Re: More Info..... Install/set-up SOAP in a N-tier envi ronment

[George I Matkovits <ma...@uswest.net>]

It all depends. For a very large Web-Farm you would use a scalable configuration
with 'auto-rollover' for reliability. A servlet container itself is not
transactional. J2EE Application Servers are. Servlets/JSPs are good for User
Interface Work but for Business Critical Processing (e.g. Data Base Access) IMHO
an AppServer  is required with its transactional attributes. In a real Web
Services B2B environment Soap would be used over an MQ or MSMQ  like transport
talking to an Application Server (We would not want to loose an order for a 747
would we?) A 'real' MQ Series Soap client would be programmatically notified by
its 'pear' soap-server-object when its request has made it into a
'transactionally safe' container.  PLEASE do not start now redesigning the
Apache Soap Implementation  to do load balancing, talk transactionally to EJBs
and try to do everything for everyone all the time. IMHO creating scalable and
reliable large scale systems is  in the J2EE architecture's realm and NOT Soaps.
That is why there is room for RMI (over IIOP) and CORBA protocols in addition to
Soap. To my biased engineer mind Soap is just a 'firewall' piercing protocol
(and currently the only good one) for fancy 'universal' ASCII data: called XML.
Regards - George

"Gould, Steven [Dal]" wrote:

> >From what some of the others have said, that sounds fine. However, an
> alternative would still be to install SOAP on the WebServer (provided it has
> a servlet engine), and configure it to send requests to the app server. I'm
> not sure what the pro's and cons of each configuration would be, but here
> are some I can think of:
>
> Installing SOAP on the web server:
>  * better architectural design because the communications (SOAP) is handled
> by the web server - something it does well - and the business logic (EJBs)
> is handled on the app. server.
>  * does this make for a more scalable solution? (I don't know)
>  * see also George I Matkovits' posting.
>
> Installing SOAP on the app server:
>  * control of the communications and business logic in one place - could
> argue that this makes for easier administration (though I don't necessarily
> subscribe to this idea).
>
> Anything else?
>
> Steve
>
> -----Original Message-----
> From: Jackson  George
> To: 'soap-dev@xml.apache.org'
> Cc: Gould, Steven [Dal]
> Sent: 9/19/00 10:52 AM
> Subject: RE:   More Info.....       Install/set-up SOAP   in a N-tier envi
> ronment
>
> I think here what I think.....
>
>    When you have
>      Browser->   WEbserver--->  WebLogic Server---> DB
>
>    WEbserver and Weblogic are in different System
>
>   then
>
>    1) Once a SOAP request comes in, then
>
>    2) Webserver will just direct the SOAP request to the APPLICATION
> server
> there You
>       have the SOAP PROXY/server Running  there all the Parsing and the
> related thing
>       Happening, in that case we have to install SOAP Part of
> WeblogicServer
> Server machine
>       Not in the Webserver Machine...
>
>    Please comment it
>
>  Thanks
>   Jackson George
>    jgeorge@necx.com
>
> -----Original Message-----
> From: Gould, Steven [Dal] [mailto:steven.gould@cgiusa.com]
> Sent: Tuesday, September 19, 2000 10:07 AM
> To: Jackson George; ''soap-dev@xml.apache.org' '
> Subject: RE: Install/set-up SOAP in a N-tier environment
>
> Jackson,
>
> It depends on your configuration. But as I understand it - and I am new
> to
> SOAP - I think(?) it could be done either way: install SOAP with the web
> server, or with the app. server. You'd need slightly different
> configurations for each of these setups.
>
> Perhaps some of the veteran SOAP developers on this list could shed a
> little
> more light on the subject. Anyone?
>
> Steve
>
> -----Original Message-----
> From: Jackson  George
> To: 'soap-dev@xml.apache.org'
> Cc: Gould, Steven [Dal]
> Sent: 9/19/00 9:41 AM
> Subject: Install/set-up SOAP   in a N-tier environment
>
> Hi Steven Gould
>
>   Your attached Doc was Great ....!, I too was trying to achieve this
> you
> done it well.
>    Congra....
>
>   Now here is the Question ?
>   If we have a
>     Client/Browser->   WebServer ->  WEblogic server-> DB
>
>     Here WEbserver and Weblogic are installed in a seperate machine,
>    in this scenariao
>     1). WHcih machine we have to install the SOAP,
>
>     Please give Your comments
>     Jackson George
>     jgeorge@necx.com
>
> Attached is an HTML file describing how to install SOAP under WebLogic
> Server. This information was omitted from the SOAP documentation, but I
> felt that it might be useful to other users if included in the SOAP
> distribution (under docs/install), or on the xml.apache.org/soap web
> site. Feel free to edit or reformat the text as you see fit.
>
> Sincerely,
>
> Steven Gould
>
> ========================================================================
> ====
> This message is intended only for the use of the Addressee(s) and may
> contain information that is PRIVILEGED and CONFIDENTIAL. If you are not
> the intended recipient, dissemination of this communication is
> prohibited.
> If you have received this communication in error, please erase all
> copies
> of the message and its attachments and notify postmaster@verticalnet.com
> immediately.
> ========================================================================
> ====
>
> ========================================================================
> ====
> This message is intended only for the use of the Addressee(s) and may
> contain information that is PRIVILEGED and CONFIDENTIAL. If you are not
> the intended recipient, dissemination of this communication is
> prohibited.
> If you have received this communication in error, please erase all
> copies
> of the message and its attachments and notify postmaster@verticalnet.com
> immediately.
> ========================================================================
> ====