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#openstack-nova - 2018-07-10
09:52:37 flwang1 fanzhang: nope, let me try
09:53:06 flwang1 oh, i don't have nova user in my system
09:56:15 openstackgerrit Yikun Jiang (Kero) proposed openstack/nova master: Microversion 2.64 - Use new format policy in server group https://review.openstack.org/567534
09:58:24 fanzhang flwang1 emmm...my env is packstack, and I am pretty sure I have nova user :) Check the owner and owning group of your folder on previous state_patch ?
09:58:54 flwang1 i did and i'm using the same user/user group and it still doesn't work :(
09:59:39 flwang1 fanzhang: i will monitor it for a while and will see
10:01:00 sapd_ Hi everyone. I'm looking for the change which implement rebuild for volume-backed instance.
10:01:34 flwang1 sapd_: that's the one i worked on 3 years ago :(
10:01:36 flwang1 and i failed
10:02:00 fanzhang flwang1 ok, good luck :)
10:02:12 flwang1 fanzhang: thank you very much anyway ;)
10:02:37 openstackgerrit huanhongda proposed openstack/nova master: Microversion 2.64 - Add "deleted" time in GET server response https://review.openstack.org/574159
10:02:48 sapd_ flwang1: I'm using this patch https://review.openstack.org/#/c/528740/ for Pike release, But when I apply this patch for Queens release, It's not work again.
10:03:30 openstack bug 1779818 in OpenStack Compute (nova) "child's root provider is not updated." [Medium,In progress] https://launchpad.net/bugs/1779818 - Assigned to Tetsuro Nakamura (tetsuro0907)
10:03:30 openstackgerrit Merged openstack/nova master: Regression test for bug 1779818 https://review.openstack.org/580011
10:10:36 neha_alhat_ cdent: Hi
10:12:27 cdent hi neha_alhat_
10:12:41 stephenfin sahid: Comments left on https://review.openstack.org/#/c/580657. Fancy taking a look?
10:13:04 neha_alhat_ cdent: For some performance testing I want to create 100 RPs, for that I am writing python code.
10:13:35 neha_alhat_ cdent: 100 Resource providers*
10:14:33 neha_alhat_ cdent: using openstackclient: openstack resource provider create rp1
10:14:56 stephenfin mdbooth, lyarwood: I'm guessing this failing test is a race or the likes in our unit tests? http://logs.openstack.org/57/580657/2/check/openstack-tox-lower-constraints/607ab0c/job-output.txt.gz
10:15:14 stephenfin Looks unrelated to the actual change https://review.openstack.org/#/c/580657
10:15:22 mdbooth stephenfin: clicking
10:17:19 cdent neha_alhat_: if you do that in a loop with a different name each time, that ought to work. another way to do it is directly in python code that makes its own http requests to the service
10:17:42 neha_alhat_ cdent: But I am unable to create novaclient using openstackclient in python code. Like we can do in cinderclient: https://github.com/openstack/python-cinderclient/blob/master/cinderclient/v3/client.py#L51
10:17:46 mdbooth stephenfin: Weird!
10:18:35 stephenfin Right? It's the lower constraints job so we're using different requirements to usual but I can't see how that would be an issue
10:19:33 mdbooth stephenfin: I hit failures in those tests recently which didn't hit on python2. Any chance they run a different set of tests?
10:19:41 neha_alhat_ cdent: How can I create a http requests to the service through python code
10:19:51 stephenfin mdbooth: What do you mean a different set of tests?
10:20:00 neha_alhat_ cdent: like https://github.com/openstack/python-cinderclient/blob/master/cinderclient/v3/client.py#L51
10:20:04 cdent neha_alhat_: that's right, there is no "for use in code" placement client. This is because making your own is very straightforward. Have a look at the code around https://github.com/openstack/nova/blob/master/nova/scheduler/client/report.py#L270 for some ideas
10:20:08 mdbooth stephenfin: i.e. it runs unit tests which don't run in py27
10:20:26 stephenfin I don't think so https://github.com/openstack/nova/blob/master/tox.ini#L249
10:20:29 openstack Launchpad bug 1779711 in OpenStack Compute (nova) "test_pre_live_migration_volume_backed* intermittently fails serialized json compare" [Critical,Fix released] - Assigned to Matt Riedemann (mriedem)
10:20:29 gibi stephenfin: I think you see this https://bugs.launchpad.net/nova/+bug/1779711
10:20:45 stephenfin gibi: Yup, that looks like the one and the same
10:21:14 mdbooth gibi: Whoa...
10:21:28 mdbooth gibi: Ah... dict ordering
10:21:44 gibi yeah, good old dict ordering
10:21:50 stephenfin gibi: Not the first thing I've been caught out by ordering in recent days :)
10:21:54 stephenfin *first time
10:23:02 gibi python 3.7 adds stable dict key ordering https://docs.python.org/3/tutorial/datastructures.html#dictionaries
10:23:03 mdbooth Aren't all dicts ordered in the newest anguine offering?
