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Hi Stephen,

Michel complained as well about these updates. So I gather that QWG has 
had its fair share of problems.

cheers
alessandra
 
On Mon, 21 May 2007, Stephen Childs wrote:

> In the quattor world, we evaluate the contents of each update and don't
> include disruptive changes by default -- they must be explicitly requested by
> the admin in their configuration. In this way, necessary changes like VOMS
> cert get included by default but you don't break your DPM unless you really
> want to. The QWG distribution also allows easy selection of which update level
> you want to go to by just setting a variable.
> 
> All sites using the QWG distribution benefit from this filtering while
> retaining full autonomy if required. It's perhaps unfortunate that this level
> of filtering is required for core middleware updates, but that's the reality
> and at least this way we ensure that the silly problems are caught at a
> central point.
> 
> See https://trac.lal.in2p3.fr/LCGQWG/wiki/ReleaseNotes/gLite-3.0 for more
> info.
> 
> Just thought I'd slip a bit of Quattor promotion into the discussion! We feel
> that it really is the best way to save duplication of effort at sites with
> similar configurations (it has proved particularly effective for managing
> distributed Tier 2s).
> 
> Stephen
> -- 
> Dr. Stephen Childs,
> Research Fellow, EGEE Project,    phone:                    +353-1-8961797
> Computer Architecture Group,      email:        Stephen.Childs @ cs.tcd.ie
> Trinity College Dublin, Ireland   web: http://www.cs.tcd.ie/Stephen.Childs
> 

Alessandra Forti
NorthGrid Technical Coordinator
University of Manchester