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

Ran smtp.test61 at gmail.com
Thu May 20 13:01:39 UTC 2010


Version 3.0.0

2010/5/20 Bedis 9 <bedis9 at gmail.com>

> 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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> > Gluster-users at gluster.org
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> >
>


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