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| yasufum | hi, tacker team | 08:00 |
|---|---|---|
| yoshito-ito | hi | 08:00 |
| manpreet | hi | 08:01 |
| ueha | hi | 08:01 |
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| yasufum | hi | 08:03 |
| takahashi-tsc | Hi | 08:03 |
| yasufum | #startmeeting tacker | 08:03 |
| openstack | Meeting started Tue Feb 16 08:03:30 2021 UTC and is due to finish in 60 minutes. The chair is yasufum. Information about MeetBot at http://wiki.debian.org/MeetBot. | 08:03 |
| openstack | Useful Commands: #action #agreed #help #info #idea #link #topic #startvote. | 08:03 |
| *** openstack changes topic to " (Meeting topic: tacker)" | 08:03 | |
| openstack | The meeting name has been set to 'tacker' | 08:03 |
| LiangLu | Hi | 08:03 |
| yasufum | First, I do not update topics on etherpad. Sorry | 08:04 |
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| yasufum | #link https://etherpad.opendev.org/p/tacker-meeting | 08:04 |
| yasufum | There are no topics for today on the etherpad | 08:05 |
| yasufum | but, do you have any topic? | 08:05 |
| LiangLu | I have one topic to discuss, should I go on? | 08:06 |
| yasufum | yes, please | 08:06 |
| LiangLu | https://etherpad.opendev.org/p/tacker-meeting#14 | 08:06 |
| LiangLu | L14~ | 08:06 |
| LiangLu | It is about a parameter changing in patch K8s-mgmtdriver | 08:07 |
| yasufum | #topic Existing code parameters changing in sample patch K8s-mgmtdriver | 08:07 |
| *** openstack changes topic to "Existing code parameters changing in sample patch K8s-mgmtdriver (Meeting topic: tacker)" | 08:07 | |
| LiangLu | https://review.opendev.org/c/openstack/tacker/+/771434/5/tacker/vnflcm/vnflcm_driver.py#503 | 08:07 |
| LiangLu | here is the patch | 08:07 |
| LiangLu | as :yoshito-ito mentioned in last meeting, this patch will published as a sample of tacker, due to cannot run FT on Zuul | 08:08 |
| LiangLu | However, this patch is adding new parameters in vnflcm_driver, to make sure logic in vnflcm interfaces methods runs well | 08:09 |
| LiangLu | like the code above, vim_connection_info is added in instantiate_end calling | 08:10 |
| LiangLu | Firstly I would like to confirm is it good to add parameters for sample patch use.. | 08:11 |
| yasufum | is that all? | 08:14 |
| LiangLu | yes | 08:14 |
| yasufum | I cannot get your point actually… | 08:15 |
| yasufum | We cannot merge the patch from yoshito-ito because of failrue of FT | 08:16 |
| yasufum | However, it will used as a sample instead. | 08:16 |
| yasufum | So, your patch also should be merged for the samle, right? | 08:17 |
| LiangLu | I'm sorry... actually I am talking about yoshito-ito's patch, same to last meeting | 08:18 |
| LiangLu | thus, it will be used as a sample | 08:18 |
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| LiangLu | However, that patch is add new paramters from vnflcm_driver to be used in patch, thus, this sample patch is fixing existing code | 08:20 |
| LiangLu | sorry for confusing... my point is should we avoid fixing existing code/parameters for sample patches? | 08:21 |
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| yasufum | Do you mean the sample cannot run without your fixes, right? | 08:25 |
| LiangLu | yes, exactly | 08:25 |
| yasufum | If so, it should be merged. | 08:25 |
| LiangLu | Thanks for advise! | 08:26 |
| LiangLu | So, I will upload patch for this vnflcm_driver parameter fix, separate from sample patch ,is that OK? | 08:27 |
| yasufum | The reason of adopting sample code is we cannot deploy network configs on Zuul env, and it is not related to tacker’s changes. | 08:28 |
| yasufum | So we do not need to consider a sample or not. | 08:28 |
| yasufum | Including as a sample is a workaround currently, and it will be merged with FT hopefully. | 08:29 |
| LiangLu | Got it, thanks for advise again | 08:30 |
| yasufum | thanks! | 08:30 |
| yasufum | We can go on to the next topic. | 08:32 |
| yasufum | Is there any other topic? | 08:32 |
| ueha | Continuing from last week, could you review the cnf scale patch. | 08:33 |
| ueha | https://review.opendev.org/c/openstack/tacker/+/765786 | 08:33 |
| ueha | However, I am getting a RETRY_LIMIT error in FunctionalT after rebase... | 08:34 |
| yasufum | OK, can you give us your topic shortly for setting “topic”? | 08:34 |
| takahashi-tsc | Yes, if no more topics, I'd like to confirm current Zuul status... Almost patch are failed with RETRY_Limit.. | 08:35 |
