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[Bug 1457329] [NEW] Error status of instance after suspend exception

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Public bug reported:

devstack , the newest code, suspend instance, then got exception as
follows：

Setting instance vm_state to ERROR^[[00m^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager 
Traceback (most recent call last):
^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager   File "/opt/stack/nova/nova/compute/manager.py", line 6089, in _error_out_instance_on_exception^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager    yield
^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager   File "/opt/stack/nova/nova/compute/manager.py", line 4014, in suspend_instance^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager    self.driver.suspend(context, instance)
^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager   File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 2248, in suspend^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager dom.managedSave(0)
^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager   File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 183, in doit ^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager   result = proxy_call(self._autowrap, f, *args, **kwargs)
^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager  File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 141, in proxy_call    rv = execute(f, *args, **kwargs)
^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager  File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 122, in execute six.reraise(c, e, tb)
^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager  File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 80, in tworker   rv = meth(*args, **kwargs)
^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager  File "/usr/local/lib/python2.7/dist-packages/libvirt.py", line 1167, in managedSave
^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager   if ret == -1: raise libvirtError ('virDomainManagedSave() failed', dom=self)
                libvirtError: operation failed: domain save job: unexpectedly failed

ubuntu@dev1:~$ nova list
+--------------------------------------+-------+-----------+------------+-------------+------------------------------------------------------+
| ID                                   | Name  | Status    | Task State | Power State | Networks                                             |
+--------------------------------------+-------+-----------+------------+-------------+------------------------------------------------------+
| 0096094f-b854-4a56-bb35-c112cdbe20fb | test5 | ERROR     | -          | Running     | private=10.0.0.5, fd3b:f9:a091:0:f816:3eff:fe8e:dc62 |
+--------------------------------------+-------+-----------+------------+-------------+------------------------------------------------------+

"virsh list" can see the instance is running
ubuntu@dev1:~$ virsh list --all
 Id    Name                           State
----------------------------------------------------
 2     instance-00000003              running

Expected result:
Even though occurs excption, the status of instance still should be "ACTIVE".

** Affects: nova
     Importance: Undecided
     Assignee: ugvddm (271025598-9)
         Status: New

** Changed in: nova
     Assignee: (unassigned) => ugvddm (271025598-9)

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https://bugs.launchpad.net/bugs/1457329

Title:
  Error status of instance after suspend exception

Status in OpenStack Compute (Nova):
  New

Bug description:
  devstack , the newest code, suspend instance, then got exception as
  follows：

  Setting instance vm_state to ERROR^[[00m^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager 
  Traceback (most recent call last):
  ^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager   File "/opt/stack/nova/nova/compute/manager.py", line 6089, in _error_out_instance_on_exception^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager    yield
  ^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager   File "/opt/stack/nova/nova/compute/manager.py", line 4014, in suspend_instance^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager    self.driver.suspend(context, instance)
  ^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager   File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 2248, in suspend^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager dom.managedSave(0)
  ^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager   File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 183, in doit ^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager   result = proxy_call(self._autowrap, f, *args, **kwargs)
  ^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager  File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 141, in proxy_call    rv = execute(f, *args, **kwargs)
  ^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager  File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 122, in execute six.reraise(c, e, tb)
  ^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager  File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 80, in tworker   rv = meth(*args, **kwargs)
  ^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager  File "/usr/local/lib/python2.7/dist-packages/libvirt.py", line 1167, in managedSave
  ^[[01;31m2015-05-21 04:48:29.179 TRACE nova.compute.manager   if ret == -1: raise libvirtError ('virDomainManagedSave() failed', dom=self)
                  libvirtError: operation failed: domain save job: unexpectedly failed

  ubuntu@dev1:~$ nova list
  +--------------------------------------+-------+-----------+------------+-------------+------------------------------------------------------+
  | ID                                   | Name  | Status    | Task State | Power State | Networks                                             |
  +--------------------------------------+-------+-----------+------------+-------------+------------------------------------------------------+
  | 0096094f-b854-4a56-bb35-c112cdbe20fb | test5 | ERROR     | -          | Running     | private=10.0.0.5, fd3b:f9:a091:0:f816:3eff:fe8e:dc62 |
  +--------------------------------------+-------+-----------+------------+-------------+------------------------------------------------------+

  "virsh list" can see the instance is running
  ubuntu@dev1:~$ virsh list --all
   Id    Name                           State
  ----------------------------------------------------
   2     instance-00000003              running

  Expected result:
  Even though occurs excption, the status of instance still should be "ACTIVE".

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