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[Elod Illes <1889108@xxxxxxxxxxxxxxxxxx>]

** Changed in: nova/train
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1889108

Title:
  failures during driver.pre_live_migration remove source attachments
  during rollback

Status in OpenStack Compute (nova):
  Fix Released
Status in OpenStack Compute (nova) queens series:
  Fix Committed
Status in OpenStack Compute (nova) rocky series:
  Fix Committed
Status in OpenStack Compute (nova) stein series:
  Fix Committed
Status in OpenStack Compute (nova) train series:
  Fix Released
Status in OpenStack Compute (nova) ussuri series:
  Fix Committed

Bug description:
  Description
  ===========

  $subject, the initial rollback and removal of any destination volume
  attachments is then repeated for the source volume attachments,
  leaving the volumes connected on the host but listed as `available` in
  cinder.

  Steps to reproduce
  ==================
  Cause a failure during the call to driver.pre_live_migration with volumes attached.

  Expected result
  ===============
  Any volume attachments for the destination host are deleted during the rollback.

  Actual result
  =============
  Both sets of volumes attachments for the destination *and* the source are removed.

  Environment
  ===========
  1. Exact version of OpenStack you are running. See the following
    list for all releases: http://docs.openstack.org/releases/

     eeeb964a5f65e6ac31dfb34b1256aaf95db5ba3a

  2. Which hypervisor did you use?
     (For example: Libvirt + KVM, Libvirt + XEN, Hyper-V, PowerKVM, ...)
     What's the version of that?

     libvirt + KVM

  2. Which storage type did you use?
     (For example: Ceph, LVM, GPFS, ...)
     What's the version of that?

     N/A

  3. Which networking type did you use?
     (For example: nova-network, Neutron with OpenVSwitch, ...)

     N/A

  Logs & Configs
  ==============

  When live-migration fails with attached volume changed to active and still in nova
  https://bugzilla.redhat.com/show_bug.cgi?id=1860914

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