Gregory Farnum – Thu., 21. January 2016 4:02
On Wed, Jan 20, 2016 at 6:40 PM, Francois Lafont <flafdivers@xxxxxxx> wrote: > Hi, > > On 19/01/2016 07:24, Adam Tygart wrote: >> It appears that with --apparent-size, du adds the "size" of the >> directories to the total as well. On most filesystems this is the >> block size, or the amount of metadata space the directory is using. On >> CephFS, this size is fabricated to be the size sum of all sub-files. >> i.e. a cheap/free 'du -sh $folder' > > Ah ok, interesting. I have tested and I have noticed however that size > of a directory is not updated immediately. For instance, if I change > the size of the regular file in a directory (of cephfs) the size of the > size doesn't change immediately after. It's updated lazily so it's not instantaneous, but it should be pretty fast. Probably within 30 seconds, and usually a lot less. -Greg
I recently reported on this list an issue with tar reporting a file as changed[1], is this the same phenomenon?
Thomas HAMEL 1: http://article.gmane.org/gmane.comp.file-systems.ceph.user/26594 _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
