Friday, 2015-01-09

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openstackgerritOpenStack Proposal Bot proposed openstack/neutron: Updated from global requirements  https://review.openstack.org/14566800:13
openstackgerritOpenStack Proposal Bot proposed openstack/neutron-fwaas: Updated from global requirements  https://review.openstack.org/14566900:14
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watanabe_isaoGood morning to all.:)00:21
openstackgerritMerged openstack/neutron-vpnaas: Updated from global requirements  https://review.openstack.org/14567100:22
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openstackgerritSwaminathan Vasudevan proposed openstack/neutron: Validate legacy router services before migration  https://review.openstack.org/12327300:28
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openstackgerritArmando Migliaccio proposed openstack/neutron: Move main entry point out of agent.py  https://review.openstack.org/14597900:31
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openstackgerritMichael Smith proposed openstack/neutron: This patch will be used to compare dvr vs full neturon runs  https://review.openstack.org/14189700:56
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openstackgerritArmando Migliaccio proposed openstack/neutron: Move main entry point out of agent.py  https://review.openstack.org/14597901:19
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virtuallynathan_How does addressing work with SR-IOV in neutron?01:43
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openstackgerritArmando Migliaccio proposed openstack/neutron: Limit changing permissions to tox env directory only  https://review.openstack.org/14599502:06
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openstackgerritYushiro FURUKAWA proposed openstack/neutron: Bug-Fix for can not control policy using policy.json  https://review.openstack.org/14599802:37
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openstackgerritLi Yingjun proposed openstack/python-neutronclient: Allow to specify IP address of floating ip  https://review.openstack.org/14599902:39
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openstackgerritArmando Migliaccio proposed openstack/neutron: Limit changing permissions to tox env directory only  https://review.openstack.org/14599502:51
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openstackgerritNeo proposed openstack/neutron: Fix IPv6 Subnet Slaac Check  https://review.openstack.org/14439903:05
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openstackgerritNeo proposed openstack/neutron: Fix IPv6 Subnet Slaac Check  https://review.openstack.org/14439903:16
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openstackgerritArmando Migliaccio proposed openstack/neutron: Break out config and entry point out of l3/agent file  https://review.openstack.org/14597903:26
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openstackgerritArmando Migliaccio proposed openstack/neutron: Limit permission change  https://review.openstack.org/14599503:28
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openstackgerritNeo proposed openstack/neutron: Remove DBDuplicateEntry columns check  https://review.openstack.org/13417603:42
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openstackgerritAmandeep proposed openstack/python-neutronclient: Updated "neutron help port-update" info  https://review.openstack.org/14569803:56
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openstackgerritVivekanandan Narasimhan proposed openstack/neutron: VLAN support for DVR  https://review.openstack.org/12988404:05
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openstackgerritZhiyuan Cai proposed openstack/neutron: Remove duplicate keys in dictionary  https://review.openstack.org/14543504:08
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openstackgerritwatanabe isao proposed openstack/neutron: Bug fix: active validate check  https://review.openstack.org/14566005:06
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openstackgerritNeo proposed openstack/neutron: Fix IPv6 Subnet Slaac Check  https://review.openstack.org/14439905:22
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openstackgerritAbhishek Talwar proposed openstack/python-neutronclient: Unclear message deleting default security group  https://review.openstack.org/14543605:26
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openstackgerritNeo proposed openstack/neutron: Fix IPv6 Subnet Slaac Check  https://review.openstack.org/14439905:31
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trinathsGood Morning All :)05:44
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openstackgerritOpenStack Proposal Bot proposed openstack/neutron: Imported Translations from Transifex  https://review.openstack.org/14513606:10
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openstackgerritXu Han Peng proposed openstack/neutron: Support Extra DHCP Options for IPv4 and IPv6  https://review.openstack.org/13671306:27
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openstackgerritArmando Migliaccio proposed openstack/neutron: DHCP agent restructuring  https://review.openstack.org/14602406:47
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eliqiaohi all, does anyone know how to debug rootwrap error ? such as :06:51
eliqiaoERROR neutron.agent.linux.ovsdb_monitor [-] Error received from ovsdb monitor: /usr/bin/neutron-rootwrap: Unauthorized command: ovsdb-client monitor Interface name,ofport --format=json (no filter matched)06:51
openstackgerrityalei wang proposed openstack/neutron: Add the rebinding chance in _bind_port_if_needed  https://review.openstack.org/14104406:51
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openstackgerritwatanabe isao proposed openstack/neutron: A cleanup of dhcp_agent_scheduler.py  https://review.openstack.org/14379508:55
