| Posted | Nick | Remark | |
|---|---|---|---|
| #openstack-nova - 2017-03-29 | |||
| 15:42:08 | jaypipes | sfinucan: you good on https://review.openstack.org/#/c/400877/? | |
| 15:42:18 | openstackgerrit | Maciej Szankin proposed openstack/nova master: conf: remove *_topic config opts https://review.openstack.org/433924 | |
| 15:42:52 | sfinucan | jaypipes: Hmm, don't know why I missed that. Checking now | |
| 15:57:26 | openstackgerrit | Sujitha proposed openstack/nova master: Adding tags field to InstancePayload https://review.openstack.org/407228 | |
| 15:57:51 | mriedem | lyarwood: first thing i noticed right away https://review.openstack.org/#/c/439520/ | |
| 15:59:48 | johnthetubaguy | mriedem: dam it, I -1ed for that in a previous version | |
| 16:01:10 | mriedem | sure you did, sure you did | |
| 16:01:12 | mriedem | :P | |
| 16:04:12 | mdbooth | mriedem: Incidentally, I also wanted to highlight this patch to you: https://review.openstack.org/#/c/445142/ | |
| 16:04:46 | mdbooth | As I said to dansmith, it's not that important itself, but it demonstrates using object context when you've got a bunch of instances from different cells | |
| 16:04:49 | vks1 | hi, how does nova configure tag for VM ports ? | |
| 16:05:12 | mdbooth | So as well as being less error prone, it can also be more efficient | |
| 16:05:36 | vks1 | I see for 2 ports of a network on different compute has different tag. | |
| 16:06:33 | vks1 | is this valid ? can someone point to the document for the behavior ? | |
| 16:07:29 | mriedem | vks1: you want to talk to artom | |
| 16:07:42 | mriedem | mdbooth: https://review.openstack.org/#/c/439520/ is my goal for the week | |
| 16:07:56 | artom | vks1, heya | |
| 16:08:04 | vks1 | mriedem: thanks | |
| 16:08:04 | artom | vks1, I don't understand your question :( | |
| 16:08:07 | mdbooth | mriedem: You mean the actual detach calls, right? ;) | |
| 16:08:59 | clarkb | kashyap: mdbooth: hello, right now three of the four top bugs tracked by elastic-recheck originate in libvirt http://status.openstack.org/elastic-recheck/index.html#1643911 http://status.openstack.org/elastic-recheck/index.html#1638982 http://status.openstack.org/elastic-recheck/index.html#1646779 I know kashyap has poked at these in the past, but would it be possible to try and figure out these | |
| 16:09:01 | clarkb | issues? ianw started working on getting devstack to collect core dumps (though those aren't thought to be of help here) and was going to try running libvirt under electric fence. Maybe we can get a small group of people to coordinate around this and work together? | |
| 16:09:02 | vks1 | artom: I have 2 VMs launched on 2 different compute. When I see the tap ports on OVS , on one compute I see tag:1 and on other compute its tag:3 | |
| 16:09:24 | vks1 | artom: both the VMs are of same n/w | |
| 16:09:33 | kashyap | clarkb: Hi there, I've seen yours and Ian's responses in the Inbox, but I still haven't had a chance to act on them | |
| 16:09:44 | kashyap | clarkb: Yeah, core dumps won't help in this case | |
| 16:09:58 | artom | vks1, err, you set the tags yourself at instance create? | |
| 16:10:00 | kashyap | clarkb: At least that's what the libvirt dev involved (Michal Privoznik) said | |
| 16:10:06 | vks1 | artom: no | |
| 16:10:19 | artom | vks1, err, which tags are you talking about then? | |
| 16:10:29 | mdbooth | clarkb: Couple of things, I posted an update to ianw 's patch which enables efence and also works on Fedora: https://review.openstack.org/#/c/451430/ | |
