Tuesday, 2021-05-25

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yasufumhi tacker team08:00
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uehaHi08:01
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yasufum#startmeeting tacker08:05
openstackMeeting started Tue May 25 08:05:05 2021 UTC and is due to finish in 60 minutes.  The chair is yasufum. Information about MeetBot at http://wiki.debian.org/MeetBot.08:05
openstackUseful Commands: #action #agreed #help #info #idea #link #topic #startvote.08:05
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openstackThe meeting name has been set to 'tacker'08:05
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yasufumlink: https://etherpad.opendev.org/p/tacker-meeting08:07
yasufumI have one topic today about freenode discussed on ML recently.08:09
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uehaI have one topic about devstack patch we discussed last week.08:09
yasufumBut it seems that there is some update on topic from ueha.08:10
yasufumyes08:10
uehaYes, can I go first?08:10
yasufumueha: could you start from your topic?08:10
yasufumsure08:10
uehaThanks!08:10
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uehaAs I was concerned, devstack's patch have been merged today, causing FT errors.08:11
ueha"Change default network backend driver to ML2/OVN": https://review.opendev.org/c/openstack/devstack/+/79143608:11
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uehaI'm trying to solve FT error now, but it seems to be not going well..08:12
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uehaI update and post the following patch:08:12
ueha791252: [DNM] Set ML2 driver to OVS for resolving FT error | https://review.opendev.org/c/openstack/tacker/+/79125208:13
ueha792872: [DNM] Test to use OVN | https://review.opendev.org/c/openstack/tacker/+/79287208:13
uehaI am not very familiar with devstack configuration. if you have any concerns and advices, please comment to gerrit.08:14
yasufumthanks08:16
uehaI'll keep trying it!08:16
uehaThat's all from my side, thanks.08:17
takahashi-tscThank you so much, Hmm, we should disable some services like q-* explicitly?08:17
takahashi-tscThe above is about Using OVS.08:18
takahashi-tscAnyway, I confirm the patch and error.08:18
uehaIn devstack's patch change, "q-svc: true" is still enable.08:19
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takahashi-tscBut I think q-* is needed for using OVS...08:20
uehaYes.. I think maybe so08:21
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uehaand Tacker uses "q-qos",, I'm wondering what to do with this.08:22
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uehaFirst of all in 792872, I'm trying to change the services and configurations just like `.zuul` of the devstack patch.08:24
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takahashi-tscSure, thanks. I'm not sure we need some qos feature or not if we use OVN...08:25
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uehaI think we need to investigate about the configuration for using OVN..08:28
takahashi-tscYes...08:29
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uehafirst, I will give priority to check and fix the patch 791252 so that the FT can pass.08:33
yasufumthank you for both08:33
yasufumoK08:33
yasufumI would like to check devstack08:33
yasufumIs there any comment for the topic?08:34
yasufumgood08:35
uehaIt seems nothing, Thank you.08:35
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yasufumFor the next topic, it is remained about CNF installation with Helm, but seems no updates.08:36
yasufumSo, move on to the next one from me.08:37
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yasufumAs you may know, leaving from freenode has been discussed08:39
yasufumas suggested in http://lists.openstack.org/pipermail/openstack-discuss/2021-May/022468.html08:39
yasufumor http://lists.openstack.org/pipermail/openstack-discuss/2021-May/022539.html08:40
yasufumbecause of takeover of freenode recently08:40
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yasufumSome of teams have asked to leave from freenode soon08:44
yasufumwhile TC is still waiting for making a decision08:44
yasufumWe’ve asked to choose a option for feedback from all OpenStack projects to decide our direction then.08:47
yasufumSo, I would like to here your opinion about that08:47
yasufumI don’t think move away from freenode soon.08:48
takahashi-tscI agree, but I'd like to know others' opinion. Why many projects want to move soon?08:49
uehaI look at the responses of other projects, is the amount of traffic or IRC activity a criterion for judgment?08:50
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yasufumtakahashi-tsc: I don’t know about it so much actually, but I think they dislike such way of takeover, leaving many volunteer stuffs from freenode.08:53
yasufumI also agree to leave from freenode, but think no need to do right now.08:54
takahashi-tscYes, no need right now.08:55
yasufumueha: might be one of the reason08:55
yasufumAnyway, do you have any idea about alternative of freenode?08:56
yasufumIn some responses for the issue on ML, some of them don’t like slack :)08:57
