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[Alan Pevec <1335999@xxxxxxxxxxxxxxxxxx>]

** Also affects: horizon/icehouse
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1335999

Title:
  live migration choosing wrong host names

Status in OpenStack Dashboard (Horizon):
  Fix Released
Status in OpenStack Dashboard (Horizon) icehouse series:
  Fix Committed

Bug description:
  Horizon's admin interface recently gained a feature to trigger a live
  migration from the UI. It requires a destination host to be specified
  (which is wrong, as the destination host is optional in the API), and
  it allows to preselect from a list of given names.

  However, the list that is chosen is coming from os-hypervisor-list.
  These host names might not match os-hosts, which is the one that the
  nova scheduler expects.

  Consequently if hypervisor names do not match the host names, the live
  migration from the UI fails.

  nova host-list is in my case:

  +--------------------+-------------+----------+
  | host_name          | service     | zone     |
  +--------------------+-------------+----------+
  | d52-54-01-77-77-01 | scheduler   | internal |
  | d52-54-01-77-77-01 | consoleauth | internal |
  | d52-54-02-77-77-02 | compute     | nova     |
  | d52-54-01-77-77-01 | conductor   | internal |
  | d52-54-01-77-77-01 | cert        | internal |
  +--------------------+-------------+----------+

  nova hypervisor-list is

  nova hypervisor-list
  +----+-------------------------------------+
  | ID | Hypervisor hostname                 |
  +----+-------------------------------------+
  | 1  | d52-54-02-77-77-02.c6.cloud.suse.de |
  +----+-------------------------------------+

  
  calling a live-migration against the fqdn (like hypervisor-list returns) fails.

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