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[Henry Spanka <1787588@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Description
===========
Trying to migrate an instance from local storage to a hypervisor that is backed by RBD results in the error: invalid spec 'b05eafa0-e7da-4637-a47c-cddca5cc381c_/var/lib/nova/instances/b05eafa0-e7da-4637-a
47c-cddca5cc381c/disk'

Steps to reproduce
==================
* Create an instance from an image that is not on a rbd backend on a node that is configured to store the instance disk locally (as qcow2)
* Live-Migrate the instance to a node that is configured to use rbd as backend.
openstack server migrate --live compute-rbd --block-migration UUID

Expected result
===============
Migration completes successfully

Actual result
=============
rbd import command of base image fails with: Stderr: u"rbd: --pool is deprecated for import, use --dest-pool\nrbd: invalid spec 'b05eafa0-e7da-4637-a47c-cddca5cc381c_/var/lib/nova/instances/b05eafa0-e7da-4637-a
47c-cddca5cc381c/disk'\n"

The command run is: rbd import --pool vms
/var/lib/nova/instances/_base/4d3facc86af22a33b3ca0eb95c1953c76b72bfaa
b05eafa0-e7da-4637-a47c-
cddca5cc381c_/var/lib/nova/instances/b05eafa0-e7da-4637-a47c-
cddca5cc381c/disk --image-format=2 --id cinder --conf
/etc/ceph/ceph.conf

A trace is attached below.

Environment
===========
Nova 10.1.0
CentOS 7.5
Ceph 12.2

Is there any way to migrate a local instance to a rbd backend or is this
not supported?

** Affects: nova
     Importance: Undecided
         Status: New


** Tags: ceph live-migration nova

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https://bugs.launchpad.net/bugs/1787588

Title:
  Live Migration from Local Storage to RBD: rbd import: Invalid Spec

Status in OpenStack Compute (nova):
  New

Bug description:
  Description
  ===========
  Trying to migrate an instance from local storage to a hypervisor that is backed by RBD results in the error: invalid spec 'b05eafa0-e7da-4637-a47c-cddca5cc381c_/var/lib/nova/instances/b05eafa0-e7da-4637-a
  47c-cddca5cc381c/disk'

  Steps to reproduce
  ==================
  * Create an instance from an image that is not on a rbd backend on a node that is configured to store the instance disk locally (as qcow2)
  * Live-Migrate the instance to a node that is configured to use rbd as backend.
  openstack server migrate --live compute-rbd --block-migration UUID

  Expected result
  ===============
  Migration completes successfully

  Actual result
  =============
  rbd import command of base image fails with: Stderr: u"rbd: --pool is deprecated for import, use --dest-pool\nrbd: invalid spec 'b05eafa0-e7da-4637-a47c-cddca5cc381c_/var/lib/nova/instances/b05eafa0-e7da-4637-a
  47c-cddca5cc381c/disk'\n"

  The command run is: rbd import --pool vms
  /var/lib/nova/instances/_base/4d3facc86af22a33b3ca0eb95c1953c76b72bfaa
  b05eafa0-e7da-4637-a47c-
  cddca5cc381c_/var/lib/nova/instances/b05eafa0-e7da-4637-a47c-
  cddca5cc381c/disk --image-format=2 --id cinder --conf
  /etc/ceph/ceph.conf

  A trace is attached below.

  Environment
  ===========
  Nova 10.1.0
  CentOS 7.5
  Ceph 12.2

  Is there any way to migrate a local instance to a rbd backend or is
  this not supported?

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