On Sep 16, 2009 11:56 +0200, Isaac Hailperin wrote: > I'd like to implement sliding window and hight water mark deletion on a > lustre filesystem. For that I need information from all files. A first > idea was to recursivly traverse the file tree and to a `stat filename` > for every file to collect the meta data. > > Now since in lustre the meta data is stored on the mds, I though that > maybe there is a more efficient way of collecting the information. > > So the question is: is there a way that I could query the mds for the > information that stat would give me(I need access, modify, creation time > plus the file size). And if so, can someone guess the performance > increase of quering the mds directly over using `stat` ?
This is what e2scan is for, in the Lustre e2fsprogs. Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc. _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
