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#openstack-nova - 2018-01-04
15:43:50 mdbooth ildikov: Incidentally, does service_uuid indicate a shared pool of volumes?
15:44:10 mdbooth ildikov: e.g. multiple volumes on the same NFS mount?
15:44:28 ildikov mdbooth: no, that's independent
15:44:40 mdbooth ildikov: Where can I read what it means?
15:44:55 mriedem kashyap: long-term that would be cleaner yes,
15:45:01 mriedem but not something that is going to help me in queens
15:45:37 kashyap Right. /me imagines: If you add the version check, and then the capability comes along later, no one will remember to swap that, until prompted by something
15:46:13 mriedem kashyap: feel free to file a bug if you want :)
15:46:17 kashyap ildikov: Can you point to the latest URL of the multi-attach specification, please?
15:46:27 openstackgerrit Matthew Booth proposed openstack/nova master: Use real block_device_info data in libvirt tests https://review.openstack.org/527916
15:46:27 openstackgerrit Matthew Booth proposed openstack/nova master: Pass DriverBlockDevice to driver.attach_volume https://review.openstack.org/528363
15:46:28 openstackgerrit Matthew Booth proposed openstack/nova master: Pass disk_info dict to libvirt_info https://review.openstack.org/529329
15:46:28 openstackgerrit Matthew Booth proposed openstack/nova master: Fix libvirt volume tests passing invalid disk_info https://review.openstack.org/529328
15:46:29 openstackgerrit Matthew Booth proposed openstack/nova master: Don't generate fake disk_info in swap_volume https://review.openstack.org/530787
15:46:29 openstackgerrit Matthew Booth proposed openstack/nova master: Expose volume host type and path independent of libvirt config https://review.openstack.org/530786
15:46:30 openstackgerrit Matthew Booth proposed openstack/nova master: Remove redundant swap_volume tests https://review.openstack.org/531179
15:46:30 openstackgerrit Matthew Booth proposed openstack/nova master: Local disk serial numbers for the libvirt driver https://review.openstack.org/529380
15:46:36 mriedem kashyap: https://specs.openstack.org/openstack/nova-specs/specs/queens/approved/cinder-volume-multi-attach.html
15:46:39 kashyap mriedem: Will do
15:46:46 kashyap Thanks
15:47:27 openstackgerrit Andreas Karis proposed openstack/nova master: Add debug output for selected page size https://review.openstack.org/530662
15:48:13 coreycb mriedem: this is being tracked in https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1716028
15:48:14 openstack Launchpad bug 1716028 in libvirt (Ubuntu) "qemu 2.10 locks images with no feature flag" [Medium,Triaged]
15:48:57 coreycb mriedem: cpaelzer says that after bionic is done he'll take a look at a potential SRU, although he currently has the SRU to artful(pike) as a low priority.
15:49:28 mriedem coreycb: ok thanks
15:51:09 kashyap It sucks hard that one cannot access the URLs (https://review.openstack.org/#/c/267587/78/nova/virt/libvirt/driver.py) without Gerrit account
15:51:31 kashyap Can't pass in-progress patch URLs to people aren't Gerrit users. Surely there must be a way
15:51:44 kashyap Without bothering people to ask to make an account (much like mailing lists).
15:52:35 mriedem kashyap: i'm not signed in and i can view https://review.openstack.org/#/c/267587/78/nova/virt/libvirt/driver.py
15:52:50 mriedem you just can't comment or vote
15:52:55 kashyap mriedem: Err, sorry. The person was complaining about typing in a comment.
15:54:00 kashyap mriedem: Anyway, the quick point that Peter wanted to add was: " sharing disk image is possible even with current qemu/libvirt if the image is 'raw' and <shareable/> is used"
15:55:36 mriedem we must be using qcow2 images
15:56:35 mriedem another thing i can try
15:57:03 ildikov mdbooth: the service_uuid field was added here: https://review.openstack.org/#/c/519025/
15:57:41 mdbooth ildikov: Just found it. I think it's orthogonal to multi-attach, tbh.
15:57:51 mriedem kashyap: although it's a bit confusing,
15:57:57 mriedem we dump the disk config before trying to attach the device
15:58:00 mriedem http://paste.openstack.org/show/638081/
15:58:00 mriedem and it says type="raw"
15:58:51 mdbooth ildikov: Still a good idea. I could also remove my NFS locking stuff in Nova if we had that, although my NFS locking is finer grained but significantly more complex.
15:59:09 ildikov mdbooth: it was added along with a shared_targets field so we can use a lock in case the target exported by the back end is shared among volumes/attachments
15:59:35 mdbooth ildikov: I get it. It's a good idea, I just don't see the relationship to multi-attach.
15:59:51 kashyap mriedem: (Aside - we both wrote almost same comment 4 mins apart)
15:59:54 ildikov mdbooth: it is supposed to help to solve our detach problems
15:59:59 kashyap mriedem: Looking at your paste
16:00:00 mdbooth We hit this with or without multi-attach.
