[Gluster-users] cluster.min-free-disk is not working in distributed disperse volume

[Mohamed Pakkeer]

Hi Susant,

   Thanks for your quick reply. We are not updating any files. Actually we
are archiving video files on this cluster. I think there is a bug in
cluster.min-free-disk.

Also i would like to know about rebalance the cluster. Currently we have 20
nodes and 10 nodes hard disks are almost full . So we need to rebalance the
data. If i run the rebalancer, it starts on first node(node1)  and starts
the migration process. The first node cpu usage is always high during
rebalance compare with rest of the cluster nodes.To reduce the cpu usage of
rebalancer  datanode( node1), i peer a new node( without disk) for
rebalance and start the rebalancer. It starts again the rebalancer on same
node1. How can we run a rebalancer on a dedicated node?

Also we are facing memory leaks in fixlayout and heal full operations.

Regards
Backer

On Mon, Aug 24, 2015 at 2:57 PM, Susant Palai <spalai at redhat.com> wrote:

> Hi,
>   Cluster.min-free-disk controls new file creation on the bricks. If you
> happen to write to the existing files on the brick and that is leading to
> brick getting full, then most probably you should run a rebalance.
>
> Regards,
> Susant
>
> ----- Original Message -----
> From: "Mathieu Chateau" <mathieu.chateau at lotp.fr>
> To: "Mohamed Pakkeer" <mdfakkeer at gmail.com>
> Cc: "gluster-users" <gluster-users at gluster.org>, "Gluster Devel" <
> gluster-devel at gluster.org>
> Sent: Monday, 24 August, 2015 2:47:00 PM
> Subject: Re: [Gluster-users] cluster.min-free-disk is not working in
> distributed disperse volume
>
>
>
>
> 720 brick! Respect !
> Le 24 août 2015 09:48, "Mohamed Pakkeer" < mdfakkeer at gmail.com > a écrit :
>
>
>
> Hi,
>
>
> I have a cluster of 720 bricks, all bricks are 4TB in size. I have change
> the cluster.min-free-disk default value 10% to 3%. So all the disks should
> have 3% minimum disk space free. But some cluster disks are getting full
> now. Is there any additional configuration for keeping some percentage of
> disk space kept free?
>
>
>
>
>
> Volume Name: glustertest
> Type: Distributed-Disperse
> Volume ID: 2b575b5c-df2e-449c-abb9-c56cec27e609
> Status: Started
> Number of Bricks: 72 x (8 + 2) = 720
> Transport-type: tcp
>
>
>
>
>
> Options Reconfigured:
> features.default-soft-limit: 95%
> cluster.min-free-disk: 3%
> performance.readdir-ahead: on
>
>
> df -h of one node
>
>
>
> /dev/sdb1 3.7T 3.6T 132G 97% /media/disk1
> /dev/sdc1 3.7T 3.2T 479G 88% /media/disk2
> /dev/sdd1 3.7T 3.6T 109G 98% /media/disk3
>
>
> Any help will be greatly appreciated.
>
>
>
>
> Regards
> Backer
>
>
>
>
>
>
>
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-- 
Thanks & Regards
K.Mohamed Pakkeer
Mobile- 0091-8754410114
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