Thursday, 2020-07-23

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blpHi everyone. I'm going to be mostly lurking because I'm in another call too.17:14
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flaviofo/17:15
pandao/17:15
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_lore_hi all17:19
zhouhanHi17:20
flaviofhi folks. hope you had a restful break, zhouhan17:21
zhouhanflaviof: yeah, thanks!17:21
*** mmichelson_ is now known as mmichelson17:22
mmichelsonHi everyone17:22
mmichelson#startmeeting17:22
openstackmmichelson: Error: A meeting name is required, e.g., '#startmeeting Marketing Committee'17:22
mmichelsoncrap17:22
mmichelson#startmeeting ovn_community_development_discussion17:22
openstackMeeting started Thu Jul 23 17:22:49 2020 UTC and is due to finish in 60 minutes.  The chair is mmichelson. Information about MeetBot at http://wiki.debian.org/MeetBot.17:22
openstackUseful Commands: #action #agreed #help #info #idea #link #topic #startvote.17:22
openstackThe meeting name has been set to 'ovn_community_development_discussion'17:22
mmichelsonSorry for the late start. Things are suddenly a bit crazy today17:23
mmichelsonovnkube CI is having problems with OVN 20.0617:23
mmichelsonStill gathering facts on the matter.17:23
mmichelsonBut as for my activity the past week17:23
mmichelsonI put up a patch for lb_force_snat_ip and dnat_force_snat_ip to work for dual stack17:24
mmichelsonAnd I put up a patch for ECMP symmetric replies17:24
mmichelsonThat ECMP patch needs fixing because there are some test failures that numans pointed out17:24
mmichelsonblp, I know you're mostly lurking, but something to bring to your attention is that OVN committers should probably be made maintainers in patchwork17:25
mmichelsonblp, if you have the proper contact info for getting that done, then OVN maintainers can update patch states when desired.17:25
blpmmichelson: I don't think there is any self-service administration for patchwork, that is, I don't think that I can do that myself.17:26
mmichelsonblp, ok, imaximets said that you might know who to get in contact with though17:26
blpmmichelson: In the past, I've always emailed one of the owners of the patchwork instance. My guess is that they'd take requests from others too, or I could send an email recommending that they take it from you.17:26
mmichelsonblp, OK. I'm willing to send the message myself. But not sure who to send to.17:27
mmichelson(I'd CC the OVN committers)17:27
blpJeremy Kerr <jk@ozlabs.org> is who I17:27
blpve emailed in the past17:27
mmichelsonblp, OK thanks.17:28
mmichelsonAnd that's all I wanted to bring up.17:28
blpOK. Do you want to start by contacting Jeremy? I'll back you up as needed. Or we can do it another way if you prefer.17:28
zhouhanI can go next.17:30
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zhouhanI am catching up after the vacation. I just submitted the formal patch series for avoid ARP related flow explosion: #link https://patchwork.ozlabs.org/project/openvswitch/list/?series=19171417:31
zhouhanAs I saw the test report from Girish for the RFC was effective17:31
zhouhanI will catch up with some reviews, first one would be the ECMP patch from mmichelson17:32
zhouhanThat's my update17:32
flaviofNice. Avoiding flow explosion is always a good thing. Let me jump next...17:34
flaviofI have just one small announcement to make to folks who may know or use ovn-org/ovn-fake-multinode.17:34
flaviofThanks to Eelco, we now have the ability to build ovs/kernel and run test traffic. If that is something that interests you, take a look at:17:34
flaviof#link https://github.com/ovn-org/ovn-fake-multinode/blob/master/README_DEVELOPMENT.md  Using ovn-fake-multinode for development and testing17:34
flaviofHuge thanks to chaudron!17:35
flaviofThat is it from me.17:35
zhouhanthanks flaviof. That's helpful, but I don't use vagrant. Does it make big difference?17:37
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flaviofoh not at all. you can use the scripts on any env. Vagrant just help getting the host to run the cluster.17:38
zhouhanI have tried it before, which worked well. But I didn't try the "change and retest" process on that yet. Does it require rebuilding the docker images?17:39
