Manikandan Selvaganesh
2016-Jan-25 20:01 UTC
[Gluster-users] Quota list not reflecting disk usage
Hi Steve,
Could you send us the glusterfs logs, it could help us debug the issue!!
--
Thanks & Regards,
Manikandan Selvaganesh.
----- Original Message -----
From: "Steve Dainard" <sdainard at spd1.com>
To: "Manikandan Selvaganesh" <mselvaga at redhat.com>
Cc: "gluster-users at gluster.org List" <gluster-users at
gluster.org>
Sent: Tuesday, January 26, 2016 12:56:22 AM
Subject: Re: [Gluster-users] Quota list not reflecting disk usage
Something is seriously wrong with the quota output:
# gluster volume quota storage list
Path Hard-limit Soft-limit Used
Available Soft-limit exceeded? Hard-limit exceeded?
---------------------------------------------------------------------------------------------------------------------------
/projects-CanSISE 10.0TB 80% 27.8TB
0Bytes Yes Yes
/data4/climate 105.0TB 80% 307.1TB
0Bytes Yes Yes
/data4/forestry 50.0GB 80% 61.9GB
0Bytes Yes Yes
/data4/projects 800.0GB 80% 2.0TB
0Bytes Yes Yes
/data4/strays 85.0GB 80% 230.5GB
0Bytes Yes Yes
/data4/gis 2.2TB 80% 6.3TB
0Bytes Yes Yes
/data4/modperl 1.0TB 80% 953.2GB
70.8GB Yes No
/data4/dem 1.0GB 80% 0Bytes
1.0GB No No
/projects-hydrology-archive0 5.0TB 80% 14.4TB
0Bytes Yes Yes
/climate-downscale-idf-ec 7.5TB 80% 5.1TB
2.4TB No No
/climate-downscale-idf 5.0TB 80% 6.1TB
0Bytes Yes Yes
/home 5.0TB 80% 11.8TB
0Bytes Yes Yes
/projects-hydrology-scratch0 7.0TB 80% 169.1GB
6.8TB No No
/projects-rci-scratch 10.0TB 80% 1.9TB
8.1TB No No
/projects-dataportal 1.0TB 80% 775.4GB
248.6GB No No
/modules 1.0TB 80% 36.1GB
987.9GB No No
/data4/climate/downscale/CMIP5 65.0TB 80% 56.4TB
8.6TB Yes No
Gluster is listing 'Used' space of over 307TB on /data4/climate, but
the volume capacity is only 146T.
This has happened after disabling quotas on the volume, re-enabling
quotas, and then setting quotas again. There was a lot of glusterfsd
CPU usage afterwards, and now 3 days later the quota's I set were all
missing except
/data4/projects|800.0GB|2.0TB|0Bytes
So I re-set the quotas and the output above is what I have.
Previous to disabling quota's this was the output:
# gluster volume quota storage list
Path Hard-limit Soft-limit Used
Available Soft-limit exceeded? Hard-limit exceeded?
---------------------------------------------------------------------------------------------------------------------------
/data4/climate 105.0TB 80% 151.6TB
0Bytes Yes Yes
/data4/forestry 50.0GB 80% 45.4GB
4.6GB Yes No
/data4/projects 800.0GB 80% 753.1GB
46.9GB Yes No
/data4/strays 85.0GB 80% 80.8GB
4.2GB Yes No
/data4/gis 2.2TB 80% 2.1TB
91.8GB Yes No
/data4/modperl 1.0TB 80% 948.1GB
75.9GB Yes No
/data4/dem 1.0GB 80% 0Bytes
1.0GB No No
/projects-CanSISE 10.0TB 80% 11.9TB
0Bytes Yes Yes
/projects-hydrology-archive0 5.0TB 80% 4.8TB
174.0GB Yes No
/climate-downscale-idf-ec 7.5TB 80% 5.0TB
2.5TB No No
/climate-downscale-idf 5.0TB 80% 3.8TB
1.2TB No No
/home 5.0TB 80% 4.7TB
283.8GB Yes No
/projects-hydrology-scratch0 7.0TB 80% 95.9GB
6.9TB No No
/projects-rci-scratch 10.0TB 80% 1.7TB
8.3TB No No
/projects-dataportal 1.0TB 80% 775.4GB
248.6GB No No
/modules 1.0TB 80% 14.6GB
1009.4GB No No
/data4/climate/downscale/CMIP5 65.0TB 80% 56.4TB
8.6TB Yes No
I was so focused on the /projects-CanSISE quota not being accurate
that I missed that the 'Used' space on /data4/climate is listed higher
then the total gluster volume capacity.
