Command to clear session-persistence for lbaas vip fails with internal-server-error

[Vedamurthy Joshi]

R1.10 Build 52 Ubuntu Multinode icehouse setup

Created a lbaas pool , members and VIP.
Then tried to edit the VIP by selecting no session-persistence.
It failed with 'Error: Failed to update VIP lb1_vip1'

neutron/server.log:
==================
2014-10-14 01:10:16.329 ERROR [neutron.api.v2.resource] update failed
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/neutron/api/v2/resource.py", line 87, in resource
    result = method(request=request, **args)
  File "/usr/lib/python2.7/dist-packages/neutron/api/v2/base.py", line 505, in update
    obj = obj_updater(request.context, id, **kwargs)
  File "/usr/lib/python2.7/dist-packages/neutron_plugin_contrail/plugins/opencontrail/loadbalancer/plugin.py", line 109, in update_vip
    v = super(LoadBalancerPlugin, self).update_vip(context, id, vip)
  File "/usr/lib/python2.7/dist-packages/neutron_plugin_contrail/plugins/opencontrail/loadbalancer/loadbalancer_db.py", line 94, in update_vip
    return self._vip_manager.update(context, id, vip)
  File "/usr/lib/python2.7/dist-packages/neutron_plugin_contrail/plugins/opencontrail/loadbalancer/resource_manager.py", line 284, in update
    if self.update_properties(obj, id, r):
  File "/usr/lib/python2.7/dist-packages/neutron_plugin_contrail/plugins/opencontrail/loadbalancer/virtual_ip.py", line 281, in update_properties
    if self._update_virtual_ip_properties(props, id, v):
  File "/usr/lib/python2.7/dist-packages/neutron_plugin_contrail/plugins/opencontrail/loadbalancer/virtual_ip.py", line 269, in _update_virtual_ip_properties
    if props.persistence_type != sp['type']:
KeyError: 'type'

[Vedamurthy Joshi (vedujoshi)]

Command line fails as well

root@nodec22:~# neutron lb-vip-update myvip1 --session_persistence action=clear
Request Failed: internal server error while processing your request.
root@nodec22:~#