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[zhouzhong <2008876@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Description
===========
Before shutdown the instance, the source node was breakdown, caused that the shutdown instance message remained in queue and could not be consumed, message was not consumed until the source node was started. When the source node was up, continuing to execute the stop operation, and the instance vm_state was changed to STOPPED,  the periodic task of synchronized power state _sync_power_states was captured and triggered the shutdown operation.

Steps to reproduce
==================
1.create an instance
2.break down the source node of the instance, by shutdown or the others actions
3.send request to shutdown the instance
4.start the source node

Expected result
===============
The instance does not shutdown by _sync_power_states and power state is always RUNNING

Actual result
=============
The instance unexpected shutdown when the source node up

Environment
===========

** Affects: nova
     Importance: Undecided
         Status: New

** Summary changed:

- instance unexpected shutdown when node startup
+ instance unexpected shutdown when source node startup

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https://bugs.launchpad.net/bugs/2008876

Title:
  instance unexpected shutdown when source node startup

Status in OpenStack Compute (nova):
  New

Bug description:
  Description
  ===========
  Before shutdown the instance, the source node was breakdown, caused that the shutdown instance message remained in queue and could not be consumed, message was not consumed until the source node was started. When the source node was up, continuing to execute the stop operation, and the instance vm_state was changed to STOPPED,  the periodic task of synchronized power state _sync_power_states was captured and triggered the shutdown operation.

  Steps to reproduce
  ==================
  1.create an instance
  2.break down the source node of the instance, by shutdown or the others actions
  3.send request to shutdown the instance
  4.start the source node

  Expected result
  ===============
  The instance does not shutdown by _sync_power_states and power state is always RUNNING

  Actual result
  =============
  The instance unexpected shutdown when the source node up

  Environment
  ===========

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