/371562 | 14:01 |
sdague | cdent: yeh, well if we are putting meta issues in here, we should definitely reflect all the sides. Though it might be better to break of a dedicated meta issue area, because very little of that has to do with this release cycle | 14:02 |
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danpb | johnthetubaguy: that's just misleading stringification - dunno why its reporting the base class instead of the specific subclass for the port profile | 14:02 |
danpb | nothing ever instantiates VIFPortProfileBase itself | 14:02 |
cdent | sdague: well I'd argue that it's the meta issues that are the fundamentals that cause all the other things, so I like them being here | 14:02 |
johnthetubaguy | danpb: ah, bummer | 14:02 |
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cdent | sdague: but yeah, totally fair | 14:03 |
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danpb | johnthetubaguy: oh its the fault of ovo.fields.Object - its __repr__ impl just reports the internal base class its set up with | 14:04 |
danpb | johnthetubaguy: rather than the actual subclass its value is currently set to | 14:04 |
johnthetubaguy | oh, nasty | 14:04 |
danpb | this didn't matter until we added the 'subclasses=True' parameter to Object field type, to let it accept subclasses | 14:05 |
* danpb looks at a possible fix | 14:05 | |
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danpb | johnthetubaguy: fixed the stringifying of object fields now https://review.openstack.org/371583 | 14:33 |
johnthetubaguy | danpb: nice | 14:34 |
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DaveJ | Hi guys - I added a small spec for a new filter: https://review.openstack.org/#/c/370243/ Do I need to do anything to get this reviewed/approved or does it happen automatically? It's such a small feature I'm not sure it requires a spec? | 14:36 |
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johnthetubaguy | DaveJ: normally filters don't need a spec, although its worth noting master is now ocata | 14:37 |
johnthetubaguy | DaveJ: that filter sounds familiar though, I kinda thought we had something a bit like that already | 14:38 |
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DaveJ | johnthetubaguy: There is a Mutl Tenant one, that works on a filter_tenant_id. But the problem is it only includes 'tenants' as opposed to excludes, which was specific use-case we had. | 14:39 |
kashyap | I don't think there'll be any earth-shattering stuff Friday evening. If there's, I'm sure whoever is in the room post notes to the list... | 14:40 |
kashyap | I don't think there'll be any earth-shattering stuff Friday evening. If there's, I'm sure whoever is in the room might most likely post notes to the list... | 14:40 |
DaveJ | johnthetubaguy: The intention was to use a combination of both filters to restrict/control placement for certian special tenants. | 14:40 |
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kashyap | Errr, I was responding to a stale message from bauwser. And, didn't see the scrollback after that. | 14:41 |
DaveJ | johnthetubaguy: What makes sense, should I just develop against the blueprint, or now that I have a spec, should I re-submit it against ocata | 14:41 |
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johnthetubaguy | DaveJ: I would add the blueprint to the agenda of the next nova meeting, asking if it can be a specless bp | 14:42 |
DaveJ | johnthetubaguy: Thanks. QQ - how do I add it to the agenda :-) | 14:42 |
johnthetubaguy | DaveJ: I am curious why you don't just the exclude option into the existing filter | 14:43 |
johnthetubaguy | DaveJ: just add it in the wiki page: https://wiki.openstack.org/wiki/Meetings/Nova | 14:43 |
iurygregory | hey people o/ Does nova have a feature to update instance information stored in KVM libvirt ? like vcpu_quota ( this can be update using "virsh schedinfo server_id --set vcpu_quota=x") . | 14:43 |
DaveJ | johnthetubaguy: That was one option (I mentioned in the spec :-) ) I could do that - I guess I wasn't sure if the preference to have a filter that does one thing, and does it well | 14:43 |
johnthetubaguy | DaveJ: feels like this is two sides of the same coin | 14:44 |
mriedem | iurygregory: like change the domain xml via the nova api directly? | 14:44 |
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DaveJ | Yeah it is very much. | 14:44 |
