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Adjust Tomcat startup parameters under Windows

By default, the memory that can be used by Tomcat is 128MB, which is not enough for applications with more visits and more memory-eating. We can increase the memory available to Tomcat by adjusting the startup parameters of the Java virtual machine.

Here are two well-known parameters

-Xms JVM initialization heap size-the maximum value of the Xmx JVM heap

For example, I want to set the initial memory size to 128m and take up 1G at most, which is the following setting:

-Xms128m-Xmx1024m

Under Linux/Unix, you can do this by adding or modifying JAVA_OPTS in {tomcat_dir} / bin/catalina.sh:

JAVA_OPTS= "- Xms128m-Xmx1024m"

In the installation-free version of Windows, you can do this by adding or modifying JAVA_OPTS in {tomcat_dir} / bin/catalina.bat:

Set JAVA_OPTS=-Xms128m-Xmx1024m

But the service startup version of Tomcat7, which I installed on Windows, does not have a bin/catalina.bat file, so how to change it?

The answer is: modify the registry.

Run regedit

Locate the registry key: HKEY_LOCAL_MACHINE\ SOFTWARE\ Apache Software Foundation

Then look for Procrun 2.0\ Tomcat7\ Parameters\ Java

There is an Options setting

-Dcatalina.home=C:\ Program Files\ Apache Software Foundation\ Tomcat 7.0-Dcatalina.base=C:\ Program Files\ Apache Software Foundation\ Tomcat 7.0-Djava.endorsed.dirs=C:\ Program Files\ Apache Software Foundation\ Tomcat 7\ endorsed-Djava.io.tmpdir=C:\ Program Files\ Apache Software Foundation\ Tomcat 7\ temp-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager-Djava.util.logging.config.file=C:\ Program Files\ Apache Software Foundation\ Tomcat 7\ conf\ logging.properties

Double-click it to edit and add the following two lines at the end:

-Xms128M-Xmx1024M

Different versions of Tomcat need to adjust different registry entries

For example:

Tomcat5 is

HKEY_LOCAL_MACHINE\ SOFTWARE\ Apache Software Foundation\ Tomcat Service Manager\ Tomcat5\ Parameters\ JavaOptions

Tomcat6 is

HKEY_LOCAL_MACHINE\ SOFTWARE\ Apache Software Foundation\ Procrun 2.0\ Tomcat6\ Parameters\ Java

Tomcat7 is

HKEY_LOCAL_MACHINE\ SOFTWARE\ Apache Software Foundation\ Procrun 2.0\ Tomcat7\ Parameters\ Java

If you have any questions, please leave a message or go to the community to exchange and discuss, thank you for reading, hope to help you, thank you for your support!

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