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[Mike Fedosin <1469817@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Server API expects to catch exception declared at
glance/common/exception.py, but actually risen exceptions have the same
names but are declared at different module, glance_store/exceptions.py
and thus are never caught.

For example, If exception is raised here:
https://github.com/openstack/glance_store/blob/stable/kilo/glance_store/_drivers/rbd.py#L316
, it will never be caught here
https://github.com/openstack/glance/blob/stable/kilo/glance/api/v1/images.py#L1107
, because first one is instance of
https://github.com/openstack/glance_store/blob/stable/kilo/glance_store/exceptions.py#L198
, but Glance waits for
https://github.com/openstack/glance/blob/stable/kilo/glance/common/exception.py#L293

There are many cases of that issue. The investigation continues.

** Affects: glance
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1469817

Title:
  Glance doesn't handle exceptions from glance_store

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

Bug description:
  Server API expects to catch exception declared at
  glance/common/exception.py, but actually risen exceptions have the
  same names but are declared at different module,
  glance_store/exceptions.py and thus are never caught.

  For example, If exception is raised here:
  https://github.com/openstack/glance_store/blob/stable/kilo/glance_store/_drivers/rbd.py#L316
  , it will never be caught here
  https://github.com/openstack/glance/blob/stable/kilo/glance/api/v1/images.py#L1107
  , because first one is instance of
  https://github.com/openstack/glance_store/blob/stable/kilo/glance_store/exceptions.py#L198
  , but Glance waits for
  https://github.com/openstack/glance/blob/stable/kilo/glance/common/exception.py#L293

  There are many cases of that issue. The investigation continues.

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