yasufumFor me, IRC is familier way to have such a meeting.08:58
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yasufumBut If you have an idea of other tool, you can suggest it to community08:59
yasufumWhat do you think?09:01
takahashi-tscSorry, I have no idea of other specific tool...09:02
uehaI don't know much about others,, but IRC is relatively easy for me to have a meeting with English.09:03
yasufumOK, thanks09:03
yasufumHere is our opinion, “we are using IRC actively. we agree to move away from freenode, but no need to do right now. So, Option1”09:05
takahashi-tscHmm, almost projects choose Option2 "We want to move away from Freenode right now."09:06
yasufumyes09:06
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yasufumThe decision of communy might be going to Option2.09:07
takahashi-tscYes, i think so.09:07
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yasufumAnyway, I would like to share our opinion is option1 on the community’s etherpad, if you still agree to option109:11
yasufumany comment?09:12
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takahashi-tscSure. Option1 is OK.09:12
yasufumThanks09:12
ueha+109:12
yasufumIf you don’t have any other topics, I would like to close this meeting.09:12
takahashi-tscNot from my side09:13
yasufumOK09:13
yasufumThanks for joining, bye!09:13
takahashi-tscthanks bye09:13
uehaThank you, bye09:14
yasufum#endmeeting09:14
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openstackMeeting ended Tue May 25 09:14:05 2021 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)09:14
openstackMinutes:        http://eavesdrop.openstack.org/meetings/tacker/2021/tacker.2021-05-25-08.05.html09:14
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openstackLog:            http://eavesdrop.openstack.org/meetings/tacker/2021/tacker.2021-05-25-08.05.log.html09:14
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ricolinDear all, as we got nothing more to discuss for multi-arch SIG, we gonna skip second meeting today15:06
ricolinIf you're looking for us, feel free to join #openstack-multi-arch channel15:06
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martialhello friends21:00
julianpHi!21:00
b1airo#startmeeting Scientific-SIG21:00
openstackMeeting started Tue May 25 21:00:50 2021 UTC and is due to finish in 60 minutes.  The chair is b1airo. 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: Scientific-SIG)"21:00
openstackThe meeting name has been set to 'scientific_sig'21:00
martialtime for another exiting Scientific ... what Blair said :)21:00
b1airomorning21:00
b1airoi'm in a work call with Stig at the moment, so we'll be a bit tardy..21:01
martialroger21:02
martialanything new for our HPC friends?21:02
martialI saw Belmiro during the last Open Infra Live21:02
martialhttps://www.youtube.com/watch?v=yf5iFiCg_Tw21:02
martialthe topic was very relevant to our crowd: " Upgrades in Large Scale OpenStack Infrastructure"21:03
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b1airouh oh, time for a Zoom update21:07
b1airo#chair martial21:07
openstackCurrent chairs: b1airo martial21:07
martialnot sure if that is a good sign :)21:08
b1airoI haven't seen Belmiro's talk yet, but based on Tim's Twitter feed I have an idea of the content :-)21:08
martial;)21:08
martialit was good, and the questions relevant21:09
martialanybody else had a chance to view it and/or had comments?21:09
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oneswigg'day21:10
oneswigb1airo: hey21:10
b1airoo/21:11
b1airodeja vu :-)21:11
martialWhat is the status of our plan for ISC ?21:15
oneswigHi martial, didn't spot you there.21:15
oneswigIt's true, there's something going ahead.21:15
martial#chair oneswig21:16
openstackCurrent chairs: b1airo martial oneswig21:16
oneswigI haven't checked what needs to be done but a ticket needs to be organised for one.21:16
martialI got the email a while back but no action since so unclear21:17
oneswigWe had a really good panel of speakers involved too IIRC21:17
oneswigIt's the fatigue with online conferences.21:17
martialsame21:18
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martialwelcome Tim21:19
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oneswigBeen having fun with OVN recently21:20
oneswigin a "actually not fun" sense21:20
* trandles reads "OVN" and starts twitching21:20
oneswigHardware offload of security groups.  It's neat, but requires the latest Mellanox firmware.  Too recent if you bought your NICs from an OEM21:22
oneswigThere's a "seamless" trap to software if you can't offload the flow onto the NIC.  RDMA even works - at a small number of gb/s21:24
oneswigOVS is like nft - one of those hard-to-learn things you only ever have to learn when something's broken.  It doesn't set you up to want to explore it's many treasures.21:25
oneswigOr SELinux perhaps ;-)21:25
martial"treasures" indeed :21:27
oneswigHad another interesting issue today with Slurm automation - setup would mysteriously fail in the playbooks, but work if the steps were repeated manually.  Turns out the systemd service for slurmctld in OpenHPC does not wait for the service to complete startup.  If your config file takes 4s to read and process, other daemons would out-race it and barf on its absence.  Gah.21:30
