Wednesday, 2018-10-10

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jandersg'day g'day10:59
oneswigahoy10:59
oneswig#startmeeting scientific-sig10:59
openstackMeeting started Wed Oct 10 10:59:22 2018 UTC and is due to finish in 60 minutes.  The chair is oneswig. Information about MeetBot at http://wiki.debian.org/MeetBot.10:59
openstackUseful Commands: #action #agreed #help #info #idea #link #topic #startvote.10:59
*** openstack changes topic to " (Meeting topic: scientific-sig)"10:59
openstackThe meeting name has been set to 'scientific_sig'10:59
verdurinAfternoon.10:59
oneswigjust about!10:59
oneswig#link Agenda for today https://wiki.openstack.org/wiki/Scientific_SIG#IRC_Meeting_October_10th_201810:59
oneswigHow are things?11:00
martial_Hi Stig and all11:00
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janderswe just entered daylight savings here, b1airo: is it same on your side of the Tasman?11:00
priteauHi everyone11:00
oneswigI think b1airo's off sick today, he mentioned earlier he'd caught a bug from the kids11:01
oneswighi priteau11:01
oneswighi martial_11:01
oneswig#chair martial_11:01
openstackCurrent chairs: martial_ oneswig11:01
jandersthat's one exciting agenda! :)11:01
oneswigIt's somewhat bring-and-share11:01
jandersre b1airo: :(11:01
verdurinHello all11:01
oneswigAt this end, we finally got our BeeGFS role blogged11:02
oneswig#link BeeGFS Ansible role https://www.stackhpc.com/ansible-role-beegfs.html11:02
oneswigThe interest in parallel filesystems last week in the US time zone meeting largely prompted that.11:03
jandersoneswig: supercool!11:03
oneswigjanders: share and enjoy :-)11:03
oneswigAnyone from Sanger here today?11:03
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jandersI have to admit I haven;'t written a line of code for the last three weeks due to a ton of planning activities, however I was just trying to impose software-defined high-performance storage agenda item on our storage team :)11:04
jandersI think I will send them the link and try again :)11:04
oneswighappy to help (hopefully)11:04
jandersfor sure11:04
jandersone can deploy BeeGFS via Bright Cluster Manager...11:05
janders...or with ansible like you guys (and all the cool kids) do!11:05
oneswigBright's pretty good at packaging stuff like that11:05
janders:)11:05
martial_Thanks for the writeup Stig11:05
oneswig(but we do indeed like to do Ansible)11:05
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jandersspeaking of Bright - would integrating Bright and bare-metal OpenStack would be of any interest to you guys?11:06
oneswigI had been hoping we could hear from the Sanger team for an update on their Lustre work https://docs.google.com/presentation/d/1kGRzcdVQX95abei1bDVoRzxyC02i89_m5_sOfp8Aq6o/edit#slide=id.p311:06
oneswigI know some people at Bright but don't have direct use of the product.11:07
jandersI've been asked this question repeatedly over the last few weeks, thinking of reaching out to Bright to have a chat. If it's not only CSIRO asking, it might be easier to get some traction..11:07
oneswigI'm sure others do though?11:07
janderswe're a big Bright shop on the pure-HPC side (and some of our collaborating organisations are, too)11:08
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verdurinWhile I know of some commercial Bright users, I can't think of many academic sites who use it in the UK11:08
oneswigMy understanding of the bright model is that they work with Bright driving OpenStack.  Are you thinking of a reversed situation in which OpenStack drives Bright (like an Ironic driver, for example)?11:10
jandersoneswig: spot on11:10
janders"converting systems into applications"11:10
jandersBright does HPC allright, but I don't see it doing other things that well11:10
jandersIn a bare-metal cloud reality, it seems to be better suited to be a cloud app than a cloud engine11:11
oneswigI've previously come across something along similar lines with an Ironic XCAT driver.  I don't think it ever got the momentum behind it thought to keep it going11:11
jandershowever if it could talk to Nova/Ironic instead of trying to talk to ipmi interfaces on the blades, this could be very different11:11
jandersI don't think additional Ironic drivers are sustainable11:12
jandersI think things like xcat or Bright should have a mode where they hit OpenStack APIs for resources11:12
jandersand give up on bare-metal management entirely11:12
jandersbut - this might be a good topic for a chat in the SIG in Berlin - I don't want to hijack too much of this meeting for this as there are more interesting things on the agenda :)11:13
verdurinjanders: interesting. Would indeed be good to discuss in Berlin.11:13
oneswigLet's do that.  I hope some of the Bright team will come along and you can tell them direct!11:13
jandersI will try to give them notice11:13
jandersand might take this opportunity to invite them along11:14
jandersAmsterdam - Berlin should be a pretty quick bullet train ride I imagine11:14
oneswig+1 to that, be great to have them engaged11:14
