Comment 2 for bug 1430641

Meet this exception in mitaka cinder.

ENV:
CentOS 7
stable/mitaka
[root@controller-108-202 cinder]# cinder-manage --version
8.0.0
[root@controller-108-202 cinder]# rpm -qa|grep sql
python-sqlalchemy-1.0.11-1.el7.x86_64

Exception logs:
req-10852212-4302-4f9b-b22b-95f1fcfcf6f0
http://paste.openstack.org/show/567108/
http://paste.openstack.org/show/567109/