long running sessions, restarts, etc.

[Bill Nottingham]

Colin Walters (walters at verbum.org) said: 
> For system-level services, we have the idea of try-restart on upgrades; if
> > the service is running, we automatically restart it on upgrade.
> 
> 
> How does that work?  Obviously you can't restart packagekitd while it's in
> the middle of upgrading.  Another one you obviously can't just kill and
> restart is libvirtd.

Actually, libvirtd does restart on upgrade. It's implemented in the
init scripts.

> The live replace files on disk part of upgrade is also problematic, and is
> actually the most broken thing relating to updates we have right now.  For
> this reason among others I think we should move to installing updates
> immediately before logout/reboot.

Really? I think we're moving more towards a model on mobile devices where
there *is* no logout/reboot except by accident in a large number of cases.

Bill