[Gluster-users] Big I/O or gluster proccess problem

Bedis 9 bedis9 at gmail.com
Thu May 20 12:54:15 UTC 2010


Hey,

If you're using Gluster, please tell us which version you're running...

cheers


On Thu, May 20, 2010 at 2:12 PM, Tejas N. Bhise <tejas at gluster.com> wrote:
> Ran,
>
> Can you please elaborate on - "2 servers in distrebute mod , each has 1 TB brick that replicate to each other using DRBD"
> Also, how many drives do you have and what does iowait look like when you write a big file ? Tell us more about the configs of your servers, share the volume files.
>
> Regards,
> Tejas.
>
> ----- Original Message -----
> From: "Ran" <smtp.test61 at gmail.com>
> To: Gluster-users at gluster.org
> Sent: Thursday, May 20, 2010 4:49:52 PM
> Subject: [Gluster-users] Big I/O or gluster proccess problem
>
> Hi all ,
> Our problem is simple but quite critical i posted few mounts ago regarding
> that issue and there was a good responses but not a fix
> What happen is that gluster stack when there is a big wrtite to it .
> For example  time dd if=/dev/zero of=file bs=10240 count=1000000
> OR mv 20gig_file.img into gluster mount .
> When that happen the all storage freezes for the entire proccess , mails ,
> few vps's , simple dir etc..
> Our setup is quite simple at this point , 2 servers in distrebute mod , each
> has 1 TB brick that replicate to each other using DRBD .
> iv monitored closly everting on this big writes and noticed that its not mem
> , proc , network problem .
> Iv also checked the same setup with simple NFS and its not happening there .
> Anyone has any idea on how to fix this , if you cant write big files into
> gluster without making the storage unfunctional then you cant realy do
> anything .
>
> Please advise ,
>
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