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#openstack-nova - 2021-09-01
11:34:34 bauzas 20 years*
11:34:52 bauzas now, I'm limited by my clients, not by my bandwidth
11:35:13 sean-k-mooney i used to have semetriic 1gbps but they apparenly only did that for an intoductray trial and dropped my upload to 200mb. i have my home cloud offline for the last while but i was actully ortinnaly more interestedin getting native ipv6 which my current isp does not have an more upload so i could host a few things here
11:35:47 bauzas sean-k-mooney: yeah, I'm lazy with moving to v6
11:35:55 bauzas while I should
11:36:12 bauzas my ISP is proposing it and I could manage it
11:36:28 bauzas but I'm still concerned by 6to4
11:36:34 sean-k-mooney i used ot use hricane eltric to provide a tunnel for ipv6 but there latency has gone up recently so removed it about 2 months ago
11:36:57 bauzas that's the whole problem with v6
11:37:15 bauzas until the whole internet has moved, you'll face problems with 6 :(
11:37:16 sean-k-mooney my isp recentl up there price so im going to move before the end of the year but native ipv6 is on my list of things to look for
11:37:32 sean-k-mooney bauzas: oh we have dual stack connectivity
11:37:43 sean-k-mooney there is no ipv6 only isp in ireland
11:37:43 bauzas hah
11:38:10 sean-k-mooney most are still ipv4 only some offer native ipv6 in addtion
11:38:16 gibi I can write to my m2 ssd with 290MB/s you 1Gpbs download means ~128MB/s writing so a 2.5 Gpbs download would be limited by the local disk receiving the write
11:38:33 sean-k-mooney one even give you native ipv4 and ipv6 without CGNAT on teh ipv4 side but they are $$$$
11:39:04 bauzas sean-k-mooney: we have one provider that proposes ipv6 native
11:39:10 bauzas but this is an option
11:39:55 bauzas gibi: trust me, I know it ;)
11:40:11 bauzas a classic dd works
11:40:40 bauzas but when it's about collecting pieces from the internet and reassembling them on the fly, I'm
11:40:52 bauzas **really IO-bound, even with 1gbps :)
11:40:57 gibi yeah I can imagine
11:41:35 bauzas yeah, reading newsgroups takes time... :)
11:42:31 bauzas anyway, the dudes probably have stopped to work at the network room
11:42:32 sean-k-mooney god i havent done that in at least a decade. i did for a short while in collage but never found it a good way to consume info
11:42:47 bauzas looks like my gitches are gone
11:51:15 opendevreview Lee Yarwood proposed openstack/nova master: workarounds: Remove disable_native_luksv1 https://review.opendev.org/c/openstack/nova/+/805647
11:51:16 opendevreview Lee Yarwood proposed openstack/nova master: workarounds: Remove rbd_volume_local_attach https://review.opendev.org/c/openstack/nova/+/805648
11:52:59 opendevreview Stephen Finucane proposed openstack/python-novaclient master: tests: Add missing 'nova update' tests https://review.opendev.org/c/openstack/python-novaclient/+/806916
11:52:59 opendevreview Stephen Finucane proposed openstack/python-novaclient master: Add pre-commit https://review.opendev.org/c/openstack/python-novaclient/+/806915
11:52:59 lyarwood bauzas / gibi ; ^ should be ready now, apologies for the mix up with the reno.
11:53:00 opendevreview Stephen Finucane proposed openstack/python-novaclient master: trivial: Remove use of kwargs https://review.opendev.org/c/openstack/python-novaclient/+/806918
11:53:00 opendevreview Stephen Finucane proposed openstack/python-novaclient master: Microversion 2.90 - Configurable hostnames https://review.opendev.org/c/openstack/python-novaclient/+/806917
11:53:23 bauzas lyarwood: ack, going lunching, but will click to look at it after
12:05:44 gibi lyarwood: +2 on both
12:20:52 stephenfin lyarwood: friendly reminder to ensure you've made any changes necessary to OSC for microversion 2.89
12:21:28 stephenfin s/patch is/patch/
13:02:40 lyarwood stephenfin: https://review.opendev.org/c/openstack/python-openstackclient/+/804377
13:30:19 gibi sean-k-mooney: fyi just got reported from downstream https://bugs.launchpad.net/nova/+bug/1942329
13:33:48 sean-k-mooney gibi: yep this is a know issue
13:34:12 gibi is it an older bug report open for it I should duplicate to?
