Wednesday, 2018-09-19

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openstackgerritMerged openstack/neutron-lib master: policy-in-code support in neutron-lib  https://review.openstack.org/58503600:34
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openstackgerritNate Johnston proposed openstack/neutron master: Use mktemp instead of tempfile in gate_hook.sh  https://review.openstack.org/60353602:18
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openstackgerritIWAMOTO Toshihiro proposed openstack/neutron master: Drop of_interface option  https://review.openstack.org/59949603:10
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openstackgerritKim Bao Long proposed openstack/neutron master: Introduce L3 agent extension for SNAT logging  https://review.openstack.org/57708603:39
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openstackgerritIWAMOTO Toshihiro proposed openstack/neutron master: Drop of_interface option  https://review.openstack.org/59949604:33
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openstackgerritReedip proposed openstack/networking-ovn master: DNM Fix Pool creation workflow  https://review.openstack.org/60332006:24
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openstackgerritKim Bao Long proposed openstack/python-neutronclient master: [WIP] Add 'snat' as a new resource type for logging in OSC plugin  https://review.openstack.org/60302806:51
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openstackgerritLajos Katona proposed openstack/neutron master: supported_vnic_type configurable for sriov and ovs  https://review.openstack.org/60160007:14
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manjeets_slaweq, ping07:33
slaweqmanjeets_: hi07:34
slaweqwhat are You doing here now? :)07:34
slaweqisn't it late for You?07:34
manjeets_slaweq, it is but I'm taking on that bug07:34
slaweqahh :)07:34
slaweqdid You found anything?07:34
manjeets_i checked that host info looks fine07:34
slaweqdid You check if router ports are really removed by l3 agent when router is set to down?07:35
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slaweqe.g. in case of Legacy router it should be like that probably07:36
manjeets_yes, ml2 rpc never recieve notification update_device_list after migration to ha07:36
slaweqand then L2 agent should set it to down probably07:36
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slaweqand in case of migration from ha that not happens?07:36
manjeets_https://github.com/openstack/neutron/blob/master/neutron/plugins/ml2/rpc.py#L34807:38
openstackgerritLajos Katona proposed openstack/neutron master: Move retry_if_session_inactive to tag OVO  https://review.openstack.org/60236207:38
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manjeets_this update device list basically update all the ports after state change of router07:38
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manjeets_which is never reached after migration to ha07:39
slaweqto ha or from ha?07:39
manjeets_to ha and afterwards07:39
manjeets_from ha as well07:39
slaweqin fact it isn't problem of migration07:39
slaweqYou can IMO reproduce it by simple setting router's admin_state_up to False07:40
slaweqthen ports of this router should be set to DOWN and for HA router they isn't, right?07:40
manjeets_slaweq, if router is dvr or something except ha router disable enable works fine07:41
manjeets_once its migrated to HA it stays ACTIVE forever even after disabling router07:41
manjeets_I mean port statuses stays ACTIVE07:42
slaweqexactly, so main problem here is that setting HA router to down don't set ports to DOWN also07:42
slaweqand that is the bug07:42
manjeets_yup07:42
manjeets_but question is can HA be set to down ? by definition if its brought down for one agent other agent will bring it up07:43
manjeets_slaweq, ^07:43
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slaweqno, if router is set to down it should be down on all hosts07:44
manjeets_oh ok07:44
slaweqYou are not removing router from one of L3 agents but disable it07:44
manjeets_got it07:44
slaweqfrom user pov it doesn't matter that it was ha07:44
slaweqmaybe try to use git bisect and try to find commit which broke it07:44
slaweqas this was working at the begin of August07:45
slaweqI then added this wait for ports are down to migration test07:45
slaweqand this was fine for all kinds of routers07:45
manjeets_i checked history of some l3 files but couldn't locate it but git bisect is next I'm gonna try that next07:46
slaweqthat may be something which doesn't look related at first glance07:47
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manjeets_i thought some callback from l3hamode or somewhere in migration logic could be culprit but no evidence yet07:48
slaweqIMHO it may be also some db logic change/optimization - maybe something is now executed faster then it was and then some other call don't have proper data from db to send notifications07:50
