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From markx3 <>
Subject Tomcat cache problem?
Date Tue, 02 Jan 2007 20:51:17 GMT


I have a server running Windows 2003 server SP1.  8 GB of RAM.  Sun Java
J2SE 5.0 update 7 and Tomcat 5.5.20. 

Tomcat is used as our web server to review archived email.  The email is
stored in folders on the server and the archival system uses MS SQL 2000 SP4
on the backend. 

The problem is when we use Tomcat as our web server to review the email, and
we click on several emails, after awhile regardless of the different email
we click on, we get the same data displayed in our web browser.  This really
appears to be a caching issue with Tomcat, because every time we restart the
tomcat service, the problem goes away for a few days and then it happens

To try to fix the issue we gave Tomcat more memory in the Tomcat Properties
/ Java tab.  We set initial memory pool to 128 MB of RAM and maximum memory
pool to 512 MB of RAM.  We also tried setting the IE 6.0 and 7.0 browsers to
check for newer versions of the page every time I visit the webpage.  Both
of these attempts didn’t resolve the issue. 

Since I’m not a web developer I don’t know what to tell you about the
website tomcat is hosting.  Except for that it was a .war file that tomcat
extracts once we place in into the tomcat5.5\webapps directory.  If you need
specifics on what this website is, please let me know and I can get that
info for you.  But looking through it there are all the usual files like
.jsp, .htm, etc. 

Also there isn’t a proxy server on the network.  When users connect to the
website tomcat is hosting, the browser on the local machine is making a
direct connection since it’s on the same subnet. 

Please let me know what suggestions we can use to try to resolve this issue. 

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