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openstackgerritAbhishek Talwar proposed openstack/python-neutronclient: Unclear message deleting default security group  https://review.openstack.org/14543609:24
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jerryzSridharG: ping09:35
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SridharGjerryz: pong09:42
openstackgerritAman Kumar proposed openstack/neutron: Some code improvisation in type_vxlan.py and type_gre.py files.  https://review.openstack.org/14604309:43
jerryzSridharG: i am still struggling with some ipv6 problems. do you have time to confirm with me if my configuration is correct09:43
lukasa_workOut of interest, does anyone know of any network plugins that change the MAC address of tap devices?09:44
jerryzSridharG: https://bugs.launchpad.net/neutron/+bug/140785909:44
jerryzthis one in particular09:44
SridharGjerryz: looking..09:44
jerryzScridharG: the vm can't get default routes for ipv6, although radvd daemon is there and the vm can get ipv6 address auto configuration09:45
SridharGjerryz: If the VM is able to get the IPv6 GUA using SLAAC, it should be able to assign the default route pointing to the LLA of the Router..09:46
jerryzSridharG: by LLA you mean gateway_ip?09:47
SridharGjerryz: I meant Link Local Address.09:47
SridharGjerryz: fe80::*09:48
jerryzSridharG: oh, then it is there09:48
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SridharGjerryz: yes, you have it :-)09:48
SridharGthe default route is present on the VM - fe80::f816:3eff:fe0c:185109:48
jerryzSrdharG: then how could the gateway in qr- namespace forward the traffic to outside internet09:48
SridharGjerryz: in your configuration you do not seem to have an external network configured. So, you will have to configure an external IPv6 network which will provide you access to Internet.09:49
jerryzSrdharG: i have a  real physical external gateway09:50
jerryzSridharG: that is ::109:50
SridharGjerryz: The output of "ip netns exec qrouter-6066faaa-0e35-4e7b-8988-7337c493bad7 ifconfig"09:50
jerryzSridharG: sorry, i already got the original environment torn down. but i reproduced another one.09:51
SridharGdoes not show "qg-xyz" (i.e., gateway interface). So I guess you did not associate an external network to the Neutron router (i.e., neutron router-gateway-set <router-id> <external-subnet-id>)09:51
SridharGplease check if you have an external network and associate it to the Neutron router for internet access09:53
jerryzSridharG: if the subnet is 2001:470:bb86:0001::/64, i just want all vms' next hop is 2001:470:bb86:0001::109:53
jerryzSridharG: what network should i assign to the external net?09:55
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SridharGjerryz: aah ok. Just noticed that your subnet has a host route pointing to "host_routes | {"destination": "2000::/3", "nexthop": "2001:470:bb86:0001::1"}"09:56
SridharGjerryz: So, I hope your requirement is to use "2001:470:bb86:0001::1" as the next hop to reach the subnet 2000::309:56
SridharGjerryz: is this correct?09:56
jerryzSridharG: yes09:57
jerryzSridharG: 2000::/3 is the public internet09:57
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SridharGjerryz: looks like you hit a bug. I don't see this host route pushed to the VM.09:58
SridharGThe VM is configured with a default route pointing to the LLA of the Neutron Router.09:58
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openstackgerritRomil Gupta proposed openstack/neutron: Some code improvisation in type_vxlan.py and type_gre.py files  https://review.openstack.org/14604309:59
SridharGjerryz: I'll have to explore how the host routes are pushed to VMs in a SLAAC use-case (i.e., without DHCPv6 server)10:00
jerryzSridharG: what mode uses DHCPv6 server? stateful and stateless?10:02
SridharGjerryz: yes10:03
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SridharGjerryz: I'm not sure if the configuration is valid. Because you created a SLAAC subnet (i.e., without DHCPv6 server) and are interested in pushing a host route.10:04
jerryzSridharG: but it will needs vm to have a dhclient to work with it?10:04
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SridharGjerryz: yes you are right.10:07
SridharGjerryz: IMO you have two options10:07
SridharGjerryz: Option1: Create a dhcpv6-statefull/stateless subnet and give a try once.10:07
SridharGjerryz: option2: Create an external network in the subnet 2000::/64 and associate it to the neutron router.10:08
jerryzSridharG: you mean 2000::/3 right?10:09
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SridharGjerryz: is the netmask 3? or 64? I was thinking that the Gateway-IP was 2000::3/6410:09
jerryzSridharG: i think i will give option2 a shot first because my user image doesn't have dhclient configuring ipv6 on boot.10:10
SridharGjerryz: I dont think neutron currently supports subnets where netmask is != 6410:10
SridharGjerryz: ok10:11
jerryzSridharG: gateway ip is 2001:470:bb86:0001::110:11
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jerryzSridharG: that is my physical router's ip10:11
SridharGjerryz: can you tell me the CIDR for that network?10:11
jerryzSridharG: it will forward packets to the outside10:11
jerryz2001:470:bb86:0001::/6410:12
SridharGjerryz: cool this is what I was looking for.10:12
jerryzSridharG: it is my provider network10:13
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SridharGjerry: So are you saying that your VMs are directly associated to the provider network and the gateway_ip in the provider network is "2001:470:bb86:0001::1"?10:16
jerryzSridharG: that is right10:17
SridharGIf this is the case, you will have to simply update the subnet gateway_ip to the Link Local Address of the physical gateway (i.e., 2001:470:bb86:0001::1)10:17
