Hi, we currently see sporadic communication problems.
After some research we found out, that this is caused by missing tunnel-port assignments in table 21 of openvswitch.
Today we had the issue again and here the logs of the add_fdb_entries calls at the affected system:
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent.OVSNeutronAgent method add_fdb_entries called with arguments (<neutron.context.Context object at 0x7f7264509810>,) {u'fdb_entries': {u'cd2baf3d-427c-41be-be56-7cbb8176067f': {u'segment_id': 96, u'ports': {u'10.78.23.12': [[u'00:00:00:00:00:00', u'0.0.0.0'], [u'fa:16:3e:d0:a0:77', u'192.168.0.2']]}, u'network_type': u'vxlan'}}}
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent.OVSNeutronAgent method add_fdb_entries called with arguments (<neutron.context.Context object at 0x7f7264509bd0>,) {u'fdb_entries': {u'cd2baf3d-427c-41be-be56-7cbb8176067f': {u'segment_id': 96, u'ports': {u'10.78.23.11': [[u'00:00:00:00:00:00', u'0.0.0.0'], [u'fa:16:3e:29:0c:d5', u'192.168.0.3']]}, u'network_type': u'vxlan'}}}
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent.OVSNeutronAgent method add_fdb_entries called with arguments (<neutron.context.Context object at 0x7f7264509d90>,) {u'fdb_entries': {u'cd2baf3d-427c-41be-be56-7cbb8176067f': {u'segment_id': 96, u'ports': {u'10.78.12.101': []}, u'network_type': u'vxlan'}}}
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent.OVSNeutronAgent method add_fdb_entries called with arguments (<neutron.context.Context object at 0x7f7264627190>,) {u'fdb_entries': {u'cd2baf3d-427c-41be-be56-7cbb8176067f': {u'segment_id': 96, u'ports': {u'10.79.20.102': [[u'00:00:00:00:00:00', u'0.0.0.0']]}, u'network_type': u'vxlan'}}}
The missing tunnel-port is the connection to 10.78.12.101, it looks like the empty array/dict may cause this issue.
Any hints how to further debug the situation? What may cause an empty dict in add_fdb_entries? Thanks a lot, Fabian Zimmermann _______________________________________________ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
