Thursday, 2020-07-16

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tryauuumgonna ask a stupid question, please bear with me. What kind of python library should I use to manage ovn database?07:21
tryauuumthere is a package python-networking-ovn in ubuntu, it probably provides all the features I need. But it is kind of huge and full of openstack-related things07:22
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mmichelsonHi everyone. Time slipped away from me17:18
mmichelson#startmeeting ovn_community_development_discussion17:18
openstackMeeting started Thu Jul 16 17:18:51 2020 UTC and is due to finish in 60 minutes.  The chair is mmichelson. Information about MeetBot at http://wiki.debian.org/MeetBot.17:18
openstackUseful Commands: #action #agreed #help #info #idea #link #topic #startvote.17:18
openstackThe meeting name has been set to 'ovn_community_development_discussion'17:18
mmichelsonI can get things started.17:19
mmichelsonI'm finishing up testing a patch that will allow dnat_force_snat and lb_force_snat options to work with dual-stack routers.17:19
mmichelsonPlanning on submitting the patch to the list as soon as this meeting is done.17:20
mmichelsonAlso still working on my patch for forcing symmetric replies to incoming traffic on ECMP routes.17:20
mmichelsonI've hit a snag there where the ct_commit() command is very restrictive with what you can set ct_label and ct_mark to17:20
mmichelsonI can't just do something like ct_commit(ct_label=eth.src)17:20
_lore_hi all17:21
mmichelsonBecause "eth.src" isn't an integer. So I need to expand the command to be able to accept tokens instead of just literals.17:21
mmichelsonIn doing so, I'll also likely expand it to allow for specific chunks of ct_label and ct_mark to be set (i.e. ct_label[0..47]=eth.src)17:21
mmichelsonOnly other bit of news is that the ovn.org "Releases" section now actually has content on it instead of placeholder text17:22
mmichelson#link https://www.ovn.org/en/releases/17:22
mmichelsonAnd that's all from me.17:23
numansHi17:23
numansI can go real quick.17:23
numansNothing much this week. dceara found an issue yesterday with monitor-all set to true17:24
numansIt was the side effect of the I-P patches.17:24
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numansthanks to dceara for finding 3 bugs so far in the I-P patches17:25
numansI submitted the fix and it is merged to master and branch-20.0617:25
numansI have been working on optimizing the conntrack stuff in ovn.17:25
numansBut nothing concrete yet. although I've a WIP RFC patch which is working17:25
numansIf some one wants to take a look17:26
numans#link https://github.com/numansiddique/ovn/commit/7fe68a080c1db09c0fcdcad3a1557f9f1ba2353417:26
numansI couldn't spend much time in reviews this week,17:26
numansThat's it from me.17:26
mmichelsonThanks. I should also schedule some review time this week :(17:27
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dcearanumans: thanks for the quick fix for the I-P bug!17:28
numansdceara, thanks for the review :)17:28
mmichelsonWho would like to go next?17:29
dcearaI have a quick note this week: I played a bit with imaximets's stream record/replay series and it's great! And I really hope we can get it to the state where it can be used as a debugging tool in production.17:31
imaximetsdceara, thanks!17:32
dcearaI don't know how relevant it is for this meeting but just in case, ovn-heater supports now running the OVN scale tests on CentOS/RHEL platforms too. Thanks to Jianlin Shi!17:33
mmichelsonThat'll probably be useful for us RH folks :)17:33
numansdceara, may be we can consider moving it under ovn-org/ovn-heater if everyone is fine17:33
dcearanumans: sure, if people think it fits there, I'm all for it.17:34
mmichelson+1 from me17:34
numans+1 from me too. may be we can check with zhouhan and if he is fine17:35
dcearanumans: mmichelson: I'll bring it up on the mailing list then.17:35
numanssounds good17:35
_lore_can I go next?17:36
dcearaThat's it on my side, thanks!17:36
_lore_dceara: sorry :(17:36
dceara_lore_: no pb :)17:37
_lore_so this week I started working on this bz: https://bugzilla.redhat.com/show_bug.cgi?id=184757017:37
openstackbugzilla.redhat.com bug 1847570 in OVN "[RFE] Add support for BFD from OVN routers to other directly connected L3 devices" [Urgent,New] - Assigned to lorenzo.bianconi17:37
_lore_the capability to monitor ecmp next hop for HA17:37
_lore_I found the discussion upstream between tom and zhouhan17:38
_lore_and I would like to have their opnionion about next steps17:38
_lore_*opinions17:38
_lore_as suggested by numans, we can implement bfd monitoring in ovn-controller, using lib/bfd from ovs17:39
_lore_another approach would be to rely on ovs implementation, but this will trigger the issue about ovs interface to use for monitoring17:40
numanssince ovn can't be sure which interface to use, I personally prefer implementing in ovn.17:41
_lore_and last approch would be to extend svc_monitorning for that, but this would be non rfc compliant17:41
mmichelson_lore_, do you have a link to the discussion between tom and zhouhan?17:41
dceara_lore_: we do something similar for IGMP/MLD, we reuse the OVS library and we implement the protocol in ovn-conroller.17:41
_lore_uhm, let me look for it17:41
numansmmichelson, _lore_ its actually trozet :)17:41
mmichelsonAh, Tim, not Tom :)17:42
_lore_mmichelson: sorry :)17:42
_lore_https://www.mail-archive.com/ovs-discuss@openvswitch.org/msg07197.html17:42
mmichelson_lore_, Thanks!17:42
_lore_so 2 for first option :)17:43
_lore_no other opinions??17:45
mmichelson_lore_, my initial reaction was to use the ovs BFD library in ovn-controller. zhouhan points out a good point that determining the ovn-controller that is responsible for performing the BFD is important17:46
_lore_yes17:46
_lore_for the moment I was thinking about running it on the gw_router or node where gw router port is scheduled17:47
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_lore_ok, I will exmplore the first option17:49
_lore_that's all from my side17:49
_lore_thx17:49
mmichelsonOK, do we have anyone else?17:50
imaximetsI don't have anything OVN specific. Mostly just reviewing things for OVS 2.14 branching.17:50
mmichelsonOK. I didn't notice anybody else in here talking. Is it safe to assume we're done?17:52
mmichelsonOK, I'll take the silence to assume we're done. By everyone!17:53
mmichelson*Bye17:53
mmichelson#endmeeting17:53
openstackMeeting ended Thu Jul 16 17:53:11 2020 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)17:53
openstackMinutes:        http://eavesdrop.openstack.org/meetings/ovn_community_development_discussion/2020/ovn_community_development_discussion.2020-07-16-17.18.html17:53
openstackMinutes (text): http://eavesdrop.openstack.org/meetings/ovn_community_development_discussion/2020/ovn_community_development_discussion.2020-07-16-17.18.txt17:53
openstackLog:            http://eavesdrop.openstack.org/meetings/ovn_community_development_discussion/2020/ovn_community_development_discussion.2020-07-16-17.18.log.html17:53
dcearaBye17:53
_lore_bye17:54
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flavioftryauuum: wrt  python library... This may be useful as a pointer: http://www.flaviof.com/blog2/post/main/ovsdbapp101/  it is just a 101 but I hope you can look at it and ask me/us more.19:50
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