As this patch has been included in Mitaka, I'm marking it as resolved for the OpenStack-Ansible 13.0.0 release.
** Changed in: openstack-ansible/trunk Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. 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 neutron: Fix Released Status in openstack-ansible: Fix Released Status in openstack-ansible trunk series: Fix Released Bug description: Using multiple api_workers, for "nova live-migration" command, a) tunnel flows and tunnel ports are always removed from old host b) and other hosts(sometimes) not getting notification about port delete from old host. So in other hosts, tunnel ports and flood flows(except unicast flow about port) for old host still remain. Root cause and fix is explained in comments 12 and 13. According to bug reporter, this bug can also be reproducible like below. 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" To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1443421/+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