Comment 1 for bug 1539096

Also task in such state cannot be aborted:

(.venv) developer@fuel:stack$ rally --nodebug task list | grep e4191b69-b856-423a-86cb-faae09d53d85
| e4191b69-b856-423a-86cb-faae09d53d85 | 9b5d28c8-c3a2-11e5-94e0-0cc47a15b3a0 | 2016-01-27 22:11:41.808060 | 0:00:09.341767 | running | 10_env_run_rally/98/3f7ceb47 |

(.venv) developer@fuel:stack$ rally --nodebug task results e4191b69-b856-423a-86cb-faae09d53d85
The task e4191b69-b856-423a-86cb-faae09d53d85 marked as 'failed'. Results available when it is 'finished' .

(.venv) developer@fuel:stack$ rally --version
0.2.0

(.venv) developer@fuel:stack$ rally --nodebug task abort e4191b69-b856-423a-86cb-faae09d53d85
2016-01-28 21:07:06.373 18875 ERROR oslo_db.sqlalchemy.exc_filters [-] DBAPIError exception wrapped from (psycopg2.DataError) invalid input value for enum enum_tasks_status: "soft_aborting"
LINE 1: ...6cb-faae09d53d85' AND tasks.status IN ('running', 'soft_abor...
                                                             ^
 [SQL: 'UPDATE tasks SET updated_at=%(updated_at)s, status=%(status)s WHERE tasks.uuid = %(uuid_1)s AND tasks.status IN (%(status_1)s, %(status_2)s)'] [parameters: {'status': 'aborting', 'uuid_1': u'e4191b69-b856-423a-86cb-faae09d53d85', 'updated_at': datetime.datetime(2016, 1, 28, 21, 7, 6, 371828), 'status_1': 'running', 'status_2': 'soft_aborting'}]
2016-01-28 21:07:06.373 18875 ERROR oslo_db.sqlalchemy.exc_filters Traceback (most recent call last):
2016-01-28 21:07:06.373 18875 ERROR oslo_db.sqlalchemy.exc_filters File "/opt/stack/.venv/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1139, in _execute_context
...

full traceback: http://paste.openstack.org/show/485326/