On 03/20/2013 07:55 AM, Akemi Yagi wrote:
On Wed, Mar 20, 2013 at 1:22 AM, Antonietta Donzella
<antonietta.donze...@ing.unibs.it> wrote:
Hi,
I share directories on a Scientific linux cluster by using nfs tool.
SLC6 kernel 2.6.32-279.22.1.el6.x86_64
nfs-utils-1.2.3-26.el6.x86_64
After a server-client shutdown, a disagreeable event occurred.
By making ls list on a nfs client shared directory, duplicated entries for
some files are shown.
Other files and sub-directories are non visible. The problem is not present
on the nfs server.
The directory don't contain an enormous number of files:
On the server:
#ls |wc -l
330
#du -s
8855740
On the client:
#ls |wc -l
ls: reading directory .: Too many levels of symbolic links
120
n.b. there are only two symbolic links and they are not changed after the
shutdown; however, the problem is not cleared if I remove them. #du -s
not responding
#dmesg
some entries:
...
NFS: directory images/dp contains a readdir loop.Please contact your server
vendor. The file: .. has duplicate cookie 683570819
NFS: directory images/dp contains a readdir loop.Please contact your server
vendor. The file: .. has duplicate cookie 683570819
__ratelimit: 2 callbacks suppressed
NFS: directory images/green contains a readdir loop.Please contact your
server vendor. The file: 57.png has duplicate cookie 1694199390
NFS: directory images/green contains a readdir loop.Please contact your
server vendor. The file: 57.png has duplicate cookie 1694199390
...
I've tried to boot the system with the older kernel-2.6.32-279.el6.x86_64,
and with the new kernel 2.6.32-358.2.1.el6.x86_64 but the bug is not
cleared. Any ideas?
Many thanks in advance
Antonietta
Looks like you are affected by a known bug. It is probably the same as this one:
http://bugs.centos.org/view.php?id=6241
If so, there is no fix at the moment unfortunately.
Akemi
I've heard an rumor that disabling dir_index on the 'EXT' family of
filesystems will work around the behavior.
This information is presented without recommendation.
Pat
--
Pat Riehecky
Scientific Linux developer
http://www.scientificlinux.org/
