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#openstack-nova - 2018-10-03
01:14:48 openstackgerrit Merged openstack/nova stable/pike: Follow devstack-plugin-ceph job rename https://review.openstack.org/602022
01:14:55 openstackgerrit Merged openstack/nova stable/pike: Fix unit test modifying global state https://review.openstack.org/584592
02:36:21 openstackgerrit Tetsuro Nakamura proposed openstack/nova stable/rocky: Fix aggregate members in nested alloc candidates https://review.openstack.org/607454
04:21:31 mnaser has anyone seen behaviour (on queens) where doing pci passthrough for gpus, qemu-kvm process goes up but seems to be spinning at 100% cpu and the process is stuck?
04:21:46 mnaser strace just shows a bunch of ioctl's and poll's
04:22:43 mnaser nothing weird in dmesg or journals
04:23:31 mnaser nova side looks ok.. "Final resource view: name=<snip> phys_ram=524194MB used_ram=66560MB phys_disk=1863GB used_disk=225GB total_vcpus=48 used_vcpus=6 pci_stats=[PciDevicePool(count=7,numa_node=0,product_id='102d',tags={dev_type='type-PCI'},vendor_id='10de')]"
04:45:20 mnaser Hmm, I have some leads. I might push some doc changes for the pci passthrough
04:45:28 mnaser Dunno if it’s okay to have docs that are more hardware specific
04:45:41 mnaser Something along the lines of https://github.com/dholt/kvm-gpu/blob/master/README.md
05:22:06 takashin cd /tmp
06:00:56 gmann nova API office hour time
06:01:34 gmann #startmeeting nova api
06:01:35 openstack Meeting started Wed Oct 3 06:01:34 2018 UTC and is due to finish in 60 minutes. The chair is gmann. Information about MeetBot at http://wiki.debian.org/MeetBot.
06:01:36 openstack Useful Commands: #action #agreed #help #info #idea #link #topic #startvote.
06:01:38 openstack The meeting name has been set to 'nova_api'
06:01:43 gmann PING List: gmann, alex_xu
06:08:41 gmann hanging around for some time if anyone has query related to API
06:14:22 openstackgerrit OpenStack Proposal Bot proposed openstack/nova stable/rocky: Imported Translations from Zanata https://review.openstack.org/604260
06:32:36 gmann let's close office hour.
06:32:39 gmann #endmeeting
06:32:41 openstack Meeting ended Wed Oct 3 06:32:39 2018 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)
06:32:42 openstack Minutes: http://eavesdrop.openstack.org/meetings/nova_api/2018/nova_api.2018-10-03-06.01.html
06:32:43 openstack Minutes (text): http://eavesdrop.openstack.org/meetings/nova_api/2018/nova_api.2018-10-03-06.01.txt
06:32:44 openstack Log: http://eavesdrop.openstack.org/meetings/nova_api/2018/nova_api.2018-10-03-06.01.log.html
06:37:40 openstackgerrit Merged openstack/nova stable/ocata: Update RequestSpec.flavor on resize_revert https://review.openstack.org/605880
06:47:09 openstackgerrit Merged openstack/python-novaclient master: Fix up userdata argument to rebuild. https://review.openstack.org/605341
07:10:03 bauzas good morning nova
07:28:53 gibi morning
07:41:48 openstackgerrit Balazs Gibizer proposed openstack/nova master: Refactor allocation checking in functional tests https://review.openstack.org/607287
07:41:48 openstackgerrit Balazs Gibizer proposed openstack/nova master: Use provider tree in virt FakeDriver https://review.openstack.org/604083
07:41:49 openstackgerrit Balazs Gibizer proposed openstack/nova master: Ignore forcing of live migration for nested instance https://review.openstack.org/605785
