Public bug reported: After vlan-transparency (VT) support has been added for OVN ML2 agent, we are creating some neutron tempest tests to cover this functionality.
Since linuxbridge (LB) agent supports VT, we intended to run those new tests on the master LB job, but they fail. We configured the LB agent with VT support. Devstack configures ml2 mechanism_drivers to openvswitch and linuxbridge, so we had to set it to LB only. https://review.opendev.org/c/openstack/neutron-tempest-plugin/+/765002/7/zuul.d/master_jobs.yaml New VT tests failed: 2020-12-09 13:05:37.184727 | controller | {0} neutron_tempest_plugin.scenario.test_vlan_transparency.VlanTransparencyTest.test_vlan_transparent_allowed_address_pairs [310.736639s] ... FAILED 2020-12-09 13:05:37.185480 | controller | Details: {'code': 500, 'created': '2020-12-09T13:05:35Z', 'message': 'Build of instance e0513133-3077-420e-b439-e0f61ff0fbad aborted: Failed to allocate the network(s), not rescheduling.'} https://zuul.opendev.org/t/openstack/build/d4f0a6a2a3824705886536e5d900a49e/log/job-output.txt#25261 nova-compute logs show errors creating instances: Dec 09 13:05:33.788419 ubuntu-focal-rax-iad-0022130345 nova-compute[73187]: ERROR nova.compute.manager [None req-c4f267db-cf04-4597-bbcc-e95ce67db222 tempest-VlanTransparencyTest-301394299 tempest-VlanTransparencyTest-301394299] [instance: e0513133-3077-420e-b439-e0f61ff0fbad] Instance failed to spawn: nova.exception.VirtualInterfaceCreateException: Virtual Interface creation failed https://zuul.opendev.org/t/openstack/build/d4f0a6a2a3824705886536e5d900a49e/log/controller/logs/screen-n-cpu.txt?severity=4 neutron-linuxbridge-agent shows some errors too: Dec 09 12:27:01.234687 ubuntu-focal-rax-iad-0022130345 neutron-linuxbridge-agent[66293]: ERROR neutron.agent.linux.utils [None req-ddbe0c50-3fb7-4834-9404-f6a8988be69b None None] Exit code: 255; Cmd: ['sysctl', '-w', 'net.ipv6.conf.vxlan-3.disable_ipv6=1']; Stdin: ; Stdout: ; Stderr: sysctl: cannot stat /proc/sys/net/ipv6/conf/vxlan-3/disable_ipv6: No such file or directory https://zuul.opendev.org/t/openstack/build/d4f0a6a2a3824705886536e5d900a49e/log/controller/logs/screen-q-agt.txt?severity=4 ** Affects: neutron Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1907548 Title: vlan-transparency not working with linuxbridge ml2 agent Status in neutron: New Bug description: After vlan-transparency (VT) support has been added for OVN ML2 agent, we are creating some neutron tempest tests to cover this functionality. Since linuxbridge (LB) agent supports VT, we intended to run those new tests on the master LB job, but they fail. We configured the LB agent with VT support. Devstack configures ml2 mechanism_drivers to openvswitch and linuxbridge, so we had to set it to LB only. https://review.opendev.org/c/openstack/neutron-tempest-plugin/+/765002/7/zuul.d/master_jobs.yaml New VT tests failed: 2020-12-09 13:05:37.184727 | controller | {0} neutron_tempest_plugin.scenario.test_vlan_transparency.VlanTransparencyTest.test_vlan_transparent_allowed_address_pairs [310.736639s] ... FAILED 2020-12-09 13:05:37.185480 | controller | Details: {'code': 500, 'created': '2020-12-09T13:05:35Z', 'message': 'Build of instance e0513133-3077-420e-b439-e0f61ff0fbad aborted: Failed to allocate the network(s), not rescheduling.'} https://zuul.opendev.org/t/openstack/build/d4f0a6a2a3824705886536e5d900a49e/log/job-output.txt#25261 nova-compute logs show errors creating instances: Dec 09 13:05:33.788419 ubuntu-focal-rax-iad-0022130345 nova-compute[73187]: ERROR nova.compute.manager [None req-c4f267db-cf04-4597-bbcc-e95ce67db222 tempest-VlanTransparencyTest-301394299 tempest-VlanTransparencyTest-301394299] [instance: e0513133-3077-420e-b439-e0f61ff0fbad] Instance failed to spawn: nova.exception.VirtualInterfaceCreateException: Virtual Interface creation failed https://zuul.opendev.org/t/openstack/build/d4f0a6a2a3824705886536e5d900a49e/log/controller/logs/screen-n-cpu.txt?severity=4 neutron-linuxbridge-agent shows some errors too: Dec 09 12:27:01.234687 ubuntu-focal-rax-iad-0022130345 neutron-linuxbridge-agent[66293]: ERROR neutron.agent.linux.utils [None req-ddbe0c50-3fb7-4834-9404-f6a8988be69b None None] Exit code: 255; Cmd: ['sysctl', '-w', 'net.ipv6.conf.vxlan-3.disable_ipv6=1']; Stdin: ; Stdout: ; Stderr: sysctl: cannot stat /proc/sys/net/ipv6/conf/vxlan-3/disable_ipv6: No such file or directory https://zuul.opendev.org/t/openstack/build/d4f0a6a2a3824705886536e5d900a49e/log/controller/logs/screen-q-agt.txt?severity=4 To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1907548/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
