Earlier  
Later
New Search
Posted Nick Remark
#openstack-nova - 2019-11-08
16:05:21 dansmith I believe I called that as abandonware before we merged :)
16:05:47 mriedem efried: i can do it in there, it just means rebasing and pushing the other 3 changes on top as well
16:05:57 mriedem which likely means i'll be doing rechecks
16:06:01 efried oh
16:06:10 efried then I guess fup it
16:06:24 efried unless it waits too long to get another +2
16:06:50 mriedem yeah if i have to resolve a merge conflict obviously i'd fix there, but i'll fup for now
16:07:04 mriedem dansmith: you just still have s390x ptsd from your early days
16:07:27 mriedem remember, they were doing virtualization since before it was hip
16:07:43 dansmith no, I have ptsd from all of ibm's drivers
16:07:46 melwitt mriedem: we had to ask them to enable ssh validation bc otherwise their config drive stuff could not be tested
16:07:54 mriedem melwitt: ah that's right
16:08:18 mriedem the powervm driver in tree can at least do some things, but i haven't seen ci working for it in years
16:09:13 mriedem looks like maintenance of the out of tree driver has basically been farmed out https://github.com/openstack/nova-powervm/commits/master
16:14:21 openstackgerrit Merged openstack/nova master: Replace time.sleep(10) with service forced_down in tests https://review.opendev.org/692252
16:16:50 openstackgerrit Matt Riedemann proposed openstack/nova master: FUP for Ib62ac0b692eb92a2ed364ec9f486ded05def39ad https://review.opendev.org/693556
16:20:50 openstackgerrit Lee Yarwood proposed openstack/nova master: compute: Use long_rpc_timeout in reserve_block_device_name https://review.opendev.org/693537
16:22:06 openstackgerrit Matt Riedemann proposed openstack/nova master: Convert nova-live-migration job to zuulv3 https://review.opendev.org/693364
16:39:38 openstackgerrit Matt Riedemann proposed openstack/nova master: Remove service_uuids_online_data_migration https://review.opendev.org/693421
16:51:53 sean-k-mooney mriedem: i filed https://bugzilla.redhat.com/show_bug.cgi?id=1761864 to track adding support for it at somepoint but its in our backlog and not prioritised yet.
16:51:53 openstack bugzilla.redhat.com bug 1761864 in openstack-nova "[RFE] Preemtable Instances" [High,New] - Assigned to smooney
16:52:12 sean-k-mooney actully that should not have an assignee
16:53:02 sean-k-mooney dansmith: bcache is pretty stable
16:53:09 sean-k-mooney dansmith: i have been using it for years
16:53:26 dansmith sean-k-mooney: didn't say it wasn't
16:54:24 sean-k-mooney true
16:54:33 sean-k-mooney vs dm-cache i found bcache more flexible
16:54:39 dansmith yup
16:55:10 sean-k-mooney dm-cache also has a longer warmup time but when both caches are hot they perform about the same
16:55:35 sean-k-mooney the bcache dev has moved on to make a bcache file system.
16:56:26 sean-k-mooney bcache is still mainatined upstream in the kernel but they change there focus because tehy though it was feature complete
16:56:55 sean-k-mooney https://bcachefs.org/
16:57:19 sean-k-mooney i would not really use ^ if you like your data yet
16:58:41 sean-k-mooney dansmith: what was the context for the bcache disucssion?
16:58:59 sean-k-mooney is someone asking us to use it to cache remote volumes?
16:59:01 dansmith sean-k-mooney: the spec proposed for volume caching
16:59:46 sean-k-mooney ah that might work for isci volumes
16:59:58 sean-k-mooney we mount those via the kernel right?
17:00:10 sean-k-mooney rather then natively in qemu
17:00:24 dansmith it won't, IMHO, because bcache requires the volumes to be a special format, AFAICT
17:00:30 dansmith which is in the backscroll and the comments on that spec
17:01:19 sean-k-mooney oh right so it did not requrie that orginally
17:01:43 sean-k-mooney but the current version i think require teh backing volume to be converted
17:01:49 dansmith their pre-merge docs all talk about it, so it's been that way for quite a while
17:01:53 dansmith but..yeah
17:02:17 sean-k-mooney well when i first used bcache a few years ago they allowed you to cache an existing volume
17:02:31 sean-k-mooney but they remove that as it lead to data curruption in some cases i think
17:03:14 sean-k-mooney the idea of having fast local storage cache network volumes does have merrit but ya its hard to get right
17:04:09 sean-k-mooney this spec right https://review.opendev.org/#/c/689070/2/specs/ussuri/approved/support-volume-local-cache.rst
17:05:00 dansmith sean-k-mooney: doesn't work for multi-attach, or rbd, or the future where we use qemu-integrated iscsi, and can be done inside the guest with local ssd ephemeral disks
17:05:10 dansmith but yes, I understand caching and why it's desirable
17:05:20 dansmith yes, that's the spec
17:05:20 sean-k-mooney ya just looking at the spec now
17:05:47 sean-k-mooney a better way to arrpoch this woudl be to add a feature to qemu/libvirt
17:06:05 sean-k-mooney so that we could tell qemu to use a device as a cache for another
17:08:18 dansmith sean-k-mooney: yep, but the spec is actually "sell moar intel SSDs through new feature for obscure brand new opensource caching project"
17:09:46 sean-k-mooney funnaily enough i just baught one of those ssds to use a a bcache device in front of the raid5 i use for my cinder lvm backend
17:10:25 mriedem hardware nerd alert
17:11:22 sean-k-mooney hehe it helps hide that my vms are on spinning rust and with random io but its not ssd speed by any means
17:11:44 mriedem you mean you haven't gone plaid yet?