On Mon, Jan 25, 2016 at 10:52 AM, Steve Dainard <sdainard at spd1.com>
wrote:> Hi Manikandan
>
> I'm using 'du' not df in this case.
>
> On Thu, Jan 21, 2016 at 9:20 PM, Manikandan Selvaganesh
> <mselvaga at redhat.com> wrote:
>> Hi Steve,
>>
>> If you would like disk usage using df utility by taking quota limits
into
>> consideration, then you are expected to run the following command.
>>
>> 'gluster volume set VOLNAME quota-deem-statfs on'
>>
>> with older versions where quota-deem-statfs is OFF by default. However
with
>> the latest versions, quota-deem-statfs is by default ON. In this case,
the total
>> disk space of the directory is taken as the quota hard limit set on the
directory
>> of the volume and disk utility would display accordingly. This answers
why there is
>> a mismatch in disk utility.
>>
>> Next, answering to quota mechanism and accuracy: There is something
called timeouts
>> in quota. For performance reasons, quota caches the directory size on
client. You can
>> set timeout indicating the maximum valid duration of directory sizes in
cache,
>> from the time they are populated. By default the hard-timeout is 5s and
soft timeout
>> is 60s. Setting a timeout of zero will do a force fetching of directory
sizes from server
>> for every operation that modifies file data and will effectively
disables directory size
>> caching on client side. If you do not have a timeout of 0(which we do
not encourage due to
>> performance reasons), then till you reach soft-limit, soft timeout will
be taken into
>> consideration, and only for every 60s operations will be synced and
that could cause the
>> usage to exceed more than the hard-limit specified. If you would like
quota to
>> strictly enforce then please run the following commands,
>>
>> 'gluster v quota VOLNAME hard-timeout 0s'
>> 'gluster v quota VOLNAME soft-timeout 0s'
>>
>> Appreciate your curiosity in exploring and if you would like to know
more about quota
>> please refer[1]
>>
>> [1]
http://gluster.readthedocs.org/en/release-3.7.0-1/Administrator%20Guide/Directory%20Quota/
>>
>> --
>> Thanks & Regards,
>> Manikandan Selvaganesh.
>>
>> ----- Original Message -----
>> From: "Steve Dainard" <sdainard at spd1.com>
>> To: "gluster-users at gluster.org List" <gluster-users at
gluster.org>
>> Sent: Friday, January 22, 2016 1:40:07 AM
>> Subject: Re: [Gluster-users] Quota list not reflecting disk usage
>>
>> This is gluster 3.6.6.
>>
>> I've attempted to disable and re-enable quota's on the volume,
but
>> when I re-apply the quotas on each directory the same 'Used'
value is
>> present as before.
>>
>> Where is quotad getting its information from, and how can I clean
>> up/regenerate that info?
