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[Eli Qiao <taget@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

reproduce steps:

[tagett@stack-01 devstack]$ nova resize test1 4
[tagett@stack-01 devstack]$ nova list
+--------------------------------------+-----------+--------+-------------+-------------+----------------------+
| ID                                   | Name      | Status | Task State  | Power State | Networks             |
+--------------------------------------+-----------+--------+-------------+-------------+----------------------+
| fb326f1c-05cb-4080-a133-2688a1580bdb | spacewalk | ACTIVE | -           | Running     |                      |
| d7ba639c-d261-4dbe-ae70-3aaefc4de339 | test1     | RESIZE | resize_prep | Running     | private=192.168.1.94 |
+--------------------------------------+-----------+--------+-------------+-------------+----------------------+

kill nova-compute, then restart it.

[tagett@stack-01 devstack]$ nova list
+--------------------------------------+-----------+--------+-------------+-------------+----------------------+
| ID                                   | Name      | Status | Task State  | Power State | Networks             |
+--------------------------------------+-----------+--------+-------------+-------------+----------------------+
| fb326f1c-05cb-4080-a133-2688a1580bdb | spacewalk | ACTIVE | -           | Running     |                      |
| d7ba639c-d261-4dbe-ae70-3aaefc4de339 | test1     | RESIZE | resize_prep | Running     | private=192.168.1.94 |
+--------------------------------------+-----------+--------+-------------+-------------+----------------------

[tagett@stack-01 devstack]$ nova list
+--------------------------------------+-----------+--------+-------------+-------------+----------------------+
| ID                                   | Name      | Status | Task State  | Power State | Networks             |
+--------------------------------------+-----------+--------+-------------+-------------+----------------------+
| fb326f1c-05cb-4080-a133-2688a1580bdb | spacewalk | ACTIVE | -           | Running     |                      |
| d7ba639c-d261-4dbe-ae70-3aaefc4de339 | test1     | RESIZE | resize_prep | Running     | private=192.168.1.94 |
+--------------------------------------+-----------+--------+-------------+-------------+----------------------+
[tagett@stack-01 devstack]$ nova reboot test1 
ERROR (Conflict): Cannot 'reboot' instance d7ba639c-d261-4dbe-ae70-3aaefc4de339 while it is in task_state resize_prep (HTTP 409) (Request-ID: req-7a9f4e54-388a-48b1-b361-4b82496542da)

** Affects: nova
     Importance: Undecided
     Assignee: Eli Qiao (taget-9)
         Status: New

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https://bugs.launchpad.net/bugs/1389127

Title:
  instance can not recovery from resize status when nova-compute down
  after resize starting

Status in OpenStack Compute (Nova):
  New

Bug description:
  reproduce steps:

  [tagett@stack-01 devstack]$ nova resize test1 4
  [tagett@stack-01 devstack]$ nova list
  +--------------------------------------+-----------+--------+-------------+-------------+----------------------+
  | ID                                   | Name      | Status | Task State  | Power State | Networks             |
  +--------------------------------------+-----------+--------+-------------+-------------+----------------------+
  | fb326f1c-05cb-4080-a133-2688a1580bdb | spacewalk | ACTIVE | -           | Running     |                      |
  | d7ba639c-d261-4dbe-ae70-3aaefc4de339 | test1     | RESIZE | resize_prep | Running     | private=192.168.1.94 |
  +--------------------------------------+-----------+--------+-------------+-------------+----------------------+

  kill nova-compute, then restart it.

  [tagett@stack-01 devstack]$ nova list
  +--------------------------------------+-----------+--------+-------------+-------------+----------------------+
  | ID                                   | Name      | Status | Task State  | Power State | Networks             |
  +--------------------------------------+-----------+--------+-------------+-------------+----------------------+
  | fb326f1c-05cb-4080-a133-2688a1580bdb | spacewalk | ACTIVE | -           | Running     |                      |
  | d7ba639c-d261-4dbe-ae70-3aaefc4de339 | test1     | RESIZE | resize_prep | Running     | private=192.168.1.94 |
  +--------------------------------------+-----------+--------+-------------+-------------+----------------------

  [tagett@stack-01 devstack]$ nova list
  +--------------------------------------+-----------+--------+-------------+-------------+----------------------+
  | ID                                   | Name      | Status | Task State  | Power State | Networks             |
  +--------------------------------------+-----------+--------+-------------+-------------+----------------------+
  | fb326f1c-05cb-4080-a133-2688a1580bdb | spacewalk | ACTIVE | -           | Running     |                      |
  | d7ba639c-d261-4dbe-ae70-3aaefc4de339 | test1     | RESIZE | resize_prep | Running     | private=192.168.1.94 |
  +--------------------------------------+-----------+--------+-------------+-------------+----------------------+
  [tagett@stack-01 devstack]$ nova reboot test1 
  ERROR (Conflict): Cannot 'reboot' instance d7ba639c-d261-4dbe-ae70-3aaefc4de339 while it is in task_state resize_prep (HTTP 409) (Request-ID: req-7a9f4e54-388a-48b1-b361-4b82496542da)

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