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#openstack-nova - 2025-07-29
16:50:19 gibi last week we discussed that sp-bmilanov interested in the non-graceful restart case
16:50:33 gibi so we need something in the startup code path that prevents the original problem
16:51:36 sp-bmilanov gibi: yes, the ungraceful restart case is what we experienced ; sean-k-mooney pain point first, I am not sure if I can help implement something that you've triaged as so complex
16:51:37 gibi ie. the duplication of instances reported https://bugs.launchpad.net/nova/+bug/2092391
16:52:43 gibi I believe we should be able to detect during compute startup that we have a duplication based on the fact that one of the domain is on a host that is not equal to the instance.host
16:53:12 gibi or based on that we have an unfinished migration
16:53:16 gibi in the DB
16:53:33 sp-bmilanov just an aside, I guess that's is not a good approach since you haven't brought it up, but why not try using a flag in the database to check if the migration is at at point where the instance is running at the destination
16:53:39 sean-k-mooney so the duplciation i think weill need us to do an rpc to the dest compute
16:53:59 sean-k-mooney and determin if we shoudl revert or run post-live-migration
16:54:02 gibi sp-bmilanov: I hope we have a migration state that signals that already
16:55:50 opendevreview Stephen Finucane proposed openstack/nova master: api: Address issues with images APIs https://review.opendev.org/c/openstack/nova/+/956102
16:56:37 sean-k-mooney sp-bmilanov: so resumeing the guest is not done by nova
16:56:40 gibi anyhow I think it make sense to review a spec and perpare a PTG discussion about it
16:56:43 sean-k-mooney its doen by libvirt
16:56:55 sean-k-mooney and the scoue comput enode will update the dbstate if its still runing
16:57:15 sean-k-mooney the problem currently is if you restart it the thread we have monitoring the libvirt job will be killed
16:57:25 sean-k-mooney and we wont do that update.
16:57:57 sean-k-mooney but on startup we can see fi the job is still runing and either resume waiting or make an rpc to see if it scuceeded. or check if the vm is running lcoally
16:58:14 sean-k-mooney if its runnign locally and there is no migration job active in libvirt it mean the migratoin failed
16:58:25 sean-k-mooney if the vm is not local it means either it crashed or it moved
16:58:38 sean-k-mooney so we coudl be more intelegent on startup
16:58:48 sean-k-mooney but someone need to spend tiem documenting this bevhioer
16:58:50 sean-k-mooney and writing it up
16:59:10 sean-k-mooney so yes i think a spec/ptg discussion woudl be good
16:59:11 gibi yepp I agree
17:00:58 sp-bmilanov s/checked from the DB/set from the dst and then checked from the src from the DB/
17:01:32 sean-k-mooney well
17:01:45 sean-k-mooney the compute agent does not have direct db access for one
17:01:55 sean-k-mooney so just chekc the db state is already an rpc to teh conductor
17:02:06 sean-k-mooney but the responisbleity for updating the host of the vm is on the souce node
17:02:14 sean-k-mooney as part of post live migrate
17:02:33 sean-k-mooney so on start up if we need to check if tis on the dest node the source node need to call the dest to do that
17:02:52 sean-k-mooney i.e. asumeign the vm is not still running locally
17:03:39 sean-k-mooney we need to know if it crashed or if its actully active on the other host. and we can do that with only local knowlsage or by checkign the db.
17:04:50 Uggla We are on top of the hour. So I propose to close the meeting. ^ discusion can happen right after if needed.
17:05:06 sp-bmilanov thanks Uggla
17:05:20 Uggla Thanks all.
