# Pastebin WNKStFUI
i am using multi-node devstack setup to troubleshoot customer issue. Devstack is deployed with latest code. during live migration i am facing below issue. your suggestion is deeply appreciate. 3-4b03-82d4-7b6f91679bb2 and host compute1.: neutronclient.common.exceptions.InternalServerError: Binding for port e2f64be4-0c53-4b03-82d4-7b6f91679bb2 on host compute1 could not be created or updated.
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3] Traceback (most recent call last):
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]   File "/opt/stack/nova/nova/network/neutron.py", line 1541, in bind_ports_to_host
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]     binding = client.create_port_binding(port_id, data)['binding']
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]   File "/opt/stack/nova/nova/network/neutron.py", line 196, in wrapper
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]     ret = obj(*args, **kwargs)
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]   File "/opt/stack/data/venv/lib/python3.10/site-packages/neutronclient/v2_0/client.py", line 837, in create_port_binding
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]     return self.post(self.port_bindings_path % port_id, body=body)
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]   File "/opt/stack/nova/nova/network/neutron.py", line 196, in wrapper
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]     ret = obj(*args, **kwargs)
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]   File "/opt/stack/data/venv/lib/python3.10/site-packages/neutronclient/v2_0/client.py", line 361, in post
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]     return self.do_request("POST", action, body=body,
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]   File "/opt/stack/nova/nova/network/neutron.py", line 196, in wrapper
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]     ret = obj(*args, **kwargs)
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]   File "/opt/stack/data/venv/lib/python3.10/site-packages/neutronclient/v2_0/client.py", line 297, in do_request
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]     self._handle_fault_response(status_code, replybody, resp)
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]   File "/opt/stack/nova/nova/network/neutron.py", line 196, in wrapper
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]     ret = obj(*args, **kwargs)
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]   File "/opt/stack/data/venv/lib/python3.10/site-packages/neutronclient/v2_0/client.py", line 272, in _handle_fault_response
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]     exception_handler_v20(status_code, error_body)
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]   File "/opt/stack/data/venv/lib/python3.10/site-packages/neutronclient/v2_0/client.py", line 90, in exception_handler_v20
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3]     raise client_exc(message=error_message,
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3] neutronclient.common.exceptions.InternalServerError: Binding for port e2f64be4-0c53-4b03-82d4-7b6f91679bb2 on host compute1 could not be created or updated.
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3] Neutron server returns request_ids: ['req-4ccfa043-8fce-4d0f-b742-c6ad6904eaaf']
nova-conductor.log:ERROR nova.network.neutron [instance: 827476aa-5ea4-4b81-98f5-91dd70487cd3] 
nova-conductor.log:ERROR dbcounter [-] Failed to account for access to database 'nova_cell1': (pymysql.err.OperationalError) (2006, "MySQL server has gone away (BrokenPipeError(32, 'Broken pipe'))")