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[Bug 1193113] Re: DevicePathInUse exception in devstack-vm-quantum

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Sean Dague <sean@xxxxxxxxx>
Date: Thu, 12 Dec 2013 19:55:42 -0000
Reply-to: Bug 1193113 <1193113@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** No longer affects: tempest

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https://bugs.launchpad.net/bugs/1193113

Title:
  DevicePathInUse exception in devstack-vm-quantum

Status in OpenStack Compute (Nova):
  Confirmed

Bug description:
  I just got this during verification of one of my changes.  I don't
  think it's related to the change
  (https://review.openstack.org/#/c/33478/) so I'm reporting it here
  before I reverify.

  Full log: http://logs.openstack.org/33478/1/gate/gate-tempest-
  devstack-vm-quantum/32609/logs/screen-n-cpu.txt.gz

  Also, this was for stable/grizzly.  I'm not sure how to specify that
  in LP.

  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/new/nova/nova/openstack/common/rpc/amqp.py", line 430, in _process_data
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp     rval = self.proxy.dispatch(ctxt, version, method, **args)
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/new/nova/nova/openstack/common/rpc/dispatcher.py", line 133, in dispatch
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp     return getattr(proxyobj, method)(ctxt, **kwargs)
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/new/nova/nova/exception.py", line 117, in wrapped
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp     temp_level, payload)
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp     self.gen.next()
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/new/nova/nova/exception.py", line 94, in wrapped
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp     return f(self, context, *args, **kw)
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/new/nova/nova/compute/manager.py", line 209, in decorated_function
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp     pass
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp     self.gen.next()
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/new/nova/nova/compute/manager.py", line 195, in decorated_function
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp     return function(self, context, *args, **kwargs)
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/new/nova/nova/compute/manager.py", line 237, in decorated_function
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp     e, sys.exc_info())
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp     self.gen.next()
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/new/nova/nova/compute/manager.py", line 224, in decorated_function
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp     return function(self, context, *args, **kwargs)
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/new/nova/nova/compute/manager.py", line 2854, in reserve_block_device_name
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp     return do_reserve()
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/new/nova/nova/openstack/common/lockutils.py", line 242, in inner
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp     retval = f(*args, **kwargs)
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/new/nova/nova/compute/manager.py", line 2843, in do_reserve
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp     context, instance, bdms, device)
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/new/nova/nova/compute/utils.py", line 165, in get_device_name_for_instance
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp     raise exception.DevicePathInUse(path=device)
  2013-06-20 19:26:25.981 23879 TRACE nova.openstack.common.rpc.amqp DevicePathInUse: The supplied device path (/dev/vdb) is in use.

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