janders(the OpenStack - Bright guys are in AMS for sure)11:14
jandersokay, adding this to my TODO11:14
oneswigI've not been driving the meetbot11:15
oneswig#topic parallel filesystems in OpenStack11:15
*** openstack changes topic to "parallel filesystems in OpenStack (Meeting topic: scientific-sig)"11:15
oneswigback on track now :-)11:15
janderssorry.. :)11:15
oneswigSo we've been looking at BeeGFS recently at this end in a couple of projects11:16
jandersthis is super interesting11:16
oneswigIn the back of my mind, I'd like to gather some updates for the SIG book (https://www.openstack.org/assets/science/CrossroadofCloudandHPC.pdf)11:16
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martial_that is a good idea indeed11:17
oneswigand to do a more decent job on that, the coverage of what's used out there would be great.11:17
jandersis there "native" OpenStack-BeeGFS integration, or would you mount BeeGFS where OpenStack is typically looking for storage (/var/lib/{glance, cinder,nova}/images etc..)11:17
oneswigmartial_: what does DMC do for filesystem access?11:17
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oneswigjanders: I'd advise against the latter, it'll be a huge surprise if more than one controller mounts the same share and assumes it is local and has exclusive access...11:18
jandersoops11:19
jandersgood point11:19
oneswigTo date everything we've done is around provisioning filesystems for instances not the infrastructure.11:19
oneswigI know GPFS can do the latter and there was abandoned work by DDN on doing the same for Lustre11:20
jandersare you using RDMA as a transport?11:20
oneswigoh yes11:20
janders(for BeeGFS in instances)11:20
jandersI thought so :)11:20
martial_Ceph so far with NFS for host access, which is why I was so interested in your about BeeGFS to evaluate11:20
martial_("in your post")11:20
oneswigBeeGFS is refreshingly straightforward at getting RDMA working11:20
jandersdo you run it through manila, or do you just present the neutron network that BeeGFS resides in to clients?11:20
jandersoneswig: +111:21
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verdurinoneswig: BeeGFS just providing ephemeral storage in this case?11:21
oneswigjanders: OpenStack's pretty much out of the equation.  Usually we create instances on a network, and then use Ansible to make some into servers and others into clients (or all of them into both)11:21
oneswigverdurin: It's not long-lived storage, in the case we were most recently looking at.11:22
jandersPretty much KISS principle. Very good approach.11:22
oneswigI mean there are many other cases where what's needed is attaching to an existing production filesystem11:22
jandershow do you handle root accounts in the cloud context?11:22
janderstake root off users? use it for clients managed by your team?11:23
oneswigIn the most recent work, the instances are managed (ie users don't get root).  Elsewhere, I've seen a model of filesystem-per-project to ensure users can only destroy their own work11:23
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jandersIn the latter case, is it BeeGFS-OND?11:24
oneswigI think BeeGFS is somewhat behind the authentication options of its rivals (but I may be corrected on that)11:24
oneswigjanders: not in that case.  The filesystem is a "production filesystem" created and managed by site admins.  I mean it could be BeeOND but I don't think it is11:25
jandersoneswig: unfortunately I have to agree. Vendors offering us BeeGFS kit all claimed Kerberos (or any similar functionality) is out of the picture at this point in time11:25
janderswhich sucks big time11:26
janderseither Kerberised BeeGFS (with no OpenStack integration)11:26
jandersor manila-driven BeeGFS-OND11:26
janderswould be nirvana! :)11:26
oneswigAre there other filesystem solutions in use out there?11:26
jandersI actually used GPFS. Not really in anger but in POCs. No issues, "just worked".11:27
jandershowever...11:27
jandersthis was Mitaka11:27
verdurinOwing to our increasing restricted data work, we are increasingly looking at Lustre, having historically used GPFS.11:27
jandersI'm looking at it again now for Queens and see the vendors being slack to keep up with the OpenStack release cycle11:27
oneswigverdurin: will you be retracing the Sanger work on that?11:27
jandersI think Mitaka plugins would work on Queens, but it's a bit of a risk to do it this way11:28
verdurinoneswig: similar, yes. Most of that is upstream now, so it's just a configuration choice.11:28
martial_(going to be AFK for the next few minutes -- school bus)11:28
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jandersis long-range storage of any interest to you guys?11:28
verdurinHoping to discuss it in more detail with DDN on Monday.11:29
oneswigjanders: long range?11:29
janders(as in - mounting a filesystems tens of miliseconds, perhaps a hundred miliseconds away)11:29
oneswigah.  Why yes, possibly.11:29
oneswigIn a different theme.11:29