17:05:22 Uggla #endmeeting
17:05:22 opendevmeet Meeting ended Tue Jul 29 17:05:22 2025 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)
17:05:22 opendevmeet Minutes: https://meetings.opendev.org/meetings/nova/2025/nova.2025-07-29-16.02.html
17:05:22 opendevmeet Minutes (text): https://meetings.opendev.org/meetings/nova/2025/nova.2025-07-29-16.02.txt
17:05:22 opendevmeet Log: https://meetings.opendev.org/meetings/nova/2025/nova.2025-07-29-16.02.log.html
17:05:42 sp-bmilanov sean-k-mooney right, it makes sense that the DB will be of no use if the one responsible for the book-keeping there is the source
17:06:13 gibi I needs to drop. Thanks folks
17:07:29 sean-k-mooney Uggla: 16905 tests in 84.9128 sec. with 48 thread/24 cores even at only 2.5GHz you can run the test suite pretty fast
17:07:42 sean-k-mooney but looking at my slow tests
17:07:44 sean-k-mooney nova.tests.unit.api.openstack.compute.test_schemas.SchemaTest.test_schemas 25.415
17:07:59 sean-k-mooney 25 second for the schema tests seam a bit off
17:08:22 sp-bmilanov got to go as well, thanks sean-k-mooney, gibi!
17:08:22 sean-k-mooney the other ones at the top of the list i think are ones gibi is speeding up
17:09:35 Uggla yes the test schema seems surprisingly long
17:12:40 sean-k-mooney with gibi's speedup serise applied i get this https://paste.opendev.org/show/bN1SLJLLAhPmqGFIRNID/
17:13:01 sean-k-mooney so its liek 9 tiems slower the the nearest other test
17:19:59 sean-k-mooney https://paste.opendev.org/show/brPnnHtdLgbbaEFxJbfi/ 229.4782 sec. is not too bad for all the funcitonal tests on this host but its longer then i would perfer
17:54:09 opendevreview Stephen Finucane proposed openstack/nova master: api: Add response body schemas for server usage audit log APIs https://review.opendev.org/c/openstack/nova/+/953209
17:54:09 opendevreview Stephen Finucane proposed openstack/nova master: api: Add response body schemas for tenant network APIs https://review.opendev.org/c/openstack/nova/+/956088
17:54:10 opendevreview Stephen Finucane proposed openstack/nova master: api: Add response body schemas for simple tenant usage APIs https://review.opendev.org/c/openstack/nova/+/956096
18:29:23 opendevreview Merged openstack/nova master: Print ThreadPool statistics https://review.opendev.org/c/openstack/nova/+/948340
19:12:33 opendevreview Merged openstack/nova master: api: Add response body schemas for images APIs https://review.opendev.org/c/openstack/nova/+/952284
20:26:35 opendevreview Merged openstack/nova master: Replace eventlet.event.Event with threading.Event https://review.opendev.org/c/openstack/nova/+/949754
#openstack-nova - 2025-07-30
01:03:17 opendevreview melanie witt proposed openstack/nova master: Add hw_tpm_secret_security image property https://review.opendev.org/c/openstack/nova/+/940196
01:03:17 opendevreview melanie witt proposed openstack/nova master: Add hw:tpm_secret_security extra spec validation https://review.opendev.org/c/openstack/nova/+/940197
01:03:18 opendevreview melanie witt proposed openstack/nova master: TPM: migrate legacy instances to new security policy https://review.opendev.org/c/openstack/nova/+/942501
01:03:18 opendevreview melanie witt proposed openstack/nova master: TPM: support instances with `user` secret security https://review.opendev.org/c/openstack/nova/+/942502
01:03:19 opendevreview melanie witt proposed openstack/nova master: TPM: support instances with `host` secret security https://review.opendev.org/c/openstack/nova/+/941795
01:03:19 opendevreview melanie witt proposed openstack/nova master: Add vtpm_secret_(uuid|value) to LiveMigrateData https://review.opendev.org/c/openstack/nova/+/952628
01:03:20 opendevreview melanie witt proposed openstack/nova master: TPM: support live migration of `host` secret security https://review.opendev.org/c/openstack/nova/+/941483
01:03:21 opendevreview melanie witt proposed openstack/nova master: TPM: support instances with `deployment` secret security https://review.opendev.org/c/openstack/nova/+/942021
01:03:21 opendevreview melanie witt proposed openstack/nova master: TPM: support live migration of `deployment` secret security https://review.opendev.org/c/openstack/nova/+/925771
