| openstackgerrit | Tetsuro Nakamura proposed openstack/nova-specs master: Report KVM hypervisor_type in hypervisor API https://review.openstack.org/554075 | 00:01 |
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| openstackgerrit | Tetsuro Nakamura proposed openstack/nova master: disable cpu pinning with libvirt/qemu driver https://review.openstack.org/531049 | 00:02 |
| openstackgerrit | Tetsuro Nakamura proposed openstack/nova master: enable cpu pinning with libvirt/qemu driver https://review.openstack.org/554076 | 00:02 |
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| openstackgerrit | Michael Still proposed openstack/nova master: Move configurable mkfs to privsep. https://review.openstack.org/551921 | 01:08 |
| openstackgerrit | Michael Still proposed openstack/nova master: Move xenapi xenstore_read's to privsep. https://review.openstack.org/552241 | 01:08 |
| openstackgerrit | Michael Still proposed openstack/nova master: Move xenapi disk resizing to privsep. https://review.openstack.org/552242 | 01:08 |
| openstackgerrit | Michael Still proposed openstack/nova master: Move xenapi partition copies to privsep. https://review.openstack.org/553605 | 01:08 |
| openstackgerrit | Michael Still proposed openstack/nova master: Sync xenapi and libvirt on what flags to pass e2fsck. https://review.openstack.org/554078 | 01:08 |
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| openstackgerrit | Zhenyu Zheng proposed openstack/nova master: nova-manage db archive_deleted_rows is not multi-cell aware https://review.openstack.org/507486 | 01:24 |
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| jichen | melwitt: hi, could you please help to review https://review.openstack.org/#/q/topic:bp/add-zvm-driver-rocky+(status:open+OR+status:merged) as it's listed https://etherpad.openstack.org/p/rocky-nova-priorities-tracking 'Non-priority approved blueprints' but no review since PTG end and I think better to request review/approval before cores get busy .... | 02:54 |
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| openstackgerrit | YaoZheng proposed openstack/nova master: remove _cleanup_running_deleted_instances repeat detach volume https://review.openstack.org/554090 | 03:01 |
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| openstackgerrit | Hironori Shiina proposed openstack/nova master: ironic: Proxy a few attributes of block device mapping https://review.openstack.org/554093 | 03:08 |
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| openstackgerrit | Tetsuro Nakamura proposed openstack/nova master: [libvirt] Add _get_numa_memnode() https://review.openstack.org/529906 | 03:47 |
| openstackgerrit | Tetsuro Nakamura proposed openstack/nova master: [libvirt] Add _get_XXXpin_cpuset() https://review.openstack.org/527631 | 03:47 |
| openstackgerrit | Tetsuro Nakamura proposed openstack/nova master: Add NumaTopology support for libvirt/qemu driver https://review.openstack.org/530451 | 03:47 |
| openstackgerrit | Tetsuro Nakamura proposed openstack/nova master: trivial: omit condition evaluations https://review.openstack.org/545248 | 03:47 |
| openstackgerrit | Tetsuro Nakamura proposed openstack/nova master: disable cpu pinning with libvirt/qemu driver https://review.openstack.org/531049 | 03:47 |
| openstackgerrit | Tetsuro Nakamura proposed openstack/nova master: enable cpu pinning with libvirt/qemu driver https://review.openstack.org/554076 | 03:47 |
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| openstackgerrit | Tetsuro Nakamura proposed openstack/nova master: Fix comments in get_all_with_shared() https://review.openstack.org/533195 | 04:17 |
| openstackgerrit | Tetsuro Nakamura proposed openstack/nova master: Fix hypervisor_type in /os-hypervisors/details https://review.openstack.org/531328 | 04:21 |
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| openstackgerrit | Merged openstack/nova master: Add --by-service to discover_hosts https://review.openstack.org/552691 | 05:07 |
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| openstackgerrit | wangqi proposed openstack/nova master: use http code constant instead of int https://review.openstack.org/554121 | 05:20 |
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| openstackgerrit | Hironori Shiina proposed openstack/nova master: ironic: Proxy a few attributes of block device mapping https://review.openstack.org/554093 | 06:03 |
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| openstackgerrit | OpenStack Proposal Bot proposed openstack/nova master: Imported Translations from Zanata https://review.openstack.org/548772 | 06:26 |
| openstackgerrit | Yikun Jiang (Kero) proposed openstack/nova-specs master: Amend the "add extra-specs to flavor" for create and update API https://review.openstack.org/554134 | 06:29 |
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| openstackgerrit | Yikun Jiang (Kero) proposed openstack/nova-specs master: Amend the "add extra-specs to flavor" for create and update API https://review.openstack.org/554134 | 06:30 |
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| openstackgerrit | wangqi proposed openstack/nova master: use http code constant instead of int https://review.openstack.org/554121 | 06:37 |
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| openstackgerrit | Andrey Volkov proposed openstack/osc-placement master: Get resource provider by uuid or name https://review.openstack.org/527791 | 06:45 |
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| openstackgerrit | Andrey Volkov proposed openstack/osc-placement master: Get resource provider by uuid or name https://review.openstack.org/527791 | 07:41 |
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| openstackgerrit | Naichuan Sun proposed openstack/nova master: xenapi: Remove dependency to the old aggregate-based-pools https://review.openstack.org/554154 | 07:55 |
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| openstackgerrit | wangqi proposed openstack/nova master: use http code constant instead of int https://review.openstack.org/554121 | 07:59 |
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| openstackgerrit | Shilpa Devharakar proposed openstack/nova master: Update docs, API samples for noVNC 1.0.0 https://review.openstack.org/550173 | 08:08 |
| openstackgerrit | Yikun Jiang (Kero) proposed openstack/nova master: [WIP] Add microversion to support extra_specs in flavor API. https://review.openstack.org/554159 | 08:11 |
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| openstackgerrit | jichenjc proposed openstack/nova master: Move test_allocation_candidates.py https://review.openstack.org/553149 | 08:22 |
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| openstackgerrit | sahid proposed openstack/nova master: libvirt: slow live-migration to ensure network is ready https://review.openstack.org/497457 | 08:23 |
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| openstackgerrit | Naichuan Sun proposed openstack/nova master: xenapi: Remove dependency to the old aggregate-based-pools https://review.openstack.org/554154 | 08:36 |
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| openstackgerrit | Zhenyu Zheng proposed openstack/nova master: nova-manage db archive_deleted_rows is not multi-cell aware https://review.openstack.org/507486 | 08:41 |
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| openstackgerrit | YaoZheng proposed openstack/nova master: remove _cleanup_running_deleted_instances repeat detach volume https://review.openstack.org/554090 | 08:44 |
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| openstackgerrit | licanwei proposed openstack/nova master: Make nova-manage capable of syncing all cell databases https://review.openstack.org/519275 | 08:48 |
| openstackgerrit | Naichuan Sun proposed openstack/nova master: xenapi: Use XAPI pool instead of aggregate pool for shared SR migration https://review.openstack.org/554154 | 08:48 |
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| openstackgerrit | Naichuan Sun proposed openstack/nova master: xenapi: Support live migration in pooled multi-nodes environment https://review.openstack.org/489451 | 08:50 |
| openstackgerrit | jichenjc proposed openstack/nova master: Move placement test cases from db to placement https://review.openstack.org/553149 | 08:52 |
| openstackgerrit | Naichuan Sun proposed openstack/nova master: xenapi: Use XAPI pool instead of aggregate pool for shared SR migration https://review.openstack.org/554154 | 08:53 |
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| openstackgerrit | Naichuan Sun proposed openstack/nova master: xenapi: Use XAPI pool instead of aggregate pool for shared SR migration https://review.openstack.org/554154 | 08:54 |
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| openstackgerrit | Naichuan Sun proposed openstack/nova master: xenapi: Support live migration in pooled multi-nodes environment https://review.openstack.org/489451 | 09:00 |
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| openstackgerrit | Naichuan Sun proposed openstack/nova master: xenapi: Use XAPI pool instead of aggregate pool for shared SR migration https://review.openstack.org/554154 | 09:13 |
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| openstackgerrit | zhufl proposed openstack/nova master: Fix typos in release notes https://review.openstack.org/554175 | 09:25 |
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| gibi | good morning | 09:30 |
| openstackgerrit | Yikun Jiang (Kero) proposed openstack/nova-specs master: Amend the "add extra-specs to flavor" for create and update API https://review.openstack.org/554134 | 09:31 |
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| openstackgerrit | Bence Romsics proposed openstack/osc-placement master: Do not depend on jenkins user in devstack gate https://review.openstack.org/552476 | 09:49 |
| gibi | bauzas: regarding the https://github.com/openstack/oslo.versionedobjects/commit/0e3526710f67b3b4ebab60864ea060fa9caf9537 and the hypens in UUIDs. My intention in that ovo patch was to fix the usage error of the warning filter in ovo | 09:50 |
| cdent | mornin' | 09:51 |
| openstackgerrit | Tetiana Lashchova proposed openstack/nova-specs master: Allow modification of user-data via the server update https://review.openstack.org/547964 | 09:56 |
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| diranerpi | Hi all There is a way to use instance metadata to schedule instance deployment on a specific host? | 10:02 |
| openstackgerrit | Lee Yarwood proposed openstack/nova stable/queens: docs: Disable smartquotes https://review.openstack.org/554188 | 10:05 |
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| openstackgerrit | Lee Yarwood proposed openstack/nova stable/pike: docs: Disable smartquotes https://review.openstack.org/554189 | 10:05 |
| diranerpi | or on a specific host aggregate ? | 10:05 |
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| johnthetubaguy | diranerpi: there are almost too many options right now, have a look at most of the filters with the word "aggregate" in them: https://docs.openstack.org/nova/latest/user/filter-scheduler.html | 10:24 |
| bhagyashris | johnthetubguy: Hi, | 10:25 |
| bhagyashris | johnthetubguy: I just want to discuss deeply regarding "Skip instance backup image creation when rotation 0" as we discussed in Dublin PTG #link: https://etherpad.openstack.org/p/nova-ptg-rocky so as per the suggestion I am following the the idea mentioned in etherpad 1. add a microversion to disallow 0 using the schema validation while creating the backup image | 10:29 |
| bhagyashris | johnthetubguy: 2. add a new API for "purge all backups" to be used instead of passing 0 so for this I have introduce new cleanup-backup api to delete the backup images of specified instance in command | 10:31 |
