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From "Luta, Raphael (VUN)" <Raphael.L...@groupvu.Com>
Subject RE: Parallel execution of portlets (repost from User list)
Date Fri, 25 Oct 2002 08:23:14 GMT
There's an old ThreadPool service used by Jetspeed for the syndication
engine
and I believe that Turbine also has one now since it has a very well
designed
generic PoolService.

> -----Message d'origine-----
> De : NAJMAN Yves - SOP ( YNajman@sophia-antipolis.sema.slb.com )
> [mailto:YNajman@sophia-antipolis.sema.slb.com]
> Envoyé : vendredi 25 octobre 2002 09:44
> À : 'Jetspeed Developers List' (E-mail)
> Objet : Parallel execution of portlets (repost from User list)
> 
> 
> As it was proposed by Raphael Luta, let's continue on the Dev list.
> 
> Summary: How to execute portlets in parallel?
> 
> 2 solutions proposed:
> 
> 1) from Josh Hone:
> > I have a relatively simple fix for velocity that allows 
> selective parallel
> 
> > execution, so that you can select which portlets interact 
> with each other.
> 
> > If you are familiar with velocity, it amounts to 
> subdividing the Context.
> 
> > Interested?  Does this sound like what you need?
> 
> 2) from Raphael Luta:
> > I don't personnally rate this as a high priority feature but if you
> > require it I give you some pointers on where to implement it in
> > Jetspeed and will welcome the patch :)
> 
> At the moment, I do not know which one is best.
> 
> Definitly, it would be nice to be able to flag a portlet as "parallel
> execution candidate": this would avoid to to start parallel 
> execution of all
> portlets.
> 
> As threads are involved, it seems reasonable to use a thread 
> pool (as far as
> I know, creating/destroying threads can be very hungry at 
> system resources,
> it is necessary to recycle them): is there a thread pool 
> already in place in
> JetSpeed/Turbine/Tomcat that can be used for that purpose.
> 
> Note: at the moment I have very few spare time to spend on 
> the subject and I
> am very new to the whole stuff (JetSpeed/Turbine). I hope 
> nobody have an
> urgent need for this feature :-)
> 
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