SridharGjerryz: please get the LLA of the physical Router in the provider network and use neutron subnet-update to update the gateway_ip to LLA.10:17
jerryzSridharG: will do. thanks. so that address won't be used by l3 router namespace when doing router-interface-add ?10:19
SridharGjerryz: If its a provider network, you will not use the Neutron Router. AFAIK, you need not create any neutron router at all.10:20
SridharGjerryz: please have a look at the following. http://specs.openstack.org/openstack/neutron-specs/specs/juno/ipv6-radvd-ra.html#rest-api-impact10:21
jerryzSridharG: initially, i used 2001:470:bb86:0001::1 as the gateway_ip but it is assigned to the qrouter-XXX interface hence conflicting with my physical router10:21
SridharGjerryz: it will help you on how to configure an IPv6 subnet depending on your use-case.10:21
jerryzSridharG: but only after i add router-interface , would radvd be spawned10:21
SridharGjerryz: When you are using a provider network and an external Router is assigning IPv6 SLAAC addresses, you will not need any neutron router.10:22
SridharGjerryz: VMs after receiving the Router Advts from the external Router will configure the default route pointing to the LLA of the external router.10:22
SridharGjerryz: you dont need radvd in your setup as you will be using an external Physical Router (2001:470:bb86:0001::1)10:23
jerryzSridharG: but that router will have to have RA function10:23
SridharGjerryz: an IPv6 Router which is acting as the gateway will be serving the Router Advertisements. Please check the configuration on your physical router.10:24
jerryzSridharG: without radvd spawned, my vm didn't get slaac address10:24
SridharGjerryz: I'm confused. You mentioned that you are using a provider network and you have a physical router (2001:470:bb86:0001::1) which will act as a Gateway for the VMs.10:25
jerryzSridharG: yes. could it be that router didn't sent out ra10:26
SridharGjerryz: If this is true, AFAIK the external router is supposed to serve the Router Advertisements.10:26
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SridharGjerryz: since you are telling that its a physical router (which is beyond the control of Neutron), you will have to look into the configuration on that router to enable Router Advertisements.10:26
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SridharGjerryz: for me it looks like your use-case is "ipv6-ra-mode: None, ipv6-address-mode:SLAAC" as mentioned in the http://specs.openstack.org/openstack/neutron-specs/specs/juno/ipv6-radvd-ra.html#rest-api-impact10:27
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SridharGjerryz: infact if you tried the steps you mentioned to me on the Latest neutron code, it would have returned you an early warning. The associated patch got merged two days back - https://review.openstack.org/#/c/136733/10:29
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jerryzSridharG: ok. will look into it.10:33
SridharGjerryz: Sure, I'm stepping out. We shall sync up later. Let me know how it goes at your end.10:33
jerryzSridharG: thanks! have a good weekend10:33
SridharGjerryz: your'e welcome. Have a good weekend.10:34
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openstackgerritAmandeep proposed openstack/python-neutronclient: "neutron help router-update" help info updated  https://review.openstack.org/14605410:53
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openstackgerritAmandeep proposed openstack/python-neutronclient: updated "neutron help router-update" info  https://review.openstack.org/14605411:13
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openstackgerritRalf Haferkamp proposed openstack/neutron: Register FWaaS resource to quota engine  https://review.openstack.org/13912411:35
openstackgerritRalf Haferkamp proposed openstack/neutron-fwaas: Adjust fwaas unit tests to work with quotas enabled  https://review.openstack.org/14106411:39
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enikanorov__ihrachyshka: hi12:52
ihrachyshkaenikanorov__, ji12:52
ihrachyshkahi12:52
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enikanorov__ihrachyshka: i'm now looking at gate failures with public network connectivity checks. It happens quite often and caused by dhcp agent slowness (it can't spawn dnsmasq in time)12:53
enikanorov__which is caused by strange behavior with locks used in dhcp agent12:53
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enikanorov__i look at logs and see that some greenthread tries to acquire the lock and hang for ~1 minute while other threads acquire and release the lock12:54
enikanorov__ihrachyshka: i see your commits in  neutron/openstack/common/lockutils.py12:54
enikanorov__do you remember what kind of changes you made?12:54
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ihrachyshkaenikanorov__, well, those were just syncs to facilitate new oslo libs adoption12:55
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ihrachyshkaenikanorov__, I see there is a commit from oslo included named "942e1aa Use file locks by default again"12:56
enikanorov__ihrachyshka: i see. unfortunately i can't tell if this affects the behavior in any way. What i see is that right now locking is not fair, waiters are not queued12:58
enikanorov__looks like they randomly chosen12:59
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ihrachyshkaenikanorov__, you can try #openstack-oslo to see whether there is anyone from oslo.concurrency there12:59
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enikanorov__ihrachyshka: thanks12:59
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openstackgerritMiguel Angel Ajo proposed openstack/neutron: Extending the testing documentation  https://review.openstack.org/14607513:12
