yahoo-eng-team team mailing list archive

[赵明俊 <1697391@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Description
===========
When use rbd as nova and glance store backend, create an instance will directly clone image from glance， but the image did not do flatten， so When a image boot an instance, the image can not be deleted because it is in use.

There is a glance image property named 'img_linked_clone', used to
control the association of image and instance, but it can not use in
libvirt. if flatten the image after instance created, the association of
image and instance will be broken, image and instance will be
independent of each other.

Steps to reproduce
==================
A chronological list of steps which will bring off the
issue you noticed:
1.use rbd as the nova and glance backend.
2.upload a raw image.
3.use this image create an instance
4.try to delete the image

Expected result
===============
the image will be deleted.

Actual result
=============
the image can not be deleted

Environment
===========

TripleO（newton)
devstack(pike) with rbd

** Affects: nova
     Importance: Undecided
         Status: New


** Tags: ceph libvirt

** Tags added: rbd

** Tags removed: rbd
** Tags added: ceph

** Tags added: libvirt

** Description changed:

  Description
  ===========
  When use rbd as nova and glance store backend, create an instance will directly clone image from glance， but the image did not do flatten， so When a image boot an instance, the image can not be deleted because it is in use.
  
  There is a glance image property named 'img_linked_clone', used to
  control the association of image and instance, but it can not use in
  libvirt. if flatten the image after instance created, the association of
  image and instance will be broken, image and instance will be
  independent of each other.
  
  Steps to reproduce
  ==================
  A chronological list of steps which will bring off the
  issue you noticed:
  1.use rbd as the nova and glance backend.
  2.upload a raw image.
  3.use this image create an instance
  4.try to delete the image
  
  Expected result
  ===============
  the image will be deleted.
  
  Actual result
  =============
  the image can not be deleted
+ 
+ Environment
+ ===========
+ 
+ TripleO（newton)
+ devstack(pike) with rbd

-- 
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https://bugs.launchpad.net/bugs/1697391

Title:
  Can not delete the image has been launched instance when use rbd

Status in OpenStack Compute (nova):
  New

Bug description:
  Description
  ===========
  When use rbd as nova and glance store backend, create an instance will directly clone image from glance， but the image did not do flatten， so When a image boot an instance, the image can not be deleted because it is in use.

  There is a glance image property named 'img_linked_clone', used to
  control the association of image and instance, but it can not use in
  libvirt. if flatten the image after instance created, the association
  of image and instance will be broken, image and instance will be
  independent of each other.

  Steps to reproduce
  ==================
  A chronological list of steps which will bring off the
  issue you noticed:
  1.use rbd as the nova and glance backend.
  2.upload a raw image.
  3.use this image create an instance
  4.try to delete the image

  Expected result
  ===============
  the image will be deleted.

  Actual result
  =============
  the image can not be deleted

  Environment
  ===========

  TripleO（newton)
  devstack(pike) with rbd

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