This was implemented recently. https://blueprints.launchpad.net/nova/+spec/nova-image-cache-management
Vish On Feb 28, 2012, at 9:17 AM, Salman A Baset wrote: > Hello folks, > > I was wondering if there is any plan to incorporate cleanup of unused images > that reside on /var/lib/nova/instances/_base directory of a compute node in > Essex release and beyond. > > What are the best practices of sizing storage requirement for > /var/lib/nova/instances/_base . For instance, if a user can create image > snapshots and then boot instances from that images, those snapshots can > quickly fill the disk space. How are folks managing sizing of _base in > practice? > > What about mounting _base directory over say NFS? Mounting _base over NFS can > decrease the provisioning time for a new image since the whole image does not > have to be copied first. This is especially useful for images that are > snapshots. However, it can impact runtime performance. > > I have seen examples such as those in the link below, which use qemu to find > which images are in use. > http://www.stillhq.com/openstack/000001.html > > Thanks. > > Best Regards, > > Salman A. Baset > Research Staff Member, IBM T. J. Watson Research Center > Tel: +1-914-784-6248 > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : openstack@lists.launchpad.net > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp
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