| ueha | Zuul FT RETRY_LIMIT erorr | 08:35 |
| yasufum | #topic Zuul FT RETRY_LIMIT erorr | 08:35 |
| *** openstack changes topic to "Zuul FT RETRY_LIMIT erorr (Meeting topic: tacker)" | 08:35 | |
| yasufum | thanks | 08:35 |
| ueha | It seems to be occurring in other patches as well, does anyone know any solution? | 08:35 |
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| ueha | When I built it in the local environment, there was no particular problem. | 08:36 |
| ueha | . | 08:36 |
| yasufum | I have noticed the problem, but cannot find the cause yet. | 08:37 |
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| yasufum | it looks something happens while db migration of nova on controller node | 08:39 |
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| ueha | yes. | 08:40 |
| ueha | I suspect that the following commits from devstack, which was merged on 2/11, may have affected it. | 08:40 |
| ueha | https://opendev.org/openstack/devstack/commit/556f84aea90c572873fc9834292635b41e590224 | 08:41 |
| ueha | But I also don't know the cause and solution now.. | 08:42 |
| ueha | takahashi-tsc: do you have any information this RETRY_LIMIT error? | 08:43 |
| takahashi-tsc | No... I cannot find solution yet. | 08:43 |
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| yasufum | This change looks hard to understand at a glance. I need some more time for ... | 08:44 |
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| yasufum | OK. Anyway, please continue to find out the cause of the issue. I would like also to do so. | 08:49 |
| yasufum | Thanks | 08:49 |
| takahashi-tsc | Yes, I'd like to continue to investigate. | 08:49 |
| ueha | OK, I will also continue to search for a solution. thanks! | 08:50 |
| yasufum | Is there any topic, or asking for review? | 08:51 |
| ueha | I also posted a patch for cnf heal yesterday. https://review.opendev.org/c/openstack/tacker/+/775656 | 08:51 |
| ueha | If the zuul error is resolved, could you review it. thanks | 08:51 |
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| yasufum | got it | 08:52 |
| ueha | That's all from me. thanks | 08:54 |
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| yasufum | It is almost the end of the time today. | 08:55 |
| yasufum | I would like to close this meeting if no more topics. | 08:55 |
| yasufum | OK, thanks for joining. Bye! | 08:56 |
| takahashi-tsc | Thanks | 08:56 |
| yoshito-ito | thanks, bye! | 08:56 |
| LiangLu | Bye! | 08:57 |
| ueha | bye | 08:57 |
| yasufum | #endmeeting | 08:57 |
| *** openstack changes topic to "OpenStack Meetings || https://wiki.openstack.org/wiki/Meetings/" | 08:57 | |
| openstack | Meeting ended Tue Feb 16 08:57:03 2021 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4) | 08:57 |
| openstack | Minutes: http://eavesdrop.openstack.org/meetings/tacker/2021/tacker.2021-02-16-08.03.html | 08:57 |
| openstack | Minutes (text): http://eavesdrop.openstack.org/meetings/tacker/2021/tacker.2021-02-16-08.03.txt | 08:57 |
| openstack | Log: http://eavesdrop.openstack.org/meetings/tacker/2021/tacker.2021-02-16-08.03.log.html | 08:57 |
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| oneswig | #startmeeting scientific-sig | 21:00 |
| openstack | Meeting started Tue Feb 16 21:00:35 2021 UTC and is due to finish in 60 minutes. The chair is oneswig. Information about MeetBot at http://wiki.debian.org/MeetBot. | 21:00 |
| openstack | Useful Commands: #action #agreed #help #info #idea #link #topic #startvote. | 21:00 |
| *** openstack changes topic to " (Meeting topic: scientific-sig)" | 21:00 | |
| openstack | The meeting name has been set to 'scientific_sig' | 21:00 |
| oneswig | greetings | 21:00 |
| rbudden | hello | 21:01 |
| martial_ | hello :) | 21:01 |
| oneswig | #chair martial_ | 21:01 |
| openstack | Current chairs: martial_ oneswig | 21:01 |
| oneswig | how's it going? | 21:01 |
| oneswig | #link agenda for today https://wiki.openstack.org/wiki/Scientific_SIG#IRC_Meeting_February_16th_2021 | 21:02 |
| oneswig | b1airo raised an excellent point on the Baremetal SIG's activities | 21:03 |
| oneswig | #link Ironic deploy steps video from dtantsur https://youtu.be/uyN481mqdOs | 21:03 |
| oneswig | brb | 21:03 |
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| trandles | hi all...splitting attention between two meetings :( | 21:03 |
| oneswig | Hi trandles, glad you could make it | 21:04 |
| rbudden | Time splicing here as well, but it’s been too long, so I wanted to at least lurk! | 21:05 |
