[libvirt] Question about parallel migration connections

Fri Jan 10 07:16:46 UTC 2020

On Thu, Jan 09, 2020 at 23:04:19 +0000, Jim Fehlig wrote:
> Are they supported with tunneled migration? The feature seems limited to native 
> migration, in which case I can send a patch prohibiting parallel migration 
> connections with the tunnel.

That is true. Libvirt's stream which is used for tunelling the
connection can carry only one connection and the APIs driving tunelled
migration allow only one stream in arguments.

It's the same reason why tunelled migration doesn't support migration of
non-shared storage using NBD.