On Sun, Oct 05, 2008 at 02:16:54PM +0200, Guido G?nther wrote: > On Fri, Sep 26, 2008 at 04:47:05PM +0100, Daniel P. Berrange wrote: > > We've got this problem sorted in the 'lxc' driver and need to apply > > the same approach to the QEMU driver. The problem was always finding > > the Pseduo-TTY/PID for the monitor after restart, and associating the > > live config with it. We've "solved" that in LXC driver by savingt the > > live XML & PID to /var/run/libvirt/lxc/. It basically needs the same > > approach to be applied to the QEMU daemons. In addition the DNSmasq > > deamon needs adapting for simiarl reasons. > This would solve the problem of restarting libvirtd. How are we going to > distinguish this from daemon shutdown on e.g. system reboot? Is the > distros init script supposed to handle shutting down/suspending active > domains on /etc/init.d/libvirtd stop? Yep, we need to have some explicit support for shuttting down / saving active VMs on system shutdown, independant of whether the daemon restart preserves them. We can probably distinguish by picking a specific signal for orderly shutdown of the daemon + vms, vs a simple restart. I'd like all signals to preserve running VMs by default - attempting todo orderly shutdown of VMs on reciept of signal is not great because there's no way to get info on progress of shutdown, or detect/report shutdown errors. I'd also like to avoid putting any complex application logic into initscripts though. Perhaps we should have an explicit API, or a convenient virsh command to shutdown all VMs in one go. Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :| _______________________________________________ et-mgmt-tools mailing list et-mgmt-tools@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/et-mgmt-tools
