Gluster users - Nov 2014 - Problem in Benchmarking Glusterfs with Bonnie++ on CentOS 6 machines

Hello List,

      I have set up a 4 node replicated distributed Filesystem using
Glusterfs on centos 6 machines.

I am trying to benchmark the glusterfs filesystem using Bonnie++, but as
soon as i run bonnie++ on  the client after some time i get an error saying:

Stat files in sequential order.... Expected 16384 files but only got 163811
files.
Cleaning up test directory after error.


The RAM size on my client is 490M and the mounted GlusterFS filessystem
mounted on the client is 11G.

Why might I be facing this issue? What can be a solution to this?


Thanks,
Gauri
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On 11/14/2014 11:13 PM, gauri Desai wrote:
> Hello List,
>
>        I have set up a 4 node replicated distributed Filesystem using
> Glusterfs on centos 6 machines.
>
> I am trying to benchmark the glusterfs filesystem using Bonnie++, but as
> soon as i run bonnie++ on  the client after some time i get an error
saying:
>
> Stat files in sequential order.... Expected 16384 files but only got
> 163811 files.
> Cleaning up test directory after error.
>
>
> The RAM size on my client is 490M and the mounted GlusterFS filessystem
> mounted on the client is 11G.
>
> Why might I be facing this issue? What can be a solution to this?
>
More details on your volume configuration (o/p of gluster volume info), 
possible errors in glusterfs log files, glusterfs version, the exact 
bonnie++ command line used etc. will help in narrowing down the problem.

Regards,
Vijay

On Fri, 14 Nov 2014 10:43:43 -0700
gauri Desai <gauridesai719 at gmail.com> wrote:
<snip>
> The RAM size on my client is 490M
Just to clarify, is this RAM size the total amount of memory
in the client system, or is this something else?  eg the
amount of ram gluster is using on a client

Personally, I'm not sure using less than 1GB of RAM on the
client is a good idea.

Saying that because (ages ago), when getting our regression
testing suite to run in Rackspace, I started out with 512MB
RAM virtual machines.  The regression tests wouldn't complete
on them at all. ;)

Not sure if that's the issue here though. :)

Regards and best wishes,

Justin Clift

-- 
GlusterFS - http://www.gluster.org

An open source, distributed file system scaling to several
petabytes, and handling thousands of clients.

My personal twitter: twitter.com/realjustinclift