iurygregory | mriedem, yeah i think this comand does this | 14:44 |
mriedem | iurygregory: no we don't have something like that | 14:45 |
iurygregory | mriedem, this would be something that fits in nova? | 14:45 |
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mriedem | iurygregory: i think we've pushed back on things like that in the past | 14:46 |
mriedem | you could rebuild the server | 14:46 |
mriedem | iurygregory: maybe ask danpb for his thoughts | 14:47 |
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iurygregory | mriedem, thank you very much | 14:47 |
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danpb | iurygregory: mriedem lol, no way will we ever allow update of libvirt xml via nova apis | 14:48 |
danpb | it would defeat the whole point of the nova api which is to provide a generic XML that works across all virt drivers | 14:48 |
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danpb | s/generic XML/generic API/ | 14:49 |
* mriedem starts working on agent build support for libvirt | 14:49 | |
openstackgerrit | Slawek Kaplonski proposed openstack/nova: [WIP] Fix quota calculation for instances in server_group https://review.openstack.org/371592 | 14:49 |
iurygregory | danpb, humm do you have any idea where this work could be done in openstack? | 14:49 |
danpb | if there's a use case to update some aspect of guest config, we need to explicitly model that in the nova API | 14:49 |
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danpb | and nova would then translate that into the relevant hypervisor specific implementation (xml in libvirt case) | 14:49 |
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iurygregory | well our idea is that we could make the cpu instance more slow so we can do vertical scaling =) | 14:50 |
danpb | on the specific case of wanting to update the schedinfo, I don't think that belongs in nova api at all | 14:50 |
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danpb | performance tunables are something associated with the flavour | 14:50 |
mriedem | yeah i was going to say, rebuild? migrate/resize? | 14:51 |
mriedem | with a different flavor | 14:51 |
danpb | and we don't want to let users arbitrarily tweak flavour settings independantly | 14:51 |
danpb | yeah, it'd have to be done by updating the flavour associated with a guest | 14:51 |
iurygregory | yeah but we need to shutdown instance to change the flavor no? | 14:51 |
mriedem | yes | 14:51 |
mriedem | resize is a cold migratoin | 14:51 |
mriedem | and rebuild, is a rebuild | 14:51 |
danpb | there's a proposal somewhere to do dynamic resize on running guests | 14:52 |
danpb | its doable but seriously non-trivial | 14:52 |
iurygregory | like i had an app running in the instance but i think is running slow, upda the vcpu_quota can give a speedup i would like to not shutdown the instance | 14:52 |
iurygregory | this would be something that only admin can do i think | 14:53 |
danpb | essentially you're saying you picked the wrong flavour to start with | 14:53 |
danpb | and you want your instance in a more powerful flavour | 14:53 |
iurygregory | yeah | 14:54 |
danpb | from the nova api pov, this would have to be a live "switch flavour" kind of operation | 14:54 |
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danpb | and like i said above, this has been proposed, but is not available at this time, and not sure anyone's actively loking at it | 14:54 |
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iurygregory | does it have a bp or spec? | 14:55 |
danpb | there was one somewhere, but can't rememeber what its called | 14:55 |
iurygregory | all specs are in the nova-specs repo? i'll take a look =D | 14:56 |
iurygregory | thanks you very much danpb and mriedem | 14:56 |
mriedem | danpb: yeah that's claudiub|2's live resize spec, which at the midcycle we said we were going to try to get in, but is dependent on the api discoverability stuff first | 14:56 |
danpb | oh right,yeah, that's the one | 14:57 |
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iurygregory | tks :D | 14:57 |
mriedem | iurygregory: https://review.openstack.org/#/c/141219/ | 14:57 |
claudiub|2 | yeah, currently working on the api discoverability stuff | 14:57 |
mriedem | claudiub|2: o/ | 14:58 |
claudiub|2 | might have something working pretty soon | 14:58 |
iurygregory | tks people :D | 14:58 |
