Re: AS/400 Web Application Servers

Richard,

 I am afraid I must disagree here. The only statement
you made that was factual was the statements about
Tomcat not supporting ejbs. This is absolutly the
case, and I applaud apache for going this route. Ejbs
unfortunatly are not nearly ready for prime time yet.
They are slow resource intensive monstrosities that,
at the moment should not even be considered for a
production application, but of course this is my
opinion. Aside from that JDBC connection pooling *IS*
supported in Tomcat. Also connection pooling is very
simple to do on your one as well. In fact if anyone
wants some code to do just that in a stand alone
implementation I will be happy to provide it. 

As for j2ee specific things like JMS, JTA etc. That is
a seperate service in and of itself and, in all
probablilty, should not be included in a Web
Application Server. At the very least it does not hurt
anything (and increases performance) to have them
running in thier own environment anyway. I am not even
really sure that Websphere has these options built in
to the product either (correct me if I am wrong). Now
as for comparing Apples and Oranges, I think we are
absolutly comparing Apples and Apples.

Now as for it being a reference implementation. Yes it
is, but it is built on production server technology
(Sun's Java Server if I remember correctly). Its been
proven to be stable at quite a few sites by now. 

And last but not least, it is completly Open Source so
if I want to write a couple of additions that build in
support for JMS or JTA or anything else I can without
a problem and them submit them to apache for inclusion
into the product. Don't get me wrong I am not a big
Open Source fanatic but it is a feature of the
product.

I hope I wasn't argumentative here, I tend to be a
little passionate anymore when it comes to some
technologies.


--- Richard Dettinger <cujo@us.ibm.com> wrote:
> 
> I'm not really defending WebSphere here, but I felt
> I should point this
> out:
> 
> You state that Tomcat is a great web application
> server, but Tomcat is
> really just a sevlet/jsp engine.  You are not going
> to do EJBs, JMS, JTA,
> XML integration, built in JDBC connection/statement
> pooling, etc. in
> Tomcat.  You are going to run servlets and jsps in
> Tomcat.  And that is all
> you are ever going to do with Tomcat as its the
> reference implementation of
> Servlet/JSP specifications.  The project is never
> planned to do anything
> more than that.  If someone knows something more
> than this about this
> topic, please correct me.
> 
> Tomcat is a great piece of software, no doubt (I use
> it in much of my own
> experimenting).  But you are not comparing, in any
> way, apples to apples
> here.
> 
> Regards,
> 
> Richard D. Dettinger
> AS/400 Java Data Access Team
> 
> "Biologists have a special word for stability --
> dead"
> 
>                 Larry Wall
>                 Open Source Developers Journal
>                 Issue 1, Jan  2000
> 
> 
> Eric Merritt <cyberlync@yahoo.com>@midrange.com on
> 04/19/2001 08:50:36 AM
> 
> Please respond to JAVA400-L@midrange.com
> 
> Sent by:  owner-java400-l@midrange.com
> 
> 
> To:   JAVA400-L@midrange.com
> cc:
> Subject:  AS/400 Web Application Servers
> 
> 
> 
> Hello All,
> 
>   I am not sure how many of you are aware of it, but
> there is a Open Source production grade web
> application server out there that is simple to
> install
> and configure, takes about a quarter of the
> resources
> of Websphere and is more compliant with sun's
> specifications. Best of all its free. Its called
> tomcat and you can get it from jakarta.apache.org.
> 
> We have used websphere for our production
> application
> server since v2.01 and we have had nothing but
> problems and trouble since we upgraded to 3.0 (now
> we
> are at 3.5). We recently found tomcat after reading
> an
> article in Midrange Computing (the give some source
> for as/400 start scripts etc). So if you are have
> alot
> of trouble with websphere I would check out tomcat -
> all the information says its just as stable, even
> clusterable now, and cost of ownership in the long
> run
> is much cheaper.
> 
> Now, if any of you IBM people out there know
> something
> I don't feel free to give a rebuttal, but so far in
> my
> personal experiance Tomcat is a much better product
> overall.
> 
> =====
> Eric Merritt
> Information Systems Consultant
> McCormack & Associates, Inc.
> Rock Hill, South Carolina
> (V) 803-327-3358 X 225
> eric@mccinc.com
> http://www.mccinc.com/
> 
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=====
Eric Merritt
Information Systems Consultant
McCormack & Associates, Inc.
Rock Hill, South Carolina
(V) 803-327-3358 X 225
eric@mccinc.com
http://www.mccinc.com/

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