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| mmichelson | Hi everyone | 17:15 |
|---|---|---|
| mmichelson | I figure I'll get this thing started | 17:16 |
| mmichelson | Hopefully this time there won't be a catastrophic netsplit that prevents me from ending the meeting | 17:16 |
| mmichelson | #startmeeting ovn_community_development_discussion | 17:17 |
| openstack | Meeting started Thu Oct 8 17:17:08 2020 UTC and is due to finish in 60 minutes. The chair is mmichelson. Information about MeetBot at http://wiki.debian.org/MeetBot. | 17:17 |
| openstack | Useful Commands: #action #agreed #help #info #idea #link #topic #startvote. | 17:17 |
| openstack | The meeting name has been set to 'ovn_community_development_discussion' | 17:17 |
| numans | Hello | 17:17 |
| mmichelson | Hi numans | 17:17 |
| mmichelson | I figure I can go first. | 17:18 |
| dceara | Hi | 17:18 |
| mmichelson | I've been working on adding some unit test infrastructure to OVN. This way it's easier to test smaller units (e.g. functions). I've added a couple of small example unit tests and I plan to submit an RFC patch series before the end of the week. | 17:19 |
| mmichelson | Other than that, I've been doing reviews. And that's all from me. | 17:19 |
| numans | I guess I can go next. | 17:21 |
| _lore_ | hi all | 17:22 |
| numans | I worked on the reject action and submitted the patches for review | 17:22 |
| numans | this reduces a lot of logical flows now. | 17:22 |
| numans | I have started working on reducing the load balancer hairpin lflows. | 17:23 |
| numans | I'm hoping I'll submit the patches for review early next week. | 17:23 |
| numans | I couldn't do much review this week. | 17:23 |
| numans | That's it from me. | 17:23 |
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| dceara | numans: Thanks for taking care of the hairpin lflows, I wanted to have a go at it for a while but didn't get a chance to. | 17:24 |
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| dceara | numans: Looking forward to the patches :) | 17:24 |
| numans | dceara, welcome | 17:24 |
| numans | I was able to reduce 50% of the patches. | 17:24 |
| numans | If ovs could support something like - ct(commit, nat(dst=reg0)) that would have been great. | 17:25 |
| numans | but looks like it doesn't support. | 17:25 |
| numans | because of which we still need to add an lflow to do ct_snat for each vip. | 17:25 |
| zhouhan | numans: 50% of the patches? or you meant flows :) | 17:25 |
| numans | zhouhan, :) | 17:25 |
| numans | s/patches/lflows. | 17:25 |
| numans | my bad :) | 17:25 |
| zhouhan | although 50% patches would be awesome, too | 17:25 |
| numans | zhouhan, I was talking about the hairpin load balancer lflows. | 17:26 |
| mmichelson | numans, why doesn't that ct() action work? Does nat not accept a register as an rvalue? | 17:26 |
| numans | zhouhan, FYI - I've submitted the reject action patch series. | 17:26 |
| numans | mmichelson, I didn't support that way. | 17:26 |
| zhouhan | numans: thanks! It is in my review list | 17:27 |
| numans | May be we can enhance ovs for that. I'm planing to give a shot at that, if its possible. | 17:27 |
| numans | not sure if imaximets is here.. do you think ovs supports something like - ct(nat(dst=reg0)) | 17:27 |
| numans | since it supports the zone value from a register. | 17:27 |
| imaximets | numans, I'm here, and I'm not sure. :) | 17:28 |
| numans | imaximets, I tried it isn't supported. | 17:28 |
| numans | imaximets, it does support ct(zone=NXM_NX_REG0,...) | 17:28 |
| numans | so I wonder ovs could support something similar for nat too | 17:29 |
| numans | Ok. that's it from me. If someone wants to go next. | 17:29 |
| zhouhan | I can go quickly | 17:29 |
| zhouhan | I did some reviews. Why reviewing dceara's patch for "persistent conflict flows", I figured out 2 problems of my code and I submitted the fixes. | 17:31 |
| zhouhan | I am waiting for the review and also waiting for next version from dceara. | 17:31 |
| zhouhan | That's it from me. | 17:31 |
| dceara | zhouhan: I just reviewed the 2 patches today. I acked the first one but for the second one I'm a bit confused. | 17:32 |
| dceara | zhouhan: It seems to me we're not changing behavior at all. I replied on the ML though. | 17:32 |
| dceara | zhouhan: Re the "predictable conflict resolution", I'll try to send a patch soon. | 17:32 |
| zhouhan | dceara: ok, thanks. I haven't checked ML yet. | 17:32 |
| dceara | s/a patch/a new revision | 17:33 |
| imaximets | numans, according to docs, nat src and dst only supports addresses and ports as a value. | 17:33 |