| bhagyashris | johnthetubguy: so i am on the right patch about this idea | 10:31 |
| bhagyashris | johnthetubguy: s/patch/path | 10:32 |
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| bhagyashris | johnthetubaguy: Hi, Sorry for spelling mistake in name ^ | 10:37 |
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| diranerpi | johnthetubaguy: hi, i've read those filter but no one responds to my use case (i want to use instance metadata to choose which host aggregate will be used) | 10:37 |
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| diranerpi | So for example, if in my instance data i create a metadata like "service = database", i want this instance to be deployed on a specific aggregate host | 10:38 |
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| diranerpi | johnthetubaguy: So for example, if in my instance data i create a metadata like "service = database", i want this instance to be deployed on a specific aggregate host | 10:39 |
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| openstackgerrit | Silvan Kaiser proposed openstack/nova master: Exec systemd-run with privileges in Quobyte driver https://review.openstack.org/554195 | 10:50 |
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| openstackgerrit | Chris Dent proposed openstack/nova master: WIP: Ensure that os-traits sync is attempted only at start of process https://review.openstack.org/553857 | 10:54 |
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| johnthetubaguy | bhagyashris: hi | 11:09 |
| johnthetubaguy | bhagyashris: that sounds spot on | 11:09 |
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| bhagyashris | johnthetubaguy: ok thank you :) actually cleanup-backup api will purge all the backup images of instance so is that be ok? or should i give the provision to cleanup the backup images for example cleanup last two backups etc? | 11:17 |
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| bhagyashris | johnthetubaguy: and on current master at the time of createbackup the delete image backup is implementated so should i remove that implementation from create backup so should i kept it as it is? | 11:24 |
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| gibi | melwitt: regarding the nova onboarding session in Vancouver. I can only give a tentative yes as my company haven't approved my travel yet. | 11:32 |
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| kashyap | Is it just me, fetching from: https://git.openstack.org/openstack/nova.git fails? | 11:39 |
| kashyap | It's just me | 11:42 |
| cdent | works for me | 11:42 |
| kashyap | Fir me, it's just hung here: | 11:44 |
| kashyap | Running: `GIT_CURL_VERBOSE=1 GIT_TRACE=1 git pull` | 11:44 |
| kashyap | http://paste.openstack.org/show/704380/ | 11:44 |
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| johnthetubaguy | bhagyashris: the old API has to keep working like it does today | 11:54 |
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| johnthetubaguy | kashyap: you tried doing http rather than https? | 11:55 |
| kashyap | johnthetubaguy: I tried all three, git, https, http. | 11:55 |
| kashyap | None works for me, bizarrely | 11:55 |
| johnthetubaguy | bummer | 11:55 |
| bhagyashris | johnthetubaguy: ok . i just need to add the functionality of roatation parameter value 0 in cleanup backup api right? | 11:56 |
| johnthetubaguy | bhagyashris: yes, that sounds correct. Will be easier to review the spec with all the details, to make sure I haven't missed a bit :) | 11:57 |
| bhagyashris | johnthetubaguy: ok thank you for your inputs will upload spec ASAP :) | 11:59 |
| johnthetubaguy | bhagyashris: no problem, sounds good | 11:59 |
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| openstackgerrit | Theodoros Tsioutsias proposed openstack/nova-specs master: Add PENDING vm state https://review.openstack.org/554212 | 12:24 |
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| openstackgerrit | Chris Dent proposed openstack/nova-specs master: Provide error codes for placement API https://review.openstack.org/418393 | 12:28 |
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| openstackgerrit | Theodoros Tsioutsias proposed openstack/nova-specs master: Enable rebuild for instances in cell0 https://review.openstack.org/554218 | 12:55 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova master: Add VIFMigrateData object for live migration https://review.openstack.org/515423 | 13:29 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: WIP: libvirt: use dest host vif migrate details for live migration https://review.openstack.org/551370 | 13:29 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Port binding based on events during live migration https://review.openstack.org/434870 | 13:29 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Add "delete_port_binding" network API method https://review.openstack.org/552170 | 13:29 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: compute: use port binding extended API during live migration https://review.openstack.org/551371 | 13:29 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova master: conductor: use port binding extended API in during live migrate https://review.openstack.org/522537 | 13:29 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: WIP: Turn on new port binding extended live migrate flow https://review.openstack.org/552173 | 13:29 |
| openstackgerrit | Zhenyu Zheng proposed openstack/nova master: nova-manage db archive_deleted_rows is not multi-cell aware https://review.openstack.org/507486 | 13:30 |
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| kaisers1 | efried: Hi! Regarding https://review.openstack.org/#/c/554195/ : I looked into using privsep but as the spec says true root user context will continue to use rootwrap i went with that. If privsep does offer a root execution mechanism i can go that way. Do you have a hint on docs/examples of that for me? | 13:44 |
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| efried | kaisers1: mikal is the expert on that. I believe he's in Australia, so time zones may be a bit of a challenge. I'm sure I can at least dig up the spec for the privsep work. Stand by... | 13:45 |
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| efried | kaisers1: Meanwhile, if you want to see some examples for how mikal has transitioned existing code over to privsep: https://review.openstack.org/#/q/topic:bp/hurrah-for-privsep+(status:open+OR+status:merged) | 13:45 |
| dansmith | kaisers1: you should be using privsep not rootwrap for new things | 13:47 |
| dansmith | kaisers1: the whole point of privsep is to replace rootwrap, and doing so does indeed get you root escalation for your code | 13:47 |
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| efried | dansmith: Is there a spec (I can't find one) or documentation for how to use privsep? | 13:47 |
| dansmith | efried: there's lots of code now | 13:48 |
| kaisers1 | I did read the spec | 13:48 |
| kaisers1 | dansmith: thanks for the inputs! | 13:48 |
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| efried | kaisers1: For my edification, where did you find that spec? | 13:48 |
| kaisers1 | efried: https://specs.openstack.org/openstack/oslo-specs/specs/liberty/privsep.html | 13:49 |
| dansmith | privsep was born of lots of conversation and design, I'm sure there are things to read, but I expect a lot of the formal documentation focuses on capability contexts, which we've short-circuited to a single root one, | 13:49 |
| efried | ah, in oslo. | 13:49 |
| dansmith | so it may be more reading than you need | 13:49 |
| efried | So yeah, kaisers1 you may do best following the code examples I linked above. | 13:49 |
| kaisers1 | efried: will do, thanks! | 13:50 |
| dansmith | definitely | 13:50 |
| efried | enjoy | 13:50 |
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| jaypipes | ugh, the warnings barfed out in py36 test runs is getting ridiculous. | 13:54 |
| edleafe | Scheduler subteam meeting in 5 minutes in #openstack-meeting-alt | 13:55 |
| cdent | jaypipes: fun, isn't it? | 13:55 |
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| tssurya | dansmith: I am really sorry about this accidental rebase : https://review.openstack.org/#/c/553831/; could you please rebase it to the right topic before someone +W's it ? | 13:57 |
| jaypipes | cdent: makes it very annoying to run tests. | 13:57 |
| cdent | jaypipes: I keep meaning to find some to fix and then forget for whatever reason | 13:58 |
| dansmith | tssurya: it doesn't really matter | 13:58 |
| tssurya | dansmith: ok, yea still sorry | 13:59 |
| dansmith | tssurya: it's not a problem, gerrit-review does that | 13:59 |
| dansmith | tssurya: in the future -R will prevent you from rebasing the thing underneath you if you intentionally don't want it to move | 13:59 |
| tssurya | dansmith: yep will keep that in mind next time | 14:00 |
| tssurya | thank you | 14:00 |
| dansmith | np | 14:00 |
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| Maddy | Hello, I was hitting this bug https://bugs.launchpad.net/nova/+bug/1717547 and I see that the workaround for that is not using the image parameters name as 'version', 'context' and 'method'. | 14:05 |
| openstack | Launchpad bug 1717547 in OpenStack Compute (nova) "Creating snapshot fails when image metadata has version field" [Low,Confirmed] | 14:05 |
| Maddy | This is not good because the user needs to be aware of that. One solution is make Glance to deny use of these parameters name on it's images. Other solution is to rename the variables in Nova 'Call' function to begin with '_' (underscore), but for that we also need to enforce Glance to now allow parameters beginning with '_' (underscore). | 14:05 |
| Maddy | What's your thoughts about that? Any better solution? In case not, what do you think about implementing one the above solutions? | 14:05 |
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| openstackgerrit | Jay Pipes proposed openstack/nova master: tests for alloc candidates with nested and traits https://review.openstack.org/531899 | 14:14 |
| openstackgerrit | Jay Pipes proposed openstack/nova master: add test for scenario with sum of child resources https://review.openstack.org/534339 | 14:14 |
| openstackgerrit | Jay Pipes proposed openstack/nova master: _get_trees_matching_all_resources() sum children https://review.openstack.org/534866 | 14:14 |
| openstackgerrit | Jay Pipes proposed openstack/nova master: add _get_usages_from_trees() function https://review.openstack.org/534967 | 14:14 |
| openstackgerrit | Jay Pipes proposed openstack/nova master: validate provider summary structure https://review.openstack.org/536516 | 14:14 |
| openstackgerrit | Jay Pipes proposed openstack/nova master: WIP - populate alloc cands for trees https://review.openstack.org/534968 | 14:14 |
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| openstackgerrit | Jay Pipes proposed openstack/nova master: tests for alloc candidates with nested and traits https://review.openstack.org/531899 | 14:20 |
| openstackgerrit | Jay Pipes proposed openstack/nova master: add test for scenario with sum of child resources https://review.openstack.org/534339 | 14:20 |
| openstackgerrit | Jay Pipes proposed openstack/nova master: _get_trees_matching_all_resources() sum children https://review.openstack.org/534866 | 14:20 |
| openstackgerrit | Jay Pipes proposed openstack/nova master: add _get_usages_from_trees() function https://review.openstack.org/534967 | 14:20 |
| openstackgerrit | Jay Pipes proposed openstack/nova master: validate provider summary structure https://review.openstack.org/536516 | 14:20 |
| openstackgerrit | Jay Pipes proposed openstack/nova master: WIP - populate alloc cands for trees https://review.openstack.org/534968 | 14:20 |
