On 11/10/2014 05:24 PM, Joschi Brauchle wrote:
Hello all,

I am experiencing strange behaviour of some of my NFS clients running
SSSD-AD 1.12.1. Some machines seem to be losing the 'group name <-> GID'
mapping on files on an NFS share, see this example:
---------------
$ l -d SOMEFOLDER
drwxrwxr-x 17 root 4294967294 4096 Nov  6 15:31 SOMEFOLDER/
$ stat SOMEFOLDER
   File: ‘SOMEFOLDER’
   Size: 4096            Blocks: 8          IO Block: 65536  directory
Device: 26h/38d Inode: 27258       Links: 17
Access: (0775/drwxrwxr-x)  Uid: (    0/    root)   Gid: (4294967294/
UNKNOWN)
...
---------------
Also all files SOMEFOLDER/* are affected.

I know the group the folder is supposed to have is set correctly and
other clients show its name. Also, users who are in the missing group
show the groupname and GID just fine when doing an 'id USERNAME'.

Restarting SSSD resolves the issue for some time.

Correction: This is not true! Restarting SSSD or clearing user and group cache does not help.

So looks like NFS problem!

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