oneswigBut I'd like to evaluate Ceph for that.  I'm interested in the idea that a CephFS filesystem can have different directories served from different crush rulesets.11:30
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jandersOK. We've got an interesting PoC going. Can't talk details yet, but hopefully it will be finished by Berlin so we can have a chat if you're interested. (it's not Ceph)11:30
oneswigSo you could have /canberra and /bristol - one's local to me, but I can see contents (slowly) of the other11:30
jandersAre you guys doing any large-ish scale data transfer with Pawsey Supercomputing Centre, Western Australia?11:31
janders(the fact that both you and them work on SKA made me wonder)11:31
oneswigjanders: not that I'm aware of.  The SKA's the obvious connection there.  I am sure people do do that kind of stuff with Pawsey but it's a massive project and that's not in our wheelhouse11:32
jandersThe /canberra and /bristol approach is pretty close to what we're testing11:32
oneswigjanders: Your new project - will that be shareable when it's ready to be revealed?11:32
jandersyes, I believe so11:32
martial_janders: and presented as a lighting talk?11:33
jandersit's all NDA for now but I would imagine the vendor would be very keen to have more prospective customers :)11:33
oneswigd11:33
oneswig(I mean...) is it proprietary?11:33
janderswith lightning talk - possibly - just unsure if it would be Berlin or Denver timeframe :)11:33
jandersunfortunately yes, it is (but it is so cool I can tolerate it :)11:34
oneswigSounds very cool.11:34
jandershowever - if there are still lightning talk slots available in Berlin I would be very keen to talk about ephemeral hypervisors running on Ironic11:34
martial_Stig: are we doing the usual lighting talk session ?11:35
jandersI've got that working so no depedency on vendor finishing work11:35
oneswigI think martial_ was thinking of the SIG lightning talks.  These are typically settled on the day (or perhaps the week before)11:35
martial_Same here11:36
jandersI was thinking a SIG lightning talk, too11:36
oneswigmartial_: We've asked for the same format, and IIRC Wednesday morning.  I haven't seen our SIG sessions in the schedule yet.11:36
jandersah, there's SIG-SIG-lightningtalk and Berlin-SIG-lightningtalk11:36
janders:)11:37
oneswigeh?11:37
janderssometimes people do presentations in the #openstack-meeting IRC11:38
jandersplus - in the SIG meetup at Summits there's a lightning talk part11:38
oneswigAh, got it.  This would be in person, in Berlin - the latter11:38
janders(and on top of all that there's the "official" Summit lightning talks)11:38
martial_Janders: you can have both of course11:38
jandersI'd be happy to do both and I think it would actually make sense due to SC and OS Berlin clash11:39
oneswigmartial_: you're heading to SC, correct?11:39
martial_Blair and I are11:39
oneswig#topic SIG meetups11:39
*** openstack changes topic to "SIG meetups (Meeting topic: scientific-sig)"11:39
oneswigsorry just trying to keep the meetbot on track again...11:40
oneswigAh yes, thought so.  Really unfortunate timing.11:40
martial_#link https://sc18.supercomputing.org/presentation/?id=bof113&sess=sess37411:41
martial_So we have a session at SC1811:41
oneswigIf you get the chance while you're there, can you find out if anything's afoot on Kubernetes and MPI (as discussed last week).  I think it's a favourite topic for Christian Kniep.  I'd love to hear if there was a working, scalable implementation11:42
oneswig(and one that wasn't warty as...)11:42
martial_Moving this one a little beyond Openstack alone for this one11:42
martial_But with our usual crowd11:42
martial_I am sure Christian will be happy to discuss things indeed11:43
oneswigNot come across Bob or Jay before - what's their connection?11:43
martial_Bob Killen is a CNCF ambassador for K8s11:44
jandersthis might seem unrelated, but it really isn't:11:44
jandershow long do you guys think the IB vs high-speed Ethernet division will last?11:44
martial_Jay has a similar role at Suse11:44
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oneswigmartial_: get that topic on the agenda then, we need to know!11:45
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oneswigjanders: good question.  For as long as IB makes boat loads of cash for Mellanox I guess?11:45
jandersdo you think we might end up with "EB" at around 400Gbit/s mark?11:45
oneswig(deferring the question)11:46
martial_I am starting that agenda soon so "yes"11:46
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jandersthe goss is that while IB is definitely profitable 100GE & co are making the most $$$11:46
jandersI'm mentioning this cause this might do interesting things to MPI support on technologies as k8s11:47
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oneswigjanders: The tricky piece is that IB is a network in which addressing is managed using interval routes, whereas Ethernet's plug-and-play requires MAC lookups, which costs time and resource.  Inherently, it has a latency disadvantage, but is so much easier to use.11:47
