Comment 5 for bug 1609688

@Juan, I think output is different and seems like it's a different issue as well.
Not sure if we need to open a new bug for it, because it's still because of mistral and on the same stage.

http://logs.openstack.org/periodic/periodic-tripleo-ci-centos-7-ovb-ha/f2d3624/console.html#_2016-08-06_07_31_42_904692

tripleo.sh -- Register nodes
#################
You must source a stackrc file for the Undercloud.
Attempting to source /home/jenkins/stackrc
Done

(pymysql.err.InternalError) (1054, u"Unknown column 'unique_key' in 'field list'") [SQL: u'INSERT INTO delayed_calls_v2 (created_at, id, factory_method_path, target_method_name, method_arguments, serializers, unique_key, auth_context, execution_time, processing) VALUES ...