full_sync periodic tasks fails for lbaas

[rajiv]

full sync periodic task fails with following error

ERROR networking_odl.journal.periodic_task [^[[01;36mNone req-1d5b0e2d-2a13-4fe4-bb9e-ec98555afa87 ^[[00;36mNone None] ^[[01;35mFailed during periodic task operation full_sync.^[[00m: TypeError: 'NoneType' object is not iterable
ERROR networking_odl.journal.periodic_task ^[[01;35m^[[00mTraceback (most recent call last):
ERROR networking_odl.journal.periodic_task ^[[01;35m^[[00m File "/opt/stack/new/networking-odl/networking_odl/journal/periodic_task.py", line 61, in _execute_op
ERROR networking_odl.journal.periodic_task ^[[01;35m^[[00m operation(context=context)
ERROR networking_odl.journal.periodic_task ^[[01;35m^[[00m File "/opt/stack/new/networking-odl/networking_odl/journal/full_sync.py", line 86, in full_sync
ERROR networking_odl.journal.periodic_task ^[[01;35m^[[00m collection_name)
ERROR networking_odl.journal.periodic_task ^[[01;35m^[[00m File "/opt/stack/new/networking-odl/networking_odl/journal/full_sync.py", line 126, in _sync_resources
ERROR networking_odl.journal.periodic_task ^[[01;35m^[[00m for resource in resources:
ERROR networking_odl.journal.periodic_task ^[[01;35m^[[00mTypeError: 'NoneType' object is not iterable
ERROR networking_odl.journal.periodic_task ^[[01;35m^[[00m

get_members list of load balancer returns None type but iterable is expected by networking_odl

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/494174

[Isaku Yamahata (yamahata)]

The bug fix would be a backport candidate for Pike.
So this is marked as critical.

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/494663

[OpenStack Infra (hudson-openstack)]

Change abandoned by rajiv (<email address hidden>) on branch: master
Review: https://review.openstack.org/494174