oneswigjanders: it's probably easier to do MPI over IB with Kubernetes, because K8S will know nothing about it and not try to get in the way11:48
oneswigThe major issues are on the placement of nodes and creation of the communicator topology (from my limited understand)11:49
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martial_yes I was going to wonder about affinity11:49
oneswigmartial_: you're up against this panel https://sc18.supercomputing.org/presentation/?id=pan109&sess=sess305 - some speaker firepower there :)11:50
martial_they are a panel we are a BoF but yes it is a busy program (again)11:51
martial_we have a session on cloud federation also ... with other similar ones happening there too11:51
martial_at least they did not ask us to merge this year11:52
oneswigmartial_: got a link?11:52
oneswigFor those that are heading to Berlin, I was wondering if an evening SIG beer might be good?11:52
martial_and I want to keep it "short" presentation wise11:52
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oneswigDoes anyone know what nights are busy at the Berlin summit so we can fit it in?11:52
martial_#link https://sc18.supercomputing.org/presentation/?id=pan106&sess=sess29411:52
martial_Stig: that is that (for now) for SC18 :)11:53
oneswigThanks martial_ - good luck with setting the questions - make 'em sweat :-)11:53
oneswigon Berlin: I haven't checked when the big vendor events are.11:53
jandersquickly coming back to the filesystems thread11:54
oneswig(I'll come back next time with a suggestion)11:54
jandershave you used parallel filesystems running in instances much?11:54
oneswigIn bare metal, yes.11:55
oneswigOtherwise no.11:55
jandersI used to run "hyperconverged" like this, with a dual-core BeeGFS VM and 14 core compute VM on each compute node11:55
janderswith SRIOV/IB it was a killer back in the day11:55
oneswigjanders: interesting.  How was the VM overhead for the MDS and OSS?11:55
jandersno one complained11:56
jandershowever that was a very HPC heavy system11:56
janderswith CPU-passthru, no overcommit, node-local SSD/NVMe and fair bit of RAM11:56
janderswe were maxing out SSDs on the BeeGFSes and maxing out FDR on the consumers11:57
oneswigSounds like a machine that would do it justice11:57
oneswigHow were you automating it?11:57
jandersit was a cool little tool (and if I were doing it today I would use your ansible role instead of dodgy shell scripts, but this project was around 2015)11:57
jandersbash :(11:58
jandersquick and dirty, worked well though11:58
jandersI think we baked-in BeeGFS rpms in the images to make it "quicker"11:58
oneswigSometimes, quick and dirty is all that's required :-)11:58
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oneswigWe are nearly out of time.11:58
oneswig#topic AOB11:58
*** openstack changes topic to "AOB (Meeting topic: scientific-sig)"11:58
oneswigAOB?11:58
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oneswigPlenty covered in the course of discussion I guess11:59
martial_not much here, thanks for a little deeper dive into BeeGFS11:59
martial_janders:11:59
janderswould there be value in me talking about nova-compute on Ironic here?11:59
jandersIf so, what would be a good date?11:59
martial_look forward to your update11:59
martial_please do11:59
oneswigjanders: you pick, don't think we have anything booked in currentkly11:59
janders24 Oct?12:00
jandersthat will give me some time to prepare12:00
oneswigLGTM12:00
oneswigOK we are at the hour, better close the meeting12:00
oneswigThanks all12:00
oneswig#endmeeting12:00
*** openstack changes topic to "OpenStack Meetings || https://wiki.openstack.org/wiki/Meetings/"12:00
openstackMeeting ended Wed Oct 10 12:00:24 2018 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)12:00
openstackMinutes:        http://eavesdrop.openstack.org/meetings/scientific_sig/2018/scientific_sig.2018-10-10-10.59.html12:00
openstackMinutes (text): http://eavesdrop.openstack.org/meetings/scientific_sig/2018/scientific_sig.2018-10-10-10.59.txt12:00
martial_"thumbs up" emoji :)12:00
openstackLog:            http://eavesdrop.openstack.org/meetings/scientific_sig/2018/scientific_sig.2018-10-10-10.59.log.html12:00
verdurinThanks and bye.12:00
oneswigUntil next time12:00
jandersthanks, see you all12:01
oneswigjanders: you're already pencilled in on the wiki :-) https://wiki.openstack.org/wiki/Scientific_SIG#IRC_Meeting_October_24th_201812:02
oneswigok gotta go12:02
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jungleboyj#startmeeting Cinder16:00
openstackMeeting started Wed Oct 10 16:00:26 2018 UTC and is due to finish in 60 minutes.  The chair is jungleboyj. Information about MeetBot at http://wiki.debian.org/MeetBot.16:00
openstackUseful Commands: #action #agreed #help #info #idea #link #topic #startvote.16:00
*** openstack changes topic to " (Meeting topic: Cinder)"16:00
openstackThe meeting name has been set to 'cinder'16:00
whoami-rajatHi16:00
smcginniso/16:00
jungleboyj@!16:00
_pewp_jungleboyj |。・ω・|ノ16:00
xyanghi16:00
yikuno/16:00
LiangFanghi16:01