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mriedem | cdent: btw, thanks for the feedback in the retrospective, don't want to seem like i'm dumping on you | 15:02 |
cdent | mriedem: I often find myself as the token outspoken person, so I'm kind of used to it. | 15:02 |
cdent | mriedem: I was gonna write down on there, but I'm not quite sure how to put it eloquently: It can feel _really_ risky to blow ones karma-wad on things like this, even though it is important. | 15:03 |
cdent | I've had more than one person thank me already today for "continuing to push on these issues" | 15:03 |
mriedem | dirty | 15:03 |
cdent | that that is happening is a) sad b) bad | 15:04 |
cdent | of course the more it happens, the more I feel I ought to be "that guy" because somebody has to do it, and the more I worry about my precious wad | 15:05 |
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figleaf | cdent: guard it. Mine was spent a long time ago | 15:08 |
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mriedem | johnthetubaguy: https://review.openstack.org/#/c/371543/ +W | 15:09 |
mriedem | thanks | 15:09 |
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johnthetubaguy | mriedem: ah, cool | 15:09 |
cdent | figleaf: :( that's a) sad b) bad c) trending towards some horrible puns | 15:09 |
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figleaf | cdent: well, you chose that image | 15:10 |
cdent | I couldn't help myself! | 15:10 |
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mriedem | johnthetubaguy: pep8 :( | 15:13 |
mriedem | http://logs.openstack.org/43/371543/2/check/gate-nova-pep8-ubuntu-xenial/a3c5a32/console.html#_2016-09-16_13_58_58_572834 | 15:13 |
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openstackgerrit | Matt Riedemann proposed openstack/nova: Stop ovn networking failing on mtu https://review.openstack.org/371543 | 15:14 |
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mriedem | fixed | 15:15 |
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mriedem | cfriesen: i thought you fixed something like this? https://bugs.launchpad.net/nova/+bug/1624052 | 15:28 |
openstack | Launchpad bug 1624052 in OpenStack Compute (nova) "Evacuation fails with VirtualInterfaceCreateException" [Undecided,New] | 15:28 |
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lyarwood | mriedem: https://bugs.launchpad.net/nova/+bug/1430042 right? | 15:29 |
openstack | Launchpad bug 1430042 in Ubuntu Trusty "Virtual Machine could not be evacuated because virtual interface creation failed" [Undecided,New] | 15:29 |
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kashyap | Yeah, they both look similar | 15:31 |
kashyap | Also, just to confuse a bit more, this looks similar too -- https://bugs.launchpad.net/mos/+bug/1590490 | 15:31 |
openstack | Launchpad bug 1590490 in Mirantis OpenStack 9.x "Vm evacuation fails with error 'Virtual Interface creation failed'" [High,In progress] - Assigned to Roman Podoliaka (rpodolyaka) | 15:31 |
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kashyap | Duh, that's Mirantis specific. | 15:32 |
* kashyap should stop multi-tasking, as humanly as possible | 15:33 | |
lyarwood | well it points to https://review.openstack.org/#/c/331707 so not really | 15:33 |
cfriesen | mriedem: sort of sounds familiar, let me take a look | 15:33 |
mriedem | lyarwood: heh well it has cfriesen's name on it :) | 15:34 |
lyarwood | mriedem: yeah sorry this just came up downstream while artom is out for the morning | 15:35 |
mriedem | https://review.openstack.org/#/c/169827/ | 15:35 |
mriedem | lyarwood: any idea what release? | 15:36 |
lyarwood | mriedem: reported against Liberty 12.0.2 | 15:36 |
mriedem | https://review.openstack.org/#/c/169827/ is in liberty 12.0.0 | 15:36 |
lyarwood | yup so that's not it, https://bugs.launchpad.net/nova-powervm/+bug/1535918 looks like a better bug report btw | 15:37 |
openstack | Launchpad bug 1535918 in OpenStack Compute (nova) "instance.host not updated on evacuation" [Undecided,In progress] - Assigned to Sridhar Venkat (svenkat) | 15:37 |
lyarwood | nova-power but has a change attached that looks to be in progress for nova | 15:38 |
kashyap | In unrelated news, /me is struggling to reproduce this race condition, with CirrOS at least. Tomorrow will be a better day, should try with larger Nova instances -- https://bugs.launchpad.net/nova/+bug/1421550 | 15:39 |
