yahoo-eng-team team mailing list archive

[Paul Murray <pmurray@xxxxxxx>]

Public bug reported:

Post copy live migration causes loss of networking for the duration of
the post copy phase.

Post copy live migration is implemented for the libvirt virt driver with
qemu. It works by switching the active VM to the destination early
(before the copy is complete) and then completes the copy using the post
copy algorithm.

Port rebind is done in post_live_migration_at_destination() which is
called after the migration has completed. So the destination VM has no
networking for the duration of the post copy phase.

The network ports should be rebound to the destination immediately after
the switch so the destination VM has access to its networking.

** Affects: nova
     Importance: Undecided
         Status: New


** Tags: live-migration

-- 
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1605016

Title:
  Post copy live migration interrupts network connectivity

Status in OpenStack Compute (nova):
  New

Bug description:
  Post copy live migration causes loss of networking for the duration of
  the post copy phase.

  Post copy live migration is implemented for the libvirt virt driver
  with qemu. It works by switching the active VM to the destination
  early (before the copy is complete) and then completes the copy using
  the post copy algorithm.

  Port rebind is done in post_live_migration_at_destination() which is
  called after the migration has completed. So the destination VM has no
  networking for the duration of the post copy phase.

  The network ports should be rebound to the destination immediately
  after the switch so the destination VM has access to its networking.

To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1605016/+subscriptions