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| openstackgerrit | Merged openstack/nova-specs master: Add host info to instance action events https://review.openstack.org/543277 | 14:23 |
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| jaypipes | efried: ^^ I'm getting that nested providers in allocation candidates series back inline... | 14:27 |
| efried | jaypipes: Cool dude. | 14:27 |
| efried | Did you see my potentially earth-shattering dissenting opinion on the "split one resource across multiple providers" thing? | 14:28 |
| jaypipes | efried: no. link? | 14:28 |
| efried | jaypipes: https://review.openstack.org/#/c/534339/ -- my last comment, on PS5 before rebases | 14:29 |
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| mriedem | dansmith: replied in https://review.openstack.org/#/c/543277/ | 14:38 |
| mriedem | still don't see the need for hostId in the action events API, but people at the PTG wanted it | 14:38 |
| dansmith | mriedem: I'm commenting about the rst syntax, using `` instead of " | 14:38 |
| mriedem | oh, heh | 14:40 |
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| mriedem | i can push a doc cleanup patch on that | 14:40 |
| kashyap | mriedem: melwitt: Heya, I've read the full chat between you both, dansmith, et al (including the quip: "besides the fix, you can also configure nova for other goodies!"). | 14:41 |
| kashyap | Not to discuss this to death, but 3 quick points: | 14:41 |
| dansmith | mriedem: that's all I was saying :) | 14:42 |
| * kashyap copy / pastes the 3 points from editor: | 14:42 | |
| kashyap | (1) I want to do the Right Thing & not rush anything in. | 14:42 |
| kashyap | (2) The two Nova config options thing just causes untold pain for all vendors with all their unique deployment tools; and just wastes precious time all around for little gain. | 14:42 |
| kashyap | (3) On your point: "well, what I mean is if you use it and it breaks something in queens/pike/ocata then we're probably not going to fix things to accommodate the various flags they enable" — That's a good point. Yes, we have to loudly and clearly document that "NB: There's a huge combination of CPU flags possible, just by virtue of them being available in a given CPU. It's not reasonable to | 14:42 |
| kashyap | test all combinations; so if an Operator wants to try certain flags, it's their responsibility to test if that works in their environment". | 14:42 |
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| * kashyap crawls back to his cave to address the technical bits | 14:43 | |
| openstackgerrit | Chris Dent proposed openstack/nova master: Move placement exceptions into the placement package https://review.openstack.org/549862 | 14:44 |
| kashyap | melwitt: mriedem: As a last point, as dansmith also said in different words on Friday here — | 14:44 |
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| kashyap | It is not sensible to create an intentionally incompatible syntax in the Nova config file when the actual Nova code to process the config options is largely identical in both cases. | 14:44 |
| openstackgerrit | Chris Dent proposed openstack/nova master: Optional separate database for placement API https://review.openstack.org/362766 | 14:45 |
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| openstackgerrit | Chris Dent proposed openstack/nova master: Isolate placement database config https://review.openstack.org/541435 | 14:47 |
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| openstackgerrit | Chris Dent proposed openstack/nova master: WIP: Ensure that os-traits sync is attempted only at start of process https://review.openstack.org/553857 | 14:47 |
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| openstackgerrit | Lenny Verkhovsky proposed openstack/nova master: Adding NVMEoF for libvirt driver https://review.openstack.org/482640 | 14:51 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova-specs master: Address review comments from afdc828db3c9d0205b6ded268db24f5cdf857fa6 https://review.openstack.org/554251 | 15:01 |
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| openstackgerrit | Silvan Kaiser proposed openstack/nova master: Exec systemd-run with privileges in Quobyte driver https://review.openstack.org/554195 | 15:04 |
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| kaisers1 | efried: fyi https://review.openstack.org/#/c/554195/2 | 15:06 |
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| openstackgerrit | Eric Fried proposed openstack/nova master: Report client: Remove version discovery comment https://review.openstack.org/554253 | 15:06 |
| efried | jaypipes, mriedem, cdent ^ | 15:06 |
| efried | kaisers1: ack | 15:06 |
| efried | edleafe: also --^ | 15:06 |
| cfriesen | is github.com enforcing ssh versions now? I just got a "Peer reports incompatible or unsupported protocol version." | 15:06 |
| efried | Could that be what kashyap was running into earlier? | 15:07 |
| kashyap | efried: Probably; it's gone now. I'm able to fetch 'https' from git.o.o. | 15:08 |
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| kashyap | cfriesen: I also had troubles this morning w/ GitHub as my 'origin' for Nova | 15:08 |
| cfriesen | looks like they're "weak crypto" versions of https | 15:08 |
| cfriesen | bah, they're *disabling* | 15:09 |
| kashyap | Yeah, apparently | 15:09 |
| efried | Cause it's crucial that the content of a public repo be strongly encrypted. | 15:09 |
| efried | Is that, what, so we don't get MITMs injecting viruses into the codebase for us? | 15:10 |
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| efried | tox -e py27 -- trojan_horse ? | 15:11 |
| jaypipes | edleafe, cdent: do we have a bug in placement that diga might be able to pick up? he's looking for some work in placement/scheduler. | 15:11 |
| cfriesen | is it possible to use SSH URLs with github? | 15:12 |
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| cfriesen | I don't see any on the nova page | 15:12 |
| jroll | cfriesen: yep, git@github.com:openstack/nova | 15:12 |
| jroll | need to add your public key in settings | 15:13 |
| edleafe | jaypipes: diga: there's always https://bugs.launchpad.net/nova/+bugs?field.tag=placement as a starting point | 15:13 |
| cfriesen | jroll: thanks | 15:13 |
| jroll | np | 15:13 |
| diga | edleafe: Sure, will go through it | 15:13 |
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| diga | jaypipes: Thank you for your help | 15:14 |
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| jaypipes | diga: if I come across something for you, I will let you know. | 15:16 |
| diga | jaypipes: Sure | 15:17 |
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| diga | jaypipes: I also know NFV technologies like hugepages, numa, dpdk very well. If you have something on that, let me know | 15:21 |
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| jaypipes | diga: cool. can you review this spec please? https://review.openstack.org/#/c/552924/ | 15:23 |
| diga | jaypipes: sure | 15:24 |
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| Spaz-Home | Morning folks | 15:28 |
| openstackgerrit | Chris Dent proposed openstack/nova master: Move placement exceptions into the placement package https://review.openstack.org/549862 | 15:29 |
| openstackgerrit | Chris Dent proposed openstack/nova master: Optional separate database for placement API https://review.openstack.org/362766 | 15:29 |
| openstackgerrit | Chris Dent proposed openstack/nova master: Isolate placement database config https://review.openstack.org/541435 | 15:29 |
| openstackgerrit | Chris Dent proposed openstack/nova master: WIP: Ensure that os-traits sync is attempted only at start of process https://review.openstack.org/553857 | 15:29 |
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| Spaz-Home | Actually taking a relax weekend.. no coding.. just boiling 55 Habaneros, 2 Ghost Peppers, and trying to make a hot sauce without killing myself. Enjoy your day Cloud Creators :p | 15:32 |
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| cdent | jaypipes: what's the status of your "standardized provider descriptor file" spec/idea? Where on the scale or need<->experimental fishing is that? | 15:38 |
| jaypipes | cdent: it's dead. | 15:38 |
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| jaypipes | cdent: I'll abandon it. | 15:38 |
| cdent | dead fish | 15:38 |
| jaypipes | cdent: smelly dead fish. | 15:38 |
| * cdent kinda liked it | 15:38 | |
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| jaypipes | cdent: I did too :) but I understand why dansmith doesn't. | 15:39 |
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| mriedem | sahid: there are a couple of issues in the tests for https://review.openstack.org/#/c/497457/2 | 15:42 |
| mriedem | https://review.openstack.org/#/c/497457/ | 15:42 |
| mriedem | sahid: specifically self.assertEqual(0, guest.migrate_configure_max_speed.called) | 15:42 |
| mriedem | .called is a boolean | 15:42 |
| mriedem | it's probably better to use guest.migrate_configure_max_speed.assert_not_called() | 15:43 |
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| mriedem | if you're about done for the day i could clean those up and then just approve | 15:44 |
| sahid | oh i was sure of that "called" returns a number | 15:44 |
| sahid | no no, i will | 15:44 |
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| mriedem | call_count returns a number | 15:44 |
| sahid | but thanks for asking :) | 15:45 |
| sahid | ack | 15:45 |
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| mriedem | thanks for finding that issue in the multinode job config | 15:45 |
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| sahid | mriedem: yeah, it's that g-api service which looked very strange | 15:46 |
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| openstackgerrit | Jay Pipes proposed openstack/nova master: validate provider summary structure https://review.openstack.org/536516 | 15:47 |
| openstackgerrit | Jay Pipes proposed openstack/nova master: WIP - populate alloc cands for trees https://review.openstack.org/534968 | 15:47 |
| kashyap | sahid: One more nit there: s/TAPs devices/TAP devices/ :-) | 15:47 |
| kashyap | (In driver.py) | 15:47 |
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| cfriesen | has anyone run into problems with setuptools recently? I got a report that 39.0.1 didn't work with our version of pike, wondering if it's a general problem. | 15:48 |
| sahid | kashyap: :) sure i will address that too | 15:49 |
| kashyap | Thx | 15:49 |
| dansmith | cfriesen: I had an issue downstream last week where the parse_version was returning a tuple instead of a string | 15:50 |
| dansmith | cfriesen: migi was looking at it, in case you or he know anything else | 15:50 |
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| cfriesen | dansmith: we ended up pinning it to 38.5.1 for now, which seems to work okay | 15:53 |
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| mriedem | jaypipes: on that vmware resource pools spec, https://review.openstack.org/#/c/549067/6/specs/rocky/approved/vmware-resource-pool-placement.rst@210 | 16:00 |
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| mriedem | jaypipes: finally just realized that this is proposing that the admin changes things *in vcenter*, not placement directly, and that's all proxied through the virt driver | 16:01 |
| mriedem | which kind of goes against something we've always said we woudn't do, which is support out of band changes on the hypervisor | 16:01 |
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| cdent | mriedem: I think those sorts of changes are pretty much why upt exists? | 16:02 |
| cdent | the hardware underlaying the hypervisor changes in some fashion | 16:02 |
| jaypipes | mriedem: vcenter virt driver is virtually identical (pun intended) to how ironic virt driver wants to do things. i.e. the virt driver (not the compute service worker ala the resource tracker) creates the compute node resource provider records. | 16:02 |
