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[Bug 1154138] Re: Nova aggregate API throws an uncaught exception on invalid host

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Wed, 20 Mar 2013 16:14:02 -0000
Reply-to: Bug 1154138 <1154138@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** Changed in: nova
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1154138

Title:
  Nova aggregate API throws an uncaught exception on invalid host

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  Giving an invalid host name when trying to remove a host from an
  aggregate results in an uncaught exception thrown in the nova-api log.

  2013-03-12 15:59:40.482 ERROR nova.api.openstack [req-84e69291-229e-4c5d-9bc5-7e78fe5b68ef admin admin] Caught error: Compute host nohost could not be found.
  2013-03-12 15:59:40.482 TRACE nova.api.openstack Traceback (most recent call last):
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/opt/stack/nova/nova/api/openstack/__init__.py", line 81, in __call__
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     return req.get_response(self.application)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/usr/local/lib/python2.7/dist-packages/webob/request.py", line 1296, in send
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     application, catch_exc_info=False)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/usr/local/lib/python2.7/dist-packages/webob/request.py", line 1260, in call_application
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     app_iter = application(self.environ, start_response)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/usr/local/lib/python2.7/dist-packages/webob/dec.py", line 144, in __call__
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     return resp(environ, start_response)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/usr/local/lib/python2.7/dist-packages/keystoneclient/middleware/auth_token.py", line 298, in __call__
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     return self.app(env, start_response)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/usr/local/lib/python2.7/dist-packages/webob/dec.py", line 144, in __call__
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     return resp(environ, start_response)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/usr/local/lib/python2.7/dist-packages/webob/dec.py", line 144, in __call__
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     return resp(environ, start_response)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/usr/local/lib/python2.7/dist-packages/webob/dec.py", line 144, in __call__
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     return resp(environ, start_response)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/routes/middleware.py", line 131, in __call__
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     response = self.app(environ, start_response)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/usr/local/lib/python2.7/dist-packages/webob/dec.py", line 144, in __call__
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     return resp(environ, start_response)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/usr/local/lib/python2.7/dist-packages/webob/dec.py", line 130, in __call__
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     resp = self.call_func(req, *args, **self.kwargs)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/usr/local/lib/python2.7/dist-packages/webob/dec.py", line 195, in call_func
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     return self.func(req, *args, **kwargs)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/opt/stack/nova/nova/api/openstack/wsgi.py", line 895, in __call__
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     content_type, body, accept)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/opt/stack/nova/nova/api/openstack/wsgi.py", line 955, in _process_stack
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     action_result = self.dispatch(meth, request, action_args)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/opt/stack/nova/nova/api/openstack/wsgi.py", line 1035, in dispatch
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     return method(req=request, **action_args)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/opt/stack/nova/nova/api/openstack/compute/contrib/aggregates.py", line 138, in action
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     return _actions[action](req, id, data)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/opt/stack/nova/nova/api/openstack/compute/contrib/aggregates.py", line 40, in wrapped
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     return fn(self, req, id, host, *args, **kwargs)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/opt/stack/nova/nova/api/openstack/compute/contrib/aggregates.py", line 169, in _remove_host
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     aggregate = self.api.remove_host_from_aggregate(context, id, host)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/opt/stack/nova/nova/compute/api.py", line 2672, in remove_host_from_aggregate
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     self.db.service_get_by_compute_host(context, host_name)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/opt/stack/nova/nova/db/api.py", line 150, in service_get_by_compute_host
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     return IMPL.service_get_by_compute_host(context, host)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/opt/stack/nova/nova/db/sqlalchemy/api.py", line 95, in wrapper
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     return f(*args, **kwargs)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack   File "/opt/stack/nova/nova/db/sqlalchemy/api.py", line 390, in service_get_by_compute_host
  2013-03-12 15:59:40.482 TRACE nova.api.openstack     raise exception.ComputeHostNotFound(host=host)
  2013-03-12 15:59:40.482 TRACE nova.api.openstack ComputeHostNotFound: Compute host nohost could not be found.
  2013-03-12 15:59:40.482 TRACE nova.api.openstack

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