[Gluster-users] Gluster 3.10.5: used disk size reported by quota and du mismatch

[Hari Gowtham]

Hi,

There is no explicit command to backup all the quota limits as per my
understanding. need to look further about this.
But you can do the following to backup and set it.
Gluster volume quota volname list which will print all the quota
limits on that particular volume.
You will have to make a note of the directories with their respective limit set.
Once noted down, you can disable quota on the volume and then enable it.
Once enabled, you will have to set each limit explicitly on the volume.

Before doing this we suggest you can to try running the script
mentioned above with the backend brick path instead of the mount path.
you need to run this on the machines where the backend bricks are
located and not on the mount.
On Mon, Jul 9, 2018 at 9:01 PM Mauro Tridici <mauro.tridici at cmcc.it> wrote:
>
> 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 at cmcc.it> ha scritto:
>
> Hi Sanoj,
>
> unfortunately the output of the command execution was not helpful.
>
> [root at s01 ~]# find /tier2/CSP/ans004  | xargs getfattr -d -m. -e hex
> [root at 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 at redhat.com> 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 at cmcc.it> 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 at redhat.com> 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 at cmcc.it> 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 at 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 at 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 at s01 ~]# du -hs /tier2/CSP/ans004/
>>> 295G /tier2/CSP/ans004/
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Gluster-users mailing list
>>> Gluster-users at gluster.org
>>> http://lists.gluster.org/mailman/listinfo/gluster-users
>>
>>
>>
>
>
>
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-- 
Regards,
Hari Gowtham.