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From Jared Ingersoll <>
Subject Tomcat's Java parameters
Date Tue, 01 Feb 2005 16:18:36 GMT

I am running Tomcat 4.1.X with Java 1.4 as a service on a Win2K box. A
software provider has instructed us to change an environment variable in the
system tab, which is to add the JAVA_OPTS variable with 3 parameters.
However, another document provided by the same company instructs us to make
changes to the HKLM\system\currentControlSet\Service\Apache TomCat 4.1\
registry keys (i.e. "JVM OPTION COUNT" and "JVM OPTION Number 1", etc.),
which has a total of 7 command line parameters for Java.

My questions:

1. Do the system environment variables get called if the app is running as a
2. If they are called, do the registry changes "trump" the $JAVA_OPTS
variable, or is it vice versa?

We are having performance related problems, and need the proper java
settings running under the tomcat service. Not only that, but I would like
to know where we should make these settings.


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