slaweqor if notifications to L3 agent are going fine, maybe it's something on agent's side07:50
slaweqif You will search with git bisect, please restart all services each time :)07:51
manjeets_not just neutron-server ?07:51
manjeets_thanks for heads up i'll restart agents too07:52
slaweqI would rather try to restart neutron-server and neutron-l3-agent07:52
slaweqand ovs agent just to be sure :)07:52
slaweqI know that I was able to reproduce it on one node devstack so it should be easy to restart all services at once07:53
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openstackgerritSlawek Kaplonski proposed openstack/neutron-tempest-plugin master: Add connectivity test via 2 routers and tenant networks  https://review.openstack.org/59867608:30
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openstackgerritLucas Alvares Gomes proposed openstack/networking-ovn master: Default tempest jobs to Python3  https://review.openstack.org/60234810:19
openstackgerritLucas Alvares Gomes proposed openstack/networking-ovn master: Add a period job for Fedora 28  https://review.openstack.org/60363410:19
openstackgerritLucas Alvares Gomes proposed openstack/networking-ovn master: Add a period job for Fedora 28  https://review.openstack.org/60363410:20
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openstackgerritSlawek Kaplonski proposed openstack/neutron master: DNM Try grenade job with hybrid fw driver in rocky  https://review.openstack.org/60215610:50
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openstackgerritMerged openstack/networking-ovn master: Use neutron's agent_down_time for agent liveness  https://review.openstack.org/58502711:03
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openstackgerritNate Johnston proposed openstack/neutron master: Add tempest iptables_hybrid job for fedora  https://review.openstack.org/60053011:12
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openstackgerritPierre Riteau proposed openstack/neutron master: Fix broken link to Open vSwitch installation instructions  https://review.openstack.org/60369211:36
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openstackgerritSlawek Kaplonski proposed openstack/neutron master: Fix connection between 2 dvr routers  https://review.openstack.org/59756712:04
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openstackgerritSlawek Kaplonski proposed openstack/neutron-tempest-plugin master: Add connectivity test via 2 routers and tenant networks  https://review.openstack.org/59867613:13
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openstackgerritBrian Haley proposed openstack/neutron-lib master: Fix port_range_max attribute definition  https://review.openstack.org/60377513:25
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openstackgerritSlawek Kaplonski proposed openstack/neutron master: Remove deprecated 'external_network_bridge' option  https://review.openstack.org/56736913:43
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openstackgerritSlawek Kaplonski proposed openstack/neutron master: Remove deprecated 'external_network_bridge' option  https://review.openstack.org/56736913:59
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mlavallehaleyb, slaweq, njohnston, hongbin, manjeets: I have a medical appointment. I'll be back in about 1h and half14:12
njohnstonHope it's all good news :-)14:12
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slaweqmlavalle: good luck :)14:23
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sri_hey folks quick question, I have created one external network with segmentation id 201, so if wanted to add new subnet to that network is that subnet also need to be in the same vlan id ?14:24
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sri_we might have diffrent subnetns in the same network is it possible to put segmentation_id on subnet leavel ? does it make any sense14:27
sri_haleyb, hi  if you have min ^^14:30
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openstackgerritManuel Buil proposed openstack/networking-odl master: [WIP] Use extras for ceilometer dependency  https://review.openstack.org/60262214:39
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sri_dsneddon, hi ^^14:42
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sri_if the first case is right (network has only one vlan-id) it is not recomended to use the same vlan-id in different subnets14:46
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sri_maybe I am trying to approach this problem completely wrong !!14:46
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haleybsri_: vlan id has always been a network thing to me, but maybe i don't understand your question14:53
sri_haleyb, my bad, if we wanted have multiple subnets in the same network, I think that's possible right ? but eatch subnet have diffrent vlan id14:56