| 16:10:33 | clarkb | kashyap: ianw figured it was something devstack should do anyways so wouldn't hurt to have it, then we can actually rule it out as not being helpful | |
| 16:10:48 | vks1 | artom: Port "tap319bae97-0b" | |
| 16:10:48 | vks1 | tag: 1 | |
| 16:10:48 | vks1 | Interface "tap319bae97-0b" | |
| 16:10:49 | mdbooth | clarkb: Secondly, I think we have to treat this as a downstream Ubuntu bug | |
| 16:10:52 | mriedem | mdbooth: i want to get that refactor merged this week | |
| 16:10:56 | kashyap | clarkb: Oh that's certainly true -- having a coredump ready, it's super easy with systemd :-) | |
| 16:11:06 | artom | vks1, what is that the output of? | |
| 16:11:09 | kashyap | clarkb: I mean, having them available in general | |
| 16:11:15 | mdbooth | clarkb: The Ubuntu maintainers need to look at this | |
| 16:11:16 | clarkb | mdbooth: it certainly affects ubuntu (I don't have evidence of it affecting fedora or centos), but that doesn't necessarily mean its their bug | |
| 16:11:17 | vks1 | artom: ovs-vsctl show | |
| 16:11:20 | artom | vks1, I have a feeling you're talking about vlan ids... | |
| 16:11:27 | vks1 | artom: yeah | |
| 16:11:35 | clarkb | mdbooth: the last time we had a similar situation it was very clearly libvirts bug once someone from libvirt actually looked at it (instead of blaming ubuntu) | |
| 16:11:49 | mdbooth | clarkb: As I said in some LP bug somewhere, upstream libvirt aren't going to be that interested in this, because it's not the latest stable release | |
| 16:11:54 | artom | mriedem, you volunteered me for the wrong thing dude ;) | |
| 16:12:12 | mdbooth | clarkb: A libvirt maintainer has already looked, and doesn't think it's broken in the latest stable release | |
| 16:12:15 | artom | vks1, so... different ports have different vlans? | |
| 16:12:15 | mriedem | artom: redirect to vladikr? | |
| 16:12:28 | vks1 | artom: yeah | |
| 16:12:28 | mriedem | artom: delegation is the sign of true leadership :) | |
| 16:12:39 | artom | mriedem, *proper* delegation ;) | |
| 16:12:52 | artom | vks1, so is that bad? What's your expectation? | |
| 16:12:57 | kashyap | mdbooth: To answer your question from earlier in the day -- it's not actually the same bug as this one (https://bugs.launchpad.net/nova/+bug/1673483) | |
| 16:12:57 | openstack | Launchpad bug 1673483 in libvirt (Ubuntu) "libvirt: test_attach_volume_shelved_or_offload_server times out waiting for device detach (which fails)" [Medium,Triaged] | |
| 16:12:59 | vladikr | :) | |
| 16:13:05 | kashyap | mdbooth: Where danpb identified the missing patches | |
| 16:13:19 | vks1 | artom: thanks vladikr is here | |
| 16:13:21 | clarkb | mdbooth: ok, this is frustrating because have had had similar issues in the past with the same exact attitude from upstream and the end result was libvirt had a terrible bug in it that affected every version since the code went in | |
| 16:13:33 | clarkb | and it took months to get fixed because no one would look at it for more than 5 minutes | |
| 16:13:42 | vks1 | artom: vlan tagging should be same | |
| 16:13:45 | clarkb | I'm not saying thats the case here, but that attitude hasn't been productive in the past | |
| 16:13:47 | vks1 | vladikr: hi | |
| 16:14:19 | kashyap | mdbooth: Because, the Nova stack traces are different from both bugs, that's why we didn't close them as duplicates | |
| 16:14:25 | openstackgerrit | Sujitha proposed openstack/nova master: Adding tags field to InstancePayload https://review.openstack.org/407228 | |
| 16:14:25 | mdbooth | clarkb: Well, we're running our CI on unmaintained, unsupported infrastructure | |