07:41:49 openstackgerrit Balazs Gibizer proposed openstack/nova master: Run ServerMovingTests with nested resources https://review.openstack.org/604084
07:41:50 openstackgerrit Balazs Gibizer proposed openstack/nova master: Ignore forcing of evacuation for nested instance https://review.openstack.org/606111
07:41:50 openstackgerrit Balazs Gibizer proposed openstack/nova master: Consider nested allocations during allocation cleanup https://review.openstack.org/606050
07:41:51 openstackgerrit Balazs Gibizer proposed openstack/nova master: Run negative server moving tests with nested RPs https://review.openstack.org/604125
07:52:35 openstackgerrit Balazs Gibizer proposed openstack/nova master: consumer gen: support claim_resources https://review.openstack.org/583667
07:52:36 openstackgerrit Balazs Gibizer proposed openstack/nova master: Use provider tree in virt FakeDriver https://review.openstack.org/604083
07:52:36 openstackgerrit Balazs Gibizer proposed openstack/nova master: Enable nested allocation candidates in scheduler https://review.openstack.org/585672
07:52:37 openstackgerrit Balazs Gibizer proposed openstack/nova master: Run ServerMovingTests with nested resources https://review.openstack.org/604084
07:52:37 openstackgerrit Balazs Gibizer proposed openstack/nova master: Refactor allocation checking in functional tests https://review.openstack.org/607287
07:52:38 openstackgerrit Balazs Gibizer proposed openstack/nova master: Consider nested allocations during allocation cleanup https://review.openstack.org/606050
07:52:38 openstackgerrit Balazs Gibizer proposed openstack/nova master: Ignore forcing of live migration for nested instance https://review.openstack.org/605785
07:52:39 openstackgerrit Balazs Gibizer proposed openstack/nova master: Run negative server moving tests with nested RPs https://review.openstack.org/604125
07:52:39 openstackgerrit Balazs Gibizer proposed openstack/nova master: Ignore forcing of evacuation for nested instance https://review.openstack.org/606111
08:47:13 ralonsoh stephenfin: https://review.openstack.org/#/c/476612/36/vif_plug_ovs/ovsdb/ovsdb_lib.py@83. I don't understand this
08:47:56 ralonsoh stephenfin: do you mean I need to move this function... where?
08:54:02 openstackgerrit Rodolfo Alonso Hernandez proposed openstack/os-vif master: Add abstract OVSDB API https://review.openstack.org/476612
09:02:41 stephenfin ralonsoh: Sorry, yeah, I mean move that above 'create_ovs_vif_port' or below 'delete_ovs_vif_port', so that 'create_', 'update_' and 'delete_' are grouped together
09:02:49 stephenfin ralonsoh: It's a nit though. Don't worry about it
09:02:56 ralonsoh stephenfin: done!
09:03:01 stephenfin Oh, perfect :)
09:03:07 stephenfin I'll review that now
09:38:38 openstackgerrit Stephen Finucane proposed openstack/nova master: doc: Add minimal documentation for RDP consoles https://review.openstack.org/606992
09:38:38 openstackgerrit Stephen Finucane proposed openstack/nova master: doc: Rewrite the console doc https://review.openstack.org/606148
09:38:39 openstackgerrit Stephen Finucane proposed openstack/nova master: conf: Allow 'nova-xvpvncproxy' to be called with CLI args https://review.openstack.org/606929
09:38:39 openstackgerrit Stephen Finucane proposed openstack/nova master: doc: Add minimal documentation for MKS consoles https://review.openstack.org/606993
09:47:20 bauzas does anyone know how to unstack/stack devstack with OFFLINE=True for a single project ?