| cdent | upt notices | 16:02 |
| cdent | efried: powervm is much the same, yeah? ^ | 16:03 |
| mriedem | jaypipes: this isn't creating the compute node resource provider record, | 16:03 |
| mriedem | it's seeing, oh the admin created some resource pools in this cluster in vcenter directly, and now the virt driver needs to mirror that into placement, | 16:03 |
| mriedem | and what happens when the admin decides to delete those pools in vcenter? nova would also need to mirror that | 16:04 |
| dansmith | cdent: powervm only has one node | 16:04 |
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| mriedem | powervm wants to manage shared storage pool aggregates from what i remember | 16:05 |
| dansmith | jaypipes: I read that spec as not exposing more nodes, but exposing a cluster as a very NUMA single node | 16:05 |
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| cdent | dansmith: not talking about the node here, just what the node is aware of: efried has mentioned that the powervm driver wants to ... yeah what mriedem said | 16:05 |
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| dansmith | mriedem: right, but not multiple nodes from one service as it stands in tree right now | 16:05 |
| mriedem | these would be nested RPs | 16:05 |
| dansmith | yeah, I think jaypipes is saying multiple nodes a-la ironic | 16:06 |
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| dansmith | and I don't think that's on the table for either | 16:06 |
| mriedem | compute node RP (created by nova) -> nested tenant-specific resource pool providers, created by the virt driver, proxied from vcenter | 16:06 |
| mriedem | the 1:M compute node thing isn't in this | 16:06 |
| dansmith | yep | 16:06 |
| dansmith | right | 16:06 |
| cfriesen | mriedem: is there anything in particular blocking https://review.openstack.org/#/c/465787/ ? I notice it hasn't really gotten any reviews other than me. | 16:06 |
| dansmith | I think jaypipes was asserting that it was | 16:06 |
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| jaypipes | dansmith: sorry, on a video call for 45 mintues | 16:07 |
| mriedem | i guess since we don't model numa as a nested RP for the libvirt driver yet, i'm not sure how much proxy we'll be doing to compare to the vcenter thing | 16:07 |
| dansmith | the difference here I think, | 16:07 |
| dansmith | is that libvirt will report the static nature of the system as nested NUMA RPs, | 16:08 |
| openstackgerrit | Lee Yarwood proposed openstack/nova master: libvirt: Block swapping to an encrypted volume when using QEMU to decrypt https://review.openstack.org/544238 | 16:08 |
| dansmith | where vmware would be representing cluster config, which is mutable | 16:08 |
| dansmith | and I agree that sucks, and I don't know what would happen if vmware swizzled things after instances are booted | 16:08 |
| dansmith | but.. | 16:08 |
| dansmith | what we have today is also wrong (exposing a cluster as a single uniform set of resources) | 16:08 |
| elod | cfriesen: it's general and there's this patch https://review.openstack.org/#/c/554053/ (which unfortunately ends up in another bug with pip... see depends-on) | 16:09 |
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| mriedem | this spec also bakes business logic into the driver about how those resource pools are created in vcenter, i think | 16:10 |
| cdent | dansmith: since I'm not aware of the many bits of history involved with this stuff (either internal or external to vmware) why is that "wrong" instead of "different"? | 16:10 |
| mriedem | basically based on the name of the resource pool, it's encoded into the pool name which tells the virt driver what to do about it | 16:10 |
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| dansmith | cdent: because you can't schedule instances to it that span what nova thinks are uniform resources | 16:10 |
| dansmith | cdent: at least, that's my understanding of it at the moment | 16:11 |
| openstackgerrit | Lee Yarwood proposed openstack/nova stable/pike: libvirt: Block swap volume attempts with encrypted volumes prior to Queens https://review.openstack.org/543569 | 16:11 |
| openstackgerrit | Eric Berglund proposed openstack/nova master: PowerVM Driver: vSCSI volume driver https://review.openstack.org/526094 | 16:11 |
| dansmith | cdent: i.e. if you have a cluster with two 1G nodes, nova thinks you should be able to boot a 2G instance there but you can't | 16:11 |
| cdent | that's recently fixed via inventory handling with max_unit | 16:12 |
| dansmith | s/fixed/hacked | 16:12 |
| cdent | no | 16:12 |
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| cdent | you're asserting that targeting a cluster is wrong, and what I'm trying to understand why that's wrong | 16:12 |
| dansmith | it is a hack, because if you have memory available on one and cpu available on another, you can't represent that | 16:12 |
| dansmith | no, that's not what I'm saying | 16:12 |
| dansmith | I'm saying nova thinks the cluster is a single bag of resources that can be combined and that's wrong | 16:13 |
| dansmith | and I'm saying that I think the spec we're discussing is trying to rectify that by using multiple providers with the proper amounts of inventory each | 16:13 |
| mriedem | yeah it's trying to break the single cluster into multiple pools | 16:14 |
| cdent | the spec is trying to allow resource pools (a vmware thing that enables tenanted clusters) to work | 16:14 |
| mriedem | but it's also tying those pools to specific tenants | 16:14 |
| mriedem | like the aggregate multitenenancy isolation filter | 16:14 |
| mriedem | i think | 16:14 |
| dansmith | if it's purely for the tenantization, then that's not what I think it's trying to do, and isn't really a thing the virt driver should be doing | 16:14 |
| cdent | there will likely be other specs that try to turn clusters into hierarchies of nested providers so that an esxi host works much the same as targeting a particular numa setup | 16:14 |
| dansmith | ^that is what I thought the actual goal was under the covers | 16:15 |
| mriedem | so if the admin creates a resource pool A_foo in cluster 1, i think it means that nova is supposed to restrict all requests from tenant foo to resource pool A_foo in cluster 1 | 16:15 |
| dansmith | but if not, that's disappointing | 16:15 |
| cdent | okay, stepping back a bit: why do we care what a virt driver does if it follows the interface and allows things to land | 16:15 |
| cdent | I'm asking that as a real question, not as a rhetorical device | 16:15 |
| dansmith | because nova is an abstraction? | 16:16 |
| cdent | right, if the abstraction works and continues to work, what does it matter? | 16:16 |
| dansmith | the virt driver has to do more than mechanically implement the python interface to be something that a user can depend on | 16:16 |
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| dansmith | as an example, it doesn't work properly right now but it does implement the interface | 16:17 |
| cdent | and it is working to get better | 16:17 |
| cdent | using the tools that the interface provides | 16:17 |
| dansmith | this tenant grouping doesn't make it better | 16:17 |
| dansmith | it makes it more different in behavior than the others | 16:17 |
| mriedem | maybe the tenant isolation part of this should be split out | 16:18 |
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| mriedem | so it's just a generic way to model nested resource pools in a single cluster (which is represented by the compute node provider root in nova) | 16:18 |
| mriedem | and then the compute node RP for vmware doesn't have cpu/ram/disk, the nested resource pool providers do | 16:18 |
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| mriedem | and then later bake tenant isolation logic into it | 16:19 |
| mriedem | sorry for the bad timing but i've got a thing i've got to run to, back in awhile | 16:19 |
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| dansmith | at that point, the tenant isolation becomes much the same problem as efried pointed out with ensuring that you get CPU and memory from the same numa node on a regular box, | 16:19 |
| dansmith | which probably helps, if we decide that the virt drivers should draw aggregates around those groupings or whatever, | 16:19 |
| dansmith | or something | 16:20 |
| cdent | I suspect the tenant isolation is on the spec at all so that the resource pool stuff can be justified: it's a use case for wanting to represent resource pools | 16:20 |
| cdent | if that's needed and reasource pools are groovy, that's great | 16:20 |
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| efried | As I commented on https://review.openstack.org/#/c/534339/ the 1GB-from-each-of-two-children-to-make-one-2GB-instance thing shouldn't be a problem. | 16:20 |
| efried | BUT the "get my CPU from one RP and my disk from another" would be. | 16:20 |
| dansmith | efried: currently the former is a problem with the vmware driver AFAIK | 16:21 |
| dansmith | cdent: implementing the structurally separated resources in a cluster as nested providers of the root would make progress towards fixing that ^ and then makes the tenant isolation thing a smaller delta we can probably have a more reasonable discussion over | 16:22 |
| efried | To mitigate in UPT-land, you would have to do subtree lassoing like we talked about needing for NUMA; or you would have to model the cluster members as NOT being in the same tree. | 16:22 |
| cdent | dansmith: that's not what the spec does | 16:22 |
| cdent | resource pools are not physical | 16:22 |
| dansmith | efried: that's what I'm saying would be an improvement over what it does today | 16:22 |
| efried | which one dansmith? | 16:22 |
| cdent | if you have a problem with the cluster presented agglomerated resources as a single thing, then you'd have a problem with resource pools too | 16:22 |
| dansmith | efried: representing cluster members as children under the root | 16:23 |
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| cdent | max_unit, on either the cluster or the resource pool "fixes" that | 16:23 |
| efried | dansmith: Only if we have the subtree-lassoing technology. I haven't caught up on my specs yet - did someone propose that yet? | 16:23 |
| dansmith | cdent: max_unit does not prevent nova from thinking it can get cpu and memory from two different cluster members | 16:23 |
| efried | Agree ^^ | 16:23 |
| cdent | dansmith: yes, and? | 16:24 |
| dansmith | efried: right, I'm assuming the lassoing thing as well as changing this vmware RP exposure.. the two together would be required | 16:24 |
| dansmith | cdent: so max_unit has not "fixed" the vmware driver reporting a whole cluster as a single RP/node | 16:24 |
| efried | In that case, yes, I agree we can do this with nested. | 16:24 |
| cdent | the only way we get what you seem to want is for every esxi host to represent all its resources, which breaks the DRS, unless the virt driver can write allocations | 16:25 |
| dansmith | cdent: yeah, I think we've asserted that DRS under nova is broken, for that reason exactly | 16:25 |
| dansmith | broken fundamentally I mean | 16:25 |
| efried | cdent: I thought we talked about the fact that you want to hide the whole cluster-ness anyway? | 16:25 |
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| efried | Represent the whole thing as a single RP, and then vmware virt would do the individual node business under the covers. | 16:26 |
| cdent | efried: yes, dan's saying that's broken | 16:26 |
| dansmith | efried: that's what it does today, and it's breakable | 16:26 |
| dansmith | efried: because nova will not know that one node is out of CPU but has some memory available, where another node has the opposite.. nova will think it can schedule to that, but it can't | 16:26 |
