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[OpenStack Infra <1844993@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.opendev.org/683948
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=4a10f8eaa7685e3ce03d728a4a1669946492097d
Submitter: Zuul
Branch:    master

commit 4a10f8eaa7685e3ce03d728a4a1669946492097d
Author: Balazs Gibizer <balazs.gibizer@xxxxxxxx>
Date:   Mon Sep 23 12:48:20 2019 +0200

    Reject migration with QoS port from conductor if RPC pinned
    
    The MigrationTask in the conductor already checks the service version as
    old computes cannot support migration with QoS port. However it is still
    possible that every compute is new but the compute RPC API is pinned to
    < 5.2. In this case the migration still cannot be supported.
    
    This patch adds an extra RPC version check to the conductor.
    
    Change-Id: Ib4e0b9ab050a59ab5a290e6eecea01b87c3bd4c6
    Closes-Bug: #1844993


** Changed in: nova
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1844993

Title:
  migrate a server with qos port with compute RPC pinned to 5.1 fails
  and leaves the qos port in an inconsistent state

Status in OpenStack Compute (nova):
  Fix Released

Bug description:
  Steps to reproduce
  ==================

  1) Set the [upgrade_levels]/compute config parameter to '5.1'
  2) Boot an instance with a neutron port having resource request (e.g. QoS min bandwidth policy)
  4) Do the migration

  Expected result
  ===============

  Migration is rejected as qos port handing in migration needs at least
  RPC 5.2. Instance remains on the source host.

  Actual result
  =============

  Migration fails at finish_resize step. Server goes to ERROR state on
  the destination host. The allocation key in the qos port binding
  profile still points to the source host.

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