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openstackgerritMiguel Angel Ajo proposed openstack/neutron: More changes, linked to the previous ones.  https://review.openstack.org/14607713:15
ajooops, sorry for the noise ^   ;-)13:15
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openstackgerritMiguel Angel Ajo proposed openstack/neutron: More changes, linked to the previous ones.  https://review.openstack.org/14607713:19
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openstackgerritRomil Gupta proposed openstack/neutron: Code improvement in type_vxlan.py and type_gre.py files  https://review.openstack.org/14604314:21
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openstackgerritSimona Iuliana Toader proposed openstack/neutron: Fixes Hyper-V 2008 R2 agent VLAN Settings issue  https://review.openstack.org/12047014:23
openstackgerritRomil Gupta proposed openstack/neutron: Code improvement in type_vxlan.py and type_gre.py files  https://review.openstack.org/14604314:24
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matrohonijw: ping14:53
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openstackgerritRalf Haferkamp proposed openstack/neutron: Fix unittest with Python 2.7.9  https://review.openstack.org/14611114:57
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openstackgerritMaru Newby proposed openstack/neutron: Allow the gate-hook script to install only deps  https://review.openstack.org/14611315:16
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marunHenryG: ^^ :)15:17
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HenryGmarun: looking15:19
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openstackgerritRajeev Grover proposed openstack/neutron: HA for DVR - Neutron Server side WIP code  https://review.openstack.org/14316915:20
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salv-orlandomestery, armax: there is a proposal for making py33 job voting in neutron? https://review.openstack.org/#/c/145430/315:33
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salv-orlandodid we altready discuss this?15:33
salv-orlandoI think not, but it might just be my memory failing me15:33
mesterysalv-orlando: No, lets -1 one that and discuss at meeting on Tuesday?15:33
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mesteryarmax: ^^^15:34
salv-orlandomestery, ack15:34
mesterysalv-orlando: Cool, thanks!15:34
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openstackgerritRussell Bryant proposed openstack/neutron: Provide doc string pointers for the dhcp agent rpc api  https://review.openstack.org/14256416:21
openstackgerritRussell Bryant proposed openstack/neutron: Scope metadata rpc api using a messaging namespace  https://review.openstack.org/14289816:21
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openstackgerritNuman Siddique proposed openstack/neutron: Support vnic_type, vif_type filters in ml2 port list  https://review.openstack.org/14287017:02
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openstackgerritArmando Migliaccio proposed openstack/neutron: Fix outstanding failures with Neutron API job  https://review.openstack.org/14538717:17
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carl_baldwinmlavalle: ping17:27
mlavallecarl_baldwin: pong17:28
carl_baldwinmlavalle: You had mentioned that you were going to work on namespace stuff in the agent.17:28
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mlavallecarl_baldwin: yeap.... I saw you kind of started with namespaces for fip yesterday17:29
carl_baldwinmlavalle: My refactoring has sort of led be to that area by necessity.17:29
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carl_baldwinmlavalle: I’m wondering what progress (if any) you’ve been able to make.17:29
carl_baldwinMy FipNamespace work scope is growing.  I’m wondering how I can start breaking it down to more bite-size pieces.17:30
mlavallecarl_baldwin: that's ok.... No progress on that front..... I am planning to start on that today and work on it over the weekend...If you are ready to start tackling that, go ahead and I'll find myself another area17:31
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carl_baldwinI wonder if I could get something started along with you and let you make progress over the week-end.17:31
mlavallecarl_baldwin: that sounds perfect17:32
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openstackgerritArmando Migliaccio proposed openstack/neutron-vpnaas: Adapt VPN agent to use new main for L3 Agent  https://review.openstack.org/14614417:32
carl_baldwinI had started a Namespace class back in October.  I may resurrect that and see what I can do with it.17:33
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carl_baldwinmlavalle: This code is so tangled.  It is so hard to know where to start.  Everything is dependent on everything else.  No decent encapsulation anywhere.17:34
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mlavallecarl_baldwin: yeap..... we'll get there, though :-)17:34
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carl_baldwinmlavalle: I know.  I just wish it were clear how to divide this work up and better utilize you and others willing and able to help.  The level of entanglement makes it hard though.17:36
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mlavallecarl_baldwin: actually at the beginning of the week, I thought the approach was to move the namespaces code to that RouterInfo class... and then I realized that is so tangled, that the right approach is to start creating namespace class, like you did last night17:37
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carl_baldwinI think I’m going to add another patch to create a base Namespace class and move this one to depend on that one.17:38
carl_baldwinmlavalle: There are some basic namespace operation which hopefully can be encapsulated without too much dependency on the rest of the tangled web.17:38