| gjayavelu | @cdent @dansmith @efried I'm catching up on the discussions about the resource pools spec | 16:27 |
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| efried | dansmith: Okay, I agree with that. But I think the virt can probably mitigate | 16:27 |
| dansmith | efried: it can't | 16:27 |
| efried | ...by cleverly spoofing the inventories. | 16:27 |
| dansmith | oh, it could work around it that way sure | 16:28 |
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| dansmith | that's fairly wasteful though :) | 16:28 |
| efried | Basically by representing the least common denominator of the pool, as the inventory. | 16:28 |
| efried | Is it? | 16:28 |
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| dansmith | sure | 16:28 |
| efried | Because you wouldn't be able to schedule more than that anyway, wouldja? | 16:28 |
| dansmith | well, maybe you're right | 16:28 |
| cdent | yeah, you either fail to get allocation candidates, or you fail later | 16:29 |
| dansmith | well, no, | 16:29 |
| cdent | better to fail to get allocation candidates | 16:29 |
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| dansmith | you could have a node with small memory, small cpu, lots of disk, and another node with zero disk but lots of other resources.. you have to report yourself as fully committed at that point right? | 16:29 |
| efried | Okay, I see, if you had one node with 1VCPU/1024MEM and one with 2VCPU/512MEM, you would wind up representing 1/512 even though you could technically schedule 1/1024 or 2/512. | 16:29 |
| dansmith | cdent: also that | 16:29 |
| efried | dansmith: Yeah, I think we're saying the same thing. | 16:30 |
| dansmith | yar | 16:30 |
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| cdent | at the moment that is an accepted shortcoming | 16:30 |
| cdent | mostly because the common case is for everything in the cluster to be the same | 16:30 |
| efried | Yeah, was gonna say, homogeneity would make most of the issue moot. | 16:30 |
| dansmith | right but your flavors have to basically fit together perfectly like puzzle pieces to avoid too much fragmentation | 16:31 |
| cdent | ENOPARSE | 16:31 |
| openstackgerrit | sahid proposed openstack/nova master: libvirt: slow live-migration to ensure network is ready https://review.openstack.org/497457 | 16:31 |
| efried | I think it's a pretty solid 80/20 that's worth going forward with. | 16:31 |
| efried | Hypothetically the DRS will also reshuffle things to maintain/restore homogeneity, nah? That's kind of its job? | 16:32 |
| cdent | yes | 16:32 |
| cdent | well | 16:32 |
| cdent | it will shuffle things. but it can't move hardware | 16:33 |
| efried | understood. | 16:33 |
| dansmith | that doesn't fix anything if your flavors are different sizes | 16:33 |
| efried | It can | 16:33 |
| efried | because it can consolidate VMs in ways that maximize utilization of a node. | 16:33 |
| efried | If it's clever enough. | 16:33 |
| dansmith | it may be able to if things fit right, yes | 16:34 |
| cdent | even if its not clever enough, if vmware is being wasteful, that's vmware's problem, right? | 16:34 |
| efried | But anyway, IMO it's acceptable to state that we know this solution is not 100% perfect, and move forward with it, because it will work *mostly* well, *most* of the time. | 16:34 |
| openstackgerrit | Merged openstack/nova master: Revert "Refine waiting for vif plug events during _hard_reboot" https://review.openstack.org/553035 | 16:34 |
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| melwitt | cool, thanks gibi | 16:46 |
| melwitt | gibi, bauzas: I'd like to bring to your attention the draft for runways during the rocky cycle, if you have any feedback about it https://etherpad.openstack.org/p/nova-runways-rocky I'd like to kick of the process later this week so we can try it out and adjust it as we go | 16:48 |
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| gibi | melwitt: I opened that etherpad and I will try to check it tomorrow | 16:53 |
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| gibi | melwitt: seem like a pretty comprehensive doc | 16:53 |
| melwitt | gibi: cool, thanks. yeah, there's been a lot of feedback already last week, so np if there's nothing else you'd like to add or ask | 16:54 |
| gibi | melwitt: I will try to read it anyhow :) | 16:55 |
| melwitt | thanks. I'll ping bauzas again tomorrow as it looks like he's on PTO today | 16:55 |
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| openstackgerrit | Eric Berglund proposed openstack/nova master: PowerVM Driver: vSCSI volume driver https://review.openstack.org/526094 | 16:57 |
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| gibi | mriedem_away, alex_xu_ , mlavalle: thanks for the awesome review feedback on the bandwidth spec. I tried to answer the questions inline https://review.openstack.org/#/c/502306 | 16:58 |
| mlavalle | gibi: will take a look again soon. Thanks! | 16:59 |
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| gibi | mlavalle: thanks | 17:00 |
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| openstackgerrit | Ken'ichi Ohmichi proposed openstack/nova master: Remove version/date from CLI documentation https://review.openstack.org/553903 | 17:03 |
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| jaypipes | sorry y'all. off phone call now. reading back.. | 17:10 |
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| tssurya | dansmith: I had a question about the reset cache implementation on the scheduler manager as a part of the cell disable spec, is it a good time now ? If you are busy I can come back later | 17:13 |
| dansmith | tssurya: sure | 17:14 |
| tssurya | So I was implementing the reset cache option on the scheduler manager , however when using the scheduler client from nova manage to call this reset on the cache in the manager, doesn’t this become an upcall which we don’t support ? | 17:14 |
| tssurya | or am I not supposed to call this using the client from nova-manage ? | 17:15 |
| dansmith | tssurya: I was saying this should be done in a reset() handler on scheduler manager, which gets triggered on SIGHUP | 17:15 |
| dansmith | tssurya: correct, not from nova-manage or anything else, I thought I commented to that effect on the spec | 17:15 |
| tssurya | yes you did, I guess I didn't understand the SIGHUP very well | 17:15 |
| dansmith | tssurya: this is the example of a similar thing we have: https://github.com/openstack/nova/blob/master/nova/compute/manager.py#L543-L546 | 17:15 |
| dansmith | tssurya: so you can SIGHUP compute manager now to get it to clear the service version cache and rpc pin, which is the same sort of activity you're doing | 17:16 |
| tssurya | right, | 17:17 |
| tssurya | I need to "SIGHUP" the scheduler manager basically | 17:17 |
| dansmith | tssurya: yeah, we have a couple other signal handlers for things like guru meditation, etc | 17:20 |
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| lennyb | Hi, my nova instance got stuck in 'deleting' when I try to delete instance that failed to be deployed via ironic n-cell-child.service.log | 17:33 |
| lennyb | http://paste.openstack.org/show/704774/ | 17:33 |
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| openstackgerrit | Eric Fried proposed openstack/nova-specs master: Mention (no) granular support for image traits https://review.openstack.org/554305 | 17:41 |
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| efried | jaypipes, mriedem: ^ | 17:42 |
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| oomichi | melwitt: cdent: hi, do we have an approval at the PTG for https://blueprints.launchpad.net/nova/+spec/placement-extract ? | 17:46 |
| jaypipes | dansmith, mriedem: would you mind looking at https://review.openstack.org/#/c/534339/ please and letting me know if you agree with efried? I'm thinking I agree with him and if so, will abandon that and the following patch to it. | 17:46 |
| cdent | oomichi: the decision at ptg was to make progress in rocky, but not complete it, and not as a priority | 17:46 |
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| oomichi | cdent: I see, thanks. I just wanted to see the bp as approved | 17:47 |
| cdent | oomichi: I didn't actually create the bp until late last week, because efried suggested it would be useful. We hadn't really declared "let's have one" but it does seem like a good idea. | 17:48 |
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| melwitt | oomichi, cdent: yeah, seems useful to have it to track the work. I'll approve it | 17:50 |
| oomichi | cdent: yeah, bp is good for tracking patches | 17:50 |
| oomichi | melwitt: cool, thanks :) | 17:50 |
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| efried | cdent, jaypipes: (how) does forbidden traits play into glance image traits? | 17:55 |
| cdent | efried: i would guess the same as flavors? I haven't put that much thought into that side of things, just the api side | 17:57 |
| jaypipes | efried: I would expect that the format of specifying a forbidden trait would be the same. I would also expect that if there was a conflict between flavor's forbidden traits and image required traits (and vice versa), that we would bomb out. | 17:57 |
| efried | cdent: Oh, right (rereading the spec now), we haven't even tried to talk about how forbidden traits will be expressed in flavors, have we? | 17:57 |
| efried | Is that simply not planned for R? | 17:58 |
| * cdent doesn't know | 17:58 | |
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| jaypipes | efried: I would have thought that s//required/forbidden in the extra spec value field would be how we'd do it. | 17:59 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: libvirt: slow live-migration to ensure network is ready https://review.openstack.org/497457 | 17:59 |
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| openstackgerrit | Ken'ichi Ohmichi proposed openstack/nova master: Fix typos in release notes https://review.openstack.org/554175 | 18:02 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova stable/queens: Revert "Refine waiting for vif plug events during _hard_reboot" https://review.openstack.org/553817 | 18:06 |
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| melwitt | dansmith, mriedem: looks like we have an interesting bug here during an upgrade ocata -> pike where while reading a service record, if it doesn't have a uuid, we generate one and try to save it back to the object, but that fails with "Can't upgrade a READER transaction to a WRITE" because a read will start off with @pick_context_manager_reader and we can't upgrade to a writer in the middle of the transaction https://bugs.launchpad.net/n | 18:09 |
| melwitt | ova/+bug/1746509/comments/4 | 18:09 |
| melwitt | dangit | 18:09 |
| melwitt | https://bugs.launchpad.net/nova/+bug/1746509/comments/4 | 18:09 |
| openstack | Launchpad bug 1722404 in OpenStack Compute (nova) ocata "duplicate for #1746509 Database transactions can fail with "TypeError: Can't upgrade a READER transaction to a WRITER mid-transaction" because of scatter_gather_cells" [Undecided,In progress] - Assigned to Matt Riedemann (mriedem) | 18:09 |
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| dansmith | hmm, I'm not sure why it'd be different for scatter/gather | 18:10 |
| openstackgerrit | Matt Riedemann proposed openstack/nova stable/queens: Revert "Refine waiting for vif plug events during _hard_reboot" https://review.openstack.org/553817 | 18:10 |
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| melwitt | I don't think it's different. I think this is a separate different bug, but was highlighting the comment where someone explained what was going on | 18:11 |
