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#openstack-nova - 2017-11-30
17:18:16 openstackgerrit Merged openstack/nova master: check query param for server groups function https://review.openstack.org/500347
17:29:09 openstackgerrit Ildiko Vancsa proposed openstack/nova master: Implement new attach Cinder flow https://review.openstack.org/330285
17:29:09 openstackgerrit Ildiko Vancsa proposed openstack/nova master: libvirt: Allow multiple volume attachments https://review.openstack.org/267587
17:31:40 cfriesen melwitt: (or anyone else) has bug 1469179 been fixed with placement/resource_providers?
17:31:41 openstack bug 1469179 in OpenStack Compute (nova) "instance.root_gb should be 0 for volume-backed instances" [Medium,In progress] https://launchpad.net/bugs/1469179 - Assigned to melanie witt (melwitt)
17:34:10 melwitt cfriesen: not yet. at the ptg when we discussed placement priorities, other items were more pressing, like alternate hosts and nested resource providers. so shared storage got bumped to rocky
17:39:00 mriedem melwitt: i've got a workaround for the compute node create / cell issue
17:39:03 mriedem pushing up shortly
17:39:07 mriedem it's uber hacky, but...
17:39:12 mriedem it's also pretty simple
17:40:24 melwitt okay, thanks. that'll help me determine what's wrong unless it's the periodic task thing from the fixture review
17:41:30 openstackgerrit Andreas Karis proposed openstack/nova master: Fixes 'Not enough available memory' log message https://review.openstack.org/524038
17:42:50 openstackgerrit Eric Fried proposed openstack/nova master: Proper error handling by _ensure_resource_provider https://review.openstack.org/524263
17:42:51 mriedem this isn't a periodic task issue
17:43:03 efried cdent jaypipes --^
17:43:10 openstackgerrit Matt Riedemann proposed openstack/nova master: Add multi-cell negative test for cold migration with target host https://review.openstack.org/524027
17:43:10 openstackgerrit Matt Riedemann proposed openstack/nova master: Workaround CellDatabase fixture limitation when creating computes https://review.openstack.org/524264
17:43:13 mriedem melwitt: dansmith: ^
17:43:28 cdent thanks efried
17:44:24 openstackgerrit Dan Smith proposed openstack/nova master: Genericify the instance_list stuff https://review.openstack.org/524253
17:44:25 dansmith mriedem: melwitt: ^
17:44:25 cfriesen melwitt: okay, thanks. For the two patches that are up for review, are there problems with them or are they basically functional?
17:46:34 melwitt cfriesen: some people prefer not to take the cruft that will have to be removed later, when resource providers work is going on and the bug/limitation has always been there
17:47:15 efried jaypipes Want me to address https://review.openstack.org/#/c/377215/ ?
17:47:19 melwitt other than that, the patches are basically functional (though in merge conflict right now) and don't pollute any database records with root_gb=0
17:47:22 openstackgerrit Matt Riedemann proposed openstack/nova master: Add multi-cell negative test for cold migration with target host https://review.openstack.org/524027
17:47:23 cfriesen melwitt: I'm just wondering about taking it as a local patch...we previously had fixed it a different way in Newton
17:48:11 cfriesen melwitt: I expect we'll pull them in and try them out.
17:49:01 mriedem dansmith: ack, will hit that after lunch
17:49:04 melwitt mriedem: it pains me how similar that is to what I'm trying to do with my patch. I just don't get what I missed yet
17:50:06 mriedem ease that pain with pills
17:50:16 dansmith mriedem: I'm thinking I need to follow up with a split of that file into the generic listing infrastructure, and the instance part of that so that the migration dudes can do the same
17:50:57 mriedem yeah, so instance_list is the instance-specific impl, and we'd have migration_list with that specific impl
17:51:02 mriedem and some generic module in between
17:51:18 mriedem not sure what that would be called? multi_cell_list?
17:51:25 dansmith yep something liket hat
17:51:30 dansmith sound good?
17:51:33 mriedem yeah
17:52:16 openstackgerrit Merged openstack/nova master: Remove setting of version/release from releasenotes https://review.openstack.org/520373
17:52:27 jaypipes efried: I can do that. are there any of your changes you haven't pushed?
17:53:10 jaypipes efried: in particular, I'll rebase through 520246, so make sure I don't overwrite any of your work...
17:53:28 efried jaypipes No, but note that I want to break away the stuff above
17:53:41 efried jaypipes Sorry, redo: No, don't rebase that far up.
17:53:52 efried I'm breaking off the subseries starting at uuid_set()
17:53:55 jaypipes efried: where should I go to.
17:53:57 jaypipes ok.
17:54:02 jaypipes no prob. gimme a few minutes
17:54:15 efried So just rebase from https://review.openstack.org/#/c/385693/ (which needs a rebase onto its predecessor too)
17:54:57 efried jaypipes ^
17:55:09 jaypipes ya
18:01:33 cdent efried: left some questions on that bug fix, looks mostly good, but I’m curious about some bits
18:01:48 efried cdent Ack, thanks for the review. Looking...