mlavallecarl_baldwin: yeah, sounds good..... I think we need a base class and then child classes, to handle the different namespaces17:39
carl_baldwinmlavalle: agreed.17:39
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mlavallethe thing is not all the namespaces calls right now occur in the context of processing a router... some of the calls are more in the context of the agent itself... that is why it is a sounder approach to encapsulate from the ns perspective17:40
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mlavallecarl_baldwin: if you like, while you work on the namespace parent class, I'll catch up with the ha / dvr router patchset.... I saw you push something at 4 am.17:43
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carl_baldwinmlavalle: I wasn’t up at 4 am.  Which patch?17:45
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mlavallecarl_baldwin: no... It is Assaf's comments that posted at 4am my time.... https://review.openstack.org/#/c/14373317:46
carl_baldwinmlavalle: Ah, that makes sense.17:47
openstackgerritArmando Migliaccio proposed openstack/neutron: DHCP agent restructuring  https://review.openstack.org/14602417:47
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openstackgerritArmando Migliaccio proposed openstack/neutron: DHCP agent restructuring  https://review.openstack.org/14602417:52
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openstackgerritArmando Migliaccio proposed openstack/neutron: DHCP agent restructuring  https://review.openstack.org/14602417:54
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openstackgerritArmando Migliaccio proposed openstack/neutron: DHCP agent restructuring  https://review.openstack.org/14602417:57
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stevegmarios,18:12
stevegwhoops18:12
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openstackgerritArmando Migliaccio proposed openstack/neutron: DHCP agent restructuring  https://review.openstack.org/14602418:13
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openstackgerritArmando Migliaccio proposed openstack/neutron: Move utils scripts to cmd module  https://review.openstack.org/14615118:18
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openstackgerritOpenStack Proposal Bot proposed openstack/neutron: Updated from global requirements  https://review.openstack.org/14566818:29
openstackgerritOpenStack Proposal Bot proposed openstack/neutron-fwaas: Updated from global requirements  https://review.openstack.org/14566918:29
openstackgerritOpenStack Proposal Bot proposed openstack/neutron-vpnaas: Updated from global requirements  https://review.openstack.org/14615818:30
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openstackgerritOpenStack Proposal Bot proposed openstack/python-neutronclient: Updated from global requirements  https://review.openstack.org/14616718:35
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alexpilottikevinbenton: hi18:55
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-openstackstatus- NOTICE: paste.openstack.org is going offline for a database migration (duration: ~2 minutes)18:58
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openstackgerritBaodong (Robert) Li proposed openstack/neutron: A conceptual implementation of neutron DVR  https://review.openstack.org/14391719:12
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pc_mAnyone tried OoO?19:19
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sc68calpc_m: I only got as far as Ironic ;)19:22
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sc68calI was hoping to get OoO running for dev envs, but then I changed jobs, no more lab equipment :)19:22
sc68caljust my trust vagrant_devstack project :)19:23
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pc_mI've got a private cloud with two VMs in it (which I want to run devstack on each).19:23
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sc68calCool, would you do two all-in-ones or a single cluster19:24
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pc_mI created a network, and booted the VMs with a NIC for mgmt and a NIC for this "public" network for my test.19:24
acctorhello, I was wondering if someone could help me understand the relationship between the neutron ml2 mech plugins and the nova libvirt vif driver plugin?19:24
pc_msc68cal: When I stack, I have it use br-ex and I manually added eth1 into br-ex.19:25
sc68calpc_m: yeah - that is not currently part of devstack19:25
pc_msc68cal: The issue I have, is that I cannot ping across that network.19:25
sc68calit should be though19:25
CaguaxHi, I am using cisco_nexus mechanism, but I am getting the following in the neutron/server.log, NexusMissingRequiredFields: Missing required field(s) to configure nexus switch: vlan_id. Anyone seeing this ?19:26
sc68calpc_m: what is the public network set up as, vlan, gre,etc?19:26
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sc68calpc_m: or flat19:26
pc_mWell, I did it through horizon (that's how I've been accessing this private cloud).19:26
pc_mI created the network, didn't give it a GW, and didn't turn on DHCP.19:27
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sc68calon the "undercloud" (your cloud provider)19:27
sc68cal?19:27
sc68calor the cloud inside the vms you launched19:28
pc_mI guess undercloud19:28
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sc68calcan the two machines you provisioned on the undercloud ping eachother?19:28
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pc_mSo in the private cloud. I'm a lowly tenant. I created a network and subnet (in addition to the admin network), and spun up the two VMs (which will represent my DevStack hosts).19:29
pc_mI did add an IP and could ping between the two VMs19:29
sc68calgotcha19:29