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| dansmith | yeah, that explanation makes sense but I'm not sure why we weren't hitting that immediately is what I mean | 18:11 |
| melwitt | I think we fixed the scatter gather problem but this service record thing is separate and different | 18:11 |
| melwitt | oh | 18:12 |
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| melwitt | I assume we were ... trying to think if this scenario is covered by grenade or how it wouldn't be | 18:13 |
| dansmith | well, it should have manifested even in functional tests I would think | 18:13 |
| dansmith | we must be in a nested call where we're already in a reader transaction and we call to do a write, right? | 18:14 |
| melwitt | yeah, that would be the condition for that error being raised | 18:14 |
| dansmith | blanking out the context dumps that so we get a new transaction for the write | 18:14 |
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| melwitt | you mean the way that the commenter patched nova/objects/service.py? yeah | 18:18 |
| dansmith | yeah they used a new context | 18:18 |
| melwitt | yeah | 18:19 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova stable/pike: Revert "Refine waiting for vif plug events during _hard_reboot" https://review.openstack.org/553818 | 18:31 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova master: Use Queens UCA for nova-multiattach job https://review.openstack.org/554317 | 18:35 |
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| mriedem | dansmith: http://lists.openstack.org/pipermail/openstack-dev/2018-March/128487.html for the setuptools thing you were talking about before | 18:37 |
| mriedem | pkg_version | 18:37 |
| dansmith | ah cool | 18:37 |
| dansmith | migi: ^ | 18:37 |
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| dansmith | mriedem: did you see my comment on that patch for the obj_relationships thing? | 18:38 |
| mriedem | not yet | 18:39 |
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| melwitt | dansmith: from what I can tell, we only have unit test coverage for the uuid generation for service where things are mocked (and would anyway be a write to begin with), or calling _from_db_object selectively https://github.com/openstack/nova/blob/master/nova/tests/unit/objects/test_service.py#L145 | 18:44 |
| melwitt | to hit this, we'd have to have a functional test scenario where we read an already existing service record that has no uuid | 18:44 |
| melwitt | I can try writing one | 18:45 |
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| dansmith | hmm, I thought we did | 18:47 |
| dansmith | because that was mriedem | 18:47 |
| dansmith | and he looooves functional tests | 18:47 |
| dansmith | I would also have expected to hear more noise about this | 18:47 |
| dansmith | like, wouldn't the first compute startup after that patch merged cause nova-compute to not update its service record? | 18:48 |
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| mriedem | it was dtp with me helping, but it's a pretty established pattern, | 18:49 |
| mriedem | i.e. he copied it from compute_nodes.uuid, and aggregates.uuid | 18:49 |
| dansmith | yeah | 18:49 |
| dansmith | was just lookin gup the commit | 18:50 |
| * melwitt looks around | 18:50 | |
| mriedem | also https://github.com/dpeschman | 18:50 |
| mriedem | https://avatars3.githubusercontent.com/u/145098?s=400&v=4 | 18:50 |
| mriedem | i would like to know what's going on there | 18:50 |
| melwitt | lol | 18:50 |
| dansmith | even still, | 18:51 |
| dansmith | we're out of the db context at that point, so I'm not sure why this is happening anyway | 18:52 |
| dansmith | out of the pick_context_manager I mean | 18:52 |
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| openstackgerrit | Merged openstack/nova-specs master: Update placement aggregates spec to clarify generation handling https://review.openstack.org/548237 | 19:11 |
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| openstackgerrit | Dan Smith proposed openstack/nova master: Add AggregateList.get_by_metadata() query method https://review.openstack.org/544728 | 19:23 |
| openstackgerrit | Dan Smith proposed openstack/nova master: Add aggregates list to Destination object https://review.openstack.org/544729 | 19:23 |
| openstackgerrit | Dan Smith proposed openstack/nova master: Add request filter functionality to scheduler https://review.openstack.org/544730 | 19:23 |
| openstackgerrit | Dan Smith proposed openstack/nova master: Make get_allocation_candidates() honor aggregate restrictions https://review.openstack.org/547990 | 19:23 |
| openstackgerrit | Dan Smith proposed openstack/nova master: [WIP] Add require_tenant_aggregate request filter https://review.openstack.org/545002 | 19:23 |
| openstackgerrit | Dan Smith proposed openstack/nova master: WIP: Honor availability_zone hint via placement https://review.openstack.org/546282 | 19:23 |
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| mriedem | debugging weirdness during live migratoin would be a lot easier if we had thread ids in the logs... | 19:35 |
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| mriedem | sean-k-mooney: do you know if unbinding a port makes it automatically go to status=DOWN? | 19:40 |
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| mriedem | sean-k-mooney: https://review.openstack.org/#/c/434870/11/nova/compute/manager.py@1126 | 19:44 |
| mriedem | seeing issues during live migration where we handle the migration completed lifecycle event from the hypervisor and start unbinding the port while we're also going through _post_live_migration | 19:44 |
| mriedem | we blow up trying to unplug an unbound VIF | 19:45 |
| sean-k-mooney[m] | Im not sure. The status of an unbound port does not really have a meaning as it is effectively just a db entry when unbound. E. G. It dose not exist on the datapath when unbound. | 19:45 |
| mriedem | i ask because of https://github.com/openstack/neutron/blob/f2dced777acb7d87dc7048c3efec59dadf37930d/neutron/notifiers/nova.py#L186 | 19:45 |
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| mriedem | i'm seeing mysterious network-vif-plugged and network-vif-unplugged events around the time of the failure | 19:45 |
| mriedem | but they are coming before we unplug vifs on the source host | 19:46 |
| mriedem | might be getting network-vif-plugged events on the source host from when they were plugged on the dest host in pre_live_migration, | 19:47 |
| mriedem | the events are going to be routed to where the instance currrently lives, which is the source host until we switch | 19:48 |
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| mriedem | then we live migrate the guest, | 19:48 |
| mriedem | get the 'migration completed' lifecycle event from the hypervisor and start unbinding the port, | 19:49 |
| dansmith | mriedem: once there is a migration record, they'll be routed to both hosts | 19:49 |
| sean-k-mooney[m] | Well in the old workflow we don't unbind the port. We just update the host in the binding details. Yes i think the vif plugged events are from when the destination vif is plugged | 19:49 |
| mriedem | ok, i was only checking the source host logs, can check the dest host logs | 19:49 |
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| mriedem | sean-k-mooney[m]: this is the patch causing problems right now https://review.openstack.org/#/c/434870/ | 19:50 |
| mriedem | the thing that tried to do the early switch once were in post-copy | 19:50 |
| mriedem | *once we were in | 19:50 |
| jroll | jaypipes: dansmith: this is roughly what I recall from PTG about ironic RT stuff, does it make sense to you? https://review.openstack.org/#/c/545479/ | 19:50 |
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| mriedem | dansmith: hmm, not seeing the same event routed to both hosts | 19:53 |
| mriedem | but we should have a migration record at this point because i see on the dest host logs that we've plugged the vifs there in pre_live_migration | 19:53 |
| dansmith | mriedem: hang on I'm piecing this back together in my head just a sec | 19:55 |
| dansmith | jroll: ack, will look ater | 19:55 |
| dansmith | mriedem: https://github.com/openstack/nova/blob/master/nova/compute/api.py#L4547-L4559 | 19:56 |
| jroll | thanks | 19:56 |
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| mriedem | fwiw, i don't see https://github.com/openstack/nova/blob/master/nova/compute/api.py#L4556 in the logs | 19:56 |
| dansmith | mriedem: it will require migration_context to be set | 19:56 |
| mriedem | yeah that doesn't show up in the n-api logs http://logs.openstack.org/71/551371/6/check/legacy-tempest-dsvm-multinode-live-migration/4d466b2/logs/screen-n-api.txt.gz | 19:56 |
| mriedem | do we not lazy-load migration_context? | 19:56 |
| dansmith | okay, so maybe we haven't set migration context yet? | 19:56 |
| dansmith | mriedem: we query for it specifically in the api side: | 19:56 |
| dansmith | https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/server_external_events.py#L59-L61 | 19:56 |
| mriedem | yup | 19:56 |
| dansmith | more likely we haven't .save()d it yet or something | 19:57 |
| mriedem | i only see apply_migration_context called in evacuate and resize flows, not live migration, | 19:58 |
| mriedem | is it set in the RT? | 19:58 |
| dansmith | not that I know of, so maybe we never set it for live migration? | 19:58 |
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| sean-k-mooney[m] | Right so it kindof makes sense when you activate the binding on the destination it deactivates the binding for the source which i guess results in vif unbound for the old host. How are we getting the vif on the source node that we pass to _nova_to_osvif_vif_unbound we should probably be cache the original vif object in the migration object | 19:59 |
| mriedem | right we don't do a move_claim for live migration, | 19:59 |
| mriedem | and RT.move_claim is what sets migration_context on the instance | 19:59 |
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| mriedem | sean-k-mooney[m]: heh way ahead of you https://review.openstack.org/#/c/515423/10/nova/objects/migrate_data.py@47 :) | 20:00 |
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| sean-k-mooney[m] | :) | 20:01 |
| mriedem | artom: fyi re the migration_context thing, since you wrote https://review.openstack.org/#/c/371048/ | 20:02 |
| mriedem | but i think ^ was just for evac cases, | 20:02 |
| mriedem | where the source is dead so we can't rpc there | 20:02 |
| dansmith | blast from ye olde past | 20:02 |
| mriedem | reminds me i need to touch up some dings in the woodwork with olde english | 20:03 |
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| SamYaple | other than a --hard reboot, is there a way to regenerate the libvirt.xml config? we changed the vnc listening address but we cannot migrate/live-migrate some instances due to pci passthrough of a sata controller | 20:12 |
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| sean-k-mooney2 | SamYaple: there is no way via nova to regenerate the xml that wont be equivalent to a reboot if you cant live migrate | 20:14 |
| sean-k-mooney2 | SamYaple: you could likely just do a domain xml update out of band. | 20:14 |
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| SamYaple | yea unfortunately not, but not for technical reasons | 20:15 |
| SamYaple | sean-k-mooney2: awesome. thought not. thanks for confirming | 20:15 |
| sean-k-mooney2 | SamYaple: if you update the vnc adress in the nova.conf you will also need to restart nova compute as i dont think that is one of the mutable config options either. | 20:16 |
| SamYaple | oh no worries. its all rolled out, just in the "applying" phase | 20:17 |
| SamYaple | we already live-mgirated 90% of the instances | 20:17 |
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| mriedem | sean-k-mooney[m]: yeah so i think changing the port binding changes the status, | 20:26 |