>>
>> On Thu, Jan 21, 2016 at 10:07 AM, Steve Dainard <sdainard at
spd1.com> wrote:
>>> I have a distributed volume with quota's enabled:
>>>
>>> Volume Name: storage
>>> Type: Distribute
>>> Volume ID: 26d355cb-c486-481f-ac16-e25390e73775
>>> Status: Started
>>> Number of Bricks: 4
>>> Transport-type: tcp
>>> Bricks:
>>> Brick1: 10.0.231.50:/mnt/raid6-storage/storage
>>> Brick2: 10.0.231.51:/mnt/raid6-storage/storage
>>> Brick3: 10.0.231.52:/mnt/raid6-storage/storage
>>> Brick4: 10.0.231.53:/mnt/raid6-storage/storage
>>> Options Reconfigured:
>>> performance.cache-size: 1GB
>>> performance.readdir-ahead: on
>>> features.quota: on
>>> diagnostics.brick-log-level: WARNING
>>>
>>> Here is a partial list of quotas:
>>> # /usr/sbin/gluster volume quota storage list
>>> Path Hard-limit Soft-limit
Used
>>> Available Soft-limit exceeded? Hard-limit exceeded?
>>>
---------------------------------------------------------------------------------------------------------------------------
>>> ...
>>> /projects-CanSISE 10.0TB 80%
11.9TB
>>> 0Bytes Yes Yes
>>> ...
>>>
>>> If I du on that location I do not get 11.9TB of space used (fuse
mount point):
>>> [root at storage projects-CanSISE]# du -hs
>>> 9.5T .
>>>
>>> Can someone provide an explanation for how the quota mechanism
tracks
>>> disk usage? How often does the quota mechanism check its accuracy?
And
>>> how could it get so far off?
>>>
>>> Can I get gluster to rescan that location and update the quota
usage?
>>>
>>> Thanks,
>>> Steve
>> _______________________________________________
>> Gluster-users mailing list
>> Gluster-users at gluster.org
>> http://www.gluster.org/mailman/listinfo/gluster-users
Manikandan Selvaganesh
2016-Jan-25 20:09 UTC
[Gluster-users] Quota list not reflecting disk usage
Hi Steve,
Also, do you have any plans to upgrade to the latest version. With 3.7,
we have re factored some approaches used in quota and marker and that have
fixed quite some issues.
--
Thanks & Regards,
Manikandan Selvaganesh.
----- Original Message -----
From: "Manikandan Selvaganesh" <mselvaga at redhat.com>
To: "Steve Dainard" <sdainard at spd1.com>
Cc: "gluster-users at gluster.org List" <gluster-users at
gluster.org>
Sent: Tuesday, January 26, 2016 1:31:10 AM
Subject: Re: [Gluster-users] Quota list not reflecting disk usage
Hi Steve,
Could you send us the glusterfs logs, it could help us debug the issue!!
--
Thanks & Regards,
Manikandan Selvaganesh.
----- Original Message -----
From: "Steve Dainard" <sdainard at spd1.com>
To: "Manikandan Selvaganesh" <mselvaga at redhat.com>
Cc: "gluster-users at gluster.org List" <gluster-users at
gluster.org>
Sent: Tuesday, January 26, 2016 12:56:22 AM
Subject: Re: [Gluster-users] Quota list not reflecting disk usage
Something is seriously wrong with the quota output:
# gluster volume quota storage list
Path Hard-limit Soft-limit Used
Available Soft-limit exceeded? Hard-limit exceeded?
---------------------------------------------------------------------------------------------------------------------------
/projects-CanSISE 10.0TB 80% 27.8TB
0Bytes Yes Yes
/data4/climate 105.0TB 80% 307.1TB
0Bytes Yes Yes
/data4/forestry 50.0GB 80% 61.9GB
0Bytes Yes Yes
/data4/projects 800.0GB 80% 2.0TB
0Bytes Yes Yes
/data4/strays 85.0GB 80% 230.5GB
0Bytes Yes Yes
/data4/gis 2.2TB 80% 6.3TB
0Bytes Yes Yes
/data4/modperl 1.0TB 80% 953.2GB
70.8GB Yes No
/data4/dem 1.0GB 80% 0Bytes
1.0GB No No
/projects-hydrology-archive0 5.0TB 80% 14.4TB
0Bytes Yes Yes
/climate-downscale-idf-ec 7.5TB 80% 5.1TB
2.4TB No No
/climate-downscale-idf 5.0TB 80% 6.1TB
0Bytes Yes Yes
/home 5.0TB 80% 11.8TB
0Bytes Yes Yes
/projects-hydrology-scratch0 7.0TB 80% 169.1GB
6.8TB No No
/projects-rci-scratch 10.0TB 80% 1.9TB
8.1TB No No
/projects-dataportal 1.0TB 80% 775.4GB
248.6GB No No
/modules 1.0TB 80% 36.1GB
987.9GB No No
/data4/climate/downscale/CMIP5 65.0TB 80% 56.4TB
8.6TB Yes No
Gluster is listing 'Used' space of over 307TB on /data4/climate, but
the volume capacity is only 146T.
