[Gluster-users] unable to change group ownership for some groups
Niels de Vos
ndevos at redhat.com
Thu Jan 14 11:51:14 UTC 2016
On Thu, Jan 14, 2016 at 09:49:11AM +0000, Frank Van Damme wrote:
> Hi group/list,
>
> I am in the process of trying out Glusterfs, and I have come across a
> rather strange permission issue. The problem is this:
> I have one user (my personal account) who is unable to set group
> ownership of a file to certain groups.
>
> frvdamme at rondon /mnt/TEST $ chgrp group1 glfilme /tmp/localfile
> chgrp: changing group of `glfile': Operation not permitted
>
> I am member of the group.
> I own the files.
> Other users, members of that group, CAN chgrp the file.
> I can read files owned by group1, even with permissions g+r,o-rwx, where
> I am not the owner.
> It happens with a number of groups, but not all of them.
> I even tried my luck in the storage backend on the server, where the
> files are saved with verbatim permissions, and I am allowed to chgrp the
> files as a non-root user.
>
> All my users and groups are in LDAP, buth server and client side - in
> fact, I have a replicated brick on two servers, and the machine above is
> one of them. So I am mounting the volume on one of the servers.
> (For the record, I have an NFS server running somewhere else, and LDAP
> groups work just fine client to server).
>
> I checked for duplicate uid's or gid's in the passwd file, but there are
> none.
>
> OS: Debian 7
> GlustgerFS version: 3.6.8, both client and server (since they are the
> same machine in the example).
>
> Clarifications are welcome.
Could you have a look at
https://github.com/gluster/glusterdocs/blob/master/Administrator%20Guide/Handling-of-users-with-many-groups.md
and see if you can get some explanations from it?
HTH,
Niels
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