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#openstack-nova - 2021-08-06
13:29:43 bauzas kashyap: we hadn't time to discuss about this blueprint :p
13:30:06 bauzas sean-k-mooney: as you want, anyway I'll be back on Tuesday, 2 days before FF
13:30:09 kashyap bauzas: I was supposed to pair on it, right? Yeah, downstream-- stuff completely engulfed me :-(
13:30:15 bauzas ;)
13:30:21 bauzas kashyap: heh no worries
13:31:25 stephenfin bauzas: will do
13:31:31 bauzas ta
13:33:30 kashyap bauzas: I was reading the mdev class code yesterday and then had to reboot the laptop and my memory flushed it. I know, I sound lame.
13:36:34 kashyap bauzas: Did you get around to testing it on real hardware? Or "don't ask?"
13:37:00 bauzas kashyap: I did
13:37:19 bauzas I even bubbled the hostname in some pastebin, whoops
13:37:26 bauzas :)
13:37:56 bauzas I was smart enough to keep the hardware that was given for me for testing the Ampere GPU :p
13:38:13 bauzas so, technically, I tested this series against MIG-backed vGPUs ;)
13:38:14 kashyap I see; yeah, I know the hardware acquis on this PITA
13:38:46 kashyap s/on this/here is a/
13:39:04 bauzas hopefully I should still have this server when I'm back :p
13:39:53 kashyap bauzas: The only thing I know about MIG is that it can divide the GPU into several "mini GPUs".
13:40:36 kashyap s/mini/flexible/
13:52:36 gibi I associate to a fighter jet when I see MIG. Can we virtualize fighter jets these days? :)
13:55:08 kashyap gibi: Heh, I too had to overwrite my memory to refer to a GPU instead of a fighter-jet
13:58:40 bauzas gibi: lolelly
13:59:39 gibi we had MIGs in the past, nowadays we have Grippens
14:00:23 opendevreview Balazs Gibizer proposed openstack/nova master: Block servers with vGPU and device profile in heal_allocations https://review.opendev.org/c/openstack/nova/+/803603
14:01:31 gibi bauzas: fixed the failing unit tests there ^^
14:08:17 opendevreview Stephen Finucane proposed openstack/nova master: tests: Speed up 'servers' API tests https://review.opendev.org/c/openstack/nova/+/778732
14:08:17 opendevreview Stephen Finucane proposed openstack/nova master: api: Rename 'parameter_types.hostname' -> 'fqdn' https://review.opendev.org/c/openstack/nova/+/778549
14:08:18 opendevreview Stephen Finucane proposed openstack/nova master: api: Pass request to 'addresses' view builder https://review.opendev.org/c/openstack/nova/+/803753
14:08:18 opendevreview Stephen Finucane proposed openstack/nova master: api: Add support for 'hostname' parameter https://review.opendev.org/c/openstack/nova/+/778550
14:08:19 opendevreview Stephen Finucane proposed openstack/nova master: tests: Sanity check some tests https://review.opendev.org/c/openstack/nova/+/803755
14:08:19 opendevreview Stephen Finucane proposed openstack/nova master: api: Remove unnecessary 'base_' prefix from schemas https://review.opendev.org/c/openstack/nova/+/803754
14:08:20 opendevreview Stephen Finucane proposed openstack/nova master: api: Remove various legacy extension prefixes https://review.opendev.org/c/openstack/nova/+/803756
14:08:21 opendevreview Stephen Finucane proposed openstack/nova master: api-ref: Update docs for microversion 2.89 https://review.opendev.org/c/openstack/nova/+/803758
14:08:21 opendevreview Stephen Finucane proposed openstack/nova master: api-ref: Rename prefixed parameter definitions https://review.opendev.org/c/openstack/nova/+/803757
14:11:06 bauzas gibi: maybe you got my last +2 before I leave
14:11:38 gibi bauzas: thanks
14:27:58 opendevreview Felix Huettner proposed openstack/nova stable/stein: Add functional test for bug 1937375 https://review.opendev.org/c/openstack/nova/+/803762
14:27:59 opendevreview Felix Huettner proposed openstack/nova stable/stein: compute: Avoid duplicate BDMs during reserve_block_device_name https://review.opendev.org/c/openstack/nova/+/803763
14:29:57 opendevreview Felix Huettner proposed openstack/nova stable/rocky: Add functional test for bug 1937375 https://review.opendev.org/c/openstack/nova/+/803764
14:29:58 opendevreview Felix Huettner proposed openstack/nova stable/rocky: compute: Avoid duplicate BDMs during reserve_block_device_name https://review.opendev.org/c/openstack/nova/+/803765
14:30:50 opendevreview Felix Huettner proposed openstack/nova stable/queens: Add functional test for bug 1937375 https://review.opendev.org/c/openstack/nova/+/803766
14:30:51 opendevreview Felix Huettner proposed openstack/nova stable/queens: compute: Avoid duplicate BDMs during reserve_block_device_name https://review.opendev.org/c/openstack/nova/+/803767
14:34:34 opendevreview Merged openstack/nova master: Add regression test for bug 1938326 https://review.opendev.org/c/openstack/nova/+/802801
14:38:02 stephenfin bauzas: done. Left comments on the last three patches in the series
14:38:23 bauzas stephenfin: OK, I have 20 mins to look at them ;)
15:11:22 gibi stephenfin: I have a question about the documentation of the ignoring of use_db_reconnect in https://review.opendev.org/c/openstack/nova/+/799524/3//COMMIT_MSG#24
15:12:06 stephenfin gibi: I can look into removing it from nova's config opts, but I have deprecated the option in oslo.db so we will be dropping it soon enough
15:12:45 stephenfin gibi: https://review.opendev.org/c/openstack/oslo.db/+/798133
15:13:31 stephenfin oh, wait, wrong config option
15:13:34 stephenfin :)
15:13:51 gibi you almost tricked me :)
15:14:09 stephenfin gibi: how about a simple check on nova-compute startup to warn if the option is set to a non-default value?