pc_mI removed it, and then stacked, but I can no longer ping between19:29
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sc68calremoved what?19:30
pc_m(the br-ex which has an IP, or the router1 public I/F on that devstack node).19:30
pc_mthe IP from eth1.19:30
pc_mSo I set an IP on each eth1 and checked that I could ping between the two.19:30
sc68calpc_m: http://docs.openstack.org/developer/devstack/guides/neutron.html19:31
pc_mThen I removed the IP and stacked with a config that has OVS_PHYSICAL_BRIDGE=br-ex, and PUBLIC_INTERFACE=eth119:31
sc68caltake a look at the NIC part of that doc19:31
sc68calI was giving over a whole interface and VLAN on bare metal boxes for vm traffic19:32
sc68calseparate vlan and interface for management19:32
pc_mYeah that is what I'm doing, although I didn't add /etc/network/interfaces setup for eth119:32
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pc_m(what is on that page)19:33
sc68calyeah I think in my vagrant devstack script I was removing the IP from the eth1 interface19:33
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pc_mEth0 is the admin net, eth1 is for devstack use (as a "public" network).19:33
sc68calright19:34
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sc68calpc_m: https://github.com/sc68cal/chef-devstack/blob/master/recipes/default.rb#L5019:34
pc_mI can add the iface eth1 inet manual lines to interfaces file19:34
sc68calI'd add eth2 to the bridge then delete the IP from the eht2 interface19:34
sc68cal(I don't know if that's really the right way to do it, but it works)19:35
pc_mSo I think that is what I did (only with eth1)19:35
pc_mIOW, I had eth0 with a management IP on it. eth1 with a IP to test connectivity19:35
pc_mThen, I removed the IP from eth1, and stacked.19:35
sc68calgotcha19:36
pc_m(and added eth1 to br-ex)19:36
sc68calsounds right19:36
pc_mIt is up, but I don't have connectivity across eth119:36
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pc_mbr-ex has an IP, and I cannot ping that from the other node.19:36
sc68calcan you run tcpdump on both vms and see if it's getting dropped after being sent by one side?19:37
sc68callike it leaves vm1 but never gets to vm2?19:37
sc68calgot a feeling it could be something on the undercloud network19:37
sc68calmaybe an antispoof?19:37
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pc_mThat's the issue, I run tcpdump on br-ex and eth1 and I don't see any output at all (not sure why not).19:38
pc_mI would have thought I would have seen the packets going out.19:39
pc_mCould it be something with security groups? I admit, I'm not really familiar with the neutron security groups (I was using nova-network for the longest time, as it was easier).19:40
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enikanorov__mestery: hi19:42
mesteryenikanorov__: Yo!19:42
pc_msc68cal: Odd. I unstacked and restacked one side. While it is stacking, From the other end (East), I tried to ping the IP that will be on the br-ex of that node (West).19:43
pc_mOn East, I see ARP requests going out now (didn't see that when the two were stacked)19:43
pc_mno arp response yes from West (which is stacking).19:44
sc68calhmm19:45
sc68caldo you see the arp request from east on west?19:45
pc_mOK, so West is up now.  Here's what I have...19:46
pc_mtcpdump -vv -i eth1 on both sides.19:46
pc_mFrom East, pinging West's br-ex IP and vice versa19:46
pc_mtcpdump on each side is showing arp request.19:47
pc_mneither side is showing the incoming request, nor response.19:47
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pc_mno. East has... ARP request who has 172.32.1.20 tell 172.32.1019:49
pc_mWest has ARP request who has 172.32.1.10 tell 172.32.1.2019:50
pc_mEast was tell 172.32.1.1019:50
pc_mSo each side is sending out the ARP request, but I don't see it coming in on the other side.19:51
enikanorov__mestery: i've apparently found the reason for lots of gate failures of neutron jobs19:51
mesteryenikanorov__: You're my new hero :) What is it?19:52
sc68calpc_m: which means something is blocking it, I guess19:52
enikanorov__mestery: i appeared that it happens due to dhcp agent is not able to spawn dnsmasq on time in the new network. so VM sends DHCPDISCOVER while dnsmasq is not there yet19:52
sc68calpc_m: do you think the network that the undercloud has is blocking it?19:52
enikanorov__and dhcp is slow just because it locks many operations on one common semaphore19:53
mesteryenikanorov__: Yikes! Any idea what caused the recent spike?19:53
pc_msc68cal: It must be, but I don't understand why (as I could ping before, when I set an IP on eth1 and pinged, before stacking).19:53
enikanorov__mestery: so according to logs, in some cases it takes up to 1 minute to spawn dnsmasq after the time when 1st port on network is created19:53
sc68calpc_m: are the IPs you assigned part of an ip block on the undercloud network?19:54
enikanorov__mestery: I would be interested to know that as well. could it be that amount of parallelism was increased?19:54
pc_msc68cal: Well, on that network, called "provider", I created a subnet with 172.32.1.0/24.19:54
pc_mIt had DHCP enabled, but I turned that off, then I created the VMs using that network.19:56
pc_mHorizon DOES show an IP on that network for each VM. 172.32.1.5 on east and 172.32.1.6 on west.19:57
* pc_m in the Instances screen19:57
pc_mBut, the Subnet overview shows the subnet as DHCP enable=NO19:58
pc_mIP allocation pool is 172.32.1.1 to 172.32.1.25419:58
mesteryenikanorov__: We should check with the broader team if any changes have recently gone into the DHCP agent which could have triggered this. /cc carl_baldwin armax19:59
* armax catching up19:59
enikanorov__mestery: i tried to check that, but apparently nothing major. locking also didn't checnge for quite long time20:00
mesteryenikanorov__: Interesting20:00
