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[Alan Pevec <1233026@xxxxxxxxxxxxxxxxxx>]

** Also affects: nova/havana
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1233026

Title:
  exception.InstanceIsLocked is not caught in start and stop server api

Status in OpenStack Compute (Nova):
  Fix Released
Status in OpenStack Compute (nova) havana series:
  New

Bug description:
  when port nova-v3-test:
  test_server_actions.ServerActionsV3TestXML.test_lock_unlock_server. We
  found the exception.InstanceIsLocked is not caught in start and stop
  server API.

  
  the following is the nova log:

  2013-09-30 15:03:29.306 ^[[00;32mDEBUG nova.api.openstack.wsgi [^[[01;36mreq-d791baac-2015-4e65-8d02-720b0944e824 ^[[00;36mdemo demo^[[00;32m] ^[[01;35m^[[00;32mAction: 'action', body: <?xml version="1.0" encoding="UTF-8"?>
  <stop xmlns="http://docs.openstack.org/compute/api/v1.1"/>^[[00m ^[[00;33mfrom (pid=23798) _process_stack /opt/stack/nova/nova/api/openstack/wsgi.py:935^[[00m
  2013-09-30 15:03:29.307 ^[[00;32mDEBUG nova.api.openstack.wsgi [^[[01;36mreq-d791baac-2015-4e65-8d02-720b0944e824 ^[[00;36mdemo demo^[[00;32m] ^[[01;35m^[[00;32mCalling method <bound method ServersController._stop_server of <nova.api.openstack.compute.plugins.v3.servers.ServersController object at 0x577c250>>^[[00m ^[[00;33mfrom (pid=23798) _process_stack /opt/stack/nova/nova/api/openstack/wsgi.py:936^[[00m
  2013-09-30 15:03:29.339 ^[[00;32mDEBUG nova.api.openstack.compute.plugins.v3.servers [^[[01;36mreq-d791baac-2015-4e65-8d02-720b0944e824 ^[[00;36mdemo demo^[[00;32m] ^[[01;35m[instance: cd4fec81-d2e8-43cd-ab5d-47da72dd90fa] ^[[00;32mstop instance^[[00m ^[[00;33mfrom (pid=23798) _stop_server /opt/stack/nova/nova/api/openstack/compute/plugins/v3/servers.py:1372^[[00m
  2013-09-30 15:03:29.340 ^[[01;31mERROR nova.api.openstack.extensions [^[[01;36mreq-d791baac-2015-4e65-8d02-720b0944e824 ^[[00;36mdemo demo^[[01;31m] ^[[01;35m^[[01;31mUnexpected exception in API method^[[00m
  ^[[01;31m2013-09-30 15:03:29.340 TRACE nova.api.openstack.extensions ^[[01;35m^[[00mTraceback (most recent call last):
  ^[[01;31m2013-09-30 15:03:29.340 TRACE nova.api.openstack.extensions ^[[01;35m^[[00m  File "/opt/stack/nova/nova/api/openstack/extensions.py", line 469, in wrapped
  ^[[01;31m2013-09-30 15:03:29.340 TRACE nova.api.openstack.extensions ^[[01;35m^[[00m    return f(*args, **kwargs)
  ^[[01;31m2013-09-30 15:03:29.340 TRACE nova.api.openstack.extensions ^[[01;35m^[[00m  File "/opt/stack/nova/nova/api/openstack/compute/plugins/v3/servers.py", line 1374, in _stop_server
  ^[[01;31m2013-09-30 15:03:29.340 TRACE nova.api.openstack.extensions ^[[01;35m^[[00m    self.compute_api.stop(context, instance)
  ^[[01;31m2013-09-30 15:03:29.340 TRACE nova.api.openstack.extensions ^[[01;35m^[[00m  File "/opt/stack/nova/nova/compute/api.py", line 198, in wrapped
  ^[[01;31m2013-09-30 15:03:29.340 TRACE nova.api.openstack.extensions ^[[01;35m^[[00m    return func(self, context, target, *args, **kwargs)
  ^[[01;31m2013-09-30 15:03:29.340 TRACE nova.api.openstack.extensions ^[[01;35m^[[00m  File "/opt/stack/nova/nova/compute/api.py", line 187, in inner
  ^[[01;31m2013-09-30 15:03:29.340 TRACE nova.api.openstack.extensions ^[[01;35m^[[00m    raise exception.InstanceIsLocked(instance_uuid=instance['uuid'])
  ^[[01;31m2013-09-30 15:03:29.340 TRACE nova.api.openstack.extensions ^[[01;35m^[[00mInstanceIsLocked: Instance cd4fec81-d2e8-43cd-ab5d-47da72dd90fa is locked
  ^[[01;31m2013-09-30 15:03:29.340 TRACE nova.api.openstack.extensions ^[[01;35m^[[00m
  2013-09-30 15:03:29.341 ^[[00;36mINFO nova.api.openstack.wsgi [^[[01;36mreq-d791baac-2015-4e65-8d02-720b0944e824 ^[[00;36mdemo demo^[[00;36m] ^[[01;35m^[[00;36mHTTP exception thrown: Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
  <class 'nova.exception.InstanceIsLocked'>^[[00m

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