Re: Gluster 3.10.5: used disk size reported by quota and du mismatch

Mauro Tridici <mauro.tridici@xxxxxxx> · Mon, 9 Jul 2018 17:31:20 +0200

Hi Sanoj,

could you provide me the command that I need in order to backup all quota limits?
If there is no solution for this kind of problem, I would like to try to follow your “backup” suggestion.

Do you think that I should contact gluster developers too?

Thank you very much.
Regards,
Mauro

Il giorno 05 lug 2018, alle ore 09:56, Mauro Tridici <mauro.tridici@xxxxxxx> ha scritto:

Hi Sanoj,

unfortunately the output of the command execution was not helpful.

[root@s01 ~]# find /tier2/CSP/ans004  | xargs getfattr -d -m. -e hex
[root@s01 ~]# 

Do you have some other idea in order to detect the cause of the issue?

Thank you again,
Mauro

Il giorno 05 lug 2018, alle ore 09:08, Sanoj Unnikrishnan <sunnikri@xxxxxxxxxx> ha scritto:

Hi Mauro,

A script issue did not capture all necessary xattr. 
Could you provide the xattrs with.. 
find /tier2/CSP/ans004  | xargs getfattr -d -m. -e hex

Meanwhile, If you are being impacted, you could do the following
back up quota limits 
disable quota
enable quota
freshly set the limits.

Please capture the xattr values first, so that we can get to know what went wrong.
Regards,
Sanoj

On Tue, Jul 3, 2018 at 4:09 PM, Mauro Tridici <mauro.tridici@xxxxxxx> wrote:
Dear Sanoj,
thank you very much for your support.
I just downloaded and executed the script you suggested.

This is the full command I executed:

./quota_fsck_new.py --full-logs --sub-dir /tier2/CSP/ans004/ /gluster

In attachment, you can find the logs generated by the script.
What can I do now?

Thank you very much for your patience.
Mauro

Il giorno 03 lug 2018, alle ore 11:34, Sanoj Unnikrishnan <sunnikri@xxxxxxxxxx> ha scritto:

Hi Mauro, 

This may be an issue with update of backend xattrs. 
To RCA further and provide resolution could you provide me with the logs by running the following fsck script.
https://review.gluster.org/#/c/19179/6/extras/quota/quota_fsck.py

Try running the script and revert with the logs generated.

Thanks,
Sanoj

On Mon, Jul 2, 2018 at 2:21 PM, Mauro Tridici <mauro.tridici@xxxxxxx> wrote:
Dear Users,

I just noticed that, after some data deletions executed inside "/tier2/CSP/ans004” folder, the amount of used disk reported by quota command doesn’t reflect the value indicated by du command.
Surfing on the web, it seems that it is a bug of previous versions of Gluster FS and it was already fixed.
In my case, the problem seems unfortunately still here.

How can I solve this issue? Is it possible to do it without starting a downtime period?

Thank you very much in advance,
Mauro

[root@s01 ~]# glusterfs -V
glusterfs 3.10.5
Repository revision: git://git.gluster.org/glusterfs.git
Copyright (c) 2006-2016 Red Hat, Inc. <https://www.gluster.org/>
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.

[root@s01 ~]# gluster volume quota tier2 list /CSP/ans004
                  Path                   Hard-limit  Soft-limit      Used  Available  Soft-limit exceeded? Hard-limit exceeded?
-------------------------------------------------------------------------------------------------------------------------------
/CSP/ans004                                1.0TB     99%(1013.8GB)    3.9TB  0Bytes             Yes                  Yes

[root@s01 ~]# du -hs /tier2/CSP/ans004/
295G	/tier2/CSP/ans004/

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