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[Akihiro Motoki <1207914@xxxxxxxxxxxxxxxxxx>]

When the bug was reported, there was no action in neutronclient side.
After that, neutron exception handling was improved and now neutronclient raises OverQuotaClient exception and nova catches it.

** Changed in: python-neutronclient
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1207914

Title:
  nova stacktraces when neutron throws a quota error

Status in OpenStack Compute (nova):
  Fix Released
Status in python-neutronclient:
  Fix Released

Bug description:
  From nova-compute log when exceeding a quota.

  /json; charset=UTF-8'} {"NeutronError": "Quota exceeded for resources: ['port']"}
   http_log_resp /opt/stack/python-neutronclient/neutronclient/common/utils.py:179
  2013-08-02 21:30:38.115 30306 DEBUG neutronclient.v2_0.client [-] Error message: {"NeutronError": "Quota exceeded for resources: ['port']"} _handle_fault_response /opt/stack/python-neutronclient/neutronclient/v2_0/client.py:756
  2013-08-02 21:30:38.115 30306 ERROR nova.compute.manager [-] Instance failed network setup after 1 attempt(s)
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager Traceback (most recent call last):
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager   File "/opt/stack/nova/nova/compute/manager.py", line 1280, in _allocate_network_async
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager     security_groups=security_groups)
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager   File "/opt/stack/nova/nova/network/api.py", line 49, in wrapper
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager     res = f(self, context, *args, **kwargs)
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager   File "/opt/stack/nova/nova/network/neutronv2/api.py", line 310, in allocate_for_instance
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager     LOG.exception(msg, port_id)
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager   File "/opt/stack/nova/nova/network/neutronv2/api.py", line 287, in allocate_for_instance
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager     port_client.create_port(port_req_body)['port']['id'])
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager   File "/opt/stack/python-neutronclient/neutronclient/v2_0/client.py", line 108, in with_params
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager     ret = self.function(instance, *args, **kwargs)
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager   File "/opt/stack/python-neutronclient/neutronclient/v2_0/client.py", line 276, in create_port
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager     return self.post(self.ports_path, body=body)
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager   File "/opt/stack/python-neutronclient/neutronclient/v2_0/client.py", line 872, in post
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager     headers=headers, params=params)
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager   File "/opt/stack/python-neutronclient/neutronclient/v2_0/client.py", line 795, in do_request
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager     self._handle_fault_response(status_code, replybody)
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager   File "/opt/stack/python-neutronclient/neutronclient/v2_0/client.py", line 765, in _handle_fault_response
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager     exception_handler_v20(status_code, des_error_body)
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager   File "/opt/stack/python-neutronclient/neutronclient/v2_0/client.py", line 81, in exception_handler_v20
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager     message=error_dict)
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager NeutronClientException: Quota exceeded for resources: ['port']
  2013-08-02 21:30:38.115 30306 TRACE nova.compute.manager
  Traceback (most recent call last):
    File "/usr/local/lib/python2.7/dist-packages/eventlet/hubs/poll.py", line 97, in wait
      readers.get(fileno, noop).cb(fileno)
    File "/usr/local/lib/python2.7/dist-packages/eventlet/greenthread.py", line 194, in main

  
  Furthermore nova doesn't show its a quota issue but instead says:

  | fault                                | {u'message': u'NoValidHost',
  u'code': 500, u'created': u'2013-08-02T21:31:04Z'} |

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