flaviofnope, which is a huge time saver. once you have the images you can restart very easily/fast17:39
zhouhanflaviof: oh that's great!17:40
pandaoneline from me, I'm a but swamped at the moment with the rest, so even my OVN day was put on hold, not sure If I can do something tomorrow, but I'll try. I have two bugs on my list and one has a poste solution but needs improvement.17:42
panda:( sorry17:42
mmichelsonpanda, we've all been there.17:43
blppanda: Have we met before? I know at least one Panda.17:44
* numans_ joins now and says Hi to everyone17:44
pandablp: there are not many pandas out there, but probably we haven't met.17:44
*** numans_ is now known as numans17:45
pandanumans: you can say you're early for next meeting.17:45
blpI guess you are probably not Aurojit Panda formerly at Berkeley.17:45
zhouhan(most pandas in the world are in my hometown :)17:45
blpzhouhan: :-)17:45
pandablp: nope, sorry to crush your expectation. I'm Gabriele Cerami when I'm not panda. I introduced myself in the mailing list a whil ago17:46
flaviofzhouhan++17:46
blppanda: OK, pleased to meet you17:46
pandaI was able to clear out some bugs from bugzilla, but they are activities that can go unnoticed sometimes17:46
pandaespecially if they don't require a patch17:46
pandablp: :)17:47
pandaanyway, that's it for my update.17:47
numansI can go real quick17:47
flaviofI second what mmichelson said, panda. no worries. Is the patch you are talking about this one:17:47
flaviof#link https://patchwork.ozlabs.org/project/openvswitch/patch/20200710235515.GA998029@localhost/ ?17:47
* flaviof sorry numans !17:48
numansflaviof, no worries. I can go after  you17:48
mmichelsonnumans, flaviof already went, actually :)17:48
flaviofnumans: go ahead, pls.17:48
pandaflaviof: yep, it is.17:48
numansOk. I submitted this small patch series to improve conntrack usage in OVN17:48
numans#link https://patchwork.ozlabs.org/project/openvswitch/list/?series=19163017:48
numansThere were some performance comparisons between OVN kubernetes and the default openshift SDN with openshift deployment17:49
numansand ovn deployment seemed to fair bad.17:49
numansWhile debugging noticed that we are sending the packet to conntrack many times when a logical switch has ACLs with allow-related and load balancers17:50
numansThis patch series should help a bit.17:50
numansI didn't get much time this week on reviews. I have started looking into mmichelson ECMP patches.17:50
numansThat's it from me.17:51
mmichelsonThanks. Anybody else?17:51
flaviofnumans++ openshift SDN uses OVS directly?17:51
numansflaviof, yes it does.17:51
flaviofack. ty17:52
numansit also uses iptables via kube proxy for load balancing.17:52
zhouhannumans: is the patch expected to bring it at the same performance level as the other one?17:52
numanszhouhan, it should improve17:52
numanszhouhan, with openshift SDN I see 2 recirculations. with this patch its just 1 recirculation for Pod to Pod traffic17:53
zhouhannumans: ok, just want to confirm there is no other known gap17:53
numansok.17:53
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numansmmichelson, probably I'm the last one to update.17:55
mmichelsonnumans, ok17:55
mmichelsonWell in that case, everyone have a good day/afternoon/evening17:55
mmichelsonBye!17:55
numansBye17:55
zhouhanbye17:55
blpbye!17:55
mmichelson#endmeeting17:55
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openstackMeeting ended Thu Jul 23 17:55:56 2020 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)17:55
openstackMinutes:        http://eavesdrop.openstack.org/meetings/ovn_community_development_discussion/2020/ovn_community_development_discussion.2020-07-23-17.22.html17:55
openstackMinutes (text): http://eavesdrop.openstack.org/meetings/ovn_community_development_discussion/2020/ovn_community_development_discussion.2020-07-23-17.22.txt17:56
openstackLog:            http://eavesdrop.openstack.org/meetings/ovn_community_development_discussion/2020/ovn_community_development_discussion.2020-07-23-17.22.log.html17:56
pandabye!17:56
flaviofbye all17:56
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