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[Qin Zhao <chaochin@xxxxxxxxx>]

** Project changed: nova => neutron

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

** Also affects: python-neutronclient
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1369871

Title:
  HTTP 500 is returned when using an invalid ip for defined network to
  attach interface

Status in OpenStack Neutron (virtual network service):
  New
Status in OpenStack Compute (Nova):
  New
Status in Python client library for Neutron:
  New

Bug description:
  When I post an 'attach interface' request to Nova with an invalid ip
  for defined network, Nova returns an HTTP 500 error and a confusing
  error message.

  REQ: curl -i 'http://10.90.10.24:8774/v2/19abae5746b242d489d1c2862b228d8b/servers/4e863fad-e868-48a1-8735-2da9a38561e8/os-interface' -X POST -H "Accept: application/json" -H "Content-Type: application/json" -H "User-Agent: python-novaclient" -H "X-Auth-Project-Id: Public" -H "X-Auth-Token: {SHA1}ce7267ae4e84b8f8457ab6a54c353a3e7c7d051c" -d '{"interfaceAttachment": {"fixed_ips": [{"ip_address": "1.1.1.1"}], "net_id": "173854d5-333f-4c78-b5a5-10d2e9c8d827"}}'
  INFO (connectionpool:187) Starting new HTTP connection (1): 10.90.10.24
  DEBUG (connectionpool:357) "POST /v2/19abae5746b242d489d1c2862b228d8b/servers/4e863fad-e868-48a1-8735-2da9a38561e8/os-interface HTTP/1.1" 500 128
  RESP: [500] {'date': 'Tue, 16 Sep 2014 06:26:54 GMT', 'content-length': '128', 'content-type': 'application/json; charset=UTF-8', 'x-compute-request-id': 'req-f69db2a5-a777-471a-b2b5-00aa2ecd2892'}
  RESP BODY: {"computeFault": {"message": "The server has either erred or is incapable of performing the requested operation.", "code": 500}}

  
  In fact, Nova works perfect well. The error is caused by my incorrect input. Nova should be able to address this incorrect input, and return an HTTP 400 error in order to to inform the user to correct the request.

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