[Gluster-users] False notifications

[Sahina Bose]

On 05/20/2014 07:12 PM, Milos Kozak wrote:
>
> On 5/14/2014 1:43 AM, Sahina Bose wrote:
>>
>> On 05/14/2014 07:42 AM, Miloš Kozák wrote:
>>> Hi,
>>> I am running a field trial of Gluster 3.5 on two servers. These two 
>>> server use one 10k HDD each with XFS as a brick. On top of these 
>>> bricks I have one replica 2 volume:
>>>
>>> [root at nodef01i ~]# gluster volume info ph-fs-0
>>>
>>> Volume Name: ph-fs-0
>>> Type: Replicate
>>> Volume ID: 5085e018-7c47-4d4f-8dcb-cd89ec240393
>>> Status: Started
>>> Number of Bricks: 1 x 2 = 2
>>> Transport-type: tcp
>>> Bricks:
>>> Brick1: 10.11.100.1:/gfs/s3-sata-10k/brick
>>> Brick2: 10.11.100.2:/gfs/s3-sata-10k/brick
>>> Options Reconfigured:
>>> performance.io-thread-count: 12
>>> network.ping-timeout: 2
>>> performance.cache-max-file-size: 0
>>> performance.flush-behind: on
>>>
>>> Additionally I am running nagios to monitor everything where I use 
>>> http://exchange.nagios.org/directory/Plugins/System-Metrics/File-System/GlusterFS-checks/details. 
>>> I improved it slightly such that I monitor number of split-brain 
>>> files and all this information go to the performance data, therefore 
>>> I can draw pictures out of it (these pictures are in attachement).
>>>
>>> My problem is that I am receiving quite a lot of false warning from 
>>> nagios during a day because there are some unsync files (gluster 
>>> volume heal XXX info). I dont know if it is a bug or it is cause by 
>>> my configuration. Either way it is quite disturbing and I am afraid 
>>> that after receiving a lot false warning I could just omit an 
>>> important one..
>>
>>
>> I think the issue is because the "gluster volume heal info" also 
>> reports files undergoing I/O in addition to files that need 
>> self-heal. see 
>> http://supercolony.gluster.org/pipermail/gluster-users/2014-May/040239.html 
>> for more information on this. Pranith, please correct me if wrong.
>>
> It makes sense, but it is quiet inconvenient to check logs to be sure 
> what is actually I/O and what is healing.. So I support this 
> initiative! Do you have any idea when it is going to be implemented?

I

Pranith?


>
>> On another note, we are also developing Nagios plugins that can be 
>> used to monitor the various entities and services in the gluster 
>> cluster. The repositories are here -
>>
>> gluster-nagios-addons - 
>> http://review.gluster.org/#/admin/projects/gluster-nagios-addons
>> nagios-server-addons - 
>> http://review.gluster.org/#/admin/projects/nagios-server-addons
>>
> These projects also look very interesting. I was googling, but I didnt 
> find the way how to install addon to glusterfs. Can you please give me 
> a hint? I would like to install it, test it and maybe I can write some 
> patches..
>
>

Have pushed a patch with instructions - http://review.gluster.org/#/c/7846/.

Please check this out and let us know. We look forward to your 
contributions!

thanks
sahina

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