This doesn't look like *exactly* what you're after but it looks interesting.
http://www.extreme.indiana.edu/soap/sc00/paper/index.html >From: Thomas Groot <[EMAIL PROTECTED]> >Reply-To: Thomas Groot <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Subject: Re: Architecture problems: decoupling of web and App tier >Date: Wed, 2 Jan 2002 09:24:53 -0700 > >Gene, > >I think you're on the right track, sometimes you have to work around >systems you can't fix. I share Andrzej's concerns about XML parsing speed, >esp. if you have EBay-level performance requirements. Web Services are >definitely coming, though. > >I wonder if anyone on the list has experience deploying Web Svcs (WSDL, >SOAP, etc.) with high-performance reqts yet? Generally the more layers of >indirection you add, the lower your throughput, so high-speed reqts drive >you to tighter coupling and fewer layers. If you want high speed *and* a >decoupled architecture, the most common solution is to throw hardware at >the problem. > >Most large Web sites address this with massive hardware redundancy. It's >common for an Amazon or EBay to deploy hundreds of servers in the Web and >App tiers. Many machines can go down before site performance is affected >much, and these tiers almost never cause total site outages. It's the >network interface in front of the Web servers that is more likely to >contain single points of failure and take the site down. > > >TG > >On Fri, 28 Dec 2001 10:48:28 -0800, Gene Chuang <[EMAIL PROTECTED]> >wrote: > > >Hi Andrzej, > > > >Thanks for your input. Your architecture is a lot like mine at my old >job, Kiko. There > >we had a SSB facade mimicing a State Machine, and a single RequestData >object initializes > >the state machine propagation of synchronous as well as asynchronous >process routes. > > > >To implement that system in my current job would require major >refactoring of the Big > >Blob I mentioned. This may be the long-run goal, but in the short run I >may have to > >design a JMS layer around the Blob to satisfy our immediate needs. > > > >I would like to use XML, not because I would like to add another buzzword >into our > >architecture :-), but because other departments in our company have been >going down the > >SOAP/Web Services route to handle external requests and I want easy >transition and > >adaptability in case we decide to call these external requests ourselves. > > > >Gene > >--- Andrzej Jan Taramina <[EMAIL PROTECTED]> wrote: > >> Gene: >[clip] > >=========================================================================== >To unsubscribe, send email to [EMAIL PROTECTED] and include in the body >of the message "signoff EJB-INTEREST". For general help, send email to >[EMAIL PROTECTED] and include in the body of the message "help". > John M. Harby, CEO JMH Solutions, Inc. _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp. =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff EJB-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