18:04:10 openstackgerrit Dan Smith proposed openstack/nova master: Split instance_list into instance and multi_cell https://review.openstack.org/524302
18:07:44 mgagne mriedem: so I reread the placement documentation and it's kind of clear already what you need to do. There are some details which need to be updated such as mention of cellsv1. I will pass through the doc again and see if it's clearer for me now.
18:10:51 openstackgerrit Jay Pipes proposed openstack/nova master: placement: allow filter providers in tree https://review.openstack.org/377215
18:10:52 openstackgerrit Jay Pipes proposed openstack/nova master: placement: adds REST API for nested providers https://review.openstack.org/384807
18:10:52 openstackgerrit Jay Pipes proposed openstack/nova master: placement: update client to set parent provider https://review.openstack.org/385693
18:10:55 jaypipes efried: done
18:11:05 efried jaypipes Cool mon.
18:13:01 openstackgerrit melanie witt proposed openstack/nova master: Improve the CellDatabases test fixture and usage https://review.openstack.org/508432
18:13:02 openstackgerrit melanie witt proposed openstack/nova master: WIP Store a RequestContext on service to reuse for periodic tasks https://review.openstack.org/524306
18:14:42 melwitt mriedem: the test in https://review.openstack.org/#/c/524027 passes with the above ^
18:16:38 openstackgerrit Eric Fried proposed openstack/nova master: Proper error handling by _ensure_resource_provider https://review.openstack.org/524263
18:16:50 efried cdent Not sure if I addressed your concerns here ^
18:17:23 efried cdent I wouldn't think it necessary to say, "Exceptions raised from here may be caught, logged, or ignored by callers as appropriate"
18:19:11 efried cdent Really just brings things more in line with other methods in SRC, like _update_inventory_attempt which may raise InventoryInUse
18:19:40 melwitt mriedem: *reading the commit message* so your test doesn't always fail though? trying to confirm if the test passing means the issue in my patch was addressed by the latest changes I tried
18:20:04 cdent efried: that wasn’t quite what I meant. You’re obliged, as someone who has introduced a new situation, where exceptions are now raising that weren’t before, to make sure they don’t break other stuff. That can be as simple as identifying the loop where all Exceptions are handled in the scheduler or the resource trackers servers.
18:20:47 efried cdent OIC. Not enough to pass the CI?
18:21:13 cdent We’ve established over and over that CI isn’t covering lots of stuff, especially in the resource tracker
18:21:54 cdent It’s very likely, however, that this _is_ covered, by the kinds of loops that I mention above, but if you don’t say that in your commit message, then reviewers have doubt and we want to minimize that doubt
18:22:08 efried cdent I was being mostly ironical. I'll dig into it. Thanks.
18:26:31 efried cdent AFAICT, it all percolates up to this catch-all, which... ignores it https://github.com/openstack/nova/blob/master/nova/compute/manager.py#L7105
18:27:43 cdent i assumed it would be something like that, and logging and ignoring is what I would expect: it’s a long running process that’s not allowed to die
18:28:13 cdent but if for some reason that was some subclass of Exception, then there would be a chance your new exception would fall through and boom
18:30:53 openstackgerrit Eric Fried proposed openstack/nova master: Proper error handling by _ensure_resource_provider https://review.openstack.org/524263
18:30:59 efried cdent Added more words ^
18:39:09 mriedem melwitt: it was failing
18:45:44 openstackgerrit Eric Fried proposed openstack/nova master: Remove workaround for bug #1709118 https://review.openstack.org/524316
18:45:45 openstack bug 1709118 in OpenStack Compute (nova) "_ContextAuthPlugin needs a refresh" [Low,Confirmed] https://launchpad.net/bugs/1709118
18:54:35 mriedem dansmith: comments in https://review.openstack.org/#/c/524253/2
18:54:43 mriedem just nits, tests are passing, looks good otherwise
18:57:18 melwitt mriedem: hm, so that points to it being related to the periodic task bug dansmith found in my patch. but the initial write of the compute node record doesn't happen via periodic task, it happens through the pre_start_hook() call in Service. so I'm not sure why fixing the periodic task helps
18:58:30 dansmith mriedem: see my reply real quick
18:58:53 dansmith melwitt: a periodic would create another record in cell0 if it runs
18:59:04 dansmith that was my point
18:59:22 melwitt dansmith: right ... trying to think how that could mess up mriedem's test though, where it got ComputeHostNotFound
18:59:41 melwitt like wouldn't it find the original record that was written via pre_start_hook()
19:00:15 dansmith melwitt: ack, okay, I haven't looked at his thing so I dunno
19:00:20 dansmith just commenting from the sidelines
19:00:56 melwitt ack :)
19:01:29 mriedem dansmith: done
19:02:08 melwitt fixing the periodic task thing (by storing it on Service) made the test pass but why O.o
19:02:30 dansmith mriedem: cool, see the split above it?
19:03:58 mriedem yeah, just haven't reviewed it yet
19:05:24 dansmith gahd dammit
19:05:37 dansmith making changes to a file underneath a rename is annoying :)
19:08:04 mriedem cdent: easy cleanup if you want to respin this https://review.openstack.org/#/c/484667/
19:08:06 mriedem then i'd fast approve
19:08:52 cdent cool, thanks, will get it in a couple minutes, rado’s usually gone by now

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