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From Saddest OfAllKeys <keyofdmi...@yahoo.com>
Subject RE: scaling
Date Sat, 23 Mar 2002 14:10:14 GMT

re: small democracy. Cool... Btw, I made a semantic
leap in my message: I didn't mean that I could help
out as a benevolent dictator! Just meant I might be
able to lend a hand...

Can you elaborate a bit on clustering Jetspeed?  I'm
not sure if I understand.

thanks,
Mike

--- David Sean Taylor <david@bluesunrise.com> wrote:
> 
> > Thanks for the quick reply.
> > 
> > It sounds like a lot of the app needs to be
> > multithreaded.
> > 
> 
> There is multithreading:
> - The Tomcat pipeline (or whatever app server), get
> that for free.
> - in the delivery of feeds, disk cache mgr
> 
> But not in the aggregation engine specifically per
> request
> 
> > Is there an overall plan to go in this direction? 
> 
> I wouldn't say plan, more an understanding that we
> will address it
> sometime.
> 
> > Does this project have a benevolent dictator?  I
> might
> 
> We had Kevin, the project founder and architect, but
> that was before my
> time.
> Now we are a small yet balanced democracy, which is
> nice.
> 
> > be able to help out.  I must admit I'm new to the
> > whole Jakarta scene.
> > 
> > thanks,
> > Mike
> > 
> > --- David Sean Taylor <david@bluesunrise.com>
> wrote:
> > > We've added PSML into the database, Im doing the
> > > same for registries
> > > now.
> > > Goal is clustering Jetspeed
> > > 
> > > The aggregation engine is good, I did some
> > > performance tuning on it
> > > recently.
> > > I'd like to take a few days sometime and try to
> tune
> > > the engine.
> > > Areas of improvement:
> > > -- payload is always dependent on the slowest
> > > portlet.
> > > -- there is no timeout on a portlet to generate
> its
> > > content
> > > -- all portlets content is aggregated on the
> same
> > > thread.
> > > -- caching of portlet container elements
> > > 
> > > We have caching built into to most of the major
> > > features.
> > > IMO the logging is excessive, we should do
> something
> > > like
> > > 
> > > If (loggingON)
> > > 	log("big long string constructor" + blah)
> > > 
> > > Instead of
> > > 
> > > Log(""big long string constructor" + blah)
> > > 
> > > Don't know how much that will improve speed,
> have to
> > > test it
> > > 
> > > Jetspeed logs the basic aggregation cycle to the
> log
> > > file
> > > Look for things like:
> > > 
> > > [Fri Mar 22 11:08:40 PST 2002] -- DEBUG --
> > > PortletFactory.getPortlet():
> > > took a total of 0 millisecond(s) ->
> > >
> >
>
-1653569551|template-hello|action-portlets.HelloAction|text-Hello
> > > World
> > > in Velocity
> > > 
> > > 
> > > > -----Original Message-----
> > > > From: Saddest OfAllKeys
> > > [mailto:keyofdminor@yahoo.com]
> > > > Sent: Friday, March 22, 2002 11:49 AM
> > > > To: jetspeed-dev@jakarta.apache.org
> > > > Subject: scaling
> > > > 
> > > > 
> > > > 
> > > > Is Jetspeed being architected so that it can
> > > scale?
> > > > 
> > > > Does anyone have an experience or anecdotal
> > > evidence
> > > > regarding load testing of a Jetspeed app?
> > > > 
> > > > I'm blown away by Jetspeed, but my bosses are
> > > going to
> > > > have serious questions before I can use it for
> my
> > > > project.
> > > > 
> > > > Mike
> > > > keyofdminor@yahoo.com
> > > > 
> > > > ps. I know this is a dev list versus a user
> list
> > > but
> > > > I'd like to hear from a real hands-on guru,
> hence
> > > my message.
> > > > 
> > > >
> __________________________________________________
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> > > 
> > > --
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> > >
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> > > 
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> > > 
> > 
> > 
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> 
> 
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