yahoo-eng-team team mailing list archive

[Roman Jerger <1339039@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

glance-api is unable to initilize rbd storage backend.

Running glance-api with only rbd backend configured and disabling all
the other backends causes the service to exit with the following error:

root@control:~# glance-api
  2 2014-07-07 17:48:03.950 1874 DEBUG glance.store [-] Attempting to import store glance.store.rbd.Store _get_store_class /usr/lib/python2.7/dist-packages/gl    ance/store/__init__.py:168
  3 2014-07-07 17:48:03.955 1874 DEBUG glance.store [-] Registering store <class 'glance.store.rbd.Store'> with schemes ('rbd',) create_stores /usr/lib/python    2.7/dist-packages/glance/store/__init__.py:210
  4 2014-07-07 17:48:03.955 1874 DEBUG glance.store.base [-] Late loading location class glance.store.rbd.StoreLocation get_store_location_class /usr/lib/pyth    on2.7/dist-packages/glance/store/base.py:80
  5 2014-07-07 17:48:03.956 1874 DEBUG glance.store.location [-] Registering scheme rbd with {'store_class': <class 'glance.store.rbd.Store'>, 'location_class    ': <class 'glance.store.rbd.StoreLocation'>} register_scheme_map /usr/lib/python2.7/dist-packages/glance/store/location.py:86
  6 2014-07-07 17:48:03.958 1874 DEBUG glance.api.policy [-] Loading policy from /etc/glance/policy.json _read_policy_file /usr/lib/python2.7/dist-packages/gl    ance/api/policy.py:106
  7 2014-07-07 17:48:03.959 1874 DEBUG glance.api.policy [-] Loaded policy rules: {u'get_task': '@', u'get_image_location': '@', u'add_image': '@', u'modify_i    mage': '@', u'manage_image_cache': 'role:admin', u'delete_member': '@', u'get_images': '@', u'delete_image': '@', u'publicize_image': '@', u'get_member':     '@', u'add_member': '@', u'set_image_location': '@', u'get_image': '@', u'modify_member': '@', u'context_is_admin': 'role:admin', u'upload_image': '@', u'    modify_task': '@', u'get_members': '@', u'get_tasks': '@', u'add_task': '@', u'default': '@', u'delete_image_location': '@', u'copy_from': '@', u'download    _image': '@'} load_rules /usr/lib/python2.7/dist-packages/glance/api/policy.py:85
  8 ERROR: Store for scheme glance.store.rbd.Store not found

root@control:~# cat /etc/glance/glance-api.conf
[...]
default_store = glance.store.rbd.Store
known_stores = glance.store.rbd.Store
[...]

root@control:~# dpkg -l | grep glance
ii  glance                              1:2014.1-0ubuntu1                  all          OpenStack Image Registry and Delivery Service - Daemons
ii  glance-api                          1:2014.1-0ubuntu1                  all          OpenStack Image Registry and Delivery Service - API
ii  glance-common                       1:2014.1-0ubuntu1                  all          OpenStack Image Registry and Delivery Service - Common
ii  glance-registry                     1:2014.1-0ubuntu1                  all          OpenStack Image Registry and Delivery Service - Registry
ii  python-glance                       1:2014.1-0ubuntu1                  all          OpenStack Image Registry and Delivery Service - Python library
ii  python-glanceclient                 1:0.12.0-0ubuntu1                  all          Client library for Openstack glance server.

After some time of debugging I figured out, that the problem is cased by
the function "get_store_from_scheme(context, scheme, loc=None)".  The
argument "context" is evaluated to "glance.store.rbd.Store" not to
"rbd".

Applying the attached quick and dirty fix patch has solved the problem.

Further investigation needed.