| mriedem | this is the source host neutron agent 2 seconds after nova updated the port binding to point at the dest host | 20:27 |
| mriedem | http://logs.openstack.org/71/551371/6/check/legacy-tempest-dsvm-multinode-live-migration/4d466b2/logs/screen-q-agt.txt.gz#_Mar_19_14_25_08_374523 | 20:27 |
| mriedem | binding host and status changes on the port in there | 20:27 |
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| mriedem | which according to this: https://github.com/openstack/neutron/blob/f2dced777acb7d87dc7048c3efec59dadf37930d/neutron/notifiers/nova.py#L186 will trigger a network-vif-unplugged event | 20:28 |
| sean-k-mooney2 | right so looking at that ports binding_details its an ovs vif with ovs_hybrid_plug": true so os-vif will plug the vif on the destination ovs during pre livemigrate and neutron will emit the vif plugged events as it wires them up | 20:29 |
| mnaser | does anyone know if there's some sort of variable you can use in docs to output the current version/release | 20:30 |
| mnaser | reason - https://docs.openstack.org/nova/queens/cli/nova-manage.html -- this doc and many others have old versions listed | 20:30 |
| mnaser | i can update it manually but it'll probably be forgotten again :> | 20:30 |
| mriedem | mnaser: https://review.openstack.org/#/c/553903/ | 20:31 |
| mnaser | mriedem: oh well there you go, that's a solution | 20:32 |
| sean-k-mooney2 | mriedem: ok so the vif plugged event is coming from the pre livemigrate when os-vif adds the port to ovs and the unplug event is coming form activateing the binding on the destenation host. is that the order it happens in | 20:33 |
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| openstackgerrit | Merged openstack/nova master: Don't filter out sibling sets with one core https://review.openstack.org/537361 | 20:35 |
| mriedem | sean-k-mooney2: yes i think so, | 20:37 |
| mriedem | sean-k-mooney2: i'm confused as to why neutron thinks the port is unbound though | 20:37 |
| mriedem | this is on both the source and dest neutron agent | 20:37 |
| mriedem | http://logs.openstack.org/71/551371/6/check/legacy-tempest-dsvm-multinode-live-migration/4d466b2/logs/screen-q-agt.txt.gz#_Mar_19_14_25_08_821754 | 20:37 |
| mriedem | http://logs.openstack.org/71/551371/6/check/legacy-tempest-dsvm-multinode-live-migration/4d466b2/logs/subnode-2/screen-q-agt.txt.gz#_Mar_19_14_25_09_150483 | 20:37 |
| sean-k-mooney2 | subnode-2 is the source node correct | 20:38 |
| mriedem | yes | 20:38 |
| sean-k-mooney2 | this is where the vif is pulled on the destination in prelivemigrate http://logs.openstack.org/71/551371/6/check/legacy-tempest-dsvm-multinode-live-migration/4d466b2/logs/screen-n-cpu.txt.gz#_Mar_19_14_25_03_105245 | 20:38 |
| mriedem | this is where the source n-cpu changes the port binding host_id to the dest host http://logs.openstack.org/71/551371/6/check/legacy-tempest-dsvm-multinode-live-migration/4d466b2/logs/subnode-2/screen-n-cpu.txt.gz#_Mar_19_14_25_06_838681 | 20:41 |
| mriedem | in q-svc, i see this http://logs.openstack.org/71/551371/6/check/legacy-tempest-dsvm-multinode-live-migration/4d466b2/logs/screen-q-svc.txt.gz#_Mar_19_14_25_06_991106 | 20:41 |
| mriedem | Device cd0afcf3-c654-488e-b578-6d3c45f3a5a5 not bound to the agent host ubuntu-xenial-rax-dfw-0003055550 | 20:41 |
| mriedem | so i guess that's why the vif type is 'unbound'? | 20:42 |
| mriedem | but i'm not sure why that is because we plugged the vif on the dest host before all that | 20:42 |
| sean-k-mooney2 | well this is where we plug it on the destination in the q-agt log http://logs.openstack.org/71/551371/6/check/legacy-tempest-dsvm-multinode-live-migration/4d466b2/logs/screen-q-agt.txt.gz#_Mar_19_14_25_03_126952 | 20:48 |
| sean-k-mooney2 | and then right after it updates the vif_type to unbound http://logs.openstack.org/71/551371/6/check/legacy-tempest-dsvm-multinode-live-migration/4d466b2/logs/screen-q-agt.txt.gz#_Mar_19_14_25_04_008234 | 20:49 |
| openstackgerrit | Merged openstack/nova master: Ensure emulator threads are always calculated https://review.openstack.org/537363 | 20:49 |
| openstackgerrit | Merged openstack/nova master: [libvirt] Add _get_numa_memnode() https://review.openstack.org/529906 | 20:50 |
| mriedem | sean-k-mooney2: hmm yeah wtf | 20:50 |
| sean-k-mooney2 | so its the neutron agent on the destination that is seting the status to down and vif_type to unbound. | 20:50 |
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| sean-k-mooney2 | it kind of makes sense. at this point the vif is still bound on the host and we have not activated the vif on the dest but we just plugged it | 20:51 |
| mriedem | this is all before nova hits the lifecycle post-copy event and switches the port binding, so presumably this already all happens today during live migration | 20:51 |
| openstackgerrit | Ed Leafe proposed openstack/nova master: Address issues raised in adding member_of to GET /a-c https://review.openstack.org/554357 | 20:51 |
| edleafe | efried: ^^ gift-wrapped just for you | 20:51 |
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| sean-k-mooney2 | mriedem: do we do the vif plugging in pre_livemigrate today or is it down after we bind the port on the destination after livemigration completes | 20:52 |
| mriedem | the dest host plugs the vif in pre_live_migration today | 20:53 |
| mriedem | source rpc calls to dest pre_live_migration, and then once that rpc call returns, the source starts live migrating the guest in the hypervisor | 20:53 |
| sean-k-mooney2 | ok so ya we should be seeing the same bevavior. | 20:54 |
| mriedem | this was part of the thing where the source host needs to wait for the vif plugged event from the dest | 20:54 |
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| mriedem | before it starts transferring the guest | 20:54 |
| mriedem | i haven't coded that part up yet | 20:54 |
| mriedem | for all i know, given https://review.openstack.org/#/c/553035/ - can we even reliably wait for vif-plugged on the source if the host binding hasn't changed? | 20:55 |
| sean-k-mooney2 | when you call self.network_api.migrate_instance_finish(context, instance,...) does that activate the port binding on the dest | 20:55 |
| mriedem | or will opendaylight never send a vif-plugged event in that case? | 20:55 |
| mriedem | sean-k-mooney2: it switches the binding host_id yeah, sec | 20:55 |
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| mriedem | https://github.com/openstack/nova/blob/master/nova/network/neutronv2/api.py#L2577 | 20:56 |
| mriedem | in this case, that host variable is the dest host | 20:56 |
| mriedem | that's what we see here http://logs.openstack.org/71/551371/6/check/legacy-tempest-dsvm-multinode-live-migration/4d466b2/logs/subnode-2/screen-n-cpu.txt.gz#_Mar_19_14_25_06_838681 | 20:56 |
| mriedem | on the source host | 20:56 |
| sean-k-mooney2 | mriedem: im not sure if odl will remit the event but i dont think that would be an unreasonable expectation. | 20:57 |
| mriedem | sean-k-mooney2: from what i remember of the discussion leading up to https://review.openstack.org/#/c/553035/ with mnaser, ODL will only emit events for host binding changes, not vif unplug/plug | 20:57 |
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| mriedem | which really kind of kills us as the consumer of this workflow... | 20:58 |
| sean-k-mooney2 | yes and when we activate the binding for the dest that should be considered a binding change as we update the host_id in the port bindings_details field on the port | 20:58 |
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| mriedem | yeah, but the plan was to not start migrating the guest in the hypervisor until the source got the event that the plug, initiated from the dest, is done | 21:00 |
| _ix | Good afternoon, folks. Can anyone explain the pipeline from the fine work that's going into nova and the end repositories at say http://mirror.centos.org/centos/7/cloud/x86_64/openstack-pike/ | 21:00 |
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| sean-k-mooney2 | mriedem: right so we might have to start the migrate on a timeout and have the event short circute it, instead of waiting | 21:01 |
| mriedem | really kind of need an admin-only field on the port to tell clients, like nova, if we can expect vif plug events or not | 21:01 |
| _ix | I'm only seeing latest as 16.0.3 in that repo -- is there a different repository that you mgith be able to recommend for 16.1.0 ? | 21:02 |
| mriedem | sean-k-mooney2: we could, but then anyone using ODL is going to wait up to 5 minutes for an event that's not going to come | 21:02 |
| mriedem | _ix: you could try asking in #openstack-rpm-packaging | 21:02 |
| sean-k-mooney2 | mriedem: ill double check the odl code. ill be back in the office tomorrow so i can try and set up an odl environment | 21:03 |
| mriedem | _ix: or maybe #rdo | 21:03 |
| mriedem | sean-k-mooney2: ok for now i'm just going to neuter this lifecycle event callback code that calls migrate_instance_finish | 21:03 |
| sean-k-mooney2 | well we can still activate the dest binding when we get the hyperviors event that it just paused the source and is about to unpause the dest right | 21:05 |
| sean-k-mooney2 | we just dont wait for the vif plugged event | 21:05 |
| mriedem | two separate issues, | 21:05 |
| mriedem | i'm going to neuter the first right now because it's causing this vif unbound explosion in _post_live_migrate | 21:06 |
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| mriedem | the latter issue is not something we're hitting right now, but was in the plan as part of this spec | 21:06 |
| sean-k-mooney2 | ah ok | 21:06 |
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| openstackgerrit | Merged openstack/nova master: Move placement exceptions into the placement package https://review.openstack.org/549862 | 21:17 |
| _ix | mriedem: Thanks for the tips. | 21:17 |
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| jaypipes | phew, my brain is melting today... | 21:27 |
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| cdent | was it the videophone jaypipes ? | 21:38 |
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| edleafe | efried: ugh - I had all those changes, and then rebased poorly after the original member_of patch merged. Fixing... | 21:40 |
| efried | edleafe: Here to keep you honest. I feel your rebase pain, homey. | 21:41 |
| edleafe | efried: heh, trying to keep things straight while half-paying attention to meetings | 21:42 |
| cdent | efried: "I have looked at this." beyond that and the typos, do you think I'm on the right track? | 21:45 |
| efried | cdent: The unedited version was something like, "I have looked at this. I have no idea what I'm looking at, so I am abstaining from voting." | 21:46 |
| cdent | ah, that makes a bit more sense | 21:46 |
| efried | cdent: "...and the time it would take me to figure out what I'm looking at doesn't fit in my current budget (still ploughing through vacation backlog)." | 21:47 |
| cdent | if/when you surface from that and you want a tour, let me know | 21:47 |
| cdent | thanks for looking in any case, I'm always glad to have your proofing | 21:48 |
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| edleafe | efried: let | 22:08 |
| edleafe | oops | 22:08 |
| openstackgerrit | Ed Leafe proposed openstack/nova master: Address issues raised in adding member_of to GET /a-c https://review.openstack.org/554357 | 22:08 |
| edleafe | efried: let's try this again ^^ | 22:08 |
| efried | ack | 22:08 |
| jaypipes | cdent: nah, trying to fix the nested providers alloc candidates stuff | 22:09 |
