The stat_status is not in accordance whith the actual stack status while the autoscaling is triggered.

When triggered to do autoscaling, actually, the stack does stack-update action to scal the resources.
In my opinion, at the same time, if we use "heat stack-list" to check this stack, "update_in_process" is
expected for "stack_status" column. However, the stack_staus is "CREATE_COMPLETE" as is shown below.

[root@jeguan-ctrl-01 auto]# heat stack-list
+--------------------------------------+-------------------+-----------------+---------------------+--------------+
| id | stack_name | stack_status | creation_time | updated_time |
+--------------------------------------+-------------------+-----------------+---------------------+--------------+
| 47a802aa-b857-4940-af3a-bf5541b6600e | alice | CREATE_COMPLETE | 2017-02-20T09:10:39 | None |
+--------------------------------------+-------------------+-----------------+---------------------+--------------+

Thanks,
Jeffrey