openstack | Launchpad bug 1421550 in OpenStack Compute (nova) "Creating VM image fails under the race condition with detaching volume" [Medium,In progress] - Assigned to ugvddm (271025598-9) | 15:40 |
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mriedem | lyarwood: good find | 15:41 |
mriedem | anyway, i have to head out for the afternoon, mandatory volunteer work | 15:41 |
cmartin | If anybody is available I have a patch up for a bugfix here that needs some reviews: https://review.openstack.org/#/c/370861/ | 15:43 |
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mriedem | cmartin: did you see comments in https://review.openstack.org/#/c/287774/ ? | 15:46 |
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cmartin | mriedem: hold on let me look I was looking more at https://review.openstack.org/#/c/202379/ and addressing those concerns | 15:48 |
mriedem | cmartin: if you want to address the comments in the original proposed fix then we can restore that rather than push a duplicate fix | 15:49 |
cmartin | mriedem: more specifically making sure if exceptions were thrown in instsance start up that they wouldn't be as obscure | 15:49 |
cfriesen | mriedem: bug #1430042 is the one I fixed | 15:49 |
openstack | bug 1430042 in Ubuntu Trusty "Virtual Machine could not be evacuated because virtual interface creation failed" [Undecided,New] https://launchpad.net/bugs/1430042 | 15:49 |
mriedem | ok, have to run | 15:50 |
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openstackgerrit | ianeta hutchinson proposed openstack/nova: Updates URL and removes trailing characters https://review.openstack.org/368185 | 15:51 |
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cmartin | How do I 'unabandon' a previous patch so I can commit to that instead of my own patch then? | 15:55 |
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figleaf | cmartin: IIRC, only the patch owner or a core can unabandon | 15:57 |
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cfriesen | random question...what's the right thing to do when an auth token expires during a long-running operation? | 16:03 |
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cmartin | Is there a core reviewer here that can unabandon this patch: https://review.openstack.org/#/c/287774/ | 16:05 |
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figleaf | cfriesen: the pattern I've used is to catch the auth failure and retry once. If success, it's a token expiration. If fail, it's a general auth issue | 16:05 |
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cfriesen | figleaf: catch the auth failure where? in nova, or in the code that issued the nova request? | 16:06 |
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cfriesen | the issue I'm seeing is someone issuing a request from horizon right before the horizon auth expires, so that it's expired by the time nova uses it to request something from neutron. | 16:08 |
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clarkb | cfriesen: I want to say keystoneauth tries to avoid that by renewing tokens that are near expiration. But I think if an auth fail does occur anyways it bubbles that up | 16:10 |
artom | mriedem_afk, lyarwood, thanks for pointing out bug 1535918 as a potential duplicate of 1624052 | 16:11 |
openstack | bug 1535918 in OpenStack Compute (nova) "instance.host not updated on evacuation" [Undecided,In progress] https://launchpad.net/bugs/1535918 - Assigned to Sridhar Venkat (svenkat) | 16:11 |
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lyarwood | artom: np :) | 16:11 |
artom | Not entirely sure the fix https://review.openstack.org/#/c/331707 is appropriate, so I'll need to actually set up an environment (yey multihost Neutron :/ ) and check | 16:11 |
figleaf | cfriesen: well, that's the tricky part. If there is a single point where requests are made, then you can just wrap that in a try/except to catch the auth failure | 16:12 |
figleaf | cfriesen: you could also just create a decorator to do this, and add that to long-running methods | 16:12 |
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lascii | cmartin: I restored that patch for you | 16:18 |
cmartin | lascii: thankyou | 16:18 |
openstackgerrit | Christopher Martin proposed openstack/nova: Fix for resize vm_state stopped rollback https://review.openstack.org/287774 | 16:19 |
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kfox1111 | seing a weird error. in nova-conductor, once a minute, its complaining about rpc message timeouts. | 16:21 |
