yahoo-eng-team team mailing list archive

[Lee Yarwood <lyarwood@xxxxxxxxxx>]

Public bug reported:

Description
===========
At present any exceptions encountered during post_live_migration on the source after an instance has successfully migrated result in the overall failure of the migration and the instance being listed as running on the source while actually being on the destination.

Any such errors should be logged but otherwise ignored allowing the
migration to complete and for the instance to continue to be tracked
correctly.


Steps to reproduce
==================
- Live migrate an instance from host A to host B, ensuring post_live_migration fails.

Expected result
===============
Any failures on the source encountered by post_live_migration are logged but the overall migration still completes successfully.

Actual result
=============
The instance and overall migration are left in error states. Additionally the instance is reported as residing on the source host while actually running on the destination.

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

   ba3147420c0a6f8b17a46b1a493b89bcd67af6f1

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

** Affects: nova
     Importance: Undecided
         Status: New


** Tags: libvirt live-migration volumes

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https://bugs.launchpad.net/bugs/1843639

Title:
  libvirt: post_live_migration failures to disconnect volumes result in
  the rollback of live migrations

Status in OpenStack Compute (nova):
  New

Bug description:
  Description
  ===========
  At present any exceptions encountered during post_live_migration on the source after an instance has successfully migrated result in the overall failure of the migration and the instance being listed as running on the source while actually being on the destination.

  Any such errors should be logged but otherwise ignored allowing the
  migration to complete and for the instance to continue to be tracked
  correctly.

  
  Steps to reproduce
  ==================
  - Live migrate an instance from host A to host B, ensuring post_live_migration fails.

  Expected result
  ===============
  Any failures on the source encountered by post_live_migration are logged but the overall migration still completes successfully.

  Actual result
  =============
  The instance and overall migration are left in error states. Additionally the instance is reported as residing on the source host while actually running on the destination.

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

     ba3147420c0a6f8b17a46b1a493b89bcd67af6f1

  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

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