[Gluster-users] Cannot rename files with root squashing and r-x folder group permissions

Raghavendra Bhat rabhat at redhat.com
Wed Jul 16 04:47:08 UTC 2014


On Tuesday 15 July 2014 01:57 PM, David Raffelt wrote:
> Hi Raghavendra,
> Thanks for looking into this. Attached are the log files from the 3 
> peers. The glusterfs server is running on "Beauty".  All 3 peers mount 
> the native gluster client on /home. Each peer has a direct connection 
> to each other, addressable via the /etc/hosts file.
>
> Note that I do not see any new output in the log when this error 
> occurs.  Also note that I tried to replicate this issue on Ubuntu 
> 14.04 with a single brick and could not replicate it.
>
> Below is some more output that might help.
> Thanks!
> Dave
>
>
>
> *dave at beauty:~$ glusterfs --version*
> glusterfs 3.5git built on Jun 30 2014 15:58:19
> Repository revision: git://git.gluster.com/glusterfs.git 
> <http://git.gluster.com/glusterfs.git>
> Copyright (c) 2006-2013 Red Hat, Inc. <http://www.redhat.com/>
> GlusterFS comes with ABSOLUTELY NO WARRANTY.
> It is licensed to you under your choice of the GNU Lesser
> General Public License, version 3 or any later version (LGPLv3
> or later), or the GNU General Public License, version 2 (GPLv2),
> in all cases as published by the Free Software Foundation.
>
>
> *dave at beauty:~$ uname -r*
> 3.15.4-1-ARCH
>
>
> *dave at beauty:~$ sudo gluster volume info *
> Volume Name: data
> Type: Distribute
> Volume ID: 1d5948c7-9b7a-40ca-8aa7-85c74bcef3bc
> Status: Started
> Number of Bricks: 3
> Transport-type: tcp
> Bricks:
> Brick1: beauty:/export/beauty
> Brick2: beast:/export/beast
> Brick3: benji:/export/benji
> Options Reconfigured:
> performance.cache-size: 32MB
> performance.write-behind-window-size: 1MB
> auth.allow: 
> 172.30.25.173,172.30.25.158,172.30.25.234,172.30.26.76,172.30.26.77,192.168.0.1,192.168.1.1,192.168.1.2,192.168.2.2,192.168.3.2,192.168.4.1,192.168.4.2,192.168.5.1,192.168.5.2
> nfs.disable: off
> diagnostics.brick-log-level: ERROR
> diagnostics.client-log-level: ERROR
> server.root-squash: enable
>
>
>

Hi Dave,

Was rebalance running when you did above operations?


Regards,
Raghavendra Bhat

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> On 15 July 2014 15:29, Raghavendra Bhat <rabhat at redhat.com 
> <mailto:rabhat at redhat.com>> wrote:
>
>     On Monday 14 July 2014 09:10 PM, Pranith Kumar Karampuri wrote:
>>     CCed Raghavendra Bhat who may know about the issue
>>
>>     Pranith
>>     On 07/14/2014 08:01 PM, Joe Julian wrote:
>>>     https://bugzilla.redhat.com/enter_bug.cgi?product=GlusterFS
>>>
>>>     Please file a bug report.
>>>
>>>     On July 14, 2014 12:38:11 AM PDT, David Raffelt
>>>     <d.raffelt at brain.org.au> <mailto:d.raffelt at brain.org.au> wrote:
>>>
>>>         Hi All,
>>>         After a recent update to gluster 3.5 we are having some
>>>         issues renaming files when root squashing is enabled and the
>>>         folder group permissions are not set to write.
>>>
>>>         For example if I create a folder with the following permissions
>>>         $ mkdir test
>>>         $ chmod g-w test
>>>         $ ls -l
>>>         drwxr-xr-x  2 dave dave  22 Jul 14 17:16 test
>>>
>>>         When I create a file /within/ this folder, and try to rename
>>>         it I get a file permissions error.
>>>
>>>         $ cd test
>>>         $ touch asdf
>>>         $ mv asdf asdf2
>>>         mv: cannot move ‘asdf’ to ‘asdf2’: Permission denied
>>>
>>>         A strace on the mv command reveals the rename system call
>>>         fails with:
>>>         rename("asdf", "asdf2") = -1 EACCES (Permission denied)
>>>
>>>         However I can copy the file and delete the old one fine.
>>>
>>>         If I either disable gluster root squashing, or change the
>>>         test_dir folder group permission to write then I can rename
>>>         the file without any problems.
>>>
>>>         System details are:
>>>         Arch linux
>>>         System umask is set to 002
>>>         Distributed volume, 3 peers, 1 brick per peer.
>>>
>>>         Any help is much appreciated!
>>>         Dave
>>>
>>>
>
>     Hi Dave,
>
>     Can you please provide the brick and client log files? Which
>     client you were using? fuse or nfs?
>
>     Regards,
>     Raghavendra Bhat
>
>
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>>>
>>>     -- 
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>>>
>>>
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>>
>>
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>
> -- 
> *David Raffelt (PhD)*
> Postdoctoral Fellow
>
> The Florey Institute of Neuroscience and Mental Health
> Melbourne Brain Centre - Austin Campus
> 245 Burgundy Street
> Heidelberg Vic 3084
> Ph: +61 3 9035 7024
> www.florey.edu.au

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