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[chandrasekaran natarajan <chandrasekaran.natarajan@xxxxxx>]

Public bug reported:


Setup : Neutron server  HA (3 nodes).
Hypervisor – ESX with OVsvapp
l2 POP is on Network node and off on Ovsvapp.

Condition:
Make L2 pop on OVs agent, api workers =10 in the controller. 

On network node,the VXLAN tunnel is created with ESX2 and the Tunnel
with ESX1 is not removed after migrating VM from ESX1 to ESX2.

Attaching the logs of servers and agent logs.

stack@OSC-NS1:/opt/stack/logs/screen$ sudo ovs-vsctl show
662d03fb-c784-498e-927c-410aa6788455
    Bridge br-ex
        Port phy-br-ex
            Interface phy-br-ex
                type: patch
                options: {peer=int-br-ex}
        Port "eth2"
            Interface "eth2"
        Port br-ex
            Interface br-ex
                type: internal
    Bridge br-tun
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port "vxlan-6447007a"
            Interface "vxlan-6447007a"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="100.71.0.41", out_key=flow, remote_ip="100.71.0.122"}    <<<<<<<<<<<< This should have been deleted after MIGRATION.
        Port "vxlan-64470082"
            Interface "vxlan-64470082"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="100.71.0.41", out_key=flow, remote_ip="100.71.0.130"}
        Port br-tun
            Interface br-tun
                type: internal
        Port "vxlan-6447002a"
            Interface "vxlan-6447002a"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="100.71.0.41", out_key=flow, remote_ip="100.71.0.42"}
    Bridge "br-eth1"
        Port "br-eth1"
            Interface "br-eth1"
                type: internal
        Port "phy-br-eth1"
            Interface "phy-br-eth1"
                type: patch
                options: {peer="int-br-eth1"}
    Bridge br-int
        fail_mode: secure
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "int-br-eth1"
            Interface "int-br-eth1"
                type: patch
                options: {peer="phy-br-eth1"}
        Port br-int
            Interface br-int
                type: internal
        Port int-br-ex
            Interface int-br-ex
                type: patch
                options: {peer=phy-br-ex}
        Port "tap9515e5b3-ec"
            tag: 11
            Interface "tap9515e5b3-ec"
                type: internal
    ovs_version: "2.0.2"

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1443421

Title:
  After VM migration, tunnels not getting removed with L2Pop ON, when
  using multiple api_workers in controller

Status in OpenStack Neutron (virtual network service):
  New

Bug description:

  Setup : Neutron server  HA (3 nodes).
  Hypervisor – ESX with OVsvapp
  l2 POP is on Network node and off on Ovsvapp.

  Condition:
  Make L2 pop on OVs agent, api workers =10 in the controller. 

  On network node,the VXLAN tunnel is created with ESX2 and the Tunnel
  with ESX1 is not removed after migrating VM from ESX1 to ESX2.

  Attaching the logs of servers and agent logs.

  stack@OSC-NS1:/opt/stack/logs/screen$ sudo ovs-vsctl show
  662d03fb-c784-498e-927c-410aa6788455
      Bridge br-ex
          Port phy-br-ex
              Interface phy-br-ex
                  type: patch
                  options: {peer=int-br-ex}
          Port "eth2"
              Interface "eth2"
          Port br-ex
              Interface br-ex
                  type: internal
      Bridge br-tun
          Port patch-int
              Interface patch-int
                  type: patch
                  options: {peer=patch-tun}
          Port "vxlan-6447007a"
              Interface "vxlan-6447007a"
                  type: vxlan
                  options: {df_default="true", in_key=flow, local_ip="100.71.0.41", out_key=flow, remote_ip="100.71.0.122"}    <<<<<<<<<<<< This should have been deleted after MIGRATION.
          Port "vxlan-64470082"
              Interface "vxlan-64470082"
                  type: vxlan
                  options: {df_default="true", in_key=flow, local_ip="100.71.0.41", out_key=flow, remote_ip="100.71.0.130"}
          Port br-tun
              Interface br-tun
                  type: internal
          Port "vxlan-6447002a"
              Interface "vxlan-6447002a"
                  type: vxlan
                  options: {df_default="true", in_key=flow, local_ip="100.71.0.41", out_key=flow, remote_ip="100.71.0.42"}
      Bridge "br-eth1"
          Port "br-eth1"
              Interface "br-eth1"
                  type: internal
          Port "phy-br-eth1"
              Interface "phy-br-eth1"
                  type: patch
                  options: {peer="int-br-eth1"}
      Bridge br-int
          fail_mode: secure
          Port patch-tun
              Interface patch-tun
                  type: patch
                  options: {peer=patch-int}
          Port "int-br-eth1"
              Interface "int-br-eth1"
                  type: patch
                  options: {peer="phy-br-eth1"}
          Port br-int
              Interface br-int
                  type: internal
          Port int-br-ex
              Interface int-br-ex
                  type: patch
                  options: {peer=phy-br-ex}
          Port "tap9515e5b3-ec"
              tag: 11
              Interface "tap9515e5b3-ec"
                  type: internal
      ovs_version: "2.0.2"

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