Old VXLAN tunnel endpoints persist after node deletion in Red Hat OpenStack Platform
Old VXLAN tunnel endpoints persist after node deletion in Red Hat OpenStack Platform.
ovs-vsctl show shows tunnel endpoints to invalid IP addresses and the ARP table shows IP addresses with incomplete ARP resolution:
[root@compute01 ~]# arp -n | grep 192.168.3 | grep incom 192.168.3.172 (incomplete) vlan666 192.168.3.183 (incomplete) vlan666 192.168.3.173 (incomplete) vlan666
Additionally, one can observe a small storm or ARP packets on the tenant network due to the fact that all overcloud nodes try to resolve these invalid IP addresses.
ovs_neutron database still holds entries for these endpoints:
[root@srbhonciye24 ~]# mysql ovs_neutron -e 'select * from ml2_vxlan_endpoints' | egrep '183|173|172' 192.168.3.172 4789 compute62.localdomain 192.168.3.173 4789 compute63.localdomain 192.168.3.183 4789 compute73.localdomain
These nodes were deleted at an earlier point in time.
Red Hat OpenStack Platform 10
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