** Affects: glance
     Importance: Undecided
         Status: New

** Patch added: "glance.store.__init__.py.patch"
   https://bugs.launchpad.net/bugs/1339039/+attachment/4147975/+files/glance.store.__init__.py.patch

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https://bugs.launchpad.net/bugs/1339039

Title:
  ERROR: Store for scheme glance.store.rbd.Store not found

Status in OpenStack Image Registry and Delivery Service (Glance):
  New

Bug description:
  glance-api is unable to initilize rbd storage backend.

  Running glance-api with only rbd backend configured and disabling all
  the other backends causes the service to exit with the following
  error:

  root@control:~# glance-api
    2 2014-07-07 17:48:03.950 1874 DEBUG glance.store [-] Attempting to import store glance.store.rbd.Store _get_store_class /usr/lib/python2.7/dist-packages/gl    ance/store/__init__.py:168
    3 2014-07-07 17:48:03.955 1874 DEBUG glance.store [-] Registering store <class 'glance.store.rbd.Store'> with schemes ('rbd',) create_stores /usr/lib/python    2.7/dist-packages/glance/store/__init__.py:210
    4 2014-07-07 17:48:03.955 1874 DEBUG glance.store.base [-] Late loading location class glance.store.rbd.StoreLocation get_store_location_class /usr/lib/pyth    on2.7/dist-packages/glance/store/base.py:80
    5 2014-07-07 17:48:03.956 1874 DEBUG glance.store.location [-] Registering scheme rbd with {'store_class': <class 'glance.store.rbd.Store'>, 'location_class    ': <class 'glance.store.rbd.StoreLocation'>} register_scheme_map /usr/lib/python2.7/dist-packages/glance/store/location.py:86
    6 2014-07-07 17:48:03.958 1874 DEBUG glance.api.policy [-] Loading policy from /etc/glance/policy.json _read_policy_file /usr/lib/python2.7/dist-packages/gl    ance/api/policy.py:106
    7 2014-07-07 17:48:03.959 1874 DEBUG glance.api.policy [-] Loaded policy rules: {u'get_task': '@', u'get_image_location': '@', u'add_image': '@', u'modify_i    mage': '@', u'manage_image_cache': 'role:admin', u'delete_member': '@', u'get_images': '@', u'delete_image': '@', u'publicize_image': '@', u'get_member':     '@', u'add_member': '@', u'set_image_location': '@', u'get_image': '@', u'modify_member': '@', u'context_is_admin': 'role:admin', u'upload_image': '@', u'    modify_task': '@', u'get_members': '@', u'get_tasks': '@', u'add_task': '@', u'default': '@', u'delete_image_location': '@', u'copy_from': '@', u'download    _image': '@'} load_rules /usr/lib/python2.7/dist-packages/glance/api/policy.py:85
    8 ERROR: Store for scheme glance.store.rbd.Store not found

  root@control:~# cat /etc/glance/glance-api.conf
  [...]
  default_store = glance.store.rbd.Store
  known_stores = glance.store.rbd.Store
  [...]

  root@control:~# dpkg -l | grep glance
  ii  glance                              1:2014.1-0ubuntu1                  all          OpenStack Image Registry and Delivery Service - Daemons
  ii  glance-api                          1:2014.1-0ubuntu1                  all          OpenStack Image Registry and Delivery Service - API
  ii  glance-common                       1:2014.1-0ubuntu1                  all          OpenStack Image Registry and Delivery Service - Common
  ii  glance-registry                     1:2014.1-0ubuntu1                  all          OpenStack Image Registry and Delivery Service - Registry
  ii  python-glance                       1:2014.1-0ubuntu1                  all          OpenStack Image Registry and Delivery Service - Python library
  ii  python-glanceclient                 1:0.12.0-0ubuntu1                  all          Client library for Openstack glance server.

  After some time of debugging I figured out, that the problem is cased
  by the function "get_store_from_scheme(context, scheme, loc=None)".
  The argument "context" is evaluated to "glance.store.rbd.Store" not to
  "rbd".

  Applying the attached quick and dirty fix patch has solved the
  problem.

  Further investigation needed.

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