| martial_ | not meetings but multiple terminals :) | 21:06 |
| janders | g'day team! | 21:06 |
| oneswig | The Baremetal SIG has taken the initiative with a nice video. Back in January there was a thought we could do something similar. | 21:06 |
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| oneswig | Hey janders, nice to see you | 21:06 |
| martial_ | exiting topics for today's agenda | 21:06 |
| oneswig | Well I wonder what SIG members might be able to present on in a similar manner to help raise the SIG's profile. | 21:08 |
| oneswig | User stories perhaps, or specific pieces of tech and method | 21:08 |
| * janders is quickly grabbing a coffee, just woke up | 21:08 | |
| oneswig | I was showing a work colleague the SIG's book yesterday - reminded me how cool that was as a group effort | 21:12 |
| trandles | I should have more real world use case stories later this year, now that we're _finally_ getting a production deployment. | 21:13 |
| oneswig | trandles: that's great to hear. | 21:13 |
| trandles | we have multiple projects in flight that will take advantage of this infrastructure | 21:13 |
| oneswig | How have things progressed in the last couple of weeks? | 21:13 |
| rbudden | We should have our new cloud Explore up and running this year, so use cases, and possibly some migration war stories of combining two clouds | 21:13 |
| oneswig | rbudden: migrating users and projects from one cloud to another? | 21:14 |
| trandles | we just blew up a fairly fundamental road block on our deployment last week, so progress had been slow but will accelerate now | 21:14 |
| rbudden | oneswig: yes, migration two OpenStack clouds into a single consolidate cloud | 21:14 |
| rbudden | *consolidated | 21:14 |
| oneswig | #link priteau came across this a while back and it looks handy (but haven't tried it myself) https://github.com/os-migrate/os-migrate | 21:15 |
| trandles | I'm looking forward to learning from Mike's upcoming deployment at Indiana. Also, Chris Layton should be doing at least one new deployment in the coming weeks. | 21:15 |
| rbudden | Interesting, I’ll have to take a look at this | 21:15 |
| rbudden | Thanks oneswig ! | 21:15 |
| oneswig | +1 | 21:16 |
| trandles | Chris is at Oak Ridge...forgot to mention that | 21:16 |
| oneswig | trandles: is ORNL doing an Ironic deploy like yours? | 21:16 |
| trandles | I think ORNL will be RHOSP 16.1 like mine | 21:17 |
| oneswig | Nice work. | 21:17 |
| trandles | Mike is planning to do everything IPv6, so there might be lots to come from that work. I wish he was here... | 21:17 |
| oneswig | We have a project with a /28 public IPV4 allocation - so that'll be mostly IPV6 as well | 21:18 |
| oneswig | Not quite getting started on that part yet. But perhaps it won't be the last machine where I have about as many IPV4 addresses as I have fingers and toes | 21:19 |
| rbudden | We’re currently doing some IPv6. It’s a bit gnarly, but functional. I’ll be curious to see Mike’s work as well. | 21:19 |
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| oneswig | I do wonder if IPV6 is hugely neglected in network security | 21:20 |
| oneswig | (I'm sure not by you guys) | 21:21 |
| trandles | oneswig: our network security plan actually says "disable IPv6" | 21:21 |
| oneswig | that solves the issue | 21:22 |
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| oneswig | trandles: had some discussion recently on the ramdisk driver. Do you know of other sites using it? | 21:24 |
| trandles | oneswig: I do not | 21:24 |
| oneswig | Ah, too bad. Let's keep an eye out. | 21:24 |
| trandles | There may be some news RE: kexec deploy in the next week or two. | 21:25 |
| oneswig | That would be good. One of our team was raising earlier the provisioning cycle times were ~35 minutes on a bare metal system. Anything to help with that is good - although does it only work in flat networking? | 21:27 |
| janders | that's a lot of awesome projects going on! :) | 21:27 |
| trandles | oneswig: I can't answer that question at this point. That's a Julia question probably. | 21:28 |
| trandles | all of my ironic stuff with clusters is no-op networking | 21:29 |
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| janders | trandles - kexec - awesome! | 21:29 |
| janders | oneswig with 35 minute deploys, how much of this is due to reboots between BIOS/RAID config etc? | 21:29 |
