OK here is an attempt
Apache provides the basic tcp/ip protocol stack to service web
request/response
Tomcat provides a specific protocol for servlet /jsp communication and
is built on top of apache(an additional application layer
protocol).Without apache the lower layers would be missing and tomcat
will not be able to communicate to the network.
Drawing an analogy to dlls ,the code and data of the in process servlet
containers is mapped into the processing space of the jsp engine/web
server application whereas out of process servlet containers exist as
an independant process so you need to marshall across process
boundaries(recall most modern os compartmentalize programs and are very
strict with interference) so you have a boundary overhead when using
out of process servlet containers.
hope this helps.
Please point out any inaccuracies or mistakes you may find that way we
all learn.
cheers
[EMAIL PROTECTED]
-----Original Message-----
From: Gogia Nitin [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 10, 2000 2:29 PM
To: [EMAIL PROTECTED]
Subject: Apache With Tomcat
I again repeat my question which i asked yesterday to which i haven't
received any replies.
What's the use of using Apache With Tomcat when Tomcat itself can
service
all the requests for servlets ?
One more question
Can anyone describe what are In-process servlet containers and
Out-of-process servlet containers and how does Tomcat relates to them.
(Little Description about In-process and Out-of Process servlet
containers
is given in Tomcat User Guide but more clarification, links about them
will
be appreciated).
Thanks in advance.
Nitin
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Some relevant FAQs on JSP/Servlets can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