enikanorov__but underlying locking code did change sometimes late october 201420:00
armaxI haven’t seen major changes going in the DHCP agent for quite some time20:00
armaxmestery: is there s bugno around? or is this new?20:01
mesteryarmax: enikanorov__ has the bug # I think, it's the top neutron gate bug if I recall20:01
enikanorov__armax: https://bugs.launchpad.net/neutron/+bug/140329120:01
armaxenikanorov__: thanks20:02
enikanorov__in fact there are a bunch of bugs all about checking public network connectivity20:02
enikanorov__i guess they all describe the same problem.20:02
armaxthe annoying thing is that these issues all manifest the same way :(20:03
enikanorov__VM is not getting IP. the root cause is that dnsmasq spawns too late. Which is result of dhcp agent's greenthread being in wait for semaphore for too long20:03
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enikanorov__and looking at logs i see that semaphore don't behave in "fair" way, e.g. waiters are not queued, but rather randomly acquire semaphore20:05
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armaxenikanorov__: do you have a time period on a dhcp log?20:05
armaxenikanorov__: that you’ve been looking at?20:05
enikanorov__armax: what do you mean by 'time period'?20:05
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armaxenikanorov__: link to log with timestamp?20:06
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enikanorov__armax: yeah, give me a minute, I'll show an example20:06
armaxenikanorov__: tnx20:06
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enikanorov__armax: doh. apparently i've mistaken :( now rechecked few examples of those failures - everything spawned on time, dnsmasq accepts DHCPDISCOVER and sends DHCPOFFER, but console log of VM still says that it didn't get IP20:24
armaxenikanorov__: um…I’ll poke around20:24
enikanorov__i've really seen several similar cases when dnsmasq was spawned after a 40-50 secs after VM was spawned20:24
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enikanorov__http://logs.openstack.org/35/145535/3/check/check-tempest-dsvm-neutron-full/871ac39/logs/syslog.txt.gz#_Jan__7_19_04_3720:26
enikanorov__http://logs.openstack.org/35/145535/3/check/check-tempest-dsvm-neutron-full/871ac39/console.html#_2015-01-07_19_19_14_43120:26
enikanorov__http://logs.openstack.org/35/145535/3/check/check-tempest-dsvm-neutron-full/871ac39/logs/screen-q-dhcp.txt.gz#_2015-01-07_19_04_08_57520:26
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enikanorov__oh. looks like the answer was before my nose.20:31
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armaxenikanorov__: what do you mean?20:33
HenryGUnable to access pid file?20:34
HenryGWhy?20:34
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armaxHenryG: I have seen a patch around this area...20:35
enikanorov__armax: thinking aloud. I see lots of  "kernel:  iptables dropped:" messages after dnsmasq sent away DHCPOFFER20:36
enikanorov__armax: but that is normal, as far as I see20:36
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enikanorov__so in bad case DHCPOFFER doesn't reach VM for some reason20:36
enikanorov__which may mean that dhcp port was not properly wired, or VM port...20:37
armaxenikanorov__, HenryG: regarding the file access failure20:37
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armaxenikanorov__, HenryG: https://review.openstack.org/#/c/144977/ should take care of it20:38
armaxif I am not mistaken20:39
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enikanorov__armax, HenryG: but unable to access file is not an issue. network is new for dhcp agent, so it just going to create stuff.20:39
armaxenikanorov__: agreed20:39
HenryGenikanorov__: yes, I was just wondering why it was so messy20:40
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armaxenikanorov__: I gotta go now, but I’ll look into it20:45
enikanorov__armax: thanks20:46
enikanorov__another pair of eyes would be helpful20:46
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openstackgerritSwaminathan Vasudevan proposed openstack/neutron: Fix static strings with labels for DVR  https://review.openstack.org/14356820:47
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openstackgerritSwaminathan Vasudevan proposed openstack/neutron: Fix static strings with labels for DVR  https://review.openstack.org/14356820:52
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marunHenryG: Do you have any insight into how the gate communicates the target git branch through to devstack?20:54
HenryGmarun: sorry, no :(20:55
marunHenryG: np20:56
* marun goes to parse some logs20:56
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clarkbmarun: zuul puts change info into environment variables. Then devstack-gate clones everything based on that (look in setup_project in functions.sh there iirc)20:57
clarkbmarun: and finally devstack is setup to not clone anything (and error on clone) so it uses only what d-g gave it20:58
marunclarkb: yay for lurking, thank you for the fast response.20:58
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marunclarkb: I'm blundering through an attempt to install only neutron's dependencies - without using devstack-vm-gate, at least for now - and the missing piece was ensuring that I test the right thing.21:00
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marunclarkb: So I don't have to do everything - by the time we hit a hook the right branches have been checked out on the target vm?21:01
clarkbyes21:01
reeddoes this page still contain valid info? https://wiki.openstack.org/wiki/Atlas-LB21:01
marunclarkb: awesome sauce!21:01
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openstackgerritMerged openstack/neutron: Limit permission change  https://review.openstack.org/14599521:12
