yahoo-eng-team team mailing list archive

[Yusuf Güngör <2023027@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Hi everyone, on a compute node restarting the openvswitch vswitchd
causing fip and qrouter netns ports deletion.

The deleted ports created again after l3 agent restart.

This behaviour causes the network outgage while the upgrade operation

Neutron-OVS logs and fip, qrouter netns interfaces before-after ovs-l3
agent restart operation attached to issue.

Environment Details:
 Openstack Version: Wallaby (cluster installed via kolla-ansible)
 OS Version: Ubuntu 20.04.2 LTS Hosts. (Kernel:5.4.0-90-generic)
 Neutron Version: 18.1.2.dev118 ["neutron-server", "neutron-dhcp-agent", "neutron-openvswitch-agent", "neutron-l3-agent", "neutron-bgp-dragent", "neutron-metadata-agent"]
 There exist 5 controller+network node.
 OpenvSwitch used in DVR mode and router HA is disabled. (l3_ha = false)
 We are using a single centralized neutron router for connecting all tenant networks to provider network.
 We are using bgp_dragent to announce unique tenant networks.
 Tenant network type: vxlan
 External network type: vlan

** Affects: neutron
     Importance: Undecided
         Status: New

** Attachment added: "ovs-restart-logs.txt"
   https://bugs.launchpad.net/bugs/2023027/+attachment/5678176/+files/ovs-restart-logs.txt

-- 
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to neutron.
https://bugs.launchpad.net/bugs/2023027

Title:
  openvswitch vswitchd restart causing fip and qrouter ports delete

Status in neutron:
  New

Bug description:
  Hi everyone, on a compute node restarting the openvswitch vswitchd
  causing fip and qrouter netns ports deletion.

  The deleted ports created again after l3 agent restart.

  This behaviour causes the network outgage while the upgrade operation

  Neutron-OVS logs and fip, qrouter netns interfaces before-after ovs-l3
  agent restart operation attached to issue.

  Environment Details:
   Openstack Version: Wallaby (cluster installed via kolla-ansible)
   OS Version: Ubuntu 20.04.2 LTS Hosts. (Kernel:5.4.0-90-generic)
   Neutron Version: 18.1.2.dev118 ["neutron-server", "neutron-dhcp-agent", "neutron-openvswitch-agent", "neutron-l3-agent", "neutron-bgp-dragent", "neutron-metadata-agent"]
   There exist 5 controller+network node.
   OpenvSwitch used in DVR mode and router HA is disabled. (l3_ha = false)
   We are using a single centralized neutron router for connecting all tenant networks to provider network.
   We are using bgp_dragent to announce unique tenant networks.
   Tenant network type: vxlan
   External network type: vlan

To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/2023027/+subscriptions