e0nehi16:01
gansohello16:01
walshh_hi16:01
jungleboyjGive people a minute to join up.16:01
tpsilvahello16:01
rosmaitao/16:01
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jungleboyjHope no one is in Florida.16:02
jungleboyjOk.  Lets get started.16:03
tbarronhi16:03
jungleboyj#topic announcements16:03
*** openstack changes topic to "announcements (Meeting topic: Cinder)"16:03
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jungleboyjI didn't get any concerns with adding Gorka as a stable core.  So, we will be doing that.16:03
jungleboyjThank you to all of you that had input.16:04
e0negeguileo_PTO: my congratulations!16:04
LiangFangcongratulation!16:04
jungleboyjgeguileo_PTO:  Thank you for continuing to help out!16:04
enriquetasoCongratulations!16:04
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jungleboyjenriquetaso:  Hey!  Thanks for joining!16:05
enriquetasoHi jungleboyj ! how are u?16:05
jungleboyjAlso, just a friendly reminder to put any topics you have for the mid-cycle into the etherpad.16:05
jungleboyj#link https://etherpad.openstack.org/p/cinder-stein-mid-cycle-planning16:06
jungleboyjenriquetaso: Good.  Thank you.16:06
smcginnisLooking ahead, walshh_'s topic might be a good one fore midcycle.16:06
LiangFangyes, vmware support this16:07
jungleboyjsmcginnis:  ++16:07
jungleboyjI have been putting topics in there as well.16:07
jungleboyjSome other topics.16:08
jungleboyjPeople should have seen that I did os-brick releases for the current and stable releases.16:08
jungleboyjI also did a python-cinderclient release.16:09
jungleboyjHopefully no one has seen issues there.16:10
smcginnisNothing so far.16:10
jungleboyjGood.16:10
jungleboyjOk.  I think that was all I had for announcements.16:11
jungleboyj#topic Add volume re-image API16:11
*** openstack changes topic to "Add volume re-image API (Meeting topic: Cinder)"16:11
jungleboyjyikun:16:12
yikunhttps://review.openstack.org/#/c/605317/16:12
yikun^^ yes, it’s the re-image spec, now ready for review, and you could take a look when you have time.16:12
yikunhttps://review.openstack.org/#/c/606346/16:12
yikunAlso, there is a POC implementation on ^, now the core implementation is ok. you could also take a look if you are interested.16:12
jungleboyj#link https://review.openstack.org/#/c/605317/16:12
jungleboyj#link https://review.openstack.org/#/c/606346/16:12
jungleboyjThat is great that we have PoC together already.16:14
yikun:), and also have some discussion on "force" parameter16:14
yikun#link http://lists.openstack.org/pipermail/openstack-dev/2018-October/135509.html16:14
jungleboyjyikun:  Yes.  I feel like we have landed on the answer there unless there were more concerns raised since?16:15
yikunyes, maybe "ignore_attached" is the answer if don't have other disagreement. :)16:16
enriquetaso.16:16
jungleboyjyikun:  Trying to catch up here.16:16
yikunanyway, if you have any question or suggestion, feel free to leave the comments in spec. : ), thanks16:18
jungleboyjyikun:  Where did the ignore_attached come from?16:18
jungleboyjI didn't see that on the mailing list.16:18
yikunhere, https://review.openstack.org/#/c/605317/6/specs/stein/add-volume-re-image-api.rst@5216:18
yikunsuggestion from mriedem.16:18
jungleboyjyikun:  Ah, ok.  That makes more sense.16:19
jungleboyjOk, I need to read through that spec.16:19
smcginnisPersonally I preferred "force", but I can see where the concern on that name comes from.16:19
yikunOK, thanks. :)16:19
jungleboyjSo, team, please look at the patch and spec and make comments.16:19
jungleboyj#action Cinder Team to review the Spec and Patch.16:19
jungleboyjThink we can move to the next topic yikun ?16:20
yikunyep, sure~16:20
jungleboyjOk.  Good.16:20
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jungleboyj#topic Support for Revert to any Snapshot16:21
*** openstack changes topic to "Support for Revert to any Snapshot (Meeting topic: Cinder)"16:21
jungleboyj#link https://blueprints.launchpad.net/cinder/+spec/support-revert-to-any-snapshot16:21
jungleboyjwalshh_:16:21
jungleboyjAll yours.16:22
walshh_just wondering if this is going to be implemented in the future?16:22
e0nehow many backends except ceph support this feature?16:22
walshh_I can only speak for VMAX, it does support it16:23
smcginnisI think a lot support it, but we still have the concern from Barcelona that prompted the current design that some backends "lose" later snapshots once they've gone to earlier ones.16:23
jungleboyjAnyone else know of backends that support it?16:23
e0neIMO, it could be useful if more backends supports this. I don't like features only for 2-3 backends16:24
smcginnisI don't think the issue was support for doing it, it was the very high potential for data loss.16:24
e0nesmcginnis: good poit16:24
e0ne*point16:24
jungleboyjsmcginnis:  I am remembering that now.16:25
jungleboyjWe would have to have a safe way to implement this for everyone.16:25
e0ne+116:25
jungleboyjwalshh_:  Is this something that your team would potentially implement?16:26