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openstackgerritSayaji Patil proposed openstack/neutron: Run only one instance of Nuage sync cycle at a time  https://review.openstack.org/13820721:21
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armaxenikanorov__: ping21:24
enikanorov__armax: pong21:24
armaxenikanorov__: I was looking at some of the logs21:24
armaxenikanorov__: as you identified some failures are caused by the vm not getting dhcp21:25
armaxenikanorov__: others are caused by the fip rules not working as they should21:25
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armaxenikanorov__: so far, nothing you don’t know already :)21:25
armaxbut, from a failure mode standpoint we have no way of distinguishing between the two21:26
enikanorov__what about fip rules? i thought that as well, but then I realized that everything was fine with fip nat rules, at least as far as i understand21:26
armaxenikanorov__: do you happen to know why tempest doesn’t test connectivity on the tenant network?21:26
enikanorov__armax: because tenant network is not directly reachable i guess21:27
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armaxenikanorov__: right, but we should be able to work around that21:27
enikanorov__armax: you mean use dhcp namespace to ping VM or something?21:28
armaxenikanorov__: it’s a bit nasty, but ya something like that21:28
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armaxenikanorov__: just thinking out loud, but it should give us a better characterization of the failures21:29
enikanorov__armax: it's problematic, because tempest not always run on the node where the rest of openstack is21:29
armaxenikanorov__: agreed21:29
enikanorov__but i agree it could help21:29
enikanorov__can you give an example of logs where the failure has been caused by L3 ?21:30
armaxenikanorov__: still digging21:30
armaxenikanorov__: we’re probably overloading what tempest can do anyway21:30
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armaxenikanorov__: all I can find right now is dhcp-induced failures21:45
armaxenikanorov__: :(21:45
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enikanorov__i see. well, may that's for the best, one fix will fix it all21:46
armaxenikanorov__: wishful thinking :)21:46
enikanorov__:)21:46
armaxenikanorov__: but ya…at least, if we can figure out where the regression has been caused as far as dhcp is concerned21:47
armaxenikanorov__: we should be able to cut down on the number of failures quite a bit21:47
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armaxenikanorov__: I am gonna look into this dhcp issue for now21:48
armaxenikanorov__: did you manage to learn more about it?21:48
enikanorov__armax: not yet, now it seems to me that everything is fine from dhcp agent's standpoint21:48
enikanorov__(despite my comment to the bug)21:48
armaxhttp://logs.openstack.org/22/144622/2/check/check-tempest-dsvm-neutron-full/f48188a/logs/testr_results.html.gz21:48
armaxthis is one21:49
armaxhttp://logs.openstack.org/50/144250/4/check/check-tempest-dsvm-neutron-full/3a46100/logs/testr_results.html.gz21:49
armaxanother21:49
armaxand another one:21:49
armaxhttp://logs.openstack.org/23/144923/1/check/check-tempest-dsvm-neutron-full/7cbe3b3/logs/testr_results.html.gz21:49
armaxall because of dhcp21:49
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enikanorov__armax: the same pattern. looking at syslog I see DHCPDISCOVER from VM and DHCPOFFER from dnsmasq, but latter apparently didn't reach the VM21:52
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openstackgerritMerged openstack/neutron: Skip adding ips from non dhcp enabled subnets to hosts file  https://review.openstack.org/14510221:55
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openstackgerritMerged openstack/neutron-vpnaas: Updated from global requirements  https://review.openstack.org/14615821:55
openstackgerritMerged openstack/neutron-fwaas: Updated from global requirements  https://review.openstack.org/14566921:56
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openstackgerritMerged openstack/neutron: Deal with PEP-0476 certificate chaining checking  https://review.openstack.org/14520821:58
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enikanorov__armax: by the way, while looking at l3 agent logs i noticed that qrouter namespaces are accumulated over time. Is that a default behavior now, not to remove router namespaces?22:07
armaxenikanorov__: you mean they don’t get deleted?22:07
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enikanorov__armax: correct22:08
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armaxenikanorov__: namespace deletion is disabled by default22:08
enikanorov__ah, ok22:08
armaxlook at the l3_agent.ini file22:08
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openstackgerritSayaji Patil proposed openstack/neutron: Delete old Nuage net-partition record from db when a new one is created  https://review.openstack.org/12453422:20
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openstackgerritSayaji Patil proposed openstack/neutron: Nuage Syncmanager needs external network info for sync  https://review.openstack.org/12388422:28
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openstackgerritMerged openstack/neutron: Remove SELECT FOR UPDATE from delete_network and delete_subnet  https://review.openstack.org/12245822:31
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openstackgerritKyle Mestery proposed openstack/neutron: Initial thin ML2 mechanism driver  https://review.openstack.org/14621722:32
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ijw__anyone up for beer this evening?22:55
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openstackgerritMerged openstack/neutron: Updated from global requirements  https://review.openstack.org/14566823:16
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