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| efried | mriedem: 1.19 was for bp placement-aggregate-generation. Gerrit likes to overwrite the topic for all patches when submitting a series, which is how 1.19 ended up in the whiteboard for https://blueprints.launchpad.net/nova/+spec/generation-from-create-provider. FTFY. | 22:19 |
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| efried | mriedem: You can mark https://blueprints.launchpad.net/nova/+spec/placement-aggregate-generation done too. | 22:22 |
| mriedem | melwitt: totally random but i was just doing some blame game and came across https://review.openstack.org/#/c/377093/1/nova/rpc.py | 22:22 |
| mriedem | melwitt: ever noticed that RequestContext(overwrite) kwarg is not used at all in that patch? | 22:22 |
| mriedem | https://review.openstack.org/#/c/377093/1/nova/context.py@72 | 22:23 |
| mriedem | efried: done | 22:24 |
| efried | thx | 22:24 |
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| melwitt | mriedem: yeah, it's used in the base context class from oslo https://github.com/openstack/oslo.context/blob/a8d86df/oslo_context/context.py#L225 | 22:25 |
| mriedem | oh i see | 22:26 |
| melwitt | it's kind of unclear though, being lumped into **kwargs like that | 22:26 |
| mriedem | have been trying to figure out wtf periodic tasks are running with a request id which is the same request id i'm tracking for an instance create operation | 22:26 |
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| melwitt | ah, okay. I'd like to know how that happens too | 22:27 |
| mriedem | well, when the periodics run, they call get_admin_context | 22:27 |
| mriedem | which doesn't overwrite the thread local context | 22:28 |
| mriedem | so i guess that's why | 22:28 |
| melwitt | oh, so they just get whatever was there. yeah | 22:28 |
| mriedem | https://github.com/openstack/nova/blob/master/nova/service.py#L295 | 22:28 |
| mriedem | which are run from this thread group timer https://github.com/openstack/nova/blob/master/nova/service.py#L213 | 22:28 |
| mriedem | but it makes tracing a failed operation for a specific instance really frustrating if everything else picks up the thread local version | 22:29 |
| melwitt | right | 22:29 |
| melwitt | I have this old patch up around generating an admin context up front and storing it on the service for use in periodic tasks (to help us get to configuring CellDatabases differently). I'm not sure if it would do any better than the current situation though https://review.openstack.org/#/c/524306 | 22:30 |
| melwitt | like, I'm not sure if that initial get_admin_context in the service creation might also get tied to some unhelpful request id | 22:30 |
| melwitt | er, service.start() I mean | 22:31 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova master: Add VIFMigrateData object for live migration https://review.openstack.org/515423 | 22:32 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: WIP: libvirt: use dest host vif migrate details for live migration https://review.openstack.org/551370 | 22:32 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: WIP: Port binding based on events during live migration https://review.openstack.org/434870 | 22:32 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Add "delete_port_binding" network API method https://review.openstack.org/552170 | 22:32 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: compute: use port binding extended API during live migration https://review.openstack.org/551371 | 22:32 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: conductor: use port binding extended API in during live migrate https://review.openstack.org/522537 | 22:32 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: WIP: Turn on new port binding extended live migrate flow https://review.openstack.org/552173 | 22:32 |
| mriedem | it shouldn't if we're not calling get_admin_context() every time the periodic runs | 22:33 |
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| mriedem | i was going to try setting the request_id='req-%s' % self.service_ref.uuid so we'd have a predictable request id in periodics, but that would just be ignored since get_admin_context uses overwrite=False | 22:34 |
| melwitt | okay, then that patch might help then. it got stalled on me not providing a reliable poison fixture for making sure nothing in periodics tries to get_admin_context on their own. and gibi proposed something better around that. but I haven't gotten back to it | 22:35 |
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| dansmith | mriedem: I'm still not sure how that makes sense, | 22:49 |
| dansmith | the periodics are their own (eventlet) thread, they should have their own TLS | 22:49 |
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| dansmith | not sure why they shouldn't be able to set their TLS there | 22:49 |
| dansmith | I'd guess that overwrite=False is actually for the case where some user operation needs an admin context to do something specific, and you don't want to leave them with admin when you're done | 22:50 |
| dansmith | but periodics probably *should* overwrite TLS in that case | 22:50 |
| dansmith | I would also expect TLS to be reset on each spawn/switch of a thread, otherwise you leak things between requests until you set TLS _to_ something | 22:51 |
| mriedem | i assume overwrite=False was added to get_admin_context() for a wholly different reason than why we're using get_admin_context() for periodics | 22:51 |
| dansmith | that's what I'm saing | 22:52 |
| dansmith | for a localized "okay, do this thing for the user as admin" | 22:52 |
| dansmith | looking up a fixedip before assignment, etc | 22:52 |
| dansmith | that's why I'm saying we probably want overwrite=True for periodics | 22:52 |
| dansmith | that kinda goes against the original supposition of melwitt's patch to client RPC though | 22:53 |
| melwitt | here's the original bug that led to using overwrite=False https://bugs.launchpad.net/nova/+bug/1627838 | 22:53 |
| openstack | Launchpad bug 1627838 in OpenStack Compute (nova) newton "Context is reset to by ClientRouter in nova/rpc.py" [High,Fix committed] - Assigned to Matt Riedemann (mriedem) | 22:53 |
| dansmith | hmm, I don't get that | 22:54 |
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| melwitt | yeah, I guess that was a different thing. normally we run periodics with get_admin_context which does an overwrite=False and when I added a different unrelated periodic I didn't use get_admin_context and inadvertently made it overwrite=True without realizing it | 23:00 |
| melwitt | and the reported problem was that the periodic was blowing away other requests auth token in-flight | 23:01 |
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| dansmith | although ClientRouter does schedule periodics quite differently from service it seems | 23:01 |
| melwitt | yeah, maybe there is something wrong with how it's running periodics? | 23:03 |
| dansmith | well, | 23:03 |
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| dansmith | I'm wondering if that's why it needed overwrite=False, but our periodics in compute manager need overwrite=True | 23:03 |
| melwitt | oh, I see | 23:04 |
| dansmith | melwitt: that thing needed periodics to age out clients but that code seems gone I think, so can we remove thatl ine anyway? | 23:04 |
| melwitt | yeah, I was thinking that too | 23:04 |
| dansmith | so we're running periodics in our managers via threadgroup timers, which I assume run in threads of their own, but I should check | 23:06 |
| dansmith | mriedem: yeah, so that _remove_stale_clients() periodic was removed later, so we should nuke that line | 23:06 |
| dansmith | er, melwitt ^ | 23:06 |
| melwitt | ack. I can propose that | 23:07 |
| openstackgerrit | Matt Riedemann proposed openstack/nova master: Remove RequestContext.instance_lock_checked https://review.openstack.org/554378 | 23:10 |
| mriedem | more cleanup while i was poking around ^ | 23:10 |
| dansmith | so I'm not exactly seeing how the way periodics are used in ClientRouter would have worked, other than the single go of them run via __init__ | 23:11 |
| dansmith | but my guess is that they're not run the way we run them in our service | 23:11 |
| dansmith | melwitt: do we know for sure that those periodics ever ran more than once? | 23:11 |
| dansmith | that code wasn't in the tree for very long, so.. | 23:11 |
| dansmith | it sure looks like we just fired them off once during __init_ and never ran them again | 23:12 |
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| dansmith | which is also puzzling as to why that would be a problem needing to be reported, but the bug doesn't have much info | 23:13 |
| melwitt | dansmith: maybe not. ClientRouter inherits from oslo PeriodicTasks, so it would do this https://github.com/openstack/oslo.service/blob/master/oslo_service/periodic_task.py#L193 | 23:13 |
| dansmith | melwitt: well, it does that once when you run it in __init__ | 23:13 |
| dansmith | but I don't see where that gets scheduled any other place | 23:14 |
| dansmith | service.py will do it, but you're not a service there | 23:14 |
| dansmith | and the tests just fire the handler manually | 23:16 |
| melwitt | hm | 23:16 |
| dansmith | (as expected, we don't really have good coverage over periodics) | 23:16 |
| dansmith | https://www.youtube.com/watch?v=C9MG9b4mEU0 | 23:17 |
| melwitt | lol, great movie | 23:18 |
| dansmith | the only thing I can think of, | 23:18 |
| dansmith | would be that we instantiate a new compute rpc class for certain things at runtime, | 23:19 |
| dansmith | and maybe we blow away whatever context was current at that time, | 23:19 |
| dansmith | because anything running ComputeRPCAPI.__init() will run ClientRouter.__init__(), which will instantiate a context with overwrite=True before your patch | 23:19 |
| dansmith | er, rpcapi.ComputeAPI() I mean | 23:20 |
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| melwitt | yeah :\ | 23:20 |
| dansmith | mriedem: so I think maybe chatting with someone like dhellmann might be a good idea, but I kinda think we should be running with overwrite=True on those periodics' context | 23:22 |
| dansmith | I'd also like someone to tell me why TLS isn't cleared when a new thread is spawned and/or would like to confirm that timers as we use them to start periodics in our services are actually running in their own threads and not as if they were signal handlers | 23:24 |
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| openstackgerrit | Matt Riedemann proposed openstack/nova master: Fix message for unexpected external event https://review.openstack.org/554380 | 23:26 |
| mriedem | ok, but not tonight | 23:27 |
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| openstackgerrit | melanie witt proposed openstack/nova master: Remove useless run_periodic_tasks call in ClientRouter https://review.openstack.org/554381 | 23:31 |
| melwitt | dansmith, mriedem ^ I left the related overwrite=False regression test case alone thinking we would address that when we get answers about what we should be doing with overwrite + periodics later | 23:34 |
| dansmith | melwitt: hmm, I'm not sure what that test is testing TBH | 23:35 |
| dansmith | I'm pretty fried and well past punkin time, so I'll look tomorrow with a fresh head | 23:35 |
| melwitt | it's testing that we don't overwrite=True during periodics because at the time we thought that was messing up things | 23:35 |
| melwitt | okay, cool | 23:36 |
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| dansmith | I don't think it does though, because we just start the service and then assert our thing, | 23:42 |
| dansmith | I don't think we know that the periodics have run yet | 23:42 |
| dansmith | we don't run service.periodic_tasks() until the first time we fire the timer, which is delayed from startup, and that's where context gets generated for the periodic run | 23:43 |
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