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#openstack-nova - 2019-06-22
08:36:06 openstackgerrit Takashi NATSUME proposed openstack/nova master: Fix default values in update_cell command https://review.opendev.org/662383
13:22:43 openstackgerrit Matt Riedemann proposed openstack/nova stable/stein: Add functional recreate test for regression bug 1825537 https://review.opendev.org/666959
13:22:45 openstack bug 1825537 in OpenStack Compute (nova) "finish_resize failures incorrectly revert allocations" [Medium,In progress] https://launchpad.net/bugs/1825537 - Assigned to Matt Riedemann (mriedem)
#openstack-nova - 2019-06-23
09:13:10 openstackgerrit Merged openstack/nova master: docs: Rework all things metadata'y https://review.opendev.org/640730
09:13:18 openstackgerrit Merged openstack/nova master: conf: Rename 'configuration drive' to 'config drive' https://review.opendev.org/641723
13:40:32 Nick_A why would openstack metadata not have password when configdrive does?
15:34:23 openstackgerrit Merged openstack/nova master: Remove deprecated arguments in db sync command https://review.opendev.org/666470
22:21:01 openstackgerrit sean mooney proposed openstack/nova master: [DNM] testing bug/1813789 revert resize events https://review.opendev.org/664442
#openstack-nova - 2019-06-24
01:10:27 openstackgerrit Takashi NATSUME proposed openstack/nova master: doc: Fix nova-manage cell_v2 list_cells output https://review.opendev.org/666995
02:24:10 openstackgerrit Takashi NATSUME proposed openstack/nova master: Add a live migration regression test https://review.opendev.org/641200
02:29:04 openstackgerrit Takashi NATSUME proposed openstack/nova master: Remove mox in virt/test_block_device.py https://review.opendev.org/566153
02:29:18 openstackgerrit Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (13) https://review.opendev.org/576020
02:31:37 openstackgerrit Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (14) https://review.opendev.org/576027
02:31:51 openstackgerrit Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (15) https://review.opendev.org/576031
02:46:25 openstackgerrit Takashi NATSUME proposed openstack/python-novaclient master: Add a guide to add a new microversion support https://review.opendev.org/667002
03:53:31 openstackgerrit Merged openstack/nova master: extend libvirt video model support https://review.opendev.org/647733
04:11:20 openstackgerrit Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (16) https://review.opendev.org/576299
04:11:35 openstackgerrit Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (17) https://review.opendev.org/576344
04:11:53 openstackgerrit Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (18) https://review.opendev.org/576673
05:32:47 openstackgerrit Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (19) https://review.opendev.org/576676
05:33:08 openstackgerrit Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (20) https://review.opendev.org/576689
05:33:24 openstackgerrit Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (21) https://review.opendev.org/576709
05:33:43 openstackgerrit Takashi NATSUME proposed openstack/nova master: Remove mox in unit/network/test_neutronv2.py (22) https://review.opendev.org/576712
07:50:39 openstackgerrit Slawek Kaplonski proposed openstack/nova master: Revert "Revert resize: wait for events according to hybrid plug" https://review.opendev.org/667035
08:36:28 lyarwood ~.
08:55:36 bhagyashris Hi all, I am trying to live migrate the instance but getting this error: http://paste.openstack.org/show/753291/ on nova compute side can any one have nay idea about the same?
08:57:12 kashyap bhagyashris: My first guess from the error is that you don't have enough free RAM.
08:57:44 kashyap Oh, wait. Thre's also a "length mismatch" error
09:00:14 kashyap bhagyashris: What distro is this, and what are you rversions of libvirt and QEMU?
09:03:53 openstackgerrit Lee Yarwood proposed openstack/nova master: libvirt: flatten rbd images when unshelving an instance https://review.opendev.org/457886
09:05:48 bhagyashris kashyap: Hi, I have pasted all details here : http://paste.openstack.org/show/753292/ please check and let me know.
