using the upstream_hash_module and handling changes when adding new servers

Cliff Wells cliff at
Tue Apr 7 21:59:23 MSD 2009

On Tue, 2009-04-07 at 10:18 -0700, Michael Shadle wrote:
> On Tue, Apr 7, 2009 at 9:17 AM, Larry Bates <larry.bates at> wrote:
> > I do something like this but solved it a completely different way.  I put
> > storage behind the balanced servers and shared it among them using NFS.  That
> > way every server sees a consistent set of files.  Otherwise users get "nailed"
> > to a server and that sort of defeats the purpose of load balancing.  Hope this
> > helps.
> >
> > -Larry
> yeah this is probably the traditional way, i do it this way as well.
> nfs can be annoying though; i would suggest using freebsd, netapp or a
> solaris based server instance if possible. nfs on linux is notoriously
> weak.

I'd suggest looking into one of the clustered filesystems such as GFS or
Lustre, although that might be more difficult to deploy on an existing


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