oneswigEasily fixed if you wait_for it to bind.21:31
trandlesTo be fair, my OVS+OVN+HA (no DVR) deploy of RHOSP went very smoothly and is working well. But it is a lot to grok if you've never dug into this stuff before.21:31
trandlesI had never dug into it before. I was very happy it "just worked" because then I could start playing with things and watching the results to learn WTF is actually going on in there.21:32
b1airosounds like systemd doing its job then oneswig :-o21:33
oneswigOVN does work and is simpler than the OVS Hybrid driver.  It's just the contortions that optimisation puts us through.21:33
trandlesA colleague once gave a summer intern the project to "serialize systemd services." /o\21:34
oneswigtrandles: if you're using it with Ironic you've probably had fun integrating VLANs, metadata and FIPs into OVN together.21:34
trandlesoneswig: not doing that fortunately21:34
oneswigtrandles: is the networking flat for your Ironic deploy?21:36
trandlesyes21:36
oneswigcertainly keeps things simple21:36
b1airoIronically simple...21:37
b1airomartial: regarding ISC - yes, I received a note on that last week that I haven't processed yet. has been near the top of my todo list for last couple of weeks to contact the panel and try to get some conversation going and/or setup a pre-meeting ...21:39
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oneswigI think a pre-meeting is good, although likely hard to schedule.  Even a group email thread would help21:41
trandlesAh, kkillsfirst is here. Welcome to the LANL summer intern who will be working on kexec in Ironic.21:41
oneswigWow!  Hi kkillsfirst, welcome21:41
oneswigGreat project trandles21:41
trandlesthx oneswig21:41
oneswigWill there be a public document at the end of the internship?21:42
oneswigHow can it be summer already?  It hasn't stopped raining for weeks.21:42
kkillsfirstHello, Glad to be here helping.21:43
trandlesI'm really hoping by the end of the summer the functionality is merged and documented. That's the goal at least.21:43
oneswigGood plan21:43
trandlesJulia and her team are chomping at the bit to get Kam started. Probably next week after the obligatory week of LANL hazing.21:44
trandlesI mean, training.21:44
oneswigI'm sure.21:45
oneswigHow much deploy time do you think can be saved?21:46
trandlesdepends a lot on how long it takes to go back through the BIOS21:47
trandlesI have some 2TB nodes that take nearly 20 minutes to start booting21:47
oneswigof course.  A long and arduous journey21:47
oneswigouch21:48
trandlesIt should be a lot of gain, even doing all the shutdown-style things you have to do before the kexec. Unmounting network filesystems, etc...you do that anyway. For the stateless HPC compute node case you don't really care to shut down many services gracefully. It'll be unmount, downlaod kernel+ramdisk, kexec-pivot_root and go.21:50
oneswigDo you think it could work with trusted boot?  Perhaps a long shot.  Not even sure why I'm asking21:51
trandlesHaven't thought about that much...21:52
trandlesIt would definitely work the way we do things today. We've tested it manually just to see what happens.21:53
oneswigWay back in the day, I worked on a LinuxBIOS equivalent for AlphaServers, replacing the BIOS with an embedded Linux kernel.  I was always deeply skeptical about chainloading kernels.  I want to state for the record I was probably overly skeptical and wrong :-)  Only took me 20 years.21:53
julianp:D Interesting. Ahead of your time.21:55
trandlesI'm going to have to run...another meeting in 5 minutes. Anyway, kkillsfirst is also on the openstack-scientific-sig slack.21:55
oneswigCool, see you around Kam!21:55
trandlesHopefully more updates to come during the summer :)21:55
oneswigIn fact we are nearly out of time.21:56
oneswigb1airo: can you mail folks for the ISC BoF? That would be a great help21:57
b1airoyep absolutely - can do that todaay21:57
oneswigThanks Blair21:58
oneswigI'm on vacation next week (woohoo), much though I enjoy yappin' on IRC it aint happening21:59
trandlesEnjoy vacation oneswig21:59
b1airoi'm not jealous...21:59
oneswigThanks trandles :-)21:59
kkillsfirstSee you later everyone. I hope to get a tiny cluster working at home this week. :)22:00
oneswigb1airo: summer's on the way22:00
julianpNice kkillsfirst. See y'all next time.22:00
oneswigkkillsfirst: nice to meet you.  Good luck!22:00
oneswigmartial: time to close22:00
martialyep22:00
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martial#endmeeting22:00
*** openstack changes topic to "OpenStack Meetings || https://wiki.openstack.org/wiki/Meetings/"22:00
openstackMeeting ended Tue May 25 22:00:57 2021 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)22:00
openstackMinutes:        http://eavesdrop.openstack.org/meetings/scientific_sig/2021/scientific_sig.2021-05-25-21.00.html22:01
openstackMinutes (text): http://eavesdrop.openstack.org/meetings/scientific_sig/2021/scientific_sig.2021-05-25-21.00.txt22:01
openstackLog:            http://eavesdrop.openstack.org/meetings/scientific_sig/2021/scientific_sig.2021-05-25-21.00.log.html22:01
martialthanks for coming22:01
oneswigThanks all22:01
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