ERROR neutron.agent.dhcp.agent - Unexpected number of DHCP interfaces for metadata proxy

Question

I constantly see this line of Error in neutron . I dont know how to solve it.

ERROR neutron.agent.dhcp.agent [-] Unexpected number of DHCP interfaces for metadata proxy, expected 1, got 3

thanks in advance

Answer 1

It's so simple. Just delete all DHCP agents from OpenStack and add a new agent to every controller node, then recover your MariaDB database with the Kolla-ansible module. make sure that you have enough IPs to create new DHCP agents and that your network interface is configured correctly.

Answer 2

I ran into the exact same error message after upgrading neutron to victoria and opened a bug ticket for this. It ended up to be a bug in the ipv6 metadata implementation and is already fixed in the stable branches of neutron. https://bugs.launchpad.net/neutron/+bug/1989979