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[Bug 1785031] [NEW] live migration to non-existing host gets instance stuck in "migrating" status

 

Public bug reported:

Description
===========
When doing live-migration, if a host that does not exist or cannot be found is specified as destination, live-migration will fail and instance will get stuck in status "migrating".

Steps to reproduce
==================
nova live-migration vm non_existing_host

Expected result
===============
live-migration fails and instance rolls back to initial state

Actual result
=============
live-migration fails but instance's status remains "migrating"

Environment
===========
nova --version
10.1.0 (queens release)

Logs & Configs
==============
not related

** Affects: nova
     Importance: Undecided
     Assignee: Chen (chenn2)
         Status: New

** Changed in: nova
     Assignee: (unassigned) => Chen (chenn2)

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https://bugs.launchpad.net/bugs/1785031

Title:
  live migration to non-existing host gets instance stuck in "migrating"
  status

Status in OpenStack Compute (nova):
  New

Bug description:
  Description
  ===========
  When doing live-migration, if a host that does not exist or cannot be found is specified as destination, live-migration will fail and instance will get stuck in status "migrating".

  Steps to reproduce
  ==================
  nova live-migration vm non_existing_host

  Expected result
  ===============
  live-migration fails and instance rolls back to initial state

  Actual result
  =============
  live-migration fails but instance's status remains "migrating"

  Environment
  ===========
  nova --version
  10.1.0 (queens release)

  Logs & Configs
  ==============
  not related

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