kfox1111 | any idea what might cause that? | 16:21 |
kfox1111 | laucnhing vm's seems to be working fine though. | 16:21 |
kfox1111 | and nova service-list shows everything happy. | 16:21 |
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johnthetubaguy | kfox1111: have you got the logs somewhere, sounds a periodic task somewhere | 16:29 |
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kfox1111 | yeah. but nothing obvious in the logs. | 16:33 |
kfox1111 | they are just coming out of nova conductor. | 16:33 |
kfox1111 | and they look like: | 16:33 |
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kfox1111 | http://pastebin.com/4BDmgc3C | 16:34 |
kfox1111 | not really figuring out a way to figure out what the destination if the rpc is. | 16:34 |
kfox1111 | doing a tcpdump shows it only talking to rabbit/mariadb. | 16:35 |
kfox1111 | no queue in rabbit shows a pile up of messages. | 16:35 |
kfox1111 | just periodic spikes of messages when nova-conductor's doing this. | 16:36 |
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johnthetubaguy | you are seeing that in the nova-conductor logs? | 16:37 |
kfox1111 | do you know what activities run once a minute in nova-conductor? | 16:37 |
kfox1111 | yeah. | 16:37 |
kfox1111 | and what they try and talk to? | 16:37 |
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johnthetubaguy | looks like object back leveling is happening, which shouldn't be possible | 16:37 |
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johnthetubaguy | have all your nova-conductors being upgraded to the newest version? | 16:37 |
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johnthetubaguy | I really mean, non of your conductors are running old code | 16:38 |
kfox1111 | yeah. | 16:38 |
kfox1111 | I don't think so. | 16:38 |
kfox1111 | one compute one condroller in this test box. all in one. | 16:38 |
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johnthetubaguy | running master? | 16:39 |
kfox1111 | mitaka | 16:39 |
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kfox1111 | I didn't build the config files, so maybe something odd there? | 16:39 |
johnthetubaguy | unsure, its possible | 16:40 |
johnthetubaguy | looks like I am missing the log context in there though | 16:40 |
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johnthetubaguy | something above there should give some hints | 16:40 |
kfox1111 | k. let me look. | 16:41 |
johnthetubaguy | need to know what other logs say for req-d3bc25a4-30e0-4359-8e7e-de7f6cef9d90 | 16:41 |
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johnthetubaguy | its possible the periodic context, but good to know these things | 16:41 |
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kfox1111 | not much... I hit enter a bunch of time, waited a minute, then got the top of the stuff: http://pastebin.com/xFbmPKbk | 16:44 |
kfox1111 | looks pretty similar to the first one. | 16:44 |
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johnthetubaguy | kfox1111: are there no logs before that error log? | 16:45 |
johnthetubaguy | kfox1111: note, the log I need will have been 60 seconds before the ERROR log | 16:45 |
kfox1111 | just more of the same. :/ | 16:46 |
johnthetubaguy | kfox1111: maybe turn on debug logs? maybe we are only getting ERROR logs here | 16:46 |
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johnthetubaguy | looks a bit like an infinite loop of the conductor setting RPC messages to its-self and not getting a reply... not seen that before | 16:47 |
kfox1111 | let me send you the whole log. | 16:48 |
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kfox1111 | actually, let me send you only the first 1000 lines.... :) | 16:51 |
johnthetubaguy | heh. yeah | 16:51 |
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kfox1111 | k. pm'ed you. | 16:53 |
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kfox1111 | Number of call queues is greater than warning threshold: 40. There could be a leak. Increasing threshold to: 80 <- maybe? | 16:54 |
kfox1111 | I don't see a lot of queues in rabbit though, so not sure what its talking about. | 16:58 |
johnthetubaguy | there are the temp queues that get created for RPC calls, not sure how they appear | 17:00 |
kfox1111 | I see 8 reply_<uuid> queues in rabbit. | 17:01 |