| janders | fast track, kexec (and soon nvme cleaning) can help rapid node turn around, but hardware config might not be keeping up with that pace :/ | 21:30 |
| oneswig | I don't know at this stage, just heard it this afternoon. It might possibly be a dependency in Terraform causing nodes to be deployed in phases. I'm speculating | 21:30 |
| janders | I'm just thinking aloud: for low-latency high-turnover provisioning, it would likely make sense to come up with uniform BIOS/RAID/... config and simplify deploy and cleaning steps as much as possible, to avoid reboots | 21:31 |
| oneswig | This kit is old. NVMEs are a mirage on the horizon | 21:31 |
| oneswig | janders: now you're caffeinated, shall we move on? | 21:32 |
| janders | oneswig yes! :) | 21:32 |
| oneswig | #topic superclouds - virt on bare metal | 21:32 |
| *** openstack changes topic to "superclouds - virt on bare metal (Meeting topic: scientific-sig)" | 21:32 | |
| oneswig | janders made the comment 2 weeks ago we should dedicate time for this subject, I think it's well deserved. | 21:33 |
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| oneswig | #link For context, janders video on SuperCloud https://www.openstack.org/videos/summits/denver-2019/its-a-cloud-its-a-supercomputer-no-its-supercloud | 21:34 |
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| janders | oneswig this brings memories... hard to believe how much the World changed since (intl travel = foreign concept :/) | 21:35 |
| oneswig | Over here we've been wrangling for ages with ways to improve the flexibility in systems mixing virt and bare metal | 21:35 |
| oneswig | janders: sadly true | 21:35 |
| oneswig | johnthetubaguy sends apologies, he was hoping to come along but was feeling rough this evening. | 21:36 |
| oneswig | But I can tell you he's followed similar principles to SuperCloud in a couple of recent projects requiring mixed workloads of HPC and virt | 21:37 |
| oneswig | #link CSD3 and UM6P systems https://www.openstack.org/videos/summits/virtual/Lessons-learnt-expanding-Cambridge-Universitys-CSD3-Supercomputer-with-OpenStack | 21:37 |
| oneswig | Actually I don't think UM6P was mentioned in that video as it was still gunning for its TOP500 number | 21:38 |
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| oneswig | The major difference in approach I think relates to Ethernet vs IB networking. Working with Ethernet requires more consideration for switchport configs. IB IIRC had considerations of its own... | 21:39 |
| janders | how is the current state of Nova handling compute nodes popping in and out? | 21:40 |
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| janders | at the time of the Denver demo I had some little hacky manual cleanup to handle that IIRC | 21:40 |
| janders | I remember discussing this in the Nova PTG and there were some fixes on the way, but never got to deploying a solution fully based on Nova handling appearing/disappearing hypervisors without out-of-nova manual tweaks | 21:41 |
| oneswig | janders: I'm not aware of issues there. The major piece of work is in bringing nodes in and out of the Ansible inventory for OpenStack service deployment. | 21:41 |
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| janders | Right. Nice! I was always a fan of keeping a singificant proportion of complexity/logics in the deployment&management playbooks instead of tweaking OpenStack code too much, so all for that | 21:42 |
| janders | oneswig what are the main challenges with ethernet multi-tenant networking? | 21:42 |
| janders | I was hoping to have dual IB+eth SDN, but firmware bugs in CX6 prevented that and then I moved on to my current role, so I never got to work on it | 21:43 |
| oneswig | There have been issues with changing port config efficiently for multi-node deployments. For the networking-generic-switch driver this led to development of better batching of transactions so that a rack could be provisioned without 52 individual port operations | 21:45 |
| janders | oneswig what switching did you use if I may ask? | 21:46 |
| oneswig | For hypervisors, typically they are members of several VLANs. That config is applied outside of Ironic. | 21:46 |
| oneswig | Cumulus in a couple of cases and Arista in another | 21:47 |
| janders | unfortunately I have to say these are all the same old problems :/ | 21:47 |
| janders | (and some of this seems inherent to BM SDN scalability in general - I've seen some of this on IB) | 21:47 |