walshh_we can certainly look into it, wouldnt mind the challenge16:26
jungleboyjThis one would definitely require a spec.16:27
jungleboyjIt would be one of those functions that drivers would have to opt-in for to ensure that they can verify that data loss won't happen.16:27
smcginnisDo we really want to introduce something like that?16:28
walshh_is the data loss risk not also there for revert to last snapshot?16:28
jungleboyjsmcginnis:  Not really.  We have kind of stabilized things away from those types of features.16:29
smcginnisNo, the data loss risk is in losing snapshots, not in the delta of data between now and when the snapshot was taken.16:29
smcginnisAnd how Cinder can know if that's the case and accurately reflect that in our database.16:29
walshh_ok, thanks16:30
smcginnis"Let's go back 5 snaps. Oops, that was too far, let's go 4. Where'd my snap go?" - that kinda thing.16:30
jungleboyjIs that a limitation in Cinder or in the way that the backends handle the snaps?16:31
smcginnisThe backends.16:31
jungleboyjOk.  That is concerning.16:32
smcginnisI think someone had a specific example of a backend that behaves that way at the design summit, but I don't recall which it was.16:32
smcginnisWe can try to get input if that is still the case. Especially since there are now less backends than before.16:33
jungleboyjSo, two approaches.  We can say 'No'.  Or we can make people aware that there has been a request here and then  talk about it at the Mid-Cycle.16:33
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jungleboyjsmcginnis:  ++16:33
jungleboyjSo that would be a vote for option two.16:34
jungleboyjAny other votes?16:34
walshh_+116:35
jungleboyje0ne:  ?16:35
rosmaitamidcycle option sounds good to me16:35
jungleboyjwalshh_:  Your team can join remotely for the mid-cycle?16:35
jungleboyjWe will be a little closer to your timezone.16:35
walshh_yes, we hope to16:36
jungleboyjOk.  Lets do that.16:36
e0neIt would be good to have more feedback from driver maintainers.16:36
jungleboyje0ne:  Agreed.16:36
jungleboyjSo, walshh_  can you add this to the etherpad for the mid-cycle and also send a note about it to the mailing list?16:37
walshh_sure16:37
jungleboyjwalshh_:  Great.16:38
jungleboyj#action walshh_  to add topic of reverting to any snapshot to mid-cycle etherpad.16:38
jungleboyj#action walshh_  to send note to the mailing list about this in hopes of getting attention from other driver maintainers.16:38
jungleboyjwalshh_:  You ok with moving on?16:39
walshh_yes, I am...thanks16:39
jungleboyjwalshh_:  Thanks.16:39
jungleboyj#topic bug on migration of attached volumes.16:40
*** openstack changes topic to "bug on migration of attached volumes. (Meeting topic: Cinder)"16:40
jungleboyjtpsilva: Your floor.16:40
tpsilvaokay, thanks16:40
tpsilvaso I came across this last week... when testing migration I noticed a rather weird behavior and would like to confirm if we have an issue on cinder or nova16:41
e0nesorry, need to disconnect now. see you next week16:41
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tpsilvamigrating a detached volume works fine, but the migration of an attached volume does not seem to finish, ever16:41
jungleboyjtpsilva:  Ok.16:41
smcginnisThanks e016:42
tpsilvacinder calls nova, nova creates the new volume, moves the data, attaches it to the instance and then it should call back cinder to delete the volume16:42
tpsilvabut the old volume never gets deleted16:42
jungleboyjtpsilva:  Ok.16:42
tpsilvaI can see the call on nova code, nothing's apparently wrong there16:42
whoami-rajattpsilva: can you share the bug link? would be helpful.16:42
jungleboyjThat functionality is quite new so wouldn't be surprised if there are issues.16:43
tpsilvajungleboyj: oh, is it?16:43
tpsilvaon both sides? nova and cinder?16:43
jungleboyjI thought it was relatively new.16:43
jungleboyjMaybe I am thinking of attached extend though.16:43
tpsilvawhoami-rajat: didn't create it... I didn't know how it should work or if it's indeed a bug, so I wanted to confirm it first16:43
gansojungleboyj: I remember seeing it in Queens, and the same bug exists in Queens and master, so it appears it hasn't been thoroughly tested16:44
tpsilvamaybe there are some issues with the status of the old volume, or the migration_status that prevents it from being deleted16:44
tpsilvabut I didn't dig too deep trying to debug it16:44
jungleboyjganso:  Do you know of a bug for it?16:44
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tpsilvajungleboyj: we tested it on queens, rocky and master16:45
gansojungleboyj: I haven't seen one logged16:45
tpsilvaso I'll log the bug then16:45
jungleboyjtpsilva:  Yes, I think that is what needs to be done.16:45
tpsilvaalright16:46
jungleboyjIf you have specific steps for recreating that would be helpful.16:46
jungleboyjtpsilva: Which backend are you using?16:46
tpsilvatested on NetApp and LVM16:46
tpsilvaah, interesting part that I forgot16:46
jungleboyjSame result either way?16:46
tpsilvajungleboyj: yep16:46
tpsilvabut, retyping works fine, which is odd16:46
