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[Xen-devel] status of non-live migration of HVM with libvirt


  • To: xen-devel@xxxxxxxxxxxxxxxxxxxx
  • From: Olaf Hering <olaf@xxxxxxxxx>
  • Date: Fri, 4 Jan 2019 16:57:55 +0100
  • Delivery-date: Fri, 04 Jan 2019 15:58:09 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

With 'xl migrate' the migration is always live, while 'virsh migrate' will do 
an offline migration unless '--live' is used. Such non-live migration will 
break with HVM because the sending side does not seem to unlock the qcow2 image.

I wonder if its worth keeping (and fixing) the concept of an "offline 
migration", or if libvirt should be changed to either require '--live' or 
silently always do live migrations.

Olaf

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