| Posted | Nick | Remark | |
|---|---|---|---|
| #openstack-nova - 2021-09-07 | |||
| 16:22:11 | gibi | If you see a need for a specific cross project section then please let me know | |
| 16:22:40 | gibi | any question about the PTG? | |
| 16:22:58 | mloza | is there way to set extra_specs to an existing instance without modifying the db? | |
| 16:22:59 | gibi | I guess you can turn to bauzas about those as well as he is the PTL elect :)P | |
| 16:23:10 | bauzas | could we have a yoga mat for the PTG ? :D | |
| 16:23:15 | gibi | mloza: let get back to you at the Open Discussion section | |
| 16:23:29 | gibi | bauzas: sure you can, please buy one in decatlon | |
| 16:23:33 | gibi | :) | |
| 16:24:13 | gibi | #topic Stable Branches | |
| 16:24:20 | gibi | elodilles_pto is off | |
| 16:24:25 | gibi | so we don't have status update on the wiki | |
| 16:24:32 | gibi | but I guess stable is OK :) | |
| 16:24:54 | gibi | any stable issue? | |
| 16:24:59 | bauzas | either way, we're entering a pretty quiet period about stable | |
| 16:25:27 | gibi | I have one news we pushed stable os-vif releases today | |
| 16:25:38 | gibi | https://review.opendev.org/c/openstack/releases/+/807694 | |
| 16:25:41 | gibi | https://review.opendev.org/c/openstack/releases/+/807696 | |
| 16:25:44 | gibi | victoria and ussuri | |
| 16:25:53 | gibi | anyhow moving on | |
| 16:26:05 | gibi | #topic Sub/related team Highlights | |
| 16:26:11 | gibi | Libvirt (bauzas) | |
| 16:26:13 | gibi | ? ;) | |
| 16:26:22 | bauzas | nothing to say | |
| 16:26:30 | gibi | #topic Open discussion | |
| 16:26:37 | gibi | nothing on the agenda | |
| 16:26:42 | gibi | mloza: your turn | |
| 16:26:52 | gibi | mloza: do you mean flavor extra_specs? | |
| 16:26:59 | mloza | yup | |
| 16:27:17 | gibi | you have to resize the vm | |
| 16:27:20 | bauzas | embedded flavors can't be changed | |
| 16:28:44 | bauzas | unless you resize, indeed | |
| 16:29:54 | mloza | right now live migrating is failing because the instance doesn't have extra_specs that the flavor has. I cannot afford to the resize since it incurs a downtime | |
| 16:30:33 | dansmith | I don't think that's the reason for a live migration failure, right? | |
| 16:31:37 | mloza | i have host aggregates with metadata | |
| 16:31:52 | mloza | the metadata is associated to the flavors | |
| 16:32:10 | dansmith | I see, so it's the aggregate not the flavor | |
| 16:32:23 | dansmith | force migrate should skip that, no? bauzas ? | |
| 16:33:05 | gibi | force still runs the scheduler isn't it? | |
| 16:33:05 | bauzas | wait, was distracted, sorry | |
| 16:33:22 | bauzas | gibi: that depends on the microversion you ask | |
| 16:33:25 | gibi | true | |
| 16:33:38 | gibi | with old enough microversion you can skip the scheduler | |
| 16:33:42 | bauzas | mloza: which exact command do you run ? | |
| 16:33:43 | dansmith | I was going to say, I thought there was a way.. I mean that's how you break your AZ right? :) | |
| 16:34:23 | gibi | host=<new-host> force=True microversion <= 2.67 | |
| 16:34:32 | mloza | openstack server migrate --os-compute-api-version 2.30 --live-migration $id | |
| 16:34:49 | bauzas | with no target ? | |
| 16:34:59 | mloza | yep with no taret | |
| 16:35:02 | mloza | target* | |
| 16:35:04 | bauzas | if so, this goes to the scheduler | |
| 16:35:04 | gibi | you need < 2.30 and you nee d target | |
| 16:35:13 | bauzas | which checks this indeed | |
| 16:35:17 | gibi | https://docs.openstack.org/api-ref/compute/?expanded=live-migrate-server-os-migratelive-action-detail#live-migrate-server-os-migratelive-action | |
| 16:35:30 | dansmith | the scheduler is doing what you asked, in that case.. not sending the host to the aggregate that requires specific specs | |
| 16:35:35 | sean-k-mooney | mloza: if you dont pass a target then it will use the az form the request spec | |
| 16:35:37 | bauzas | gibi: or you can use 2.30 with the explicit force flag | |
| 16:35:52 | gibi | bauzas: yes, or <=2.67 and force=True | |
