[Gluster-users] High I/O And Processor Utilization

[Krutika Dhananjay]

----- Original Message -----

> From: "Ravishankar N" <ravishankar at redhat.com>
> To: "Kyle Harris" <kyle.harris98 at gmail.com>, gluster-users at gluster.org
> Sent: Saturday, January 9, 2016 7:06:04 AM
> Subject: Re: [Gluster-users] High I/O And Processor Utilization

> On 01/09/2016 01:44 AM, Kyle Harris wrote:

> > It’s been a while since I last ran GlusterFS so I thought I might give it
> > another try here at home in my lab. I am using the 3.7 branch on 2 systems
> > with a 3 rd being an arbiter node. Much like the last time I tried
> > GlusterFS, I keep running into issues with the glusterfsd process eating up
> > so many resources that the systems sometimes become all but unusable. A
> > quick Google search tells me I am not the only one to run into this issue
> > but I have yet to find a cure. The last time I ran GlusterFS, it was to
> > host
> > web sites and I just chalked the problem up to a large number of small
> > files. This time, I am using it to host VM’s and there are only 7 of them
> > and while they are running, they are not doing anything else.
> 
> The performance improvements for self-heal are still a
> (stalled_at_the_moment)-work-in-progress. But for VM use cases, you can turn
> on sharding [1], which will drastically reduce data self-heal time. Why
> don't you give it a spin on your lab setup and let us know how it goes? You
> might have to create the VMs again though since only the files that are
> created after enabling the feature will be sharded.

> -Ravi

> [1] http://blog.gluster.org/2015/12/introducing-shard-translator/

Kyle, 
I would recommend you to use glusterfs-3.7.6 if you intend to try sharding, because it contains some crucial bug fixes. 

-Krutika 

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