kfox1111 | one of them periodically gets busy at the smae time the conductor queue does. | 17:02 |
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kfox1111 | and its one nova-conductor's listening on. | 17:03 |
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kfox1111 | should I burn down that queue? | 17:03 |
kfox1111 | / restart nova-conductor? | 17:03 |
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johnthetubaguy | I am not sure, dansmith might have a better idea on this | 17:04 |
johnthetubaguy | it looks like your conductor is triggering an object version backport | 17:05 |
johnthetubaguy | here: https://github.com/openstack/nova/blob/master/nova/objects/base.py#L259 | 17:05 |
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johnthetubaguy | but the basic idea is that should never happen, because the conductor is always running the newest code | 17:05 |
johnthetubaguy | a restart might help make sure its not running some old version of the code I guess? | 17:05 |
kfox1111 | hmm.... | 17:06 |
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johnthetubaguy | its like one of the services talking to the conductor is sending new messages it doesn't understand | 17:06 |
kfox1111 | ok. one possiblility... I'm testing with an ubuntu nova compute and a centos nova-conductor. | 17:06 |
johnthetubaguy | yeah, the versions are not matching here | 17:06 |
kfox1111 | so maybe it thinks the ubuntu one's a bit newer? | 17:07 |
johnthetubaguy | yeah, that would cause this problem | 17:07 |
johnthetubaguy | it might be they have backported some stuff that increases some object versions | 17:07 |
kfox1111 | ok. I'll redeploy it with ubuntu nova everything and see if that helps. | 17:07 |
johnthetubaguy | its not allowed, but they could have | 17:07 |
kfox1111 | ah. | 17:07 |
kfox1111 | ok. thanks for the help. | 17:08 |
johnthetubaguy | no worries, that was kinda interesting | 17:08 |
johnthetubaguy | I would add logs into here, if you want to confirm whats going on: https://github.com/openstack/nova/blob/master/nova/objects/base.py#L270 | 17:08 |
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kfox1111 | ok. thanks. :) | 17:09 |
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kfox1111 | yup. that seems to have fixed it. :/ | 17:20 |
kfox1111 | sorry for the noise. :) | 17:20 |
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cfriesen | so given the timing, am I right in assuming that https://review.openstack.org/#/c/286744 and its related changes won't be making it in for N? | 17:38 |
cfriesen | it's too bad, since this is needed for anything close to reliable live migration of instances with pinned CPUs. | 17:38 |
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artom | I'd spin it as a feature: "Nova does Strong CPU pinning. Once a CPU is pinned, it can only be unpinned by Act of Congress." | 17:42 |
cfriesen | lol | 17:42 |
cfriesen | "not just cpu pinning, but node pinning too!" | 17:42 |
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openstackgerrit | jichenjc proposed openstack/nova: Add hypervisor_links into hypervisor v2.33 https://review.openstack.org/370732 | 18:08 |
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openstackgerrit | jichenjc proposed openstack/nova: Add keypairs_links into resp https://review.openstack.org/370760 | 18:19 |
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diana_clarke | Now that master is open again... | 18:31 |
diana_clarke | If anyone wants something easy and boring to review on a Friday, there are always the last of the database poison warnings: https://review.openstack.org/#/q/project:openstack/nova+branch:master+topic:bug/1568414 | 18:31 |
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openstackgerrit | jichenjc proposed openstack/nova: Add description for v2.20 changes in api-ref https://review.openstack.org/371458 | 18:41 |
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openstackgerrit | Pushkar Umaranikar proposed openstack/nova: os-vif pollute test output https://review.openstack.org/371785 | 20:01 |
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openstackgerrit | Pushkar Umaranikar proposed openstack/nova: os-vif pollute test output https://review.openstack.org/371785 | 20:20 |
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slaweq_ | melwitt: hello | 20:46 |
melwitt | slaweq_: hi | 20:48 |