15:14:23 stephenfin i.e. "this option don't do nothing, foooool"
15:14:50 stephenfin I don't think the config generator supports excluding individual opts
15:15:37 gibi stephenfin: you mean other services than nova-compute as nova-compute cannot use direct db access
15:15:50 stephenfin sorry, yes
15:16:05 gibi an added warning works for me
15:16:11 stephenfin actually
15:16:21 stephenfin I have a patch to register options ourselves somewhere
15:16:31 stephenfin wonder can I simply del that option...
15:16:55 stephenfin actually, that won't help the docs generation problem
15:17:02 stephenfin warning it is
15:17:29 gibi ack
15:22:12 opendevreview Sylvain Bauza proposed openstack/nova master: Provide and use other RCs for mdevs if needed https://review.opendev.org/c/openstack/nova/+/803233
15:22:12 opendevreview Sylvain Bauza proposed openstack/nova master: Provide the mdev class for every PCI device https://review.opendev.org/c/openstack/nova/+/802918
15:22:13 opendevreview Sylvain Bauza proposed openstack/nova master: WIP: Cleanup GPU vs. mdev wording https://review.opendev.org/c/openstack/nova/+/803379
15:22:13 opendevreview Sylvain Bauza proposed openstack/nova master: Expose the mdev class https://review.opendev.org/c/openstack/nova/+/801743
15:22:17 bauzas gibi: stephenfin: uploaded latest rev of mdev series due to stephenfin's nits ^
15:22:36 bauzas stephenfin: to make it clear, we accept FOO as a mdev_class option value
15:22:45 bauzas then, we persist FOO in the object set
15:22:52 stephenfin bauzas: okay, what is FOO used for in that case?
15:23:09 stephenfin does it correspond to something on the device or in libvirt?
15:23:14 bauzas but when looking at the mdev_classes, we use the normalize_rc command to provide a CUSTOM_FOO RC name
15:23:17 stephenfin or is it purely used as an identifier?
15:23:36 bauzas that's why we have the helper and why we don't directly return the list of classes
15:23:55 bauzas stephenfin: no, purely an identifier given by the operator
15:24:08 bauzas it could be STEPHENFIN
15:24:08 stephenfin Okay, then why not insist on the CUSTOM_ prefix?
15:24:40 bauzas stephenfin: we could... but we haven't said this in the spec ;)
15:24:48 stephenfin it seems sensible, given this will be used placement
15:25:20 stephenfin I personally would expect my device with mdev_class FOO to use the same value in placement
15:25:24 stephenfin ...if I didn't know better
15:25:27 stephenfin ;)
15:25:52 stephenfin bauzas: does it make sense to you to do that though? We can amend the spec if needed
15:26:16 bauzas well, I wanted to stop working at 5pm :p
15:26:30 bauzas but I could do this this evening
15:26:54 bauzas I need to change a few things but ok
15:27:50 bauzas stephenfin: do you know how to accept an option value to have a specific prefix ?
15:28:02 stephenfin bauzas: like oslo.confg?
15:28:11 bauzas in oslo.config yes
15:28:13 stephenfin I just assumed we'd regex it away
15:28:26 bauzas oh shit you're right
15:28:36 stephenfin i.e. something like (VGPU|CUSTOM_[A-Z_])
15:28:45 stephenfin but more complete
15:28:46 stephenfin :)
15:31:07 zigo bauzas: Hi there ! After a failed migration (mistake in the host ssh keys), I cannot start a GPU instance, it's telling me: "libvirt.libvirtError: internal error: Device 0000:41:00.0 is already in use"
15:31:10 zigo How can I fix this ?
15:31:22 zigo bauzas: I'm asking you because it's an instance with a GPU, as you can see...
15:31:45 bauzas zigo: sorrry, I need to go off
15:31:55 bauzas but looks like you already use the mdev

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