This has happened after disabling quotas on the volume, re-enabling
quotas, and then setting quotas again. There was a lot of glusterfsd
CPU usage afterwards, and now 3 days later the quota's I set were all
missing except
/data4/projects|800.0GB|2.0TB|0Bytes
So I re-set the quotas and the output above is what I have.
Previous to disabling quota's this was the output:
# gluster volume quota storage list
Path Hard-limit Soft-limit Used
Available Soft-limit exceeded? Hard-limit exceeded?
---------------------------------------------------------------------------------------------------------------------------
/data4/climate 105.0TB 80% 151.6TB
0Bytes Yes Yes
/data4/forestry 50.0GB 80% 45.4GB
4.6GB Yes No
/data4/projects 800.0GB 80% 753.1GB
46.9GB Yes No
/data4/strays 85.0GB 80% 80.8GB
4.2GB Yes No
/data4/gis 2.2TB 80% 2.1TB
91.8GB Yes No
/data4/modperl 1.0TB 80% 948.1GB
75.9GB Yes No
/data4/dem 1.0GB 80% 0Bytes
1.0GB No No
/projects-CanSISE 10.0TB 80% 11.9TB
0Bytes Yes Yes
/projects-hydrology-archive0 5.0TB 80% 4.8TB
174.0GB Yes No
/climate-downscale-idf-ec 7.5TB 80% 5.0TB
2.5TB No No
/climate-downscale-idf 5.0TB 80% 3.8TB
1.2TB No No
/home 5.0TB 80% 4.7TB
283.8GB Yes No
/projects-hydrology-scratch0 7.0TB 80% 95.9GB
6.9TB No No
/projects-rci-scratch 10.0TB 80% 1.7TB
8.3TB No No
/projects-dataportal 1.0TB 80% 775.4GB
248.6GB No No
/modules 1.0TB 80% 14.6GB
1009.4GB No No
/data4/climate/downscale/CMIP5 65.0TB 80% 56.4TB
8.6TB Yes No
I was so focused on the /projects-CanSISE quota not being accurate
that I missed that the 'Used' space on /data4/climate is listed higher
then the total gluster volume capacity.
On Mon, Jan 25, 2016 at 10:52 AM, Steve Dainard <sdainard at spd1.com>
wrote:> Hi Manikandan
>
> I'm using 'du' not df in this case.
>
> On Thu, Jan 21, 2016 at 9:20 PM, Manikandan Selvaganesh
> <mselvaga at redhat.com> wrote:
>> Hi Steve,
>>
>> If you would like disk usage using df utility by taking quota limits
into
>> consideration, then you are expected to run the following command.
>>
>> 'gluster volume set VOLNAME quota-deem-statfs on'
>>
>> with older versions where quota-deem-statfs is OFF by default. However
with
>> the latest versions, quota-deem-statfs is by default ON. In this case,
the total
>> disk space of the directory is taken as the quota hard limit set on the
directory
>> of the volume and disk utility would display accordingly. This answers
why there is
>> a mismatch in disk utility.