slaweq_ | melwitt: I have a question about https://bugs.launchpad.net/nova/+bug/1623809 - what specs should be made for this change? in related which You linked there is info that nova fails always when max-count of instances can't be spawned | 20:48 |
openstack | Launchpad bug 1623809 in OpenStack Compute (nova) "Quota exceeded when spawning instances in server group" [Undecided,In progress] - Assigned to Slawek Kaplonski (slaweq) | 20:48 |
slaweq_ | but as I checked it it's not true. I tested (without server groups) --min-count=5 and --max-count=15 and 10 instances was spawned because I had quota for instances set to 10 | 20:49 |
slaweq_ | IMHO everything was working fine there except that case which I described | 20:50 |
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slaweq_ | I also made "small" patch to fix it, can You maybe take a look on it in meantime | 20:50 |
melwitt | slaweq_: oh, hm | 20:50 |
slaweq_ | there is no tests for this patch yet but in my "manual" tests on devstack it was working today | 20:51 |
slaweq_ | or maybe I missed something and it should works in different way? | 20:51 |
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melwitt | let me look at that bug again. I thought it was saying a request (without server groups involved) would get kicked out if max-count couldn't be fulfilled | 20:51 |
slaweq_ | melwitt: no, I described there only case with server-group provided | 20:52 |
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melwitt | oh, okay | 20:55 |
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melwitt | there's been debate in the past over how it should work. currently, for all cases (with and without server groups) the min_count doesn't behave the way one would expect. and there are differing opinions on that | 20:57 |
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slaweq_ | ah, so bug which I reported is not bug in fact, right? | 20:59 |
melwitt | so I was trying to say it will take a bit of discussion to get things rolling and a spec proposed that describes how min_count and max_count should behave and apply it consistently wherever it's used | 20:59 |
melwitt | eh, it's debatable. I personally think the treatment of min_count is wrong/unexpected. in the past I think we couldn't move forward to change it because we didn't have api microversions like we do now | 21:00 |
slaweq_ | so, can I ask how for You should works min-count and max-count? | 21:02 |
openstackgerrit | Sivasathurappan Radhakrishnan proposed openstack/nova: Improve help text for ldap_dns_opts https://review.openstack.org/341984 | 21:02 |
slaweq_ | because for me it should try to spawn as much instances as is possible from range <min-count, max-count> given by user | 21:03 |
melwitt | I think the same as you and cfriesen that if min_count can be fulfilled, it should do that | 21:03 |
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melwitt | there has been some talk of removing the multi create api in the past, I think that was maybe another reason this didn't go forward | 21:04 |
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melwitt | so, it's a bit of a challenging subject. if you'll be at the summit, it would be a good thing to sign up for an unconference slot, or you can start a conversation on the dev ML or at a nova meeting to get some other input and find out how/if to move forward | 21:06 |
slaweq_ | melwitt: ok, I will try to test all (I hope) possibilities to spawn instances with min/max-count and with/without server_groups and summarize next week. I will then send email about that to ML | 21:07 |
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slaweq_ | I will be on summit also so I would be pleased if we could talk about that then :) | 21:07 |
melwitt | I would expect it's something we could do with a new microversion, so it would be a matter of writing up a small spec to describe the behavior and getting consensus and approval on how it should work, then make the changes | 21:07 |
melwitt | but others might disagree with me :) | 21:08 |
slaweq_ | ok, thx for help on that topic | 21:08 |
melwitt | sure | 21:09 |
openstackgerrit | Slawek Kaplonski proposed openstack/nova: Clean up libvirt guest code https://review.openstack.org/365756 | 21:10 |
kevinbenton | johnthetubaguy: yo | 21:11 |
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armax | mriedem: ping | 22:51 |
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