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[Bug 1459399] [NEW] Nova + Ceph: resize-instance doesn't resize anything, lies about it

 

Public bug reported:

Resizing Ceph-backed instances seems to be completely non-functional

Steps to reproduce (in devstack with ceph enabled):

1.  Boot an instance against m1.nano
2.  Run "rbd -p vms ls -l" and note the size of the volume
3.  Resize the instance to m1.tiny, and confirm the resize
4.  Run "rbd -p vms ls -l" and note the size of the volume

Expected behavior:

Nova should report success, and the volume should report using ~1GB in
size

Actual behavior:

Nova reports success, but the image does not change size.

** Affects: nova
     Importance: Undecided
         Status: New

** Description changed:

  Resizing Ceph-backed instances seems to be completely non-functional
  
- Steps to reproduce:
+ Steps to reproduce (in devstack with ceph enabled):
  
  1.  Boot an instance against m1.nano
  2.  Run "rbd -p vms ls -l" and note the size of the volume
  3.  Resize the instance to m1.small, and confirm the resize
  4.  Run "rbd -p vms ls -l" and note the size of the volume
  
  Expected behavior:
  
  Nova should report success, and the volume should report using ~20GB in
  size
  
  Actual behavior:
  
  Nova reports success, but the image does not change size.

** Description changed:

  Resizing Ceph-backed instances seems to be completely non-functional
  
  Steps to reproduce (in devstack with ceph enabled):
  
  1.  Boot an instance against m1.nano
  2.  Run "rbd -p vms ls -l" and note the size of the volume
- 3.  Resize the instance to m1.small, and confirm the resize
+ 3.  Resize the instance to m1.tiny, and confirm the resize
  4.  Run "rbd -p vms ls -l" and note the size of the volume
  
  Expected behavior:
  
- Nova should report success, and the volume should report using ~20GB in
+ Nova should report success, and the volume should report using ~1GB in
  size
  
  Actual behavior:
  
  Nova reports success, but the image does not change size.

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https://bugs.launchpad.net/bugs/1459399

Title:
  Nova + Ceph: resize-instance doesn't resize anything, lies about it

Status in OpenStack Compute (Nova):
  New

Bug description:
  Resizing Ceph-backed instances seems to be completely non-functional

  Steps to reproduce (in devstack with ceph enabled):

  1.  Boot an instance against m1.nano
  2.  Run "rbd -p vms ls -l" and note the size of the volume
  3.  Resize the instance to m1.tiny, and confirm the resize
  4.  Run "rbd -p vms ls -l" and note the size of the volume

  Expected behavior:

  Nova should report success, and the volume should report using ~1GB in
  size

  Actual behavior:

  Nova reports success, but the image does not change size.

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https://bugs.launchpad.net/nova/+bug/1459399/+subscriptions


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References