17:12:27 sean-k-mooney plaid ? as in the shirt matail or intels 3d cross point
17:12:33 sean-k-mooney aka optane
17:12:33 mriedem as in spaceballs
17:12:38 mriedem https://www.youtube.com/watch?v=mk7VWcuVOf0
17:14:47 sean-k-mooney ha i should really watch that sometime
17:15:45 mriedem "emergency stop - never use"
17:15:46 mriedem classic
17:15:48 mriedem it's like software
17:58:03 mriedem gate bug fun https://bugs.launchpad.net/nova/+bug/1851871
17:58:03 openstack Launchpad bug 1851871 in OpenStack Compute (nova) "Functional tests intermittently fail with "TypeError: Can't upgrade a READER transaction to a WRITER mid-transaction" during service destroy" [Undecided,New]
21:16:13 openstackgerrit Merged openstack/nova master: Use admin neutron client to see if instance has qos ports https://review.opendev.org/691900
22:29:28 efried okay, where do I get a VM image I can actually do something with?
22:29:44 efried like run python
22:42:28 efried jroll: I'm off PoCing vTPM and am at the point where it would be nice to be able to run $test_program that uses one so I can tell if it's "working". Before I go trying to hack something together (and wind up not even knowing whether it's doing what it's supposed to) do you (or could you obtain/create) something easy?
22:42:38 efried The "hello world" of tpm
#openstack-nova - 2019-11-09
15:08:08 openstackgerrit Matt Riedemann proposed openstack/nova master: WIP: Convert nova-live-migration job to zuulv3 https://review.opendev.org/693364
#openstack-nova - 2019-11-10
14:29:29 openstackgerrit Matt Riedemann proposed openstack/nova master: Remove TODOs around claim_resources_on_destination https://review.opendev.org/693635
14:31:45 openstackgerrit Matt Riedemann proposed openstack/nova master: Remove TODOs around claim_resources_on_destination https://review.opendev.org/693635
14:43:51 openstackgerrit Matt Riedemann proposed openstack/nova master: Resolve TODO in _remove_host_allocations https://review.opendev.org/693636
15:47:46 openstackgerrit Brin Zhang proposed openstack/nova-specs master: Add flavor extra specs group https://review.opendev.org/663563
19:29:27 openstackgerrit Matt Riedemann proposed openstack/nova master: Remove TODOs around claim_resources_on_destination https://review.opendev.org/693635
21:15:34 openstackgerrit Matt Riedemann proposed openstack/nova master: Fix driver tests on Windows https://review.opendev.org/518525
#openstack-nova - 2019-11-11
05:30:19 openstackgerrit Takashi NATSUME proposed openstack/nova master: Update keypairs in saving an instance object https://review.opendev.org/683043
06:58:52 openstackgerrit Brin Zhang proposed openstack/nova master: libvirt:driver:Disallow AIO=native when 'O_DIRECT' is not available https://review.opendev.org/682772
07:36:01 openstackgerrit ya.wang proposed openstack/nova-specs master: Add spec for live migration no performance impact. https://review.opendev.org/693655
07:38:48 danil hello folks. Please help me. Is there a way to get nova client through openstacksdk? I mean that I can not just use novaclient library due to dependencies. Thanks
09:46:28 danil hello folks. Please help me. Is there a way to get nova client through openstacksdk? I mean that I can not just use novaclient library due to dependencies. Thanks
12:47:00 brinzhang dansmith: efried: In nova PTG in Shanghai we talked about this spec https://review.opendev.org/#/c/663563/, and we reached the agreement on this feature, you can see ML/Etherpad https://etherpad.openstack.org/p/nova-shanghai-ptg http://lists.openstack.org/pipermail/openstack-discuss/2019-November/010643.html
12:47:22 jroll efried: I don't have anything, may be able to get something but not sure it'll be simple :) this might be a reasonable starting point: https://github.com/tpm2-software/tpm2-tools/wiki/Getting-Started
12:47:44 jroll efried: if you don't like the looks of that, I can bug an expert here
12:48:00 brinzhang dansmith: efried: I was updated (re-write) this spec, please review again (there are -2 on it now)
13:38:39 openstackgerrit Matt Riedemann proposed openstack/nova master: Remove TODO from ComputeTaskManager._live_migrate https://review.opendev.org/693696
14:01:48 Erdosip Hy!
14:03:48 Erdosip I would like to investigate about CEPH multiple pool support in the same nova process.. AFAIK this is not supported now, since nova only able to use one RBD, but we would like to use multiple... Are there any technical problems with this, to implement?
14:04:43 Erdosip I would like to investigate about CEPH multiple pool support in the same nova process.. AFAIK this is not supported now, since nova only able to use one RBD pool, but we would like to use multiple... Are there any technical problems with this, to implement?
14:05:57 Erdosip (sorry, i thinked, i can edit my previous message...)
14:23:51 mriedem Erdosip: this is likely a better question for the openstack-discuss mailing list, tag the subject line with [nova] so it's filtered properly
14:24:11 Erdosip okay, thanks!
14:29:10 sean-k-mooney Erdosip: the only way to connect to multiple cephs form the same nova host today is via cinder today as far as i know
14:30:00 sean-k-mooney i dont know what it would take to support it with the rbd image backend but as mriedem says if you ask on the mailing list someone more familar with that may respond

Earlier   Later