jungleboyjtpsilva:  That isn't totally surprising.16:47
jungleboyjWas it a retype without migration?16:47
tpsilvawith migration16:47
gansoand attached16:47
tpsilvayep16:47
jungleboyjNow, that is interesting.16:47
tpsilvaalright, I'm creating the LP bug16:48
jungleboyjSo, there must be something little in the last step that is lost with migration only.16:49
smcginnisThere have been changes on the nova side for the new attach flow and multiattach. Maybe something got missed there.16:49
jungleboyj#action tpsilva to open an LP bug.16:49
jungleboyjtpsilva: Can you add the bug you open into the notes from the meeting please?16:50
tpsilvawill do16:50
jungleboyjtpsilva:  Thank you.16:51
jungleboyjAppreciate you bringing this up as well.16:51
tpsilvajungleboyj: thanks16:51
jungleboyjtpsilva: That was quick.  Thanks.16:52
jungleboyjOk.  So that covers that part of the agenda.16:52
jungleboyj#topic Bug Triage16:53
*** openstack changes topic to "Bug Triage (Meeting topic: Cinder)"16:53
jungleboyjwhoami-rajat:  Any updates on the bugs in the list?16:53
jungleboyjWe have a few minutes left.16:54
jungleboyjOr if anyone has other topics.16:54
* lbragstad has something policy related but will wait if needed16:54
jungleboyjlbragstad:  You win.  Please go.16:54
lbragstadfirst - thanks for the reviews on https://review.openstack.org/#/c/602489/16:54
whoami-rajatgeguileo_PTO: isn't available since the past 1 week. so no updates. also no updates on other bugs too.16:54
jungleboyjwhoami-rajat:  Ok.  Thanks.16:55
lbragstad^ that's essentially a template for what we were talking about on Thursday at the PTG about having safer ways to upgrade policies without regression16:55
lbragstadi wanted to prove that the tests actually work when changing the policy - which is what https://review.openstack.org/#/c/604115/1 does16:56
lbragstadand that's when i noticed https://review.openstack.org/#/c/604115/1/cinder/tests/unit/policy.json16:56
jungleboyj#link https://review.openstack.org/#/c/602489/16:57
lbragstadi can pull that out into it's own cinder change if folks thinks its useful16:57
jungleboyj#link https://review.openstack.org/#/c/604115/116:57
jungleboyjlbragstad:  Oh.  That is good.16:57
smcginnislbragstad: You mean get rid of the unit test policy file?16:57
lbragstadideally - the more changes like #link https://review.openstack.org/#/c/602489/4 land the more policies can be removed from #link https://review.openstack.org/#/c/604115/116:57
lbragstadcorrect16:58
jungleboyjlbragstad:  That probably should have been done back when we moved policies in code.16:58
jungleboyjsmcginnis:  Right?16:58
lbragstadsince 1.) you have defaults in code and 2.) the defaults are being tested16:58
smcginnislbragstad: That would be great!16:58
jungleboyjsmcginnis:  ++16:58
lbragstadit's cool that it wasn't16:58
lbragstadall of of this is a lot of work, so small, iterative changes are nice16:59
jungleboyjlbragstad:  ++16:59
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jungleboyjBite size changes that we can try to digest are good.16:59
lbragstadbut i can propose the removal of that policy from the testing policy file16:59
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jungleboyjYeah, lets start removing those overrides that we can.  I think that is good.17:00
lbragstadotherwise https://review.openstack.org/#/c/604115/1/cinder/policies/volumes.py should show how those tests protect your API17:00
jungleboyjlbragstad:  Thank you for the work you are doing there!17:00
lbragstadyep - anytime.. let me know if you have questions17:00
jungleboyjlbragstad: Will do.17:00
lbragstador if anyone starts porting other tests and wants eyes on it17:00
jungleboyjOk.  We are at the top of the hour and need to wrap up.17:00
jungleboyjThank you everyone for meeting!17:01
jungleboyj#endmeeting17:01
*** openstack changes topic to "OpenStack Meetings || https://wiki.openstack.org/wiki/Meetings/"17:01
openstackMeeting ended Wed Oct 10 17:01:07 2018 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)17:01
openstackMinutes:        http://eavesdrop.openstack.org/meetings/cinder/2018/cinder.2018-10-10-16.00.html17:01
openstackMinutes (text): http://eavesdrop.openstack.org/meetings/cinder/2018/cinder.2018-10-10-16.00.txt17:01
openstackLog:            http://eavesdrop.openstack.org/meetings/cinder/2018/cinder.2018-10-10-16.00.log.html17:01
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fungiif people were looking for a storyboard meeting this week, i think it's probably cancelled19:11
fungibut feel free to review the wip spec for a story attachments implementation: https://review.openstack.org/60737719:11
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notmynameswift team meeting time21:00
notmyname#startmeeting swift21:00
openstackMeeting started Wed Oct 10 21:00:20 2018 UTC and is due to finish in 60 minutes.  The chair is notmyname. Information about MeetBot at http://wiki.debian.org/MeetBot.21:00
openstackUseful Commands: #action #agreed #help #info #idea #link #topic #startvote.21:00
