On 02/05/2015 07:44 AM, Udo Lembke wrote:
Hi all, is there any command to flush the rbd cache like the "echo 3 > /proc/sys/vm/drop_caches" for the os cache?
librbd exposes it as rbd_invalidate_cache(), and qemu uses it internally, but I don't think you can trigger that via any user-facing qemu commands. Exposing it through the admin socket would be pretty simple though: http://tracker.ceph.com/issues/2468 You can also just detach and reattach the device to flush the rbd cache. Josh _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