01:03:23 opendevreview melanie witt proposed openstack/nova master: TPM: test live migration between hosts with different security https://review.opendev.org/c/openstack/nova/+/952629
01:03:23 opendevreview melanie witt proposed openstack/nova master: TPM: update instance request_spec with secret security https://review.opendev.org/c/openstack/nova/+/952630
01:03:25 opendevreview melanie witt proposed openstack/nova master: TPM: confirm secret security via hard reboot https://review.opendev.org/c/openstack/nova/+/955847
01:12:59 opendevreview melanie witt proposed openstack/nova master: TPM: migrate legacy instances to new security policy https://review.opendev.org/c/openstack/nova/+/942501
01:13:00 opendevreview melanie witt proposed openstack/nova master: TPM: support instances with `user` secret security https://review.opendev.org/c/openstack/nova/+/942502
01:13:00 opendevreview melanie witt proposed openstack/nova master: TPM: support instances with `host` secret security https://review.opendev.org/c/openstack/nova/+/941795
01:13:01 opendevreview melanie witt proposed openstack/nova master: Add vtpm_secret_(uuid|value) to LiveMigrateData https://review.opendev.org/c/openstack/nova/+/952628
01:13:01 opendevreview melanie witt proposed openstack/nova master: TPM: support live migration of `host` secret security https://review.opendev.org/c/openstack/nova/+/941483
01:13:02 opendevreview melanie witt proposed openstack/nova master: TPM: support instances with `deployment` secret security https://review.opendev.org/c/openstack/nova/+/942021
01:13:02 opendevreview melanie witt proposed openstack/nova master: TPM: support live migration of `deployment` secret security https://review.opendev.org/c/openstack/nova/+/925771
01:13:03 opendevreview melanie witt proposed openstack/nova master: TPM: test live migration between hosts with different security https://review.opendev.org/c/openstack/nova/+/952629
01:13:03 opendevreview melanie witt proposed openstack/nova master: TPM: update instance request_spec with secret security https://review.opendev.org/c/openstack/nova/+/952630
01:13:05 opendevreview melanie witt proposed openstack/nova master: TPM: confirm secret security via hard reboot https://review.opendev.org/c/openstack/nova/+/955847
01:17:26 sean-k-mooney melwitt: im actully going to go to sleep now instead of saying i will and not but do you have tempest test for that and or a devstack config you can share. i dont think i have any locally with barbican but the rest is pretty simple.
01:17:33 sean-k-mooney oh you have whitebox https://review.opendev.org/c/openstack/whitebox-tempest-plugin/+/955969
01:18:47 melwitt sean-k-mooney: yes whitebox so far but I'm thinking of writing up some plain tempest tests also. thanks :)
01:19:19 sean-k-mooney https://zuul.opendev.org/t/openstack/build/c0bce36dbd29472bb743b4e883d0dfc0/log/controller/logs/local_conf.txt i can prbably steal the bit i will need form ther
01:19:39 sean-k-mooney ack ya whitebox is nice but not strictly needed for this
01:20:08 sean-k-mooney its useful for checkign the libvirt secrete flags in the deployment one
01:20:25 sean-k-mooney but the base functionalty can be done in core tempest
01:21:16 melwitt yeah the main configs you need are swtpm_enabled = True and supported_tpm_secret_security = <list>. there is also default_tpm_secret_security = <string> that you specify if you want
01:21:42 sean-k-mooney that and deploying barbican :)
01:21:55 melwitt also with barbican, the thing to know is if you have enforce_new_defaults = False then you need the 'creator' role to create secrets
01:21:58 sean-k-mooney which is the main thing missing form my config i think btu the rest is useful
01:22:18 melwitt if you have enforce_new_defaults = True then being a project member is good enough for creating secrets
01:22:55 sean-k-mooney melwitt: so i need to deploy my 3 node devstack with watcher ot test some other stuff but ill add barbican to it when i do and then probly next week ill checkout your tpm serise and try and use it
01:23:22 sean-k-mooney the new defautl shoudl be the default now
01:23:32 sean-k-mooney so ya member shoudl be fine or admin i guess fo rthe migration
01:23:32 melwitt sean-k-mooney: that would be super :) thanks
01:23:51 melwitt yeah admin for live migration unless you change the policy

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