09:47:37 bauzas I mean, I have all my stack but I just want to reinstall nova from master
09:49:22 sean-k-mooney bauzas: unstack, then manually git pull/checkout master on the nova repo set OFFLINE=True and stack
09:50:13 sean-k-mooney devstack wont update any of the projects and just used what is availabel
09:50:44 sean-k-mooney if you are unlucky you might need to pip install requirements form master if they have changed but that rarely is required
09:51:01 bauzas sean-k-mooney: that was my plan but I had the assumption that it would redeploy *all* projects from ENABLED_SERVICES
09:51:20 sean-k-mooney bauzas: it will
09:51:24 sean-k-mooney is that an issue
09:51:24 bauzas sean-k-mooney: my point is that I just want to init_nova() honestly
09:51:40 sean-k-mooney oh well dont unstack then
09:51:47 bauzas sean-k-mooney: my need is just that now that I reshaped some inventories, I just want to reshape back
09:52:22 sean-k-mooney just checkout the branch you want and run sudo systemctl restart devstack@n-*
09:53:16 sean-k-mooney if reshape is done by nova manage change restart to stop, then run nova manage and then start
09:55:29 sean-k-mooney as long as there are no schema migrations in between your current branch and the one your going to and no requiremetns changes you dont need to restack to change commit. just git checkout and restart service X
09:58:13 cdent yeah, that's what I was going to suggest
10:08:28 stephenfin bauzas: Could you look at pushing https://review.openstack.org/#/c/456572/ through?
10:17:37 bauzas sean-k-mooney: the problem is that the inventories are reshaped
10:17:50 bauzas sean-k-mooney: so a DB sync won't work, right?
10:17:59 bauzas because all the tables are there
10:18:14 sean-k-mooney bauzas: you can always drop the tables and then sync i guess
10:19:03 bauzas if I'm dropping the tables, I miss eg. https://github.com/openstack-dev/devstack/blob/master/lib/nova#L722-L723
10:19:17 bauzas sean-k-mooney: ^
10:20:36 sean-k-mooney i dont think there is any magical way to reshape witout deleting the reshaped RPs and restarting nova compute
10:20:45 sean-k-mooney that is what i ment by droping the tables
10:21:33 bauzas I think I'll just unstack/unstack for this time, and snapshot the DB
10:22:15 bauzas so, when I want to go backwards, I'll just use the dumpfile
10:22:17 sean-k-mooney ya that would work but other then for local testing is there a reason you are trying to downgrade?
10:22:35 bauzas sean-k-mooney: no, just testing indeed
10:23:31 sean-k-mooney if you have never used it https://www.heidisql.com/ is a great little tool for working with dbs
10:23:51 bauzas well
10:23:55 sean-k-mooney you need to run it under wine however
10:24:02 bauzas just for what I want, a mysqldump is enough
10:36:33 sean-k-mooney the one thing that annoys me more then the fact that we use a 80 charter line lenght is that we configure pep8 on spec for 79 charters
10:43:06 openstackgerrit sean mooney proposed openstack/nova-specs master: Add spec for sriov live migration https://review.openstack.org/605116
10:57:24 stephenfin That moment of panic where you submit a review and spot a group of comments on older patchsets from the corner of your eye
10:57:48 stephenfin What *did* Stephen of June 2018 have to say about this...
11:08:59 mdbooth stephenfin: Fancy a bash at this one: https://review.openstack.org/#/c/605436/ I bitch about python3 in it ;)
11:09:24 openstackgerrit sean mooney proposed openstack/nova-specs master: Add spec for sriov live migration https://review.openstack.org/605116
11:39:48 sean-k-mooney mdbooth: one basic question regarding https://review.openstack.org/#/c/605436/5. the compaute manger runs on the compute agent which is singel treaded but uses eventlets. so there is no paralleism but there is concurancy. so the lock you are aquiring is the mockey patched greenthread lock. is the reason we need the lock in the first place the fact we are doing db io and eventlets is cause us to yeild
11:39:51 sean-k-mooney allow another invocation of the fuction to start concurrently which races
11:40:43 mdbooth sean-k-mooney: Without going into details of locking, I find it's safest to ignore eventlets entirely when considering locking.
11:41:01 mdbooth When you tie yourself in knots trying to second guess a scheduler, you make lots of mistakes.
11:41:11 sean-k-mooney mdbooth: if we did not have eventlets in this case we would not need to lock

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