On Fri, Sep 12, 2014 at 9:26 AM, brandon li <brandon.li....@gmail.com> wrote: > Hi, > > I am new to ceph file system, and have got a newbie question: > > For a sparse file, how could ceph file system know the hole in the file was > never created or some stripe was just simply lost?
CephFS does not keep any metadata to try and track that; it assumes that non-existent objects are supposed to be holes. It relies on RADOS not losing data. -Greg Software Engineer #42 @ http://inktank.com | http://ceph.com _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com