After looking into errors in case description and logs in comment #4, both seems to fail waiting for sb_idl object.
AttributeError: 'MetadataProxyHandler' object has no attribute 'sb_idl' AttributeError: 'MetadataAgent' object has no attribute 'sb_idl' Once the failure is in MetadataAgent process and the other time in forked MetadataAgentProxy process. There is no TimeOut exception second time as this patch is applied [1] which retries the connections without timeout. However in both the cases we can see logs like below which says SSL connection to OVSDB DB is successful. INFO ovsdbapp.backend.ovs_idl.vlog [-] ssl:10.216.241.118:6642: connected Seems to stuck at wait_for_change [2] On neutron-server side, these scenario's are handled by retry logic on getting IDL objects and waiting for post-fork events, see [3], [4] Similar logic is required for neutron-ovn-metadata-agent as well. I wil submit a patch shortly for review. [1] https://review.opendev.org/c/openstack/neutron/+/788596 [2] https://opendev.org/openstack/neutron/src/commit/87f7abb86cad13c8bc04b4e6165600ee6fd9ef7c/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/impl_idl_ovn.py#L53-L56 [3] https://opendev.org/openstack/neutron/src/commit/87f7abb86cad13c8bc04b4e6165600ee6fd9ef7c/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/impl_idl_ovn.py#L222-L226 [4] https://review.opendev.org/c/openstack/neutron/+/781555 ** Also affects: neutron Importance: Undecided Status: New ** Changed in: neutron Assignee: (unassigned) => Hemanth Nakkina (hemanth-n) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1928031 Title: neutron-ovn-metadata-agent AttributeError: 'MetadataProxyHandler' object has no attribute 'sb_idl' To manage notifications about this bug go to: https://bugs.launchpad.net/charm-ovn-chassis/+bug/1928031/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs