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[Launchpad Bug Tracker <1720128@xxxxxxxxxxxxxxxxxx>]

[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]

** Changed in: nova
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1720128

Title:
  [ocata] second instance resize fails on same host

Status in OpenStack Compute (nova):
  Expired

Bug description:
  With `allow_resize_to_same_host=true` nova removes instance directory
  on host after confirming resize.

  First resize works fine, although directore is removed.
  Second resize fails, because nova cannot mv instance dir to instance_resize.
  Workaround: power cycle instance after resize, then directory is created again.

  Tested on volume-backed instances (with Ceph).
  Env:
   Ubuntu Xenial
   nova-compute 15.0.2
   libvirt 2.5.0-3

  Steps to reproduce:
  - set allow_resize_to_same_host=true in nova.conf & restart nova services
  - create instance (in my case: boot from volume, cinder storage in Ceph)
  - watch /var/lib/nova/instances
  - resize instance
  - observe change in /var/lib/nova/instances
  - confirm resize
  - both directories were deleted
  - resized instance is running

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