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From: =?iso-8859-1?Q?Julian_L=F6ffelhardt?= <julian@austria.fm>
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
Subject: reducing tomcat & jasper memory footprint
Date: Mon, 30 Dec 2002 20:37:10 +0100
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Hi,

I'm using Apache 1.3.26 and 3 tomcat 4.0.4 instances with AJP13 & =
loadbalancing .
Our application is a CMS where all the published articles are generated =
offline as JSP-Files, one jsp per article.

We had hige problems with the memory footprint. Due to the fact that =
every jsp is generated as a class and there are about 200 new artices =
per day the permanent segment of the JVM heap gets filled with all the =
classes, and I get an OutOfMemoryError.
My workaround for now is setting -XX:PermSize and --XX:MapPermSize to =
higher values, but this just delays application hang-up.

With 64 megs of permSize our Server had an approx. uptime of 1 day now =
it's about 3-4 days.

Is there any way to unload jsp-Files (unload the class) ?

llap,
julian


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