[libvirt] [PATCH] qemu: Add ability to disable autostarting of guests on daemon start

Jiri Denemark jdenemar at redhat.com
Tue Nov 6 18:05:44 UTC 2012

On Tue, Nov 06, 2012 at 14:57:30 +0100, Daniel P. Berrange wrote:
> On Mon, Nov 05, 2012 at 04:02:28PM +0100, Peter Krempa wrote:
> > When the daemon is starting it autostarts all guests marked as
> > autostartable. This is not an ideal solution for autostarting if there's
> > a lot of domains configured so. After autostarting all right away the
> > guests start competing for disk I/O and the boot is prolonged
> > unnecessarily.
> > 
> > This patch adds a config option to disable autostarting to leave it on
> > user scripts that may use mechanisms to reduce load of the host by
> > limiting the number of guests started in parallel.
> I sort wonder whether it is better to expose this as a command line
> argument rather than a config option. It would make life much easier
> for people who want to have autostart running most of the time, but
> occassionally want to start libvirtd without it.

I also think command line argument is better than a config option. And if
someone wants to permanently disable autostarting, we have service
configuration files for this (such as /etc/sysconfig/libvirtd,
/etc/conf.d/libvirtd, ...).


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