I would like to join Goncalo in his request... I actually think this is an
important step, since it will definately affect the way the grid interacts with
to your site.
It's also the kind of thing that is difficult to test before deploying, and as
mentioned before, there are many use cases.
I'm not saying the documentation has to cover all possible cases, but it
should definately cover at least one example of every combination (one to one,
one to many, many to one, and many to many). And I would say it's more
important to give complex examples, since most problems will come from complex
sites.
Also I would not consider sites have just one queue for all VOs, there's just
a couple of VOs that share the same limits, if any.
Thanks,
Pablo
On Monday 21 March 2011 16:48:27 you wrote:
> Hi ...
>
> >> IMHO, I think that the gLite Cluster staff should present several use
> >> cases and how to implement those different scenarios using gLite
> >> Cluster. This would make the transition easier. I understand that
> >> gLite-Cluster is really useful, but from my first attempt trying to
> >> check on the service, it seems that I have to go through an adiabatic
> >> transition from my current topology to the new one.
> >
> > What kind of thing do you find difficult? In terms of deciding how many
> > clusters you need I think it's quite hard to give general guidance
> > because sites are all different, and the needs of their users may also
> > be different, e.g. support for jobs with large memory requirements.
>
> Maybe it is just my problem of not understanding enough the Glue Schema
> concepts (I guess I'm not the only one) but I think that examples of use
> cases should be given.
>
> Some time ago the following document was provided to WLCG site admin in
> order to publish correct information using several CEs connected to
> several subclusters:
>
> http://www.italiangrid.org/sites/default/files/GridMap_CPU_counting.pdf
>
> A good/general starting point would be how to implement the scenario
> explained there using gLite-Cluster.
>
>
> Cheers
> Goncalo
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