On 03/11/2011 12:04 PM, Laine Stump wrote: > By default, all dnsmasq processes share the same leases file. libvirt > also uses the --dhcp-lease-max option to control the maximum number of > leases allowed. The problem is that libvirt puts in a number equal to > the number of addresses in the range for the one network handled by a > single instance of dnsmasq, but dnsmasq checks the total number of > leases in the file (which could potentially contain many more). > > The solution is to tell each instance of dnsmasq to create and use its > own leases file. (/var/lib/libvirt/network/<net-name>.leases). > > This file is created by dnsmasq when it starts, but not deleted when > it exists. This is fine when the network is just being stopped, but if > the leases file was left around when a network was undefined, we could > end up with an ever-increasing number of dead files - instead, we > explicitly unlink the leases file when a network is undefined. > > Note that Ubuntu carries a patch against an older version of libvirt for this: > > hhttps://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/713071 > ttp://bazaar.launchpad.net/~serge-hallyn/ubuntu/maverick/libvirt/bugall/revision/109 > > I was certain I'd also seen discussion of this on libvir-list or > libvirt-users, but couldn't find it.
Be that as it may, it's a real fix worth applying. ACK. -- Eric Blake ebl...@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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