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. > $ stat /homes/mozes/tmp/sbatten > File: '/homes/mozes/tmp/sbatten' > Size: 138286 Blocks: 0 IO Block: 65536 directory > Device: 0h/0d Inode: 1099523094368 Links: 1 > Access: (0755/drwxr-xr-x) Uid: (163587/ mozes) Gid: (163587/mozes_users) > Access: 2016-01-19 00:12:23.331201000 -0600 > Modify: 2015-10-14 13:38:01.098843320 -0500 > Change: 2015-10-14 13:38:01.098843320 -0500 > Birth: - > $ stat /tmp/sbatten/ > File: '/tmp/sbatten/' > Size: 4096 Blocks: 8 IO Block: 4096 directory > Device: 803h/2051d Inode: 9568257 Links: 2 > Access: (0755/drwxr-xr-x) Uid: (163587/ mozes) Gid: (163587/mozes_users) > Access: 2016-01-19 00:12:23.331201000 -0600 > Modify: 2015-10-14 13:38:01.098843320 -0500 > Change: 2016-01-19 00:17:29.658902081 -0600 > Birth: - > > $ du -s --apparent-size -B1 /homes/mozes/tmp/sbatten > 276572 /homes/mozes/tmp/sbatten > $ du -s -B1 /homes/mozes/tmp/sbatten > 147456 /homes/mozes/tmp/sbatten > > $ du -s -B1 /tmp/sbatten > 225280 /tmp/sbatten > $ du -s --apparent-size -B1 /tmp/sbatten > 142382 /tmp/sbatten > > Notice how the apparent-size version is *exactly* the Size from the > stat + the size from the "proper" du? Err... exactly? Are you sure? 138286 + 147456 = 285742 which is != 276572, no? Anyway thx for your help Adam. -- François Lafont _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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