>>
>> Next, answering to quota mechanism and accuracy: There is something
called timeouts
>> in quota. For performance reasons, quota caches the directory size on
client. You can
>> set timeout indicating the maximum valid duration of directory sizes in
cache,
>> from the time they are populated. By default the hard-timeout is 5s and
soft timeout
>> is 60s. Setting a timeout of zero will do a force fetching of directory
sizes from server
>> for every operation that modifies file data and will effectively
disables directory size
>> caching on client side. If you do not have a timeout of 0(which we do
not encourage due to
>> performance reasons), then till you reach soft-limit, soft timeout will
be taken into
>> consideration, and only for every 60s operations will be synced and
that could cause the
>> usage to exceed more than the hard-limit specified. If you would like
quota to
>> strictly enforce then please run the following commands,
>>
>> 'gluster v quota VOLNAME hard-timeout 0s'
>> 'gluster v quota VOLNAME soft-timeout 0s'
>>
>> Appreciate your curiosity in exploring and if you would like to know
more about quota
>> please refer[1]
>>
>> [1]
http://gluster.readthedocs.org/en/release-3.7.0-1/Administrator%20Guide/Directory%20Quota/
>>
>> --
>> Thanks & Regards,
>> Manikandan Selvaganesh.
>>
>> ----- Original Message -----
>> From: "Steve Dainard" <sdainard at spd1.com>
>> To: "gluster-users at gluster.org List" <gluster-users at
gluster.org>
>> Sent: Friday, January 22, 2016 1:40:07 AM
>> Subject: Re: [Gluster-users] Quota list not reflecting disk usage
>>
>> This is gluster 3.6.6.
>>
>> I've attempted to disable and re-enable quota's on the volume,
but
>> when I re-apply the quotas on each directory the same 'Used'
value is
>> present as before.
>>
>> Where is quotad getting its information from, and how can I clean
>> up/regenerate that info?
>>
>> On Thu, Jan 21, 2016 at 10:07 AM, Steve Dainard <sdainard at
spd1.com> wrote:
>>> I have a distributed volume with quota's enabled:
>>>
>>> Volume Name: storage
>>> Type: Distribute
>>> Volume ID: 26d355cb-c486-481f-ac16-e25390e73775
>>> Status: Started
>>> Number of Bricks: 4
>>> Transport-type: tcp
>>> Bricks:
>>> Brick1: 10.0.231.50:/mnt/raid6-storage/storage
>>> Brick2: 10.0.231.51:/mnt/raid6-storage/storage
>>> Brick3: 10.0.231.52:/mnt/raid6-storage/storage
>>> Brick4: 10.0.231.53:/mnt/raid6-storage/storage
>>> Options Reconfigured:
>>> performance.cache-size: 1GB
>>> performance.readdir-ahead: on
>>> features.quota: on
>>> diagnostics.brick-log-level: WARNING
>>>
>>> Here is a partial list of quotas:
>>> # /usr/sbin/gluster volume quota storage list
>>> Path Hard-limit Soft-limit
Used
>>> Available Soft-limit exceeded? Hard-limit exceeded?
>>>
---------------------------------------------------------------------------------------------------------------------------
>>> ...
>>> /projects-CanSISE 10.0TB 80%
11.9TB
>>> 0Bytes Yes Yes
>>> ...
>>>
>>> If I du on that location I do not get 11.9TB of space used (fuse
mount point):
>>> [root at storage projects-CanSISE]# du -hs
>>> 9.5T .
>>>
>>> Can someone provide an explanation for how the quota mechanism
tracks
>>> disk usage? How often does the quota mechanism check its accuracy?
And
>>> how could it get so far off?
>>>
>>> Can I get gluster to rescan that location and update the quota
usage?
>>>
>>> Thanks,
>>> Steve
>> _______________________________________________
>> Gluster-users mailing list
>> Gluster-users at gluster.org
>> http://www.gluster.org/mailman/listinfo/gluster-users
_______________________________________________
Gluster-users mailing list
Gluster-users at gluster.org
http://www.gluster.org/mailman/listinfo/gluster-users