09:08:23 stephenfin bhagyashris: This looks relevant https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1713490
09:08:24 openstack Launchpad bug 1713490 in Ubuntu Cloud Archive "error migrating blocked on virtio-net-pci.rom" [Undecided,Confirmed]
09:08:47 stephenfin bhagyashris: As does this https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg01663.html
09:09:38 kashyap stephenfin: You wouldn't believe: that "Length mismatch" is the improved (unactionable) error from QEMU
09:09:50 kashyap s/improved/"improved"/ (missed the scare quotes :D)
09:10:04 stephenfin o rly?
09:10:18 kashyap Yeah, checking with Dave from QEMU, he says:
09:10:29 kashyap < dgilbert> kashyap: So, that's a packaging bug for their virtio rom; they need to pad
09:11:26 kashyap stephenfin: Reference for the "improvement" (it actually _is_, though, relative to the previous one): https://bugzilla.redhat.com/show_bug.cgi?id=1090093
09:11:27 openstack bugzilla.redhat.com bug 1090093 in libvirt "Improve error reporting when QEMU fails with incoming migration" [Unspecified,Closed: errata] - Assigned to jdenemar
09:13:12 kashyap bhagyashris: So I was told it's a distribution bug, so please file with Ubuntu. (Where the packager needs to pad the ROM with 0 bytes, using `dd`.) thanks, Dave Gilbert for the suggestion.
09:18:45 openstackgerrit Takashi NATSUME proposed openstack/nova master: Add database schema upgrade check https://review.opendev.org/667047
09:32:25 openstackgerrit Sam Morrison proposed openstack/nova stable/rocky: Fix double word hacking test https://review.opendev.org/665788
09:33:30 openstackgerrit Sam Morrison proposed openstack/nova stable/queens: Fix double word hacking test https://review.opendev.org/665790
09:39:45 bhagyashris kashyap: ok thank you! So for workaround I will set the kvm version same for both the machine and will try .
09:40:02 kashyap bhagyashris: Also see the guidance here: https://wiki.qemu.org/Features/Migration/Troubleshooting#Length_mismatch:_....:_...._in_.21.3D_.....
09:40:07 kashyap It does require work from distros.
09:43:02 bhagyashris kashyap: ok you mean it should install through bistro?
09:43:09 bhagyashris distro*
09:43:40 kashyap bhagyashris: I mean, there is an action item for Ubuntu QEMU packager to "pad the ROM" (it's a low-level thing)
09:50:48 lwq Hi there, I would like to discuss possible improvement of nova resize/migrate process - I mean the SCP part … Anyone with experience with this topic? :-)
10:20:19 openstackgerrit Merged openstack/python-novaclient master: Fix duplicate object description error https://review.opendev.org/666203
10:22:31 bhagyashris kashyap: ohh ok thank you !
10:35:22 openstackgerrit Stephen Finucane proposed openstack/nova master: hacking: Resolve W503 (line break occurred before a binary operator) https://review.opendev.org/651555
10:35:23 openstackgerrit Stephen Finucane proposed openstack/nova master: hacking: Resolve W605 (invalid escape sequence) https://review.opendev.org/652104
10:35:23 openstackgerrit Stephen Finucane proposed openstack/nova master: hacking: Resolve E741 (ambiguous variable name) https://review.opendev.org/652103
10:35:24 openstackgerrit Stephen Finucane proposed openstack/nova master: tests: Use consistent URL regex substitution https://review.opendev.org/665949
10:35:44 openstackgerrit Alex Xu proposed openstack/nova master: Assign the request_spec's network_metadata after create https://review.opendev.org/667061
10:36:04 openstackgerrit Slawek Kaplonski proposed openstack/nova master: Revert "Revert resize: wait for events according to hybrid plug" https://review.opendev.org/667035
10:51:09 alex_xu stephenfin: something should be under your radar https://review.opendev.org/667061
10:51:22 stephenfin alex_xu: Looking at it at the moment :)
11:45:31 NewBruce3 has anyone ever been able to live migrate VMs from CentOS (RDO) with SELinux to Ubuntu (OSA) with AppArmor?
11:50:04 NewBruce i am convinced there is a way to do it, reading into the libvirt docs, but nothing has worked so far
11:57:52 kashyap NewBruce: I don't think (read: "I'm pretty sure") you will find official libvirt docs for it :-)
11:58:28 kashyap If you're trying that, be aware that you might be left holding holding a bag of broken VM parts.