*** openstack changes topic to " (Meeting topic: swift)"21:00
openstackThe meeting name has been set to 'swift'21:00
notmynamewho's here for the swift team meeting21:00
timburkeo/21:00
m_kazuhiroo/21:00
kota_hello21:00
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rledisezhi o/21:00
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mattoliverauo/21:01
notmynamewelcome21:01
notmynameI myself just got off a plane. had a customer meeting this week, so I'm a bit tired. I vote we have a short meeting :-)21:01
notmyname#link https://wiki.openstack.org/wiki/Meetings/Swift21:01
notmynamethe agenda doesn't look like anything specific has been added, so let's do like we did last week with a quick overview of what's going on21:02
mattoliverauKk21:02
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notmynamepriority reviews page still looks accurate. nothing's been added, nothing's been merged21:02
notmyname#link https://wiki.openstack.org/wiki/Swift/PriorityReviews21:02
notmynamestill looks like there's some waiting for patch authors. I didn't see any obvious waiting on reviewers there21:03
notmynameoh, maybe the account undelete patch wanted some clarity from you mattoliverau on your review21:03
mattoliverauYeah,  im part way throigh a review there21:04
notmynamecool, thanks21:04
notmynamem_kazuhiro: any updates on the general task queue work this week?21:04
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m_kazuhiromattoliverau added some reviews and I updated patch for them.21:04
mattoliverauNice21:05
kota_nice21:05
notmynamethat's great21:05
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mattoliverauIm working on a follow patch to clean up the exirer docs a bit21:05
notmynamecool21:05
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notmynamerledisez: anything to share on LOSF this week?21:06
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rlediseznotmyname: nothing specific, we've been working on improving performance of SSYNC over LOSF, it's going fine for now21:07
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notmynamerledisez: interesting21:07
notmynamethat makes me think about what we want to do long-term with ssync anyway21:07
rlediseznotmyname: we are thinking of that too :)21:08
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notmynameor rather, does it make sense to improve ssync for lsof or just actually get started on tsync?21:08
notmynamerledisez: *please* share your thoughts on the matter. either on the ideas wiki page or in irc or email or something. don't let it stay in ovh :-)21:09
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rlediseznotmyname: I know alecuyer would like to dev something else, my opinion is that now ssync is getting stable, i would prefer to improve it instead of starting again something new and with new bugs21:09
rledisezso, for now we are profiling ssync21:09
notmynamewe at swiftstack have started talking about what big swift thing we need to prioritize next. so (among other things) we've been talking about tsync vs losf. both are good, but it makes more sense to work together than separately21:10
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kota_sounds reasonable story21:11
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rledisezsure21:11
mattoliverau+100 for together in community :)21:11
notmyname:-)21:11
rledisezwe won't start a tsync dev without any discussion21:11
notmynamegood:-)21:11
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notmynametimburke: anything to share on s3 patches? just the stuff on the reviews page?21:12
notmynametimburke: and thanks for continuing to clean up the gate jobs. the coverage change you proposed seems reasonable21:13
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notmynamehmm... I think timburke may have said hi and then sneaked out!21:14
mattoliverauLol21:14
kota_lol21:14
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notmynameanything else from anyone? anything you want to bring up or questions or help you need?21:14
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notmynameok, I'll take that as "no"21:15
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notmynamethank you very much for your work on swift21:16
notmynameand thansk for coming today21:16
notmyname#endmeeting21:16
*** openstack changes topic to "OpenStack Meetings || https://wiki.openstack.org/wiki/Meetings/"21:16
openstackMeeting ended Wed Oct 10 21:16:19 2018 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)21:16
openstackMinutes:        http://eavesdrop.openstack.org/meetings/swift/2018/swift.2018-10-10-21.00.html21:16
openstackMinutes (text): http://eavesdrop.openstack.org/meetings/swift/2018/swift.2018-10-10-21.00.txt21:16
openstackLog:            http://eavesdrop.openstack.org/meetings/swift/2018/swift.2018-10-10-21.00.log.html21:16
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timburkeshhh... *totally* still paying attention :P21:19
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