sri_if that is case we need have diffrent network for eatch subnet right ?14:56
sri_haleyb, I think confused you again , (for floating ips) what I was asking if we have 10 diffrent subnets eatch with custom vlan id, we end up with 10 networks and 10 routes15:00
haleybyou can have multiple subnets on a network, i guess you'd have to draw a picture of what you're trying to do15:01
sri_haleyb, yes you're right, that's make more sense15:03
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* mlavalle is back15:14
openstackgerritSlawek Kaplonski proposed openstack/neutron-tempest-plugin master: WIP Migrate dvr multinode scenario to zuulv3 syntax  https://review.openstack.org/57879615:14
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openstackgerritLucas Alvares Gomes proposed openstack/networking-ovn master: Register OVN metadata as an agent  https://review.openstack.org/58395915:23
lucasagomesdalvarez, ^15:23
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dalvarezlucasagomes: on it15:32
lucasagomesdalvarez, sending a new patch fixing some nits15:32
lucasagomes1 sec :D15:33
openstackgerritLucas Alvares Gomes proposed openstack/networking-ovn master: Register OVN metadata as an agent  https://review.openstack.org/58395915:34
lucasagomesdalvarez, ^15:34
dsneddonsri_, You can only have one VLAN per network unless you are using Neutron routed networks. If you wanted to use routed segments with more than one segment per network, you need to make sure you have "segments" listed in the "service_plugins" setting in neutron.conf. However, you need to understand Neutron Routed Networks support (see15:35
dsneddonhttps://specs.openstack.org/openstack/neutron-specs/specs/newton/routed-networks.html)15:35
dalvarezlucasagomes: ohh i like it15:36
lucasagomesdalvarez, o/15:36
dalvarezlucasagomes: yeah the 'metadata-<id>' thingy is what i meant before15:36
lucasagomesdalvarez, tested locally works fine :D15:37
dalvarezcool!15:37
lucasagomesdalvarez, yeah ++15:37
dalvarez\o/15:37
openstackgerritNate Johnston proposed openstack/neutron master: Add tempest iptables_hybrid job for fedora  https://review.openstack.org/60053015:40
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sri_dsneddon, ack looking into it. thanks :)15:42
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dalvarezokok15:46
dalvarezlucasagomes: otherwiseguy ping :)15:46
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lucasagomesdalvarez, pong15:46
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dalvarezlucasagomes: otherwiseguy i was thinking that if we get metadata here this way we won't be able to tell if the metadata agent is not meant to run in a node or it's certainly dead15:47
lucasagomesdalvarez, this way being using the OVN Chassis table in sb db ?15:48
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dalvarezlucasagomes: yes15:50
dalvarezlucasagomes: otherwiseguy we dont have a way in ovn like in ml2ovs to tell which nodes should host certain agents15:50
lucasagomesdalvarez, but what would be the alternative ? RPC ?15:50
dalvarezlucasagomes: no, ovsdb is fine, that'd be just the channel15:50
dalvarezi mean in ml2ovs l3 agent won't show as 'dead' in compute nodes right?15:51
dalvarezbut for our case i'd say that we'd be showing metadata agent as 'dead' in controllers15:51
dalvarezwhile it's not true as it shouldn't be there so it's technically not dead15:51
dalvarezor perhaps im getting confused :D15:51
* lucasagomes thinks15:52
lucasagomesdalvarez, not sure it will show as dead, the metadata agent will continue to get updates from the south db for every SB_Global table changes right ?15:53
lucasagomeswhich makes it update the Chassis table15:53
lucasagomesbased on that, the agent list command will show it as alive15:53
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lucasagomesunless I'm missing something15:53
dalvarezlucasagomes: it won't update the chassis table for the controllers15:54
dalvarezlucasagomes: cause it is not running there15:54
dalvarezit only runs on computes15:54
lucasagomesright15:54
dalvarezso there it'll be shown as 'dead'15:55
lucasagomesdalvarez, but in that case it probably won't even be listed15:55
dalvarezno?15:55
dalvarezlucasagomes: yeah that'd be ideal15:55
dalvarezlucasagomes: im wondering how that'll happen15:55
dalvarezotherwiseguy: ^  perhaps it happens and that's it :P15:55
lucasagomescause in order to be listed the metadata agent needs to write its id in the Chassis table as well15:55
lucasagomesdalvarez, external_ids        : {... "neutron:ovn-metadata-id"="66674f32-7627-4cd3-84a2-4d0c96a9c091", "neutron:ovn-metadata-sb-cfg"="1267", ovn-bridge-mappings="public:br-ex"}15:56
dalvarezlucasagomes: right but... is that enough for not showing up?15:56
lucasagomesif it doesn't write to the chassis table it won't be listed in the "agent list" command15:56
dalvarezokok15:56
lucasagomesdalvarez, maybe not15:56
dalvarezthat's perfect :)15:56