| numans | imaximets, ack. | 17:33 |
| imaximets | zhouhan, I looked through old patches once again and found this: https://patchwork.ozlabs.org/project/openvswitch/patch/1564100775-80657-1-git-send-email-hzhou8@ebay.com/ | 17:34 |
| zhouhan | imaximets: oh, this was never applied? | 17:36 |
| imaximets | zhouhan, nope | 17:37 |
| zhouhan | imaximets: oh, that's why I kept wondering how would the bug reported by Mark happened again. I remembered that I fixed it long ago ... | 17:38 |
| zhouhan | Mark = Mark Gray | 17:38 |
| mmichelson | zhouhan, btw, I got word from Mark that he's planning to do a v2 next week. He couldn't make this meeting | 17:38 |
| imaximets | zhouhan, I think you need to discuss with him, which approach is better. | 17:39 |
| zhouhan | mmichelson: imaximets Ok, thanks for this information. I will check it again with him | 17:40 |
| imaximets | btw, I do not have anything else for this meeting today. | 17:42 |
| dceara | I can go next if that's OK. | 17:42 |
| zhouhan | dceara: Mark Gray talked about "There is a failure on one ovn UT with this change. It gets resolved by the fix that Dumitru suggests." Do you know what's that? | 17:43 |
| dceara | zhouhan: It's related to chassis/chassis_private. The simplest way to reproduce is to start an OVN sandbox and "ovn-sbctl destroy chassis ." | 17:43 |
| dceara | zhouhan: With Mark's latest patch applied ^ | 17:44 |
| zhouhan | dceara: ok, thanks, I will try it. What's the suggested fix then? | 17:44 |
| zhouhan | I still doesn't understand "Essentially *_is_new() will never return true for rows inserted locally.", and how destroying a chassis would trigger the _is_new() call. | 17:45 |
| zhouhan | Maybe you could reply in the email? | 17:46 |
| dceara | zhouhan: Sure, I'll try to detail it there. | 17:46 |
| zhouhan | thanks a lot dceara. (please continue your update) | 17:46 |
| dceara | We had a bug reported by OpenStack related to IGMP Snoop and localnet. I sent the fix for it (http://patchwork.ozlabs.org/project/ovn/patch/1602164887-24755-1-git-send-email-dceara@redhat.com/) but while testing I realized there's another problem with IGMP Relay and localnet causing multicast packets to be duplicated sometimes. I don't know how to fix it yet or if it's possible to but I added a TODO entry and am looking forward to | 17:48 |
| dceara | suggestions. :) | 17:48 |
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| * numans waves and disappears | 17:49 | |
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| dceara | And more of an OVS issue but spotted with an OVN deployment, there's a bug in the OVS kernel module when doing DNAT. I sent a patch for it on the netdev mailing list. The issue was seen very often with OVN-k8s. | 17:50 |
| dceara | That's it from my side today, thanks! | 17:50 |
| dceara | Oh, link for the conntrack issue: https://bugzilla.redhat.com/1877128 | 17:51 |
| openstack | bugzilla.redhat.com bug 1877128 in openvswitch2.13 "OVS complains Invalid Argument on TCP packets going into conntrack" [Urgent,Post] - Assigned to dceara | 17:51 |
| zhouhan | dceara: thanks, could you share the link to the patch as well? | 17:52 |
| dceara | zhouhan: Sure: https://patchwork.kernel.org/patch/11820857/ | 17:53 |
| zhouhan | thanks dceara | 17:55 |
| mmichelson | Anybody else going to give an update? | 17:57 |
| _lore_ | I can update very fast | 17:58 |
| _lore_ | I am working on adding renew/rebind msg support to IPv6 Prefix Delegation | 17:58 |
| _lore_ | I guess I will post v1 by the end of the week | 17:59 |
| _lore_ | that's all from my side | 18:00 |
| mmichelson | OK, anyone else? | 18:01 |
| mmichelson | All right everyone, thanks! Have a good day/afternoon/night! | 18:02 |
| dceara | Bye! | 18:03 |
| imaximets | Bye! | 18:03 |
| mmichelson | #endmeeting | 18:04 |
| openstack | Meeting ended Thu Oct 8 18:04:17 2020 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4) | 18:04 |
| openstack | Minutes: http://eavesdrop.openstack.org/meetings/ovn_community_development_discussion/2020/ovn_community_development_discussion.2020-10-08-17.17.html | 18:04 |
| zhouhan | bye | 18:04 |
| openstack | Minutes (text): http://eavesdrop.openstack.org/meetings/ovn_community_development_discussion/2020/ovn_community_development_discussion.2020-10-08-17.17.txt | 18:04 |
| openstack | Log: http://eavesdrop.openstack.org/meetings/ovn_community_development_discussion/2020/ovn_community_development_discussion.2020-10-08-17.17.log.html | 18:04 |
| mmichelson | phew, it worked this week :) | 18:04 |
| _lore_ | bye | 18:07 |
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