Bug report here: https://bugs.launchpad.net/nova/+bug/1439012
On Tue, Mar 31, 2015 at 3:56 PM, Michael Still <mi...@stillhq.com> wrote: > 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 >
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