lucasagomesidk15:56
otherwiseguydalvarez, I'll have to look at the code more carefully to know, but we shouldn't register a metadata agent if we don't have one. :p15:56
lucasagomesif it does need to show up we will need to rethink how we do it15:56
dalvareznono15:57
dalvarezit doesnt need to show up IMO15:57
dalvarezi was concerned in case it would show up15:57
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lucasagomesdalvarez, should be grand then15:57
dalvarezotherwiseguy: registering a metadata agent means that those ext ids won't be present in the chassis table?15:57
dalvarezcool!15:57
dalvarezsorry for messing then :D15:57
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sri_thanks dsneddon that is exactly what i was looking for :)16:40
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openstackgerritMunish proposed openstack/neutron-specs master: Introduce port mirroring for sriov-vf  https://review.openstack.org/57447717:27
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openstackgerritMunish proposed openstack/neutron-specs master: Introduce port mirroring for sriov-vf  https://review.openstack.org/57447717:50
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openstackgerritLujin Luo proposed openstack/neutron master: Integration of (Distributed) Port Binding OVO  https://review.openstack.org/54420618:43
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mnaseri've been stuck on this for a while19:17
mnaserit looks like with port_security_enabled=false, vlan tagged packets are being dropped?19:17
mnaser(on a normal port, not a trunk port)19:18
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openstackgerritNate Johnston proposed openstack/neutron master: Use OVO in neutron/ipam/subnet_alloc.py  https://review.openstack.org/57905319:58
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mlavallehaleyb: left you a comment in https://bugs.launchpad.net/neutron/+bug/179320720:03
openstackLaunchpad bug 1793207 in neutron "external_gateway_info enable_snat attribute should be owner-modifiable" [Low,In progress] - Assigned to Brian Haley (brian-haley)20:03
haleybmlavalle: ack, they would be the only ones that know, thanks!20:09
mlavallehaleyb: in principle I agree with you. Let's just make sure we are not missing something20:11
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haleyback20:20
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openstackgerritMerged openstack/neutron master: Fix IPv6 prefix delegation issue on agent restart  https://review.openstack.org/59771020:39
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tzumainnhi! I have a question about how the dns_nameserver property is supposed to work with subnets - if it's set, how is that value actually used in a deployed instance?21:04
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openstackgerritNate Johnston proposed openstack/neutron master: Add method to get all ports that are not routers  https://review.openstack.org/59270121:05
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openstackgerritHarald JensÃ¥s proposed openstack/neutron master: Allow update request with current segment_id  https://review.openstack.org/60392121:47
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hjensastzumainn: it depends on the image used to deploy the instance.21:52
hjensastzumainn: the dns_nameservers specified will be in the dhcp opts in the dhcp offer.21:52
amotokimlavalle: haleyb: I am aware of the wishlist bug on external_gateway_info enable_snat. thanks for raising it. I am trying to refresh my memory...21:53
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hjensastzumainn: then on the instance how cloud-init is configured may affect how it is used.21:54
tzumainnhjensas, ah, I see - thanks!21:54
hjensastzumainn: if you have multiple interfaces you may have some funny results.21:57
tzumainnhjensas, any suggestions on how to deal with that?21:57
hjensastzumainn: even if only one of the subnet have dns_nameservers configured neutron will put either default gateway or the ip of the namespace where neutron's dhcp agent dnsmasq is running. (this is configurable ...)21:58
hjensastzumainn: You can pass configuration to cloud-init to control which interface is preffered.21:59
tzumainnhjensas, this is something that's configuration in a neutron configuration file?21:59
tzumainner, configurable?22:00
hjensastzumainn: yes, if you are an operator you can control the behaviour globally via dnsmasq_local_resolv in dhcp agent config. (If memory serves me well.)22:03
tzumainnhjensas, I'll look into that - thanks much!22:07
hjensastzumainn: Try to set [0.0.0.0] as dns-server on the subnet which you don't want to announce any dns-servers. See: https://github.com/openstack/neutron/blob/master/neutron/agent/linux/dhcp.py#L940-L94822:15
mlavalleamotoki: THanks :-)22:22
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