11:58:47 kashyap s/"holding holding"/holding/
11:59:25 kashyap NewBruce: But ... if you _did_ succeed (or otherwise) might want to write a public blog post, with your exploits
12:10:06 NewBruce well you can ask mnaser how he did it ;)
12:11:13 NewBruce sorry, having a quick chat with some libvirt people who think im doing some horrible sorcery to get migration from centos to ubuntu in the first place and that is courtesy of mnaser but long story short seems… impossible?
12:13:15 NewBruce i expected to see a seclabel=selinux in the xml, but wasnt there but migrations fail….
12:13:36 NewBruce Live Migration failure: unsupported configuration: Unable to find security driver for model selinux: libvirtError: unsupported configuration: Unable to find security driver for model selinux
12:19:55 kashyap NewBruce: Ah, I see you're on #virt, OFTC. (Haven't read the detail; buried in too many things)
12:20:53 NewBruce yeah, figured someone here might have tried before; but more likely the libvirt peoples would be up on it - seems this is a corner case; though surprising no one has ever moved from RDO to OSA before….
12:21:00 kashyap Your machine types on source and destination won't match -- one of your main blockers...
12:21:32 NewBruce i beleive that is what mnaser has helped patch for us (wasnt around when he did that)
12:22:22 NewBruce but live migrating from RDO -> OSA definitely works for us; ive done it thousands of times now on another site - its just this setup im with now has SELinux on the RDO side which is a pain on the Ubuntu side as there are horrible bugs on Ubuntu with SELinux
12:22:54 NewBruce like not being able to create new users (which we can work around…. but still)
12:23:09 NewBruce running SELinux on Ubuntu is not a preferred long-term solution
12:24:04 kashyap Right, as I just noted on #virt; you do need some way of recompiling QEMU on Ubuntu, based on CentOS QEMU source (for the machine types)
12:24:16 NewBruce which it appears we have
12:24:32 NewBruce … should we move this over to #virt? :D
12:33:35 kashyap Yeah.
12:42:21 mnaser kashyap, NewBruce: pretty much deconstructed the srpm from redhat and added all the patches to the Deb which included all the machine typed etc to make it possible
12:46:17 kashyap mnaser: Wauw; have to admit, that's one really burdensome source you'll have to maintain
12:46:28 NewBruce according to the folks ok #virsh mnaser this makes you certifiable! :D
12:47:28 mnaser kashyap: I did tell the NewBruce and co that this will survive one single live migration and we reinstall the original binaries right after and it will block live migrations after
12:48:00 mnaser So the goal was just to get the one live migration done, reinstall original qemu and then on any full reboot they get the Ubuntu machine type
12:49:16 kashyap mnaser: If I may ask, is the goal to get off of CentOS altogether?
13:14:47 efried_pto sean-k-mooney: Is https://blueprints.launchpad.net/nova/+spec/libvirt-video-device-models code complete since https://review.opendev.org/#/c/647733/ has merged?
13:15:37 efried_pto sean-k-mooney: I see there's some minor cleanup, but that doesn't look critical. And something on the glance side?
13:25:13 openstackgerrit Merged openstack/os-traits master: add libvirt image metadata traits https://review.opendev.org/652996
13:25:16 openstackgerrit Merged openstack/os-traits master: add GOP, NONE and VIRTIO grapics models https://review.opendev.org/665830
13:33:44 openstackgerrit Merged openstack/nova master: Remove redundant group host setup https://review.opendev.org/665954
13:33:53 openstackgerrit Merged openstack/nova master: [FUP] fix backleveling unit test for video models https://review.opendev.org/666919
13:34:03 openstackgerrit Merged openstack/nova master: Mention [cinder]/cross_az_attach in the AZ docs https://review.opendev.org/650456
13:41:01 mriedem sean-k-mooney: so same host revert resize huh, who know neutron had a gate job for ovs hybrid plug...
13:41:12 mriedem we should probably throw that into nova's experimental queue to be run on-demand
13:41:31 mriedem s/should/could/ since that means someone would have to remember to run it
13:44:00 sean-k-mooney ya we should

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