| janders | I ended up wiring up to four ports per node so that I can get a node into up to four different networks even though trunking wasnt working | 21:48 |
| janders | I was lucky I had all that kit sitting around from past projects, so cost wasnt an issue | 21:48 |
| oneswig | To be fair I think Ironic is developing significantly. A lot of progress has been made in the last few years. The first time we attempted this in production at scale, it was a lot harder! | 21:49 |
| janders | and BM SDN getting out of sync has been a concern across many solutions | 21:49 |
| oneswig | janders: That's certainly true. | 21:49 |
| janders | are those improvements happening in Ironic itself, or in Neutron & drivers? | 21:50 |
| oneswig | Progress on all fronts, but especially with Ironic's capabilities | 21:51 |
| janders | would you be able to point me to specific changes? I'd be interested to read up (I might have missed some of these) | 21:52 |
| janders | this is great news | 21:52 |
| janders | regarding port config batching, are the switches able to do this on a port range basis? | 21:53 |
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| janders | I've seen cases where that was a bottleneck also | 21:53 |
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| oneswig | Here's a couple - https://review.opendev.org/c/openstack/networking-generic-switch/+/743269 - cumulus support for NGS | 21:53 |
| janders | I wonder if the driver is inefficient because of catering for the lowest common denominator | 21:53 |
| oneswig | And https://review.opendev.org/c/openstack/networking-generic-switch/+/743283 - batching transactions (think this one is yet to merge) | 21:54 |
| janders | ah, different repo - this is why I missed it | 21:54 |
| janders | is there an IRC channel for this project? I'd assume so? | 21:54 |
| oneswig | janders: the networking drivers are dumb. For example, they save the config after every operation. | 21:55 |
| janders | ouch! | 21:55 |
| janders | s/supercomputing/supercongestion.... | 21:55 |
| janders | being mindful of time, I wanted to throw one more topic into the mix | 21:56 |
| oneswig | Right... so without some awareness the Neutron port wiring suddenly becomes a lengthy serialised process | 21:56 |
| oneswig | janders: go ahead, hope it's a small one :-) | 21:56 |
| janders | how would container-based ephemeral hypervisors fit into your use cases? | 21:56 |
| janders | its big but we can just touch on it and continue another time :) | 21:56 |
| janders | as you may know RHAT is pouring a lot of effort into KNI (Kubernetes Native Infrastructure) | 21:57 |
| oneswig | like kube-virt? | 21:57 |
| janders | Kubevirt is also related to that | 21:57 |
| janders | spot on oneswig | 21:57 |
| janders | similar end game, different implementation | 21:57 |
| janders | if majority of workloads on the system are containerised I think it is a strong option | 21:58 |
| janders | (if not, SuperCloud may be more flexible still) | 21:58 |
| janders | but I wonder what your thoughts are? | 21:58 |
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| janders | we can add this topic to agenda for the meeting in two weeks time if you like :) | 21:59 |
| janders | my bad for not raising this earlier, though I find SDN discussions fascinating! | 21:59 |
| oneswig | It hasn't been a consideration so far. We certainly have users with a high-performance kubernetes focus, but I wouldn't plumb our control plane networks into that world without thinking about it... | 22:00 |
| janders | this is a great answer, thank you | 22:00 |
| oneswig | janders: same time 2 weeks hence? | 22:00 |
| janders | yes! | 22:00 |
| janders | thank you all | 22:00 |
| oneswig | Sounds good to me | 22:00 |
| oneswig | #endmeeting | 22:00 |
| *** openstack changes topic to "OpenStack Meetings || https://wiki.openstack.org/wiki/Meetings/" | 22:00 | |
| openstack | Meeting ended Tue Feb 16 22:00:52 2021 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4) | 22:00 |
| openstack | Minutes: http://eavesdrop.openstack.org/meetings/scientific_sig/2021/scientific_sig.2021-02-16-21.00.html | 22:00 |
| openstack | Minutes (text): http://eavesdrop.openstack.org/meetings/scientific_sig/2021/scientific_sig.2021-02-16-21.00.txt | 22:00 |
| openstack | Log: http://eavesdrop.openstack.org/meetings/scientific_sig/2021/scientific_sig.2021-02-16-21.00.log.html | 22:00 |
| rbudden | thanks! | 22:01 |
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