http://logs.openstack.org/43/230843/3/gate/gate-heat-dsvm-functional-orig-mysql/3d164c3/console.html
This looks like a concurrency issue.
heat_integrationtests.functional.test_autoscaling.AutoscalingGroupUpdatePolicyTest.test_instance_group_update_replace_huge_min_in_service
2015-10-06 02:56:12.108 | 2015-10-06 02:56:12.088 | -----------------------------------------------------------------------------------------------------------------------------------------
2015-10-06 02:56:12.109 | 2015-10-06 02:56:12.089 |
2015-10-06 02:56:12.109 | 2015-10-06 02:56:12.090 | Captured traceback:
2015-10-06 02:56:12.109 | 2015-10-06 02:56:12.093 | ~~~~~~~~~~~~~~~~~~~
2015-10-06 02:56:12.109 | 2015-10-06 02:56:12.094 | Traceback (most recent call last):
2015-10-06 02:56:12.110 | 2015-10-06 02:56:12.096 | File "heat_integrationtests/functional/test_autoscaling.py", line 483, in test_instance_group_update_replace_huge_min_in_service
2015-10-06 02:56:12.110 | 2015-10-06 02:56:12.098 | update_replace=True)
2015-10-06 02:56:12.111 | 2015-10-06 02:56:12.099 | File "heat_integrationtests/functional/test_autoscaling.py", line 377, in update_instance_group
2015-10-06 02:56:12.112 | 2015-10-06 02:56:12.101 | environment=env, files=files)
2015-10-06 02:56:12.114 | 2015-10-06 02:56:12.102 | File "heat_integrationtests/common/test.py", line 378, in update_stack
2015-10-06 02:56:12.115 | 2015-10-06 02:56:12.104 | self._wait_for_stack_status(**kwargs)
2015-10-06 02:56:12.143 | 2015-10-06 02:56:12.105 | File "heat_integrationtests/common/test.py", line 313, in _wait_for_stack_status
2015-10-06 02:56:12.143 | 2015-10-06 02:56:12.107 | fail_regexp):
2015-10-06 02:56:12.144 | 2015-10-06 02:56:12.108 | File "heat_integrationtests/common/test.py", line 274, in _verify_status
2015-10-06 02:56:12.144 | 2015-10-06 02:56:12.110 | stack_status_reason=stack.stack_status_reason)
2015-10-06 02:56:12.144 | 2015-10-06 02:56:12.111 | heat_integrationtests.common.exceptions.StackBuildErrorException: Stack AutoscalingGroupUpdatePolicyTest-1680323451/4b38c55d-afb4-4463-818a-13cbfd7abf02 is in UPDATE_FAILED status due to 'resources.JobServerGroup: Stack AutoscalingGroupUpdatePolicyTest-1680323451-JobServerGroup-hl4ptu674vbf already has an action (UPDATE) in progress.'
Assigned it to me. Please feel free to push a patch if you find the root cause.