10:23:07 stephenfin fwiw, Python 3.6+ dicts are insertion ordered, which is rather nice
10:23:10 mdbooth gibi: Snap ;)
10:23:16 stephenfin mdbooth: double snap
10:23:19 gibi :D
10:24:12 stephenfin I'm sure whoever is working on nova in 10 years or whenever we can drop Python < 3.6 support will be very happy
10:31:44 kashyap (Maybe there won't be any.)
10:35:16 neha_alhat_ cdent: yes, will check. Thanks
11:13:22 cdent johnthetubaguy: you still happy with https://review.openstack.org/#/c/543262/ ?
11:34:12 flwang1 i'm going to ask again, can anybody help understand how to set the local_gb for hypervisor? thanks
11:43:22 jroll flwang1: that's set by nova-compute when it updates its resources. it looks at the size of the block device that instances are on
11:43:53 flwang1 jroll: thanks, then my question is how can i change it?
11:44:39 jroll change local_gb? I don't believe you can. why do you want to?
11:45:38 flwang1 after installed devstack, i found the local_gb is too small because it's using my root /, though i have almost 800GB at /home
11:45:49 jroll ah
11:45:53 flwang1 but my / only has 30GB
11:46:06 jroll flwang1: there's a config option for where the instance data lives, you can change that
11:46:52 flwang1 ?
11:46:52 flwang1 #state_path = /opt/stack/data/nova
11:46:52 flwang1 #instances_path = /opt/stack/data/nova/instances
11:47:13 jroll yes, instances_path
11:47:34 flwang1 i changed them both and doesn't work
11:48:02 jroll did you restart nova-compute (and give it time to update resources)?
11:48:29 flwang1 yes, i did. i restarted all nova services
11:49:27 jroll hm, that's odd. I'm not sure if there's something else that needs to be done, hopefully someone else can help, sorry
11:50:53 flwang1 jroll: no worries, thank you for the help
11:51:01 jroll :)
11:52:32 efried Anyone happen to know where it's documented how/where we, as developers, are supposed to use translation macros in code?
11:53:39 flwang1 jroll: i think that's the issue, after restart the nova-compute, it's still trying to talk to the old path
11:53:42 flwang1 not sure why
11:54:29 jroll yeah, that would be my guess
11:54:49 jroll efried: this is a good start: https://docs.openstack.org/oslo.i18n/latest/user/guidelines.html
11:54:59 efried Thanks jroll
11:55:00 jroll primarily "All text messages the user sees via exceptions or API calls should be marked for translation"
11:55:14 efried jroll: Yeah, I need something even more basic than that, for karimull.
11:55:41 openstackgerrit Yikun Jiang (Kero) proposed openstack/nova master: Fix all invalid obj_make_compatible test case https://review.openstack.org/574240
11:55:47 jroll I'm not sure how to make that more basic :/
11:56:52 efried jroll: See https://review.openstack.org/#/c/569498/10..11/nova/conductor/manager.py
11:59:22 efried I.e. need to describe what "marked for translation" means. I think that doc works.
11:59:37 jroll efried: yeah, I don't have anything better
12:00:06 efried karimull: After you've looked at the doc, let me know if you'd like some more background.
12:06:20 sahid stephenfin: thanks for your eye on this. I just replied
12:07:56 openstackgerrit Merged openstack/nova master: Handle compare in test_pre_live_migration_volume_backed* directly https://review.openstack.org/580702
12:18:51 mago_ Hi team, I'm working on GPU Passtrough on OpenStack. I would like to limit the number of GPUs available to a user / project. There is no quotas for Passthrough resources and I was wondering why ? I was googling around but found no where a similar question.
12:22:37 mago_ Side question, as quotas are not only for Nova, but also for the Network and Block Storage services, is there a better place to ask my question ?
12:23:30 openstackgerrit Yikun Jiang (Kero) proposed openstack/python-novaclient master: Microversion 2.64 - Use new format policy in server group https://review.openstack.org/578261
12:24:36 efried mago_: You mean like project-wide? Cause I would imagine there probably wouldn't be enough GPUs on a single host for quotas to make much sense.
12:24:49 efried mago_: but are you talking about physical or virtual GPUs?
12:26:55 jaypipes johnthetubaguy: https://review.openstack.org/#/c/543262/ could use your +2 restoration.
12:27:38 mago_ efried, well you could imagine a cluster with nodes with 4 to 8 GPU cards, if you have let's say 10 nodes, you can have up to 80 GPUs available. I think a quota would make sense.
12:27:44 jaypipes mago_: there is no quota class for either virtual or physical GPUs, no.
12:28:22 mago_ efried, I talk about GPU cards, passed to VMs using passthrough (also called Direct Device Assignment)
12:29:24 efried mago_: Yup, got it. I defer to jaypipes here, perhaps he can explain why there are no quotas.
12:30:08 jaypipes mago_: I can't explain *why* there are no quotas for GPUs. or at least, I can't explain that without some seriously opinionated rant about how our PCI manager system was created.
12:31:13 mago_ jaypipes, do you know why, I mean is it technically not possible because of the way quotas are implemented, or could it be imagined ? for GPUs, or for passthrough resources in general
12:32:12 jaypipes mago_: quotas were not considered by the creators of the pci management module in nova.

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