I don't know if we want this thread to turn into a show and tell, but our
stack is:
PROD
- vm for Apache
- vm for Tomcat (DSpace)
- vm for Postgres
- vm for Elastic Search
And then repeat that two more times, with a complete replica of the stack
for Staging, and for Development. Development is actually done on my laptop
though. The total for us is 12 vm's. But its shared among our IT/App
groups, and other things use the prod/staging/dev apache, postgres, and
elasticsearch. When we run into growing pains, our first response is to
just scale vertically, and add more memory and another CPU, and that
usually suffices for us.
Elastic Search supports clustering natively, we haven't looked into
Postgres replication/pooling yet, and for Apache we are considering things
like HA-Proxy, but for now we suffice. I haven't looked into such things as
a load balanced DSpace/tomcat. I'm not sure I understand all of the
requirements of that, regarding data, and sessions.
If you've got a light-weight use case, then a spare Dell box under
someone's desk has worked for us in the past, atleast to spin up a
dedicated dev-box for someone.
Peter Dietz
On Tue, Nov 19, 2013 at 4:16 AM, TAYLOR Robin <robin.tay...@ed.ac.uk> wrote:
> Hi Hardy,
>
> I am a little wary about recommending hardware, there are so many
> different use cases for DSpace out there. I was once contacted by an
> architects office that just wanted somewhere to store their drawings. The
> danger is that someone considering DSpace may conclude that our
> recommendation is the minimum requirement, when their use case would
> require something more lightweight. In some cases a PC in the corner of
> the room with some backup facility might be sufficient.
>
> Cheers, Robin.
>
>
> On 18/11/2013 20:24, "Pottinger, Hardy J." <pottinge...@missouri.edu>
> wrote:
>
> >Hi, I have been asking around privately for hardware recommendations for
> >running DSpace in production, and I noticed we have an old page of advice
> >here:
> >
> >https://wiki.duraspace.org/display/DSPACE/EndUserFaq
> >
> >
> >We should probably have a page of hardware advice for production DSpace on
> >the "official" DSpace wiki (that End User FAQ page isn't quite there).
> >>From all my asking around, here's what I've come up with for production:
> >
> >First, there's a question of approach. Most of the people I asked were
> >running PostgreSQL on a separate machine (DB tuning and troubleshooting is
> >not the same thing as Tomcat tuning and troubleshooting).
> >
> >So, if one is running an application stack on one machine, and a DB on
> >another machine, the specs for those machines would be different than an
> >"everything on one box" approach. Everything on one box is appropriate for
> >a staging/development server (which would have smaller requirements than
> >production). I've got a pretty good idea of what to recommend for the
> >application stack box and DB box, so I'll include those specs below. But,
> >if you have another suggestion, I'd love to hear about it.
> >
> >Three-box approach to DSpace
> >
> >Production Application Box:
> >4 CPU, 4GB of RAM, and with the following stack set up (note some of this
> >is specific to our environment):
> >Java 7 (OpenJDK is fine)
> >Tomcat 7
> >Ant 1.8.2 or higher
> >Maven3 (3.0.4 or higher)
> >Shibboleth SP 2.5 or higher (optional)
> >Apache 2.0 (optional)
> >PHP 5.3.3 (optional)
> >As much storage as you need for your production bitstream content (very
> >environment-specific, external SAN storage recommended)
> >
> >Production DB Box:
> >1 CPU, 2GB of RAM
> >With this software installed:
> >PostgreSQL server
> >
> >As much storage as you need for a DB, probably the default space for your
> >VM will be sufficient.
> >
> >
> >Staging Box (everything on one box):
> >2 CPU, 2GB of RAM, and with the following stack set up (note some of this
> >is specific to our environment):
> >Java 7 (OpenJDK is fine)
> >Tomcat 7
> >Ant 1.8.2 or higher
> >Maven3 (3.0.4 or higher)
> >Shibboleth SP 2.5 or higher (optional)
> >Apache 2.0 (optional)
> >PHP 5.3.3 (optional)
> >PostgreSQL server
> >
> >As much storage as you need for your staging and development bitstream
> >content (very environment-specific, external SAN storage recommended)
> >
> >
> >
> >--
> >HARDY POTTINGER <pottinge...@umsystem.edu>
> >University of Missouri Library Systems
> >http://lso.umsystem.edu/~pottingerhj/
> >https://MOspace.umsystem.edu/
> >"We shall not cease from exploration, and at the end of all our exploring
> >will be to arrive where we started and know the place for the first time."
> >--T.S. Eliot
> >
> >
> >
> >
> >--------------------------------------------------------------------------
> >----
> >Shape the Mobile Experience: Free Subscription
> >Software experts and developers: Be at the forefront of tech innovation.
> >Intel(R) Software Adrenaline delivers strategic insight and game-changing
> >conversations that shape the rapidly evolving mobile landscape. Sign up
> >now.
> >
> http://pubads.g.doubleclick.net/gampad/clk?id=63431311&iu=/4140/ostg.clktr
> >k
> >_______________________________________________
> >Dspace-devel mailing list
> >Dspace-devel@lists.sourceforge.net
> >https://lists.sourceforge.net/lists/listinfo/dspace-devel
>
>
> --
> The University of Edinburgh is a charitable body, registered in
> Scotland, with registration number SC005336.
>
>
>
> ------------------------------------------------------------------------------
> Shape the Mobile Experience: Free Subscription
> Software experts and developers: Be at the forefront of tech innovation.
> Intel(R) Software Adrenaline delivers strategic insight and game-changing
> conversations that shape the rapidly evolving mobile landscape. Sign up
> now.
> http://pubads.g.doubleclick.net/gampad/clk?id=63431311&iu=/4140/ostg.clktrk
> _______________________________________________
> Dspace-devel mailing list
> Dspace-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/dspace-devel
>
------------------------------------------------------------------------------
Shape the Mobile Experience: Free Subscription
Software experts and developers: Be at the forefront of tech innovation.
Intel(R) Software Adrenaline delivers strategic insight and game-changing
conversations that shape the rapidly evolving mobile landscape. Sign up now.
http://pubads.g.doubleclick.net/gampad/clk?id=63431311&iu=/4140/ostg.clktrk
_______________________________________________
Dspace-devel mailing list
Dspace-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dspace-devel
