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[Feng Xi Yan <yanfengxi@xxxxxxxxxx>]

Public bug reported:

When using fake driver, "nova stop" command did not change the
instance's power state.

Steps to reproduce the bug:
(1) Config nova to use fake drive
vim /etc/nova/nova.conf
compute_driver = fake.FakeDriver

(2) Boot a VM
+----------------------------------------------+-------+------------+--------------+--------------+------------------------+
| ID                                                                         | Name  |      Status   |  Task State   | Power State |  Networks                    |
+----------------------------------------------+-------+------------+--------------+--------------+------------------------+
| 23f4abf8-664b-4aff-bf9e-fdad35cc7a9d | test     |       ACTIVE |            -          | Running         | test-net=55.0.0.125  |
+----------------------------------------------+-------+------------+--------------+--------------+------------------------+

(3) Stop this instance with "nova stop" command
$> nova stop test
$> nova list
+----------------------------------------------+-------+------------+--------------+--------------+------------------------+
| ID                                                                         | Name  |      Status   |  Task State   | Power State |  Networks                    |
+----------------------------------------------+-------+------------+--------------+--------------+------------------------+
| 23f4abf8-664b-4aff-bf9e-fdad35cc7a9d | test     |  SHUTOFF  |            -          | Running         | test-net=55.0.0.125  |
+----------------------------------------------+-------+------------+--------------+--------------+------------------------+

(4) We can see the power state is still "Running", while it should be
“Showdown".

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1329192

Title:
  nova can not stop a vm when using fake driver

Status in OpenStack Compute (Nova):
  New

Bug description:
  When using fake driver, "nova stop" command did not change the
  instance's power state.

  Steps to reproduce the bug:
  (1) Config nova to use fake drive
  vim /etc/nova/nova.conf
  compute_driver = fake.FakeDriver

  (2) Boot a VM
  +----------------------------------------------+-------+------------+--------------+--------------+------------------------+
  | ID                                                                         | Name  |      Status   |  Task State   | Power State |  Networks                    |
  +----------------------------------------------+-------+------------+--------------+--------------+------------------------+
  | 23f4abf8-664b-4aff-bf9e-fdad35cc7a9d | test     |       ACTIVE |            -          | Running         | test-net=55.0.0.125  |
  +----------------------------------------------+-------+------------+--------------+--------------+------------------------+

  (3) Stop this instance with "nova stop" command
  $> nova stop test
  $> nova list
  +----------------------------------------------+-------+------------+--------------+--------------+------------------------+
  | ID                                                                         | Name  |      Status   |  Task State   | Power State |  Networks                    |
  +----------------------------------------------+-------+------------+--------------+--------------+------------------------+
  | 23f4abf8-664b-4aff-bf9e-fdad35cc7a9d | test     |  SHUTOFF  |            -          | Running         | test-net=55.0.0.125  |
  +----------------------------------------------+-------+------------+--------------+--------------+------------------------+

  (4) We can see the power state is still "Running", while it should be
  “Showdown".

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