| 16:14:47 | vks1 | vladikr: I have 2 VMs launched on 2 different compute. When I see the tap ports on OVS , on one compute I see tag:1 and on other compute its tag:3 . both the VMs are of same n/w. | |
| 16:14:49 | mdbooth | clarkb: Support for that is always going to be frustrating | |
| 16:14:51 | vladikr | vks1, Hi, let me just read up. | |
| 16:14:59 | kashyap | clarkb: Speaking of attitudes, I'd argue (not the first one) that Virt maintainance on Ubuntu is a joke | |
| 16:15:18 | clarkb | where do I find the list of supported versions of libvirt? | |
| 16:15:27 | mdbooth | clarkb: To be clear... what kashyap said | |
| 16:15:57 | kashyap | clarkb: BTW, even for this bug -- https://bugs.launchpad.net/nova/+bug/1673483 | |
| 16:15:57 | openstack | Launchpad bug 1673483 in libvirt (Ubuntu) "libvirt: test_attach_volume_shelved_or_offload_server times out waiting for device detach (which fails)" [Medium,Triaged] | |
| 16:15:57 | clarkb | https://libvirt.org/downloads.html#maintenance ? | |
| 16:15:59 | mriedem | clarkb: https://wiki.openstack.org/wiki/LibvirtDistroSupportMatrix | |
| 16:16:08 | mriedem | mdbooth: what do you mean we're running on unmaintained infra? | |
| 16:16:14 | mriedem | we're running on 16.04 LTS right? | |
| 16:16:15 | kashyap | clarkb: I had to spend a good half a day talking to upstream libvirt, who identified what exact commits Ubuntu should backport | |
| 16:16:25 | mdbooth | mriedem: Sure. Lets file a bug there. | |
| 16:16:41 | clarkb | kashyap: that bug doesn't seem to be one of the ones we are tracking though? | |
| 16:16:41 | kashyap | So they don't even bother to look at what's breaking, and simply apply the available bug fixes | |
| 16:17:09 | mdbooth | mriedem: I just think it's unreasonable to expect upstream libvirt to spin their wheels on this. | |
| 16:17:10 | kashyap | clarkb: No, it's not. Was just giving an example, that upstream spends more time than is fair (in some cases) with downstream distrubtions | |
| 16:17:18 | clarkb | kashyap: gotcha | |
| 16:17:20 | mriedem | if libvirt devs have identified fixes that are needed in https://bugs.launchpad.net/nova/+bug/1673483 then we can reach out to jamespage and/or coreycb for help i'd think | |
| 16:17:20 | openstack | Launchpad bug 1673483 in libvirt (Ubuntu) "libvirt: test_attach_volume_shelved_or_offload_server times out waiting for device detach (which fails)" [Medium,Triaged] | |
| 16:18:03 | gabor_antal | Sorry for the slightly off topic, I have a question: Some time before I read an article about the effect of the VM workloads which are on the same physical host, but I cannot find it. Can someone please help me with it? | |
| 16:19:09 | clarkb | kashyap: mdbooth is http://wiki.libvirt.org/page/Maintenance_Releases#1.3.3_series what would be considered the most current supported release? | |
| 16:19:32 | kashyap | clarkb: I guess there's a more automated version -- was there one? mriedem? | |
| 16:19:50 | kashyap | (Version of a wiki page I mean) | |
| 16:20:28 | mriedem | i only looked at https://wiki.openstack.org/wiki/LibvirtDistroSupportMatrix | |
| 16:20:29 | kashyap | mriedem: Disregard me, please. | |
| 16:20:29 | clarkb | https://wiki.openstack.org/wiki/LibvirtDistroSupportMatrix shows what linux distros are supporting downstream of libvirt, I'm looking for what upstream libvirt considers supported | |
| 16:20:32 | mriedem | i'm not sure i understand the question | |
| 16:20:37 | mdbooth | clarkb: Well latest stable is 2.2 | |
| 16:20:55 | clarkb | mdbooth: ok so stable and maintenance are different /me keeps reading | |
| 16:20:59 | mdbooth | clarkb: I'm guessing that in practise backporting to 1.3 is best effort | |