Ok, so that sounds like a totally reasonable feature request to me. Can you please file a bug so its tracked and let me know the bug number?
Thanks, Michael On Wed, Apr 1, 2015 at 1:27 AM, Chris Buccella <chris.bucce...@verilume.com> wrote: > The instance disk images are stored in ceph. > > This isn't a situation we hit often. But when several users are booting > large, short-lifecyle instances (say, Windows, or Hadoop images to use with > Sahara), they get the "no valid host" error. The only recourse then is for > an admin to manually clean up the cache, or wait for the periodic cache > cleanup. > > > -Chris > > On Tue, Mar 31, 2015 at 1:01 AM, Michael Still <mi...@stillhq.com> wrote: >> >> Your request is reasonable, but not currently handled by the code. Its >> a bit concerning that your cache is so disk constrained -- is it a >> separate filesystem from the instance disk images? >> >> Michael >> >> On Tue, Mar 31, 2015 at 3:26 PM, Chris Buccella >> <chris.bucce...@verilume.com> wrote: >> > I'm running Juno. Here's my situation: >> > >> > 1) There are a bunch of cached images on the compute nodes >> > (/var/lib/nova/instances/_base/) >> > 2) I want to keep the images in the cache as long as possible (for >> > performance reasons) >> > 3) I want to be able to spawn instances with an uncached image >> > >> > What I've observed is that if the cache is full, it won't automatically >> > be >> > cleaned up when a new image tries to be cached. Instead, I get a "no >> > valid >> > host" error when trying to boot a new instance. I've found the following >> > relevant config parameters: >> > >> > image_cache_manager_interval >> > remove_unused_base_images >> > remove_unused_original_minimum_age_seconds >> > >> > These work, but don't really help me. I don't want time-based cache >> > management, but on-demand cache management. Basically, if >> > removed_unused_base_images is true, the oldest image should be removed >> > from >> > the cache to make room for the new one. >> > >> > Has anyone else encountered this situation? Maybe there's something I'm >> > missing? >> > >> > Thanks, >> > >> > >> > -Chris >> > >> > _______________________________________________ >> > Mailing list: >> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> > Post to : openstack@lists.openstack.org >> > Unsubscribe : >> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> > >> >> >> >> -- >> Rackspace Australia > > -- Rackspace Australia _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : openstack@lists.openstack.org Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
