Brent, True, it is a nice idea as size of the directory inode is not used anywhere (is it used?) We will keep this in mind. Krishna On Fri, Mar 20, 2009 at 7:31 AM, Brent A Nelson <brent@xxxxxxxxxxxx> wrote: > Sage Weil with the Ceph filesystem came up with a clever idea, and it might > be a tempting optional feature on GlusterFS. He calls it rbytes accounting, > if I recall correctly. > > Basically, the idea is to just keep a running tally of how much data is > stored in each directory. I believe he did this originally for quota > support, but the neat part is that he decided to make the collected > statistics available simply through ls. If you do an ls -l, the size > associated with any directory listed is the current estimated amount of data > contained in that directory (and any subdirectories within), rather than the > size of the directory inode itself (and who really cares about the size of > the directory inode?). Neat! > > In filesystems where du can take a very long time to run, this would be > rather convenient. It's possible that it might break some applications, so > it certainly should be optional, but such applications are likely quite > rare. > > Perhaps this would fit in nicely with a per-directory quota translator, as > such a translator might store usage data by directory in an extended > attribute, anyway? > > Thanks, > > Brent > > > _______________________________________________ > Gluster-devel mailing list > Gluster-devel@xxxxxxxxxx > http://lists.nongnu.org/mailman/listinfo/gluster-devel >
