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[Bug 1621452] [NEW] need handle DevicePathInUse in attach_volume

 

Public bug reported:

Attach a volume with used name will got error, the root cause is we
didn't handle DevicePathInUse

2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions     instance, bdms, new_bdm)
2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions
2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1667, in _get_device_name_for_instance
2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions     instance, bdms, block_device_obj.get("device_name"))
2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions
2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions   File "/usr/lib/python2.7/site-packages/nova/compute/utils.py", line 104, in get_device_name_for_instance
2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions     mappings['root'], device)
2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions
2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions   File "/usr/lib/python2.7/site-packages/nova/compute/utils.py", line 185, in get_next_device_name
2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions     raise exception.DevicePathInUse(path=device)
2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions
2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions DevicePathInUse: The supplied device path (/dev/sda) is in use.
2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions
2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions
2016-09-06 08:34:17.223 5177 INFO nova.api.openstack.wsgi [req-665260fe-9434-4259-a658-f1eb30948522 6a1f271818af46f3ae3c99d09a1efdff 134b4b70bc464c0db32624ad256a6563 - - -] HTTP exception thrown: Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.

** Affects: nova
     Importance: Undecided
     Assignee: jichenjc (jichenjc)
         Status: New

** Changed in: nova
     Assignee: (unassigned) => jichenjc (jichenjc)

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https://bugs.launchpad.net/bugs/1621452

Title:
  need handle DevicePathInUse in attach_volume

Status in OpenStack Compute (nova):
  New

Bug description:
  Attach a volume with used name will got error, the root cause is we
  didn't handle DevicePathInUse

  2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions     instance, bdms, new_bdm)
  2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions
  2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1667, in _get_device_name_for_instance
  2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions     instance, bdms, block_device_obj.get("device_name"))
  2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions
  2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions   File "/usr/lib/python2.7/site-packages/nova/compute/utils.py", line 104, in get_device_name_for_instance
  2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions     mappings['root'], device)
  2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions
  2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions   File "/usr/lib/python2.7/site-packages/nova/compute/utils.py", line 185, in get_next_device_name
  2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions     raise exception.DevicePathInUse(path=device)
  2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions
  2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions DevicePathInUse: The supplied device path (/dev/sda) is in use.
  2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions
  2016-09-06 08:34:17.148 5177 ERROR nova.api.openstack.extensions
  2016-09-06 08:34:17.223 5177 INFO nova.api.openstack.wsgi [req-665260fe-9434-4259-a658-f1eb30948522 6a1f271818af46f3ae3c99d09a1efdff 134b4b70bc464c0db32624ad256a6563 - - -] HTTP exception thrown: Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.

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