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From "Derek Hohls" <>
Subject Re: Frustrating "java.lang.OutOfMemoryError" problems
Date Wed, 02 Feb 2005 10:29:09 GMT

Thanks, I will try this - just one question re the regedit - 
under the Apache Software Foundation folder, I have two
subfolders ... 
  Tomcat Service Manager
must I add a new folder called Tomcat5?  Must I add a folder
called Parameters?  And what is the name/type/data for the
key that needs to be added?


>>> 2005/02/02 11:42:21 AM >>>
I had the same problem...

I found this solution that works for me.
On windows i used regedit and modified the following registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\Apache Software Foundation\Tomcat Service 
and added -Xmx512m to improve to 515m.
This for the service:
If tomcat is running from catalina.bat the i added -Xmx512m after the 
expressione %_EXECJAVA%

I hope this will help

Massimiliano Cantoni

Derek Hohls wrote:

>Running: Cocoon 2.1.5; Tomcat/4.1.29; Java 1.4.2; WindowsXP 
>I keep bumping my head into memory problems with *some*
>Cocoon operations.  See the log snippet below - I am trying to
>serialize a SVG file to JPEG -> the process works fine when
>the file sizes are from 1-250k.  As files gets larger (300-500k), 
>I eventually get the dreaded java.lang.OutOfMemoryError message
>in the Tomcat server log.  In fact, in some cases Cocoon *can* 
>process the larger file, but as soon as I hit 'refresh' the memory 
>If I use the Windows task Manager; it seems that Tomcat is not
>using more than about 132MB... the settings for Java *should* allow
>it to use up to 256MB... ie. CATALINA_OPTS is set to: 
>-Xms64m -Xmx256m -Dfile.encoding=ISO-8859-1 -DproxySet=true
>When I run other processes through Cocoon e.g. some of the samples
>then the memory usage can hit about 147MB.
>Any assistance with this is gratefully appreciated.

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