[libvirt-users] DHCP logging settings
Daniel P. Berrange
berrange at redhat.com
Wed Sep 13 17:35:50 UTC 2017
On Wed, Sep 13, 2017 at 12:59:57PM -0400, Laine Stump wrote:
> On 09/04/2017 09:17 PM, Shannon wrote:
> > I find that libvirt clogs up syslog with trivial DHCP notifications. I
> > know how to configure alternate logging with dnsmasq directly via
> > 'log-facility' and/or 'quiet-dhcp' options
>
> (Unfortunately there isn't currently any knob you can easily turn to
> reduce dnsmasq's logs)
>
> Interesting. A long time ago I was annoyed by all the logging produced
> by dnsmasq and searched the standard/sample dnsmasq.conf for an option
> to reduce the logging, but all I saw were options to *increase* it! I
> guess I didn't look far enough.
>
> It would be nice for libvirt to take advantage of this, but since the
> logging levels of other parts of libvirt are handled in libvirtd.conf
> and qemu.conf, maybe it would be better to add the option there rather
> than making it a part of the config for each network. (on the other
> hand, it might be nice to be able to have more verbose logs for some
> networks than for others).
>
> Does anyone have an opinion about this? Maybe we could have a
> "dhcp_quiet" option in libvirtd.conf? (alternately I guess we could a
> <log> element to networks, but that would require something sufficiently
> generic that it would also be useful if someone decided to, e.g., write
> a network driver that used the ISC dhcpd instead of dnsmasq).
NB it would want to be in /etc/libvirt/network.conf, since this would
be specific to the network driver. It seems reasonable to add such
a thing.
Regards,
Daniel
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