lbaas loadbalancers statuses command failed on stable/liberty release

[alex kang]

/lbaas/loadbalancers/<lb-id>/statuses used to retrieve load-balancer and its related resources in a dict. This RESTful API works at Kilo and Master, but not stable/liberty.

lbaasv2 driver in my devstack configuration:
enable_plugin neutron-lbaas https://git.openstack.org/openstack/neutron-lbaas stable/liberty
NEUTRON_LBAAS_SERVICE_PROVIDERV2=LOADBALANCERV2:Haproxy:neutron_lbaas.drivers.haproxy.plugin_driver.HaproxyOnHostPluginDriver:default
enable_service q-lbaasv2

lbaas resource tree:
load-balancer
  -- listener1
  -- pool1 -- health monitor (HTTP)
     -- member-1, it server has floating ip
     -- member-1, it server has floating ip

Error message from the statuses API:

URI: u'/lbaas/loadbalancers/2a0c262f-4ff8-44a2-bacf-9c01923be1b7/statuses’ causing “ServerFault: ServerFault()”

q-svc log:

2016-06-17 14:51:56.635 INFO neutron.wsgi [req-43338856-0889-4072-8aa0-f304b723dbad admin 06ffffb000ad46398f454b8803b28f45] 10.144.139.55 - - [17/Jun/2016 14:51:56] "GET /v2.0/lbaas/loadbalancers/2a0c262f-4ff8-44a2-bacf-9c01923be1b7 HTTP/1.1" 200 666 0.093880
2016-06-17 14:51:56.638 INFO neutron.wsgi [-] (23451) accepted ('10.144.139.55', 51711)
2016-06-17 14:51:56.734 ERROR neutron.api.v2.resource [req-f546f674-3c68-408e-bcdf-237e79d3f45e admin 06ffffb000ad46398f454b8803b28f45] statuses failed
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource Traceback (most recent call last):
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource File "/opt/stack/neutron/neutron/api/v2/resource.py", line 83, in resource
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource result = method(request=request, **args)
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource File "/usr/local/lib/python2.7/dist-packages/oslo_db/api.py", line 146, in wrapper
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource ectxt.value = e.inner_exc
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 204, in __exit__
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource six.reraise(self.type_, self.value, self.tb)
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource File "/usr/local/lib/python2.7/dist-packages/oslo_db/api.py", line 136, in wrapper
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource return f(*args, **kwargs)
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource File "/opt/stack/neutron/neutron/api/v2/base.py", line 217, in _handle_action
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource ret_value = getattr(self._plugin, name)(*arg_list, **kwargs)
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource File "/opt/stack/neutron-lbaas/neutron_lbaas/services/loadbalancer/plugin.py", line 1035, in statuses
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource self._set_degraded(self, listener_status, lb_status)
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource File "/opt/stack/neutron-lbaas/neutron_lbaas/services/loadbalancer/plugin.py", line 1068, in _set_degraded
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource obj["operating_status"] = lb_const.DEGRADED
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource TypeError: 'LoadBalancerPluginv2' object does not support item assignment
2016-06-17 14:51:56.734 TRACE neutron.api.v2.resource

stack@htb-1n-eng-dhcp8:/opt/devtest/vmware-nsx-devel/vmware_nsx_tempest/tests/nsxv/api/lbaas$ neutron lbaas-loadbalancer-show 2a0c262f-4ff8-44a2-bacf-9c01923be1b7
+---------------------+------------------------------------------------+
| Field | Value |
+---------------------+------------------------------------------------+
| admin_state_up | True |
| description | |
| id | 2a0c262f-4ff8-44a2-bacf-9c01923be1b7 |
| listeners | {"id": "c435a653-91c1-4e66-84cb-92bf0a16d57c"} |
| name | |
| operating_status | ONLINE |
| provider | haproxy |
| provisioning_status | ACTIVE |
| tenant_id | 36024bc3b9f74976a0da13a8e6ff4fc3 |
| vip_address | 10.20.0.3 |
| vip_port_id | c34a0532-f286-4730-8cf4-69343f3b805a |
| vip_subnet_id | 0dec2bac-9038-485f-b4ed-730213590614 |
+---------------------+------------------------------------------------+

driver used:

[alex kang (akang)]

Correction on lbaas resource tree:
load-balancer
  -- listener1
  -- pool1 -- health monitor (HTTP)
     -- member-1, it server has floating ip
     -- member-2, it server has floating ip

[Corey Bryant (corey.bryant)]

Alex, Thanks for submitting this bug. It looks like this bug should be targeted at upstream neutron-lbaas for stable/liberty so I'm going to do that.

[alex kang (akang)]

I made mistake in configuring the OVS_BRIDGE and causing the problem.

devstack stacking process insert lbaas:

    ovs_integration_bridge = nsxvswitch # nsx-managed

as it is to lbaas config.

lbaas agent read it as it is without removing the comment which I thought everything after # is comment

please close this bug.