[Gluster-users] False notifications

[Sahina Bose]

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.

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

We will be putting together a short doc on these soon, meanwhile, please 
feel free to check it out and give us your valuable feedback.



>
> network.ping-timeout is set to 2, because I can not allow VM servers 
> to hang for 2x42sec when other node is rebooted (we have some kind of 
> reboot policy)..
>
> Thanks for help,
> Milos
>
>
>
>
>
>
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org
> http://supercolony.gluster.org/mailman/listinfo/gluster-users

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://supercolony.gluster.org/pipermail/gluster-users/attachments/20140514/b96d2a28/attachment.html>