-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Jeffrey J. Kosowsky wrote: > Holger Parplies wrote at about 11:29:49 +0100 on Thursday, October 30, 2008: > > Hi, > > > > Jeffrey J. Kosowsky wrote on 2008-10-30 03:55:16 -0400 [[BackupPC-users] > Duplicate files in pool with same CHECKSUM and same CONTENTS]: > > > I have found a number of files in my pool that have the same checksum > > > (other than a trailing _0 or _1) and also the SAME CONTENT. Each copy > > > has a few links to it by the way. > > > > > > Why is this happening? > > > > presumably creating a link sometimes fails, so BackupPC copies the file, > > assuming the hard link limit has been reached. I suspect problems with your > > NFS server, though not a "stale NFS file handle" in this case, since > copying > > the file succeeds. Strange. > > Yes - I am beginning to think that may be true. However as I mentioned > in the other thread, the syslog on the nfs server is clean and the one > on the client shows only about a dozen or so nfs timeouts over the > past 12 hours which is the time period I am looking at now. Otherwise, > I don't see any nfs errors. > So if it is a nfs problem, something seems to be happening somewhat > randomly and invisibly to the filesystem.
See this URL which assisted me in improving the performance, and reducing NFS errors in my environment. http://billharlan.com/pub/papers/NFS_for_clusters.html It was written a long time ago, but most of it is stall very relevant (I guess NFS has not changed much). In my case, the actual problem was faulty memory in a new server plus some sort of strange network card driver problem corrupting the NFS packets.... It truly surprised me just how many errors I was getting even from my existing load which I had never noticed..... Regards, Adam -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFJCc6IGyoxogrTyiURAoVnAJ9iKX9Sj8H7mDgmyrC182Uz+rIvgwCePvy5 J8OaYBtJuOvYC9a4JSNGEKI= =gip1 -----END PGP SIGNATURE----- ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/