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Re: [libvirt] [PATCH v1 00/11] Rework storage migration



Il 28/11/2012 11:59, Daniel P. Berrange ha scritto:
> If the user has requested TUNNELLED migration, we need follow up work done.
> We need the NBD server to be able to accept a pre-opened file descriptor
> to rather than listening on a TCP host/port,

This is already supported.  However, the pre-opened fd would be for a
listening socket.

The main problem is that even though a single port is used on the
destination, it is used for multiple connections.  Migration would
require an arbitrary number of streams, and I'm afraid supporting this
would basically entail rewriting all the tunnelling code.

Paolo

> and then for libvirtd to
> tunnel the data stream somehow.  Alternatively just use the old impl in
> the TUNNELLED case.


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