16:00:17 ildikov mdbooth: as if the target is shared and gets removed with the first attachment then the remaining attachments are screwed
16:00:30 mdbooth ildikov: Right, but you can can do that without multi-attach.
16:00:52 ildikov mdbooth: and the Nova patches using it are dependencies to multi-attach as it might be a problem otherwise as well
16:00:53 mdbooth Multi-attach doesn't even make the problem particularly worse.
16:01:35 ildikov mdbooth: well, I got it in referring to multi-attach, but I guess the path doesn't matter once you got where you wanted... :)
16:01:54 efried jaypipes mriedem cdent alex_xu Draft: http://paste.openstack.org/show/638080/ -- anything missing/incorrect/silly?
16:02:26 cdent efried: will look in a mo, thanks for doing that
16:02:36 mdbooth ildikov: Hehe, I hear you :)
16:04:39 mriedem mdbooth: is it just me or is libvirt.images_type, use_cow_images and force_raw_images set of options totally confusing?
16:04:40 stephenfin alex_xu: Done (https://review.openstack.org/#/c/530284/(
16:18:28 efried mriedem Log processing & coloring is handled in the openstack-infra/os-loganalyze project (but I think you knew that). Is there something in particular you're having trouble finding in there?
16:19:23 openstackgerrit Stephen Finucane proposed openstack/nova master: conf: Deprecate 'network_manager' https://review.openstack.org/530923
16:19:33 mriedem efried: what in infra actually calls os-loganalyze to format the logs
16:20:16 openstackgerrit Stephen Finucane proposed openstack/nova master: conf: Use new-style choice values https://review.openstack.org/530924
16:20:40 efried mriedem Ah - it's an apache plugin thingy. The files aren't actually modified - they get twiddled on the fly when you do your http request.
16:21:18 efried mriedem So you just need to muck with the filters to make sure they're being run on the files you're interested in.
16:22:21 efried mriedem If you have access to a log server, you can play by fiddling with the os-loganalyze source in place, restarting the apache server, and then reloading your browser.
16:27:51 mriedem i don't
16:44:52 cdent efried: information seems accurate at the detail level, but feels like it needs some kind of executive summary or something, a kind of "here's what we're trying to accomplish" which is then followed by the "and this is how it is being done" (which is what you've already got)
16:45:45 efried cdent Okay. I felt like it was already getting kinda long, but... tough :)
16:46:21 cdent I think length is useful in this case because there's been not enough in the way of spec, so this kind of stands in for that
16:50:17 clarkb mriedem: the test framework for it runs without apache
16:52:23 openstackgerrit Eric Berglund proposed openstack/nova master: WIP: PowerVM Driver: vSCSI https://review.openstack.org/526094
16:53:53 hrw https://marcin.juszkiewicz.com.pl/2018/01/04/today-i-was-fighting-with-nova-no-idea-who-won/
16:53:57 hrw kashyap: ^^
16:54:15 kashyap hrw: On a call, will read :-)
16:54:36 hrw kashyap: thx ;)
16:54:43 kashyap Damn, I already clicked
16:58:49 hrw kashyap: :D
16:58:50 kashyap hrw: It looks fine; there's an extra tab in there
16:59:00 kashyap "It" == the review
16:59:31 rybridges Hey guys, can anyone confirm for sure whether or not ephemeral GB is part of a VMs snapshot?
17:00:07 hrw kashyap: can you mark it in comment? I am unable to find it locally
17:00:19 kashyap hrw: Done.
17:00:22 kashyap It's extra tab
17:00:30 kashyap In the rel note file
17:00:55 hrw rught
17:01:04 hrw 4 spaces to be exact ;d
17:01:09 hrw that's why I did not ofund
17:01:37 openstackgerrit Marcin Juszkiewicz proposed openstack/nova master: libvirt: use 'host-passthrough' as default on AArch64 https://review.openstack.org/530965
17:01:50 hrw done
17:03:43 efried cdent (jaypipes) Howzat: http://paste.openstack.org/raw/638137/
17:21:12 mnaser is stable/pike ci broken?
17:21:16 mriedem yes
17:21:40 mriedem https://review.openstack.org/#/c/531058/
17:21:55 lyarwood also https://review.openstack.org/#/c/531046/
17:23:02 mnaser ok, i guess i'll apply the patch locally till it lands in stable/pike (https://review.openstack.org/#/c/529384/)
17:24:26 edleafe mriedem: so for the migration bug: would the fix be to just log that there were no orig_alloc found, and not raise the exception?
17:24:51 mriedem edleafe: well, there are really 2 fixes,
17:24:58 edleafe Or should I also check if the migration is the orig_alloc (as in retries)
17:25:05 mriedem 1. If using the CachingScheduler, there won't be allocations and we need to just log something and ignore it
17:25:20 mnaser also if any stable cores for nova are around, this is pretty useful - https://review.openstack.org/#/c/529385/
17:25:49 mriedem 2. If we're rescheduling (we should know this via filter_properties 'retry' entry), then we need to modify how we swap allocations to only change the allocation for the instance record, and leave the migration allocation on the source node untouched

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