Is also seen in kolla job http://logs.openstack.org/41/619341/12/check/kolla-ansible-ubuntu-source-ceph/811cb0b/secondary1/logs/kolla/cinder/cinder-manage.txt.gz#_2018-12-14_13_17_59_667

2018-12-14 13:17:59.654 13 INFO migrate.versioning.api [-] 126 -> 127... 
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters [-] DBAPIError exception wrapped from (pymysql.err.InternalError) (1071, u'Specified key was too long; max key length is 767 bytes') [SQL: u'\nALTER TABLE quota_usages CHANGE COLUMN resource resource VARCHAR(300)'] (Background on this error at: http://sqlalche.me/e/2j85): InternalError: (1071, u'Specified key was too long; max key length is 767 bytes')
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters Traceback (most recent call last):
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1193, in _execute_context
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters     context)
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/sqlalchemy/engine/default.py", line 509, in do_execute
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters     cursor.execute(statement, parameters)
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/pymysql/cursors.py", line 170, in execute
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters     result = self._query(query)
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/pymysql/cursors.py", line 328, in _query
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters     conn.query(q)
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/pymysql/connections.py", line 516, in query
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters     self._affected_rows = self._read_query_result(unbuffered=unbuffered)
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/pymysql/connections.py", line 727, in _read_query_result
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters     result.read()
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/pymysql/connections.py", line 1066, in read
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters     first_packet = self.connection._read_packet()
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/pymysql/connections.py", line 683, in _read_packet
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters     packet.check_error()
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/pymysql/protocol.py", line 220, in check_error
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters     err.raise_mysql_exception(self._data)
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/pymysql/err.py", line 109, in raise_mysql_exception
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters     raise errorclass(errno, errval)
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters InternalError: (1071, u'Specified key was too long; max key length is 767 bytes')
2018-12-14 13:17:59.667 13 ERROR oslo_db.sqlalchemy.exc_filters