| 16:35:54 | bauzas | (which was deprecated later) | |
| 16:35:59 | bauzas | that, yes | |
| 16:36:35 | bauzas | I'd say, the contract is granted. | |
| 16:36:47 | bauzas | you're asking to migrate something you shouldn't migrate | |
| 16:37:02 | bauzas | I know this is weird | |
| 16:37:34 | sean-k-mooney | if you for the migration will that bypas the aggreate extra spec affintiy filter | |
| 16:37:42 | sean-k-mooney | i assume that is the one that is blocking the host | |
| 16:37:47 | sean-k-mooney | id did not think it would | |
| 16:37:49 | bauzas | but if all your hosts are within aggregates that set metadata and you have a filter that verifies this, then you explicitly write a contract | |
| 16:38:45 | sean-k-mooney | i guess with force we will just check the host exist and skip everything else with the old microverion? | |
| 16:39:05 | sean-k-mooney | that would leave the vm in a state the future move operation will try to move ti out of the aggreate you moved it into | |
| 16:39:32 | mloza | got it to live migrate after passing a target host | |
| 16:40:01 | gibi | OK, I guess that is solve then | |
| 16:40:03 | gibi | :0 | |
| 16:40:04 | gibi | :) | |
| 16:40:17 | gibi | any other topic for today? | |
| 16:42:10 | gibi | then lets closed this | |
| 16:42:17 | gibi | thanks for joining | |
| 16:42:23 | opendevmeet | Log: https://meetings.opendev.org/meetings/nova/2021/nova.2021-09-07-16.00.log.html | |
| 16:42:23 | opendevmeet | Minutes (text): https://meetings.opendev.org/meetings/nova/2021/nova.2021-09-07-16.00.txt | |
| 16:42:23 | opendevmeet | Minutes: https://meetings.opendev.org/meetings/nova/2021/nova.2021-09-07-16.00.html | |
| 16:42:23 | opendevmeet | Meeting ended Tue Sep 7 16:42:23 2021 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4) | |
| 16:42:23 | gibi | #endmeeting | |
| 16:42:59 | bauzas | holy shit, I was already knowing about it | |
| 16:44:35 | mloza | Thanks. I think the instance should have extra_specs and prefer live migrating without a target host. If I have to add to extra_specs in the instance, is it instance_extra table that I have to modify ? | |
| 16:45:03 | mloza | instance_uuid='a65b26f5-a278-4200-a573-84e01c685699'; which has "extra_specs": {"aggregate_instance_extra_specs:cephcomputestorage": "true"} | |
| 16:45:12 | mloza | https://paste.opendev.org/raw/bMf35OK3I9aYbCNCv9jm/ | |
| 16:45:59 | gibi | mloza: yepp if you want to hack the db then that is the place | |
| 16:47:04 | sean-k-mooney | well there are 2 palces | |
| 16:47:20 | sean-k-mooney | the instance extra table is what woud be used for generating the vm xml and on the compute node | |
| 16:47:56 | opendevreview | melanie witt proposed openstack/placement master: Narrow scope of set allocations database transaction https://review.opendev.org/c/openstack/placement/+/807014 | |
| 16:48:58 | sean-k-mooney | i woudl hope that is the same falvor we use for move operation inthat are not resize but we do also have flavor info in the request spec which is what is passed to the schduler filters | |
| 16:49:32 | sean-k-mooney | the schduler never uses the info in the instance_extra tabel driectly | |
| 16:51:18 | mloza | where does the scheduler pull info if not from instance_extra table ? | |
| 16:52:01 | sean-k-mooney | i belive we invoke the schduler with a populated request spec object when we do the select destioantion call form the conductor | |
| 16:52:16 | sean-k-mooney | but technially there is a request_sepcs table in the api db | |
| 16:52:23 | sean-k-mooney | with a serialised copy of the requst spec | |
| 16:53:15 | bauzas | sean-k-mooney: this is correct | |
| 16:53:25 | bauzas | but when you resize (eg.) you update the request spec | |
| 16:53:33 | sean-k-mooney | yes | |
| 16:53:37 | bauzas | for the flavor, I mean | |
| 16:53:40 | sean-k-mooney | but what about live migrate and cold migrate | |
| 16:53:48 | sean-k-mooney | do they just use the api db copy | |