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From "Richard Mixon" <>
Subject RE: How to deploy when JSPs need to change regularly?
Date Thu, 03 Nov 2005 15:24:05 GMT

Just using a ".war" file to deploy from should not keep you from updating
the JSP pages. We do occasional patches to our JSP pages in a two-server
cluster with no problem.

However if you pre-compile the JSP pages before building the ".war" file
that could pose an issue.

Using CVS as a replication utility to install modified JSP's to each
Tomcat's webapp directory is pretty innovative - but I wonder if it does not
also present some problems. For one, I've never seen a WAR file build that
has the entire CVS "checkout" directory structure in it - i.e. the hardcoded
"CVS" subdirectory and its associated files that are placed in each
directory of the checked-out CVS module. That does not mean it will not
work, it probably should. In fact if you are going to do updates from CVS
you would need to be sure those CVS directories were in the ".war" file.

It might be a good idea to use an rsync (on Linux/Unix ?) script or
something similar instead of CVS to replicate the updates. 

Hope this helps - Richard

-----Original Message-----
From: Kurt Overberg [] 
Sent: Thursday, November 03, 2005 7:20 AM
Subject: How to deploy when JSPs need to change regularly?

Hello All, I'm currently running mid-sized website (load balanced across
five servers).  Its a fairly large web application with a front and a
back-end.  In production, the application is sitting exploded in a directory
which tomcats point at.  It looks rather like a development sandbox.  I do
this because our web people need to modify the content
(JSPs) of the website on a fairly regular basis.  Right now, they can just
"cvs update" the webapp directory and things work great.

However, this is a bit of a deployment nightmare.  Everytime I need to push
out a new version of the core servlets, I have to manually update each and
every sandbox on each server.  I would MUCH rather use a .war file to deploy
to each server and let tomcat deal with things (since the website is really
starting to grow).  Is there any way to deploy a .war file and then let
people modify the JSPs in it?  Complicating things is that we use CVS for
everything, and new JSPs make their way to the site via a cvs update.

Right now, it seems like everytime someone changed a JSP, I'd have to
re-deploy the entire thing, when really its just a few JSPs that have
changed.  The web guys update the site an average of 10-20 times per day.

Any suggestions?  Seems like this would be a pretty common problem, but I've
found nothing on google, et al.  Do I have to move to some sort of content
management system, where the servlets and JSPs remain static and the data
comes from a DB?

Thanks for any help or suggestions!


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