13:34:17 gibi is there
13:34:43 sean-k-mooney good question tl;dr when drict physical supprot was added they did not add support for any move operations
13:35:28 sean-k-mooney so cold migration resize and shelve are all broken
13:35:45 sean-k-mooney i cant recall if i blocked it for live migration or if that is also affected
13:36:36 sean-k-mooney we have downstream bugs for this https://bugzilla.redhat.com/show_bug.cgi?id=1745842
13:37:49 sean-k-mooney i dont see an upstream one linked so im not sure if we have an upstream bug but we have talked about it at the ptg before i think
13:38:58 gibi thanks
13:41:38 sean-k-mooney ah yes line 420 https://etherpad.opendev.org/p/nova-xena-ptg
13:42:08 opendevreview Merged openstack/nova stable/victoria: Reproducer unit test for bug 1860312 https://review.opendev.org/c/openstack/nova/+/802842
13:42:15 sean-k-mooney no upstream links form ath either altough i did not include the downstreeam one so either but lets use your new one for now
13:44:58 gibi ohh cool, I have a very bad memory
13:45:54 sean-k-mooney this has been on my todo list to fix evenuatlly but it keep getting pushed off. artom started fixing some of the degecases and we have resolved other incidnetally.
13:46:15 sean-k-mooney for example live migration did not wrok because 1 the mac was not updated and 2 detach of PF was not implmented
13:46:29 sean-k-mooney gibi: you fixed detach when you added sriov attach/detach supprot
13:46:37 gibi yepp
13:46:46 gibi and I see artom fixed the unshelve pci_slot case
13:46:51 sean-k-mooney yes
13:47:18 sean-k-mooney so we have been trying to fix the more commens cases first when we get time too work on bugs
13:47:19 gibi I made TODO now on my side to look at the MAC update at some point
13:48:03 sean-k-mooney ack, so it a general problem for all pf move operation including evacuate
13:48:25 sean-k-mooney as you noted we do update the neutron port on vm boot intially its just never done after that
13:48:35 gibi yepp
13:48:40 sean-k-mooney so we need to add the same logic in all the places to update the neutron port mac
13:48:55 sean-k-mooney the problem is that that is not part of multipe port bidnign which makes it annoying
13:49:46 gibi ohh then live migration will be a special case
13:49:48 kashyap gibi: Is it something recent - Zuul requires uBlockOrigin to be disabled?
13:49:59 gibi kashyap: didn't noticed yet
13:49:59 kashyap (And Privacy Badger)
13:50:16 sean-k-mooney yep gibi so if you work on this proably leave live migration till last
13:50:24 gibi sean-k-mooney: ack, good idea
13:50:42 sean-k-mooney we could add a api block noting its not implemented in the interim with a workaround flag to allow operators to renable it
13:51:01 sean-k-mooney its one of the things we disucssed downstream i just never got around to pusshing a patch
13:51:28 gibi it is not utterly broken as we are not leaking resources or breaking the guest, so I would not block the operation
13:51:49 sean-k-mooney well actully it kind of is
13:52:02 sean-k-mooney the vm will migrate but it can cause other vms to fail to boot
13:52:09 gibi why?
13:52:20 sean-k-mooney when we release the PF on the source
13:52:29 kashyap When I opened a Zuul URL to debug, it was asking me to "please try with disabling ad blocker". /me tries. It's iether that, or it's just a stable URL
13:52:34 kashyap s/stable/stale/
13:52:51 sean-k-mooney if another vm in the same network is shcudled to the source node then it will get a mac conflict in neutron when it trys to update the mac
13:53:15 sean-k-mooney gibi: also the vm that was migrate will not get an adress form dhcp proeprly
13:53:17 gibi Ohh so neutron will reject the AMC update
13:53:24 gibi :/
13:53:28 gibi OK then it is broken
13:53:29 sean-k-mooney yep
13:53:31 opendevreview Balazs Gibizer proposed openstack/nova master: [func test] move unshelve test to the proper place https://review.opendev.org/c/openstack/nova/+/793621
13:53:31 opendevreview Balazs Gibizer proposed openstack/nova master: Support interface attach / detach with new resource request format https://review.opendev.org/c/openstack/nova/+/800089
13:53:52 sean-k-mooney so unless you are using static ips the vm that was migrated will be broken too
13:53:58 gibi kashyap: could paste a link you are strugling with?
13:54:09 kashyap gibi: https://zuul.opendev.org/t/openstack/build/a4b92ce40be841eaaf3e97f00c39b4d4
13:54:17 kashyap gibi: It's from June, granted
13:54:21 gibi sean-k-mooney: ahh so the dhcp agent uses the port.mac to provide the ip
13:54:24 kashyap Probably it just got garbage-collected
13:54:37 gibi kashyap: it is already gc-d
13:54:42 gibi kashyap: you need to recheck the patch
13:54:45 kashyap Yep
13:54:53 sean-k-mooney gibi: yes and the port will have the mac of the new PF

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