[et-mgmt-tools] [RFC]Re: [libvirt] [RFC][PATCH] virt-manager calls migration API

[Daniel P. Berrange]

On Fri, Sep 19, 2008 at 06:43:37PM +0900, S.Sakamoto wrote:
> > 
> > > You probably want to send this to et-mgmt-list, which is where virt-manager
> > > development happens,
> > 
> > OK. For this, I tried to hear in et-mgmt-list.
> > 
> 
> I'm sorry to be pressing, but would you give me a comment on this patch for
> going on the next step to migrate from virt-manager ? 
> I attached screenshots this patch shows.

I think rather than having it popup a new window with a list of hosts to
migrate to, you could just have a sub-menu where you choose the destination
host directly.

eg,

    right-click
      |
      +-  Run
          Pause
          Shutdown
          --------
          Migrate ----> host1.example.com
                        host2.example.com
                        host3.example.com
                        ...etc...

When the user selects one of these hosts, it'd popup a confirmation
window, and do the neccessary migration checks, and then allow the
admin to confirm to start the migration.

> > > I sent an e-mail last month with proposals for doing this within libvirt.  I put
> > > up all of the information I have in the libvirt wiki here:
> > > 
> > > http://wiki.libvirt.org/page/TodoPreMigrationChecks
> > 
> > Thank you for your information. I see above libvirt wiki and I have a few 
> > idea adding checks within libvirt. These point of view are Guest and Host sanity
> > in BASIC CHECKS. How about this points ?
> > 
> >  1)Guest sanity is checking whether already existing or not on the destination.
> >    Otherwise the uniqueness of the domain(UUID, name) are lost.
> >    * I think that it is right to check this in libvirt. How do you think this ?

Yes, checking for name/uuid uniqueness has to be done inside libvirt by
each hypervisor driver according to their own rules.

> >  2)Host sanity is checking whether a migration flag is ON at each virtualization.

virt-manager will need to check the kind of things on the TodoPreMigrationChecks
wiki page.


Daniel
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