[Gluster-users] Newbee Question: GlusterFS on Compute Cluster?

[James]

On Fri, 2013-05-10 at 17:57 -0500, Adam Tygart wrote:
> James,
Hey!

> 
> vrrp works fine, but from what I understand of the Gluster FUSE mount
> process is that it will read the whole of the rrdns response and keep
> trying to get the volfile from the others if the first server fails to
> respond.
Interesting... I didn't know that it did this. Can someone verify?

Also, you could still have problems with cached dns records. I'm sure rr
is a fine solution, and I might be being a bit pedantic. The nice thing
is that you get to choose!

Good luck,
James

> 
> --
> Adam
> 
> 
> On Fri, May 10, 2013 at 5:53 PM, James <purpleidea at gmail.com> wrote:
> 
> > On Fri, May 10, 2013 at 6:45 PM, Adam Tygart <mozes at k-state.edu> wrote:
> > > Randy,
> > >
> > > On my compute cluster we use round-robin dns (for HA of the volume
> > > definition) and mount the GlusterFS volume via the FUSE (native) client.
> > All
> > > of the I/O would go directly to the nodes, rather than through an
> > > intermediary (NFS) server.
> > I've mentioned this once before, but in my opinion, using something
> > like vrrp (eg: keepalived) is better than using rr-dns. Also it's
> > cooler.
> >
> > James
> >
> > >
> > > --
> > > Adam Tygart
> > > Beocat Sysadmin
> > > www.beocat.cis.ksu.edu
> > >
> > >
> > > On Fri, May 10, 2013 at 5:38 PM, Bradley, Randy <
> > Randy.Bradley at ars.usda.gov>
> > > wrote:
> > >>
> > >>
> > >> I've got a 24 node compute cluster.  Each node has one extra terabyte
> > >> drive.  It seemed reasonable to install Gluster on each of the compute
> > nodes
> > >> and the head node.  I created a volume from the head node:
> > >>
> > >> gluster volume create gv1 rep 2 transport tcp compute000:/export/brick1
> > >> compute001:/export/brick1 compute002:/export/brick1
> > >> compute003:/export/brick1 compute004:/export/brick1
> > >> compute005:/export/brick1 compute006:/export/brick1
> > >> compute007:/export/brick1 compute008:/export/brick1
> > >> compute009:/export/brick1 compute010:/export/brick1
> > >> compute011:/export/brick1 compute012:/export/brick1
> > >> compute013:/export/brick1 compute014:/export/brick1
> > >> compute015:/export/brick1 compute016:/export/brick1
> > >> compute017:/export/brick1 compute018:/export/brick1
> > >> compute019:/export/brick1 compute020:/export/brick1
> > >> compute021:/export/brick1 compute022:/export/brick1
> > >> compute023:/export/brick1
> > >>
> > >> And then I mounted the volume on the head node.  So far, so good.  Apx.
> > 10
> > >> TB available.
> > >>
> > >> Now I would like each compute node to be able to access files on this
> > >> volume.  Would this be done by NFS mount from the head node to the
> > compute
> > >> nodes or is there a better way?
> > >>
> > >>
> > >> Thanks,